DEMO MANUAL DC2312A-A/DC2312A-B LTC3882EUJ-1 High Efficiency Step-Down DC/DC Converter with Power System Management DESCRIPTION Demonstration circuit 2312A is a high current, high efficiency, dual phase synchronous buck converter featuring the LTC3882EUJ-1, a dual output voltage mode controller with the additional features of differential VOUT sense and dedicated PGOOD output on both channels, compared to LTC3882. The LTC3882-1 has the PMBus interface and power system management functions. There are two versions of the boards available: nn nn DC2312A-A: Dual phase dual output configuration. Default output setting VOUT0 = 1.5V/35A, VOUT1 = 1.0V/35A. DC2312A-B: Dual phase single output configuration. Default output setting VOUT0 = 1.0V/70A. The DC2312A powers up to default settings and produces power based on configuration resistors or with its nonvolatile memory without the need for any serial bus communication. This allows easy evaluation of the PERFORMANCE SUMMARY SYMBOL PARAMETER VIN Input Supply Range VOUT0 Output Voltage Range (-A Version) IOUT0 Output Current Range (-A Version) VOUT1 Output Voltage Range (-A Version) IOUT1 Output Current Range (-A Version) VOUT0 Output Voltage Range (-B Version) IOUT0 Output Current Range (-B Version) FSW Factory Default Switching (-A Version) DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlayTM onto your PC and use LTC's I2C/SMBus/PMBus Dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration settings within its onboard EEPROM, along with viewing telemetry parameters that include voltage, current, temperature and fault status. GUI Software LTpowerPlay Download The software can be downloaded from: http://www.linear.com/LTpowerPlay Design files for this circuit board are available at http://www.linear.com/demo/DC2312A L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Specifications are at TA = 25C CONDITIONS MIN TYP 7 12 14 V IOUT0 = 0A to 35A, VIN = 7V to 14V 0.5 1.5 2.0* V 35** A 0 IOUT1 = 0A to 35A, VIN = 7V to 14V 0.5 1.0 0 IOUT0 = 0A to 70A, VIN = 7V to 14V 0.5 1.0 0 MAX UNITS 2.0* V 35** A 2.0* V 70** A 500 kHz 450 kHz 90.6 % FSW Factory Default Switching (-B Version) EFFICIENCY Full Load Efficiency (-A Version) VOUT0 = 1.5V, IOUT0 = 35A, See Figure 5 VOUT1 = 1.0V, IOUT1 = 35A, See Figure 5 88.0 % Full Load Efficiency (-B Version) VOUT0 = 1.0V, IOUT0 = 70A, See Figure 6 87.8 % *Note: The DC2312A uses 2.5V-rated low ESR PosCAP (Part No. 2R5TPE470M7) as output capacitors for optimized load transient performance. If > 2.0V VOUT is needed, 4V or 6.3V-rated output capacitors should be used. **Note: When continuously running at full load, forced air flow is needed. dc2312afb 1 DEMO MANUAL DC2312A-A/DC2312A-B QUICK START PROCEDURE Demonstration circuit 2312A makes it easy to set up to evaluate the performance of the LTC3882-1. Refer to Figures 2 and 3 for proper measurement equipment setup and follow the procedure below. NOTE. When measuring the input or output voltage ripple, care must be taken to avoid a long ground lead on the oscilloscope probe. Measure the output voltage ripple by touching the probe tip directly across the C13 or C39. See Figure 4 for proper scope probe technique. 1. Make sure jumpers are in the following positions: DC2312A-A Version 2. With power off, connect the input power supply to VIN and GND. Connect active load to the output. 3. Make sure both RUN switches are OFF. 4. Turn on the power at the input. Note. Make sure that the input voltage does not exceed 15V. 5. Turn on RUN switches as desired. 6. Check for the correct output voltage from VOUT0+ to VOUT0- and from VOUT1+ to VOUT1- . Note. If there is no output, temporarily disconnect the load to make sure that the load is not set too high. JUMPER POSITION JP1 NC Untie GPIO0B to GPIO1B FUNCTION JP2 NC Untie RUN0 to RUN1 JP4 ON External 5V VDR for DrMOS JP6 ON External 5V VCC for LTC3882-1 7. Once the proper output voltage is established, adjust the loads within the operating range and observe the output voltage regulation, ripple voltage, efficiency and other parameters. 8. Connect the dongle and control the output voltages from the GUI. See LTpowerPlay Quick Start Procedure session for details. DC2312A-B Version JUMPER POSITION JP1 C FUNCTION Tie GPIO0B to GPIO1B JP2 C Tie RUN0 to RUN1 JP4 ON External 5V VDR for DrMOS JP6 ON External 5V VCC for LTC3882-1 CONNECTING A PC TO DC2312A You can use a PC to reconfigure the power management features of the LTC3882-1 such as: nominal VOUT, margin set points, OV/UV limits, temperature fault limits, sequencing parameters, the fault log, fault responses, GPIO and other functionality. The DC1613A dongle may be plugged in regardless of whether or not VIN is present. Dongle can be hot plugged. +12V POWER SUPPLY USB CABLE USB TO I2C/PMBUS DONGLE DC1613A VIN 12-PIN CONNECTOR VOUT0 LTC3882-1 DEMO BOARD DC2312A VOUT1 LOAD LOAD DC2312A F01 Figure 1. Demo Setup with PC dc2312afb 2 DEMO MANUAL DC2312A-A/DC2312A-B QUICK START PROCEDURE - SHUNT IOUT0 VOUT0 V OUT0 LOAD + - + A + VIN + - + - IIN - POWER SUPPLY DC1613A CONNECTOR IOUT1 + - V OUT1 LOAD SHUNT - + V OUT1 DC2312A F02 Figure 2. Power Test Setup for DC2312A-A dc2312afb 3 DEMO MANUAL DC2312A-A/DC2312A-B QUICK START PROCEDURE - SHUNT IOUT0_1 V OUT0 LOAD 1 + VOUT0 - + A + VIN + - + - IIN FOR BETTER THERMAL DISTRIBUTION, USE A PIECE OF LOW IMPEDANCE METAL TO CONNECT TOP LAYER VOUT COPPER AND PULL CURRENT EVENLY FROM J3 TO J4 AND FROM J9 TO J8. - POWER SUPPLY DC1613A CONNECTOR IOUT0_2 + - V OUT0 LOAD 2 SHUNT DC2312A F03 Figure 3. Power Test Setup for DC2312A-B dc2312afb 4 DEMO MANUAL DC2312A-A/DC2312A-B QUICK START PROCEDURE COMBINING DC2312A WITH OTHER DIGITAL POWER DEMO BOARDS MEASURING EFFICIENCY (SEE FIGURES 5 AND 6) The DC2312A may be plugged together in a multi-board array with other LTC power system management boards using J12 and J13. To accurately measure efficiency of any configuration, do the following: nn nn MEASURING OUTPUT RIPPLE VOLTAGE An accurate ripple measurement may be performed by using the configuration in Figure 4 across C13 or C39. nn nn + VOUT Set JP4 and JP6 on the "OFF" position. Connect external 5V supply to VDR and VCC turrets and measure its input current. Measure VIN across the input ceramic capacitor (C10, C6). Measure VOUT across the output ceramic capacitor (C13, C39). Add the loss from external 5V supply into the efficiency calculation. - COUT GND 95 95 90 90 85 85 EFFICIENCY (%) EFFICIENCY (%) Figure 4. Measuring Output Voltage Ripple 80 75 70 65 5 10 15 20 25 LOAD CURRENT (A) 30 80 75 70 VOUT0 = 1.5V VOUT1 = 1.0V 0 VOUT0 = 1.0V 35 DC2312A F05 Figure 5. DC2312A-A, Typical Efficiency Curves, VIN = 12V, FSW = 500kHz, CCM 65 0 10 20 30 40 50 LOAD CURRENT (A) 60 70 DC2312A F06 Figure 6. DC2312A-B, Typical Efficiency Curves, VIN = 12V, FSW = 450kHz, CCM dc2312afb 5 DEMO MANUAL DC2312A-A/DC2312A-B QUICK START PROCEDURE Figure 7. Load Transient Waveform DC2312A-A, VIN = 12V, VOUT0 = 1.5V, FSW = 500kHz, 0% to 25% (8.75A) Load Step Figure 8. Load Transient Waveform DC2312A-A, VIN = 12V, VOUT1 = 1.0V, FSW = 500kHz, 0% to 25% (8.75A) Load Step Figure 9. Load Transient Waveform DC2312A-B, VIN = 12V, VOUT0 = 1.0V, FSW = 450kHz, 0% to 25% (17.5A) Load Step dc2312afb 6 DEMO MANUAL DC2312A-A/DC2312A-B QUICK START PROCEDURE Figure 10. Thermal Picture of DC2312A-A, VIN = 12V, VOUT0 = 1.5V/35A, VOUT1 = 1.0V/35A, fSW = 500kHz, 400LFM Air Flow Figure 11. Thermal Picture of DC2312A-B, VIN = 12V, VOUT0 = 1.0V/70A, fSW = 450kHz, 400LFM Air Flow dc2312afb 7 DEMO MANUAL DC2312A-A/DC2312A-B LTpowerPlay SOFTWARE GUI LTpowerPlay is a powerful Windows-based development environment that supports Linear Technology power system management ICs, including the LTC3880, LTC3882/LTC3882-1, LTC3883, LTM4676A, LTC2974 and the LTC2978. The software supports a variety of different tasks. You can use LTpowerPlay to evaluate Linear Technology ICs by connecting to a demo board system. LTpowerPlay can also be used in an offline mode (with no hardware present) in order to build a multi-chip configuration file that can be saved and reloaded at a later time. LTpowerPlay provides unprecedented diagnostic and debug features. It becomes a valuable diagnostic tool during board bring-up to program or tweak the power management scheme in a system, or to diagnose power issues when bringing up rails. LTpowerPlay utilizes the DC1613A USB-to-SMBus controller to communicate with one of many potential targets, including the LTC38821's DC2312A demo system, or a customer board. The software also provides an automatic update feature to keep the software current with the latest set of device drivers and documentation. The LTpowerPlay software can be downloaded from: http://www.linear.com/LTpowerPlay To access technical support documents for LTC Digital Power Products visit Help. View online help on the LTpowerPlay menu. Figure 12. LTpowerPlay Main Interface dc2312afb 8 DEMO MANUAL DC2312A-A/DC2312A-B LTpowerPlay QUICK START PROCEDURE The following procedure describes how to use LTpowerPlay to monitor and change the settings of LTC3882-1 (taking DC2312A-A as an example). d. If you want to change the output voltage to a different value, like 1.2V. In the Config tab, type in 1.2 in the VOUT_COMMAND box, like this: 1. Download and install the LTPowerPlay GUI: http://www.linear.com/LTpowerPlay 2. Launch the LTpowerPlay GUI. a. The GUI should automatically identify the DC2312A-A. The system tree on the left hand side should look like this: b. A blue message box shows for a few seconds in the lower left hand corner, confirming that the LTC3882-1 is communicating: Then, click the "W" (PC to RAM) icon to write these register values to the LTC3882-1. After finishing this step, you will see the output voltage will change to 1.2V. c. In the Toolbar, click the "R" (RAM to PC) icon to read the RAM from the LTC3882-1. This reads the configuration from the RAM of LTC3882-1 and loads it into the GUI: If the write is successful, you will see the following message: e. You can save the changes into the NVM. In the tool bar, click "RAM to NVM" button, as following: f. Save the demo board configuration to a (*.proj) file. Click the Save icon and save the file with a new name. dc2312afb 9 DEMO MANUAL DC2312A-A/DC2312A-B PARTS LIST DC2312A-A ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 3 C5, C52, C53 CAP., X7R, 0.1F, 16V, 10%, 0402 AVX, 0402YC104KAT2A 2 3 CF, COUT4, COUT5 CAP., X7R, 0.1uF, 16V, 10%, 0603 AVX, 0603YC104KAT2A 3 2 CFFW1, CFFW2 CAP., NP0, 22pF, 25V, 10%, 0402 AVX, 04023A220KAT2A 4 1 CIN1 CAP., X5R, 10F, 25V, 20%, 1206 AVX, 12063D106MAT2A 5 2 COUT3, COUT7 CAP., X5R, 10F, 16V, 10%, 0805 AVX, 0805YD106KAT2A 6 1 CIN3 CAP., TANT, 22F, 35V, 20%, 7343 AVX, TCME226M035R0025 7 4 C6, C10, C33, C34 CAP., X5R, 22F, 25V, 10%, 1210 MURATA, GRM32ER61E226KE15L 8 6 C1, C2, C8, C31, C35, C9 CAP., X5R, 1F, 10V, 20%, 0402 MURATA, GRM155R61A105ME15D 9 1 C7 CAP., X5R, 2.2F, 10V, 20%, 0402 Taiyo Yuden, LMK105BJ225MV-F 10 3 C47, C57, C58 CAP., X5R, 1F, 16V, 10%, 0805 AVX, 0805YD105KAT2A 11 2 C3, C4 CAP., OS-CON, 330F, 16V, 20%, F12 PANASONIC, 16SVP330M 12 2 C11, C36, CAP., X7R, 100nF, 16V, 10%, 0402 MURATA, GRM155R71C104KA88D 13 1 C45 CAP., X7R, 100nF, 16V, 10%, 0603 TDK, C1608X7R1C404KT000N 14 8 C12, C13, C14, C23, C38, C39, C40, C43 CAP., X5R, 100F, 6.3V, 20%, 1206 MURATA, GRM31CR60J107ME39L 15 8 C15, C16, C26, C27, C17, C18, C19, C28 CAP., POSCAP, 470F, 2.5V, D2E SIZE PANASONIC, EEFGX0E471R 16 2 L1, L2 IND., 0.17H COOPER., FP1007R3-R17-R 17 1 R1 RES., CHIP, 1, 1%, 0402 VISHAY, CRCW04021R00FKED 18 2 R2, R15 RES., CHIP, 24.9k, 1%, 0402 VISHAY, CRCW040224K9FKED 19 2 R93, R94 RES., CHIP, 200, 1%, 0603 VISHAY, CRCW0603200RFKED 20 3 R80, R81, R84 RES., CHIP, 127, 1%, 0603 VISHAY, CRCW0603127RFKEA 21 1 R87 RES., CHIP, 15.8k, 1%, 0603 VISHAY, CRCW060315K8FKEA 22 2 U1, U3 IC, HIGH FREQUENCY DrMOS MOUDLE FAIRCHILD, FDMF5820DC 23 1 U2 IC, LTC3882EUJ-1, QFN 6mm x 6mm LINEAR TECH., LTC3882EUJ-1#0134-1PBF 24 1 U5 IC EEPROM 2KBIT 400kHz 8 TSSOP MICROCHIP, 24LC025-I/ST 25 1 U6 IC., LTC3607EMSE, 16 Pin QFM 3mm x 3mm LINEAR TECH., LTC3607IMSE#PBF 26 1 R20 RES., CHIP, 53.6k, 1%, 0402 VISHAY, CRCW040253K6FKED 27 1 C50 CAP., NP0, 10pF, 25V, 10%, 0402 AVX, 04023A100KAT2A 28 1 C54 CAP., X7R, 220pF, 50V, 10%, 0402 MURATA, GRM155R71H221KA01D 29 2 C21, C55 CAP., X7R,680pF, 50V, 10%, 0402 MURATA, GRM155R71H681KA01D dc2312afb 10 DEMO MANUAL DC2312A-A/DC2312A-B PARTS LIST DC2312A-A ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Additional Demo Board Circuit Components 1 0 D4, D7 (OPT) OPTIONAL 2 2 C20, C42 CAP., X5R, 0.22F, 16V, 10%, 0402 TDK, C1005X5R1C224K 3 1 C22 CAP., X7R, 220pF, 50V, 10%, 0402 MURATA, GRM155R71H221KA01D 4 2 C29, C44 CAP., X7R, 0.01F, 16V, 10%, 0603 AVX, 0603YC103KAT2A 5 2 C32, C48 CAP., X7R, 0.01F, 16V, 10%, 0402 AVX, 0402YC103KAT2A 6 1 C30 CAP., NP0, 10pF, 25V, 10%, 0402 AVX, 04023A100KAT2A 7 2 D9, D11 LED, GREEN RECT CLEAR 0603 LITE ON, LTST-C193KGKT-5A 8 3 D5, D6, D10 LED, RED RECT CLEAR 0603 LITE ON, LTST-C193KRKT-5A 9 1 D8 DIODE, ULTRA LOW SCHOTTKY RECTIEIER NXP SEMI. PMEG2005AEL,315 10 2 L3, L4 IND., 4.7H VISHAY, IHLP1616BZER4R7M11 11 2 Q1, Q6 TRANS, PNP GP 40V 200MA SC75-3 ON SEMI, MMBT3906TT1G 12 1 Q3 MOSFET, SPEED SRS 30V 30A LFPAK RENESAS, RJK0305DPB-00#J0 13 4 Q19, Q20, Q21, Q22 MOSFET, P-CH 20V 5.9A SOT-23 VISHAY, Si2365EDS-T1-GE3 14 2 Q23, Q24 MOSFET, N-CH 60V 115MA SOT23 DIODES INC., 2N7002-7-F 15 1 RF RES., CHIP, 100, 1%, 0402 VISHAY, CRCW0402100RFKED 16 2 RPG1, RPG2 RES., CHIP, 100k, 1%, 0402 VISHAY, CRCW0402100KFKED 17 2 RSD1, RSD2 RES., CHIP, 5.1M, 5%, 0402 VISHAY, CRCW04025M10JNED 18 2 R5, R25 RES., CHIP, 0, 0402 VISHAY, CRCW04020000Z0ED 19 5 R16, R24, R71, R73, R83 RES., CHIP, 0, 0603 VISHAY, CRCW06030000Z0EA 20 1 R45 SENSE RES., 0.010 1W 1% 2512 PANASONIC, ERJ-M1WSF10MU SENSE RES., 0.001 1W 1% 2512 PNANSONIC, ERJ-M1WTF1M0U 21 1 R48 22 0 R29, R30, R31, R32, R33, R34, R35, R36, OPTIONAL R37, R38, R39, R40, R53, R68, R72, R74, R75, R78, R82, R90, R91, R92 (OPT) 23 2 R7, R27 RES., CHIP, 2.67k, 1%, 0402 VISHAY, CRCW04022K67FKED RES., CHIP, 1.24k, 1%, 0402 VISHAY, CRCW04021K24FKED 24 1 R9 25 13 R10, R11, R13, R14, R17, R19, R21, R28, RES., CHIP, 10k, 1%, 0603 R41, R42, R43, R44, R86 VISHAY, CRCW060310K0FKEA 22 1 R12 RES., CHIP, 53.6k, 1%, 0402 VISHAY, CRCW040253K6FKED 23 4 R57, R58, R59, R60 RES., CHIP, 1k, 1%, 0402 VISHAY, CRCW04021K00FKED 24 2 R63, R65 RES., CHIP, 121k, 1%, 0402 VISHAY, CRCW0402121KFKED 25 2 R64, R66 RES., CHIP, 887k, 1%, 0402 VISHAY, CRCW0402887KFKED 26 2 R69, R70 RES., CHIP, 10, 1%, 0603 VISHAY, CRCW060310R0FKEA 27 2 R76, R77 RES., CHIP, 4.99k, 1%, 0603 VISHAY, CRCW06034K99FKEA 28 0 R62, R67, R98, R99, R101 OPTIONAL 29 0 R61, R100 OPTIONAL 30 2 R22, R46 RES., CHIP, 0, 0603 31 0 C37, C41 OPTIONAL 32 1 R18 RES., CHIP, 1.24k, 1%, 0402 33 0 R49 OPTIONAL VISHAY, CRCW06030000Z0EA VISHAY, CRCW04021K24FKED dc2312afb 11 DEMO MANUAL DC2312A-A/DC2312A-B PARTS LIST DC2312A-A ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Hardware - For Demo Board Only 1 28 E1-E4, E7-E19, E21-E31 TESTPOINT, TURRET, .094" MILL-MAX, 2501-2-00-80-00-00-07-0 2 2 J1, J2 BANANA SMALL KEYSTONE, 575-4 3 4 J3, J4, J8, J9 STUD, TESTPIN PEM, KFH-032-10 4 8 J3, J4, J8, J9 ( X2 ) NUT, BRASS 10-32 ANY #10-32M/S BR PL 5 4 J3, J4, J8, J9 RING, LUG #10 KEYSTONE, 8205 6 4 J3, J4, J8, J9 WASHER, TIN PLATED BRASS ANY #10 EXT BZ TN 7 4 JP1, JP2, JP4, JP6 HEADER, 3 PIN 0.079 SINGLE ROW WURTH, 620 003 111 21 8 4 JP1, JP2, JP4, JP6 SHUNT SAMTEC, 2SN-BK-G 9 2 SW3, SW4 CONNECTOR, SUB MINIATURE SLIDE SWITCHES C&K.,JS202011CQN 10 3 J7, J10, J14 CONN., BNC PC MOUNT RECEPT. JACK, 50, TF-4 POST CONNEX, 112404 11 1 J11 HEADER 12POS 2MM STR DL PCB FCI, 98414-G06-12ULF 12 1 J12 CONN., HEADER, 2X7, 2mm, R/A (F) SULLINS, NPPN072FJFN-RC 13 1 J13 CONN., HEADER, 2X7, 2mm, R/A (M) MOLEX, 87760-1416 14 1 J15 HEADER, 4 PINS, SHROUDED HIROSE, DF3A-4P-2DSA dc2312afb 12 DEMO MANUAL DC2312A-A/DC2312A-B PARTS LIST DC2312A-B ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 3 C5, C52, C53 CAP., X7R, 0.1F, 16V, 10%, 0402 AVX, 0402YC104KAT2A 2 3 CF, COUT4, COUT5 CAP., X7R, 0.1F, 16V, 10%, 0603 AVX, 0603YC104KAT2A 3 2 CFFW1, CFFW2 CAP., NP0, 22pF, 25V, 10%, 0402 AVX, 04023A220KAT2A 4 1 CIN1 CAP., X5R, 10F, 25V, 20%, 1206 AVX, 12063D106MAT2A 5 2 COUT3,COUT7 CAP., X5R, 10F, 16V, 10%, 0805 AVX, 0805YD106KAT2A 6 1 CIN3 CAP., TANT, 22F, 35V, 20%, 7343 AVX, TCME226M035R0025 7 4 C6, C10, C33, C34 CAP., X5R, 22F, 25V, 10%, 1210 MURATA, GRM32ER61E226KE15L 8 6 C1, C2, C8, C31, C35, C9 CAP., X5R, 1F, 10V, 20%, 0402 MURATA, GRM155R61A105ME15D 9 1 C7 CAP., X5R, 2.2F, 10V, 20%, 0402 Taiyo Yuden, LMK105BJ225MV-F 10 3 C47, C57, C58 CAP., X5R, 1F, 16V, 10%, 0805 AVX, 0805YD105KAT2A 11 2 C3, C4 CAP., OS-CON, 330F, 16V, 20%, F12 PANASONIC, 16SVP330M 12 2 C11, C36 CAP., X7R, 100nF, 16V, 10%, 0402 MURATA, GRM155R71C104KA88D 13 1 C45 CAP., X7R, 100nF, 16V, 10%, 0603 TDK, C1608X7R1C404KT000N 14 8 C12, C13, C14, C23, C38, C39, C40, C43 CAP., X5R, 100F, 6.3V, 20%, 1206 MURATA, GRM31CR60J107ME39L 15 8 C15, C16, C26, C27, C17, C18, C19, C28 CAP., POSCAP, 470F, 2.5V, D2E SIZE PANASONIC, EEFGX0E471R 16 2 L1, L2 IND., 0.17H COOPER., FP1007R3-R17-R 17 1 R1 RES., CHIP, 1, 1%, 0402 VISHAY, CRCW04021R00FKED 18 2 R2, R15 RES., CHIP, 24.9k, 1%, 0402 VISHAY, CRCW040224K9FKED 19 2 R93, R94 RES., CHIP, 200, 1%, 0603 VISHAY, CRCW0603200RFKED 20 3 R80, R81, R84 RES., CHIP, 127, 1%, 0603 VISHAY, CRCW0603127RFKEA 21 1 R87 RES., CHIP, 15.8k, 1%, 0603 VISHAY, CRCW060315K8FKEA 22 2 U1, U3 IC, HIGH FREQUENCY DrMOS MOUDLE FAIRCHILD, FDMF5820DC 23 1 U2 IC, LTC3882EUJ-1, QFN 6mm x 6mm LINEAR TECH., LTC3882EUJ-1#0315-1PBF 24 1 U5 IC EEPROM 2KBIT 400kHz 8TSSOP MICROCHIP, 24LC025-I/ST 25 1 U6 IC., LTC3607EMSE, 16 Pin QFM 3 x 3mm LINEAR TECH., LTC3607IMSE#PBF 26 2 C37, C41 CAP., NP0, 22pF, 25V, 10%, 0402 AVX, 04023A220KAT2A 27 1 R49 RES., CHIP, 0, 2512, 1W VISHAY, CRCW25120000Z0EG 28 1 C21 CAP., X7R, 470pF, 50V, 10%, 0402 MURATA, GRM155R71H471KA01D dc2312afb 13 DEMO MANUAL DC2312A-A/DC2312A-B PARTS LIST DC2312A-B ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Additional Demo Board Circuit Components 1 0 D4, D7 (OPT) OPTIONAL 2 2 C20, C42 CAP., X5R, 0.22F, 16V, 10%, 0402 TDK, C1005X5R1C224K 3 1 C22 CAP., X7R, 220pF, 50V, 10%, 0402 MURATA, GRM155R71H221KA01D 4 2 C29, C44 CAP., X7R, 0.01F, 16V, 10%, 0603 AVX, 0603YC103KAT2A 5 2 C32, C48 CAP., X7R, 0.01F, 16V, 10%, 0402 AVX, 0402YC103KAT2A 6 1 C30 CAP., NP0, 10pF, 25V, 10%, 0402 AVX, 04023A100KAT2A 7 2 D9, D11 LED, GREEN RECT CLEAR 0603 LITE ON, LTST-C193KGKT-5A 8 3 D5, D6, D10 LED, RED RECT CLEAR 0603 LITE ON, LTST-C193KRKT-5A 9 1 D8 DIODE, ULTRA LOW SCHOTTKY RECTIFIER NXP SEMI. PMEG2005AEL,315 10 2 L3, L4 IND., 4.7H VISHAY, IHLP1616BZER4R7M11 11 2 Q1, Q6 TRANS, PNP GP 40V 200MA SC75-3 ON SEMI, MMBT3906TT1G 12 1 Q3 MOSFET, SPEED SRS 30V 30A LFPAK RENESAS, RJK0305DPB-00#J0 13 4 Q19, Q20, Q21, Q22 MOSFET, P-CH 20V 5.9A SOT-23 VISHAY, Si2365EDS-T1-GE3 14 2 Q23, Q24 MOSFET, N-CH 60V 115MA SOT23 DIODES INC., 2N7002-7-F 15 1 RF RES., CHIP, 100, 1%, 0402 VISHAY, CRCW0402100RFKED 16 2 RPG1, RPG2 RES., CHIP, 100k, 1%, 0402 VISHAY, CRCW0402100KFKED 17 2 RSD1, RSD2 RES., CHIP, 5.1M, 5%, 0402 VISHAY, CRCW04025M10JNED 18 2 R5, R25 RES., CHIP, 0, 0402 VISHAY, CRCW04020000Z0ED 19 5 R16, R24, R71, R73, R83 RES., CHIP, 0, 0603 VISHAY, CRCW06030000Z0EA 20 1 R45 SENSE RES., 0.010, 1W, 1%, 2512 PANASONIC, ERJ-M1WSF10MU 21 1 R48 SENSE RES., 0.001, 1W, 1%, 2512 PNANSONIC, ERJ-M1WTF1M0U 22 0 R29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R53, R68, R72, R74, R75, R78, R82, R90, R91, R92 (OPT) OPTIONAL 23 2 R7, R27 RES., CHIP, 2.67k, 1%, 0402 VISHAY, CRCW04022K67FKED 24 1 R9 RES., CHIP, 1.24k, 1%, 0402 VISHAY, CRCW04021K24FKED 25 13 R10, R11, R13, R14, R17, R19, R21, R28, R41, R42, R43, R44, R86 RES., CHIP, 10k, 1%, 0603 VISHAY, CRCW060310K0FKEA 22 1 R12 RES., CHIP, 64.9k, 1%, 0402 VISHAY, CRCW040264K9FKED 23 4 R57, R58, R59, R60 RES., CHIP, 1k, 1%, 0402 VISHAY, CRCW04021K00FKED 24 2 R63, R65 RES., CHIP, 121k, 1%, 0402 VISHAY, CRCW0402121KFKED 25 2 R64, R66 RES., CHIP, 887k, 1%, 0402 VISHAY, CRCW0402887KFKED 26 2 R69, R70 RES., CHIP, 10, 1%, 0603 VISHAY, CRCW060310R0FKEA 27 2 R76, R77 RES., CHIP, 4.99k, 1%, 0603 VISHAY, CRCW06034K99FKEA 28 5 R62, R67, R98, R99, R101 RES., CHIP, 0, 0402 VISHAY, CRCW04020000Z0ED VISHAY, CRCW06030000Z0EA 29 2 R61, R100 RES., CHIP, 0, 0603 30 0 R22, R46 OPTIONAL 31 0 R18 OPTIONAL 32 0 R20 OPTIONAL 33 0 C50 OPTIONAL 34 0 C54 OPTIONAL 35 0 C55 OPTIONAL dc2312afb 14 DEMO MANUAL DC2312A-A/DC2312A-B PARTS LIST DC2312A-B ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Hardware - For Demo Board Only 1 28 E1-E4, E7-E19, E21-E31 TESTPOINT, TURRET, .094" MILL-MAX, 2501-2-00-80-00-00-07-0 2 2 J1, J2 BANANA SMALL KEYSTONE, 575-4 3 4 J3, J4, J8, J9 STUD, TEST PIN PEM, KFH-032-10 4 8 J3, J4, J8, J9 ( X2 ) NUT, BRASS 10-32 ANY #10-32M/S BR PL 5 4 J3, J4, J8, J9 RING, LUG #10 KEYSTONE, 8205 6 4 J3, J4, J8, J9 WASHER, TIN PLATED BRASS ANY #10 EXT BZ TN 7 4 JP1, JP2, JP4, JP6 HEADER, 3 PIN 0.079 SINGLE ROW WURTH, 620 003 111 21 8 4 JP1, JP2, JP4, JP6 SHUNT SAMTEC, 2SN-BK-G 9 2 SW3, SW4 CONNECTOR, SUB MINIATURE SLIDE SWITCHES C&K.,JS202011CQN 10 3 J7, J10, J14 CONN., BNC PC MOUNT RECEPT. JACK, 50, TF-4 POST CONNEX, 112404 11 1 J11 HEADER 12POS 2MM STR DL PCB FCI, 98414-G06-12ULF 12 1 J12 CONN., HEADER, 2mm x 7mm, 2mm, R/A (F) SULLINS, NPPN072FJFN-RC 13 1 J13 CONN., HEADER, 2mm x 7mm, 2mm, R/A (M) MOLEX, 87760-1416 14 1 J15 HEADER, 4 PINS, SHROUDED HIROSE, DF3A-4P-2DSA dc2312afb 15 A B C D VIN VDD25 VDD25 VDD33 R39 OPT R37 OPT R35 OPT R33 OPT R31 OPT C3 330uF 16V ASEL0 PGOOD1 PGOOD0 RUN1 RUN0 FAULT1 FAULT0 ASEL1 R40 OPT 5 PHAS_CFG R38 OPT FREQ_CFG R36 OPT VOUT1_CFG R34 OPT VOUT0_CFG R32 OPT + VIN SHARE_CLK SYNC ALERTB SDA SCL + R30 OPT R44 10k 0603 R43 10k 0603 R41 10k 0603 R28 10k 0603 R21 10k 0603 R19 10k 0603 R17 10k 0603 R14 10k 0603 R13 10k 0603 R11 10k 0603 R10 10k 0603 R29 OPT E4 E3 E2 J2 J1 VDD33 VDD25 VDD33 GND GND 7V-14V VIN C4 330uF 16V 1 SYNC PGOOD1 PGOOD0 RUN1 RUN0 FAULT1 FAULT0 ALERTB SDA SCL C5 0.1uF 16V C41 OPT 30 39 21 20 19 18 17 16 23 8 27 6 15 14 13 12 11 10 9 PHAS_CFG FREQ_CFG VOUT1_CFG IAVG1 IAVG0 U2 LTC3882EUJ-1 VOUT0_CFG ASEL1 ASEL0 1uF C8 VDD25 SHARE_CLK SYNC PGOOD1 PGOOD0 RUN1 RUN0 FAULT1 FAULT0 ALERT SDA SCL C7 2.2uF VDD33 VOUT0 RUN0 FAULT0 VSENSE0- VSENSE0+ IAVG0 VFB1 COMP1 R49 OPT 2512 R101 OPT R100 OPT 0603 OPT OPT R99 OPT R98 OPT VDD33 OPT 0603 R67 R62 R61 ISENSE0- 4 VOUT1 RUN1 FAULT1 VSENSE1- VSENSE1+ PWM1 ISENSE1+ ISENSE1- VSENSE1+ VSENSE1- FB1 COMP1 TSNS1 TSNS0 COMP0 FB0 VSENSE0- VSENSE0+ COMP0 IAVG1 PWM0 VCC ISENSE0+ OPTIONAL FOR 2-PHASE OPERATION VDD33 C37 OPT IAVG1 PHAS_CFG FREQ_CFG VOUT1_CFG VOUT0_CFG ASEL1 ASEL0 SHARE_CLK IAVG0 R1 35 VSENSE0- ISNS1+ PWM1 26 P4 VDR P3 2 PGND PGND PGND GL GL ZCD# GL EN/FAULT# PWM VSENSE1+ VSENSE0+ 28 15 34 35 27 2 31 1 C52 R15 0.1uF 24.9K 28 15 34 35 27 R18 1.24K R58 1k 1 C53 R2 0.1uF 24.9K 31 R9 1.24K C35 VDR 1uF R57 1k VFB1 680pF C55 680pF VFB0 R60 1k R59 1k C2 1uF PGND PGND PGND GL GL ZCD# GL EN/FAULT# PWM 4 U1 AGND 29 32 1uF C31 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. 2. INSTALL SHUNTS AS SHOWN. 3 VIN PGND VIN U3 FDMF5820DC AGND VDR FDMF5820DC PGND NOTE: UNLESS OTHERWISE SPECIFIED VSENSE1+ ISNS1- 32 31 33 VSENSE1- COMP1 34 C50 29 10pF C54 220pF 10pF TSNS1 R20 53.6k TSNS0 C30 C21 VDR COMP0 R12 53.6k C22 220pF 28 3 2 1 40 VSENSE0+ ISNS0+ ISNS0- 38 37 36 PWM0 7 C9 1uF P2 P1 VDR C1 1uF 8 3 30 TMON E1 24 VDD33 22 VDD25 IAVG_GND 5 25 VCC 4 VINSNS GND 41 3 VCC PGND 14 3 VCC PGND 14 12 32 PGND 13 30 TMON AGND PGND 12 SW 26 SW 25 SW VDR 9 20 19 18 17 16 7 5 33 11 10 20 19 18 17 16 7 5 33 11 10 C36 L1 L2 C42 R27 2.67k 0.22uF 0.17uH FP1007R3-R17-R 100nF C34 22uF 1210 C33 22uF 1210 VIN C48 10nF TSNS1 0.22uF C20 R7 2.67k C32 10nF TSNS0 C10 22uF 1210 0.17uH FP1007R3-R17-R 100nF 0 R25 0 C11 R5 C6 22uF 1210 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE SW SW SW SW SW PHASE BOOT VIN VIN VIN SW SW SW SW SW PHASE BOOT VIN VIN VIN VIN 2 2 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 24 4 23 PGND 13 SW 24 AGND SW PVCC SW 25 29 PVCC PGND AGND 23 6 26 4 AGND 6 NC SW VIN SW 21 VIN SW 22 NC SW 9 VIN SW 8 VIN SW 22 16 21 5 C13 100uF 1206 100uF 1206 100uF 1206 100uF 1206 C39 HAORAN W. APP ENG. SCALE = NONE HZ PCB DES. APPROVALS C38 C14 100uF 1206 C40 100uF 1206 C27 470uF 2.5V C26 470uF 2.5V C19 470uF 2.5V C28 470uF 2.5V + R46 0 0603 R22 0 0603 J8 J9 J4 VOUT1- E19 GND VOUT1 ADJ. UP TO 2V MAX 35A VOUT1+ VOUT0- VOUT0+ GND VOUT0 ADJ. UP TO 2V MAX 35A E9 E8 E7 DATE 7-27-15 N/A DATE: SIZE 1 SHEET 1 DEMO CIRCUIT 2312A-A LTC3882EUJ-1 Thursday, October 29, 2015 IC NO. OF 3 REV. 2 1630 McCarthy Blvd. Milpitas, CA 95035 www.linear.com Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only 0603 J3 HAORAN W. APPROVED HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT TECHNOLOGY VSENSE1- + + + VOUT1 VSENSE0- R16 0 0603 R24 0 C18 470uF 2.5V VSENSE1+ C17 470uF 2.5V C16 470uF 2.5V C15 470uF 2.5V VSENSE0+ + + + PRODUCTION VOUT0 1 REVISION HISTORY DESCRIPTION + 2 REV TITLE: SCHEMATIC MMBT3906LT1G C43 Q6 C12 100uF 1206 C23 MMBT3906LT1G 100uF 1206 Q1 __ ECO A B C D DEMO MANUAL DC2312A-A/DC2312A-B SCHEMATIC DIAGRAM DC2312A-A dc2312afb A B C GND GND GND VCC E17 E16 E14 E12 VCC VIN 5 COUT4 0.1uF 16V 0603 + CIN3 22uF 35V 7343 CFFW1 22pF RPG1 100k R65 121k 1% R64 887k 1% U6 JP6 VCC 16 15 RSD1 5.1M 3 Vishay IHLP1616BZER4R7M11 L4 4.7uH LTC3607PGOOD1 COUT7 10uF 16V 0805 1 2 3 LTC3607EMSE OFF ON SW1 PGOOD1 MODE/SYNC 4 RF 100 CF 0.1uF 0603 5 CIN1 10uF 25V 1206 VFB1 13 VIN 14 RUN1 1 SVIN 11 SW2 PGOOD2 L3 4.7uH JP4 VDR RSD2 5.1M 1 2 3 Vishay IHLP1616BZER4R7M11 6 9 LTC3607PGOOD1 RUN2 4 PVIN1 PGND1 2 GND 17 SGND SGND 8 10 PVIN2 PGND2 7 VFB2 12 ON COUT3 10uF 16V 0805 RPG2 100k OFF 3 R63 121k 1% R66 887k 1% CFFW2 22pF GND VDR THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE E15 E13 2 PULSE IN E10 1 E11 HAORAN W. SCALE = NONE HZ PCB DES. APP ENG. APPROVALS C58 1uF 0805 GND J14 C57 1uF 0805 R45 0.01 2512 1 R53 1 1 VOUT1 VOUT0 J7 IOUT TST DATE: N/A SIZE 1 SHEET 2 DEMO CIRCUIT 2312A-A LTC3882EUJ-1 Friday, August 14, 2015 IC NO. 2 OF 3 REV. HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only VOUT1 NOTE: PULSE OUT 10mV / AMP C47 1uF 0805 J10 OPT R48 0.001 2512 TECHNOLOGY VOUT1 TITLE: SCHEMATIC VOUT0 10K 0603 R42 4 Q3 RJK0305DPB DYNAMIC LOAD CIRCUIT DO NOT EXCEED 5% DUTY CYCLE! VOUT0 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. COUT5 0.1uF 16V 0603 VDR 2 5 1 2 3 D 3 2 3 4 5 4 2 3 4 5 2 3 4 5 5 A B C D DEMO MANUAL DC2312A-A/DC2312A-B SCHEMATIC DIAGRAM DC2312A-A dc2312afb 17 A B C GND E21 4 3 2 1 SDA SCL WP VCC 24LC025-I/ST VSS A2 A1 A0 U5 TO DC1613A AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN_0 OUTEN_1 GND AUXSCL AUXSDA J11 TO DC2086A AUX3V4 SCL GND SDA J15 100nF 5 VIN 0603 2 1 R87 15.8k 0603 Q19 Si2365EDS VDD33 R86 10K 3V3 EESDA EESCL 5 EEWP 7 6 3 C45 0603 3V3 AUX3V4 8 AUXVCC 1 2 3 4 5 6 7 8 9 10 11 12 4 3 2 1 VDD33 R76 4.99K 0603 2 PGOOD0 R77 4.99K 0603 ALERTB E18 1 D11 R75 R74 3V3 E22 ALERTB 4 FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V SCL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2N7002A Q24 PG O O D 0 GREEN R94 200 0603 OPT OPT PGOOD1 J13DEMO HEADER (M) SDA E23 SDA 1 D9 E24 SCL 3V3 2N7002A Q23 GREEN PG O O D 1 R93 200 0603 VIN SHARE_CLK SYNC R92 OPT R78 OPT FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V 1 5 ON SW3 RUN1 OFF D7 OPT C NC FAULT0-FAULT1 3 JP1 R90 OPT 2 R91 OPT C29 10nF 0603 R69 10 0603 1 OFF 5 ON SW4 RUN0 C NC RUN0-RUN1 3 JP2 D4 OPT 2 2 C44 10nF 0603 R70 10 0603 1 E31 E30 E29 E28 E27 FAULT1 SGND RUN1 RUN1 RUN0 RUN0 FAULT0 FAULT0 FAULT1 ALERTB 1 D10 3V3 FAULT0 HAORAN W. APP ENG. 2 SCALE = NONE HZ PCB DES. APPROVALS R84 127 0603 ALERTB RED Si2365EDS Q20 D5 R81 127 0603 FAULT1 R80 127 0603 FA U LT 1 RED www.linear.com DATE: N/A SIZE 1 SHEET 3 DEMO CIRCUIT 2312A-A LTC3882EUJ-1 Friday, August 14, 2015 IC NO. OF 3 REV. 2 LTC Confidential-For Customer Use Only Fax: (408)434-0507 D6 Si2365EDS Q22 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 1 3V3 HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT TECHNOLOGY FA U LT 0 RED Si2365EDS Q21 TITLE: SCHEMATIC 1 3V3 PSM STACKING CONNECTORS: J12, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC J13, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 OPT J12 DEMO HEADER (F) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R72 0603 R71 0 0603 R73 0 CUSTOMER NOTICE R82 OPT 1206 R83 0 0603 E26 E25 R68 OPT LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. VIN 3V3 SYNC SHARE_CLK 2 3 D8 2 2 ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN 3 4 1 6 3 D 1 2 3 AUX3V4 3 2 4 1 6 3 4 3 2 2 18 3 5 A B C D DEMO MANUAL DC2312A-A/DC2312A-B SCHEMATIC DIAGRAM DC2312A-A dc2312afb A B C D VIN VDD25 VDD25 VDD33 R39 OPT R37 OPT R35 OPT R33 OPT R31 OPT C3 330uF 16V ASEL0 PGOOD1 PGOOD0 RUN1 RUN0 FAULT1 FAULT0 ASEL1 R40 OPT 5 PHAS_CFG R38 OPT FREQ_CFG R36 OPT VOUT1_CFG R34 OPT VOUT0_CFG R32 OPT + VIN SHARE_CLK SYNC ALERTB SDA SCL + R30 OPT R44 10k 0603 R43 10k 0603 R41 10k 0603 R28 10k 0603 R21 10k 0603 R19 10k 0603 R17 10k 0603 R14 10k 0603 R13 10k 0603 R11 10k 0603 R10 10k 0603 R29 OPT E4 E3 E2 J2 VDD33 VDD25 VDD33 GND GND 7V-14V J1 C4 330uF 16V 1 SYNC PGOOD1 PGOOD0 RUN1 RUN0 FAULT1 FAULT0 ALERTB SDA SCL C5 0.1uF 16V C41 22pF 30 39 21 20 19 18 17 16 23 8 27 6 15 14 13 12 11 10 9 PHAS_CFG FREQ_CFG VOUT1_CFG IAVG1 IAVG0 U2 LTC3882EUJ-1 VOUT0_CFG ASEL1 ASEL0 1uF C8 VDD25 SHARE_CLK SYNC PGOOD1 PGOOD0 RUN1 RUN0 FAULT1 FAULT0 ALERT SDA SCL C7 2.2uF VDD33 VOUT0 RUN0 FAULT0 VSENSE0- VSENSE0+ IAVG0 VFB1 COMP1 R49 0 R101 0 R100 0 0 0 R99 0 R98 0 0 R67 R62 R61 0603 2512 0603 VDD33 ISENSE0- 4 VOUT1 RUN1 FAULT1 VSENSE1- VSENSE1+ PWM1 ISENSE1+ ISENSE1- VSENSE1+ VSENSE1- FB1 COMP1 TSNS1 TSNS0 COMP0 FB0 VSENSE0- VSENSE0+ COMP0 IAVG1 PWM0 VCC ISENSE0+ OPTIONAL FOR 2-PHASE OPERATION VDD33 C37 22pF IAVG1 PHAS_CFG FREQ_CFG VOUT1_CFG VOUT0_CFG ASEL1 ASEL0 SHARE_CLK IAVG0 R1 22 VIN 24 VDD33 25 VCC 4 VINSNS E1 4 35 VSENSE0- ISNS1+ PWM1 26 P4 VDR C35 VDR 1uF OPT 1.24k R9 R18 R58 1k R57 1k VFB1 OPT P3 C55 470pF VFB0 R60 1k R59 1k C2 1uF PGND PGND PGND GL GL ZCD# GL EN/FAULT# PWM VSENSE1+ VSENSE0+ 28 15 34 35 27 2 31 1 C52 R15 0.1uF 24.9K 28 15 34 35 27 2 31 1 C53 R2 0.1uF 24.9K PGND PGND PGND GL GL ZCD# GL EN/FAULT# PWM C1 1uF U1 AGND 29 32 1uF C31 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. 2. INSTALL SHUNTS AS SHOWN. 3 VIN PGND VIN U3 FDMF5820DC AGND VDR FDMF5820DC PGND NOTE: UNLESS OTHERWISE SPECIFIED VSENSE1+ ISNS1- 32 31 33 VSENSE1- COMP1 34 C50 29 OPT C54 OPT 10pF TSNS1 R20 OPT TSNS0 C30 C21 VDR COMP0 R12 64.9K C22 220pF 28 3 2 1 40 VSENSE0+ ISNS0+ ISNS0- 38 37 36 PWM0 7 C9 1uF P2 P1 VDR 4 3 13 30 VDD25 IAVG_GND 5 14 3 14 GND 3 VCC PGND VCC PGND 41 30 TMON PGND TMON 13 PGND 12 SW 25 SW VDR 9 20 19 18 17 16 7 5 33 11 10 20 19 18 17 16 7 5 33 11 10 C36 L1 L2 C42 R27 2.67k 0.22uF 0.17uH FP1007R3-R17-R 100nF C34 22uF 1210 C33 22uF 1210 VIN C48 10nF TSNS1 0.22uF C20 R7 2.67k C32 10nF TSNS0 C10 22uF 1210 0.17uH FP1007R3-R17-R 100nF 0 R25 0 C11 R5 C6 22uF 1210 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE SW SW SW SW SW PHASE BOOT VIN VIN VIN SW SW SW SW SW PHASE BOOT VIN VIN VIN VIN 2 2 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 24 PGND AGND PGND 12 32 AGND SW 24 AGND SW PVCC SW 25 29 PVCC 26 4 AGND 6 NC SW 23 6 NC SW 23 SW 26 8 VIN SW VIN SW 21 9 VIN 22 8 VIN SW 22 SW 21 5 C13 100uF 1206 100uF 1206 100uF 1206 100uF 1206 C39 HAORAN W. APP ENG. SCALE = NONE HZ PCB DES. APPROVALS C38 C14 100uF 1206 C40 100uF 1206 C27 470uF 2.5V C26 470uF 2.5V C19 470uF 2.5V C28 470uF 2.5V + R46 OPT 0603 R22 OPT 0603 J8 J9 J4 VOUT1- E19 GND VOUT1 ADJ. UP TO 2V MAX 35A VOUT1+ VOUT0- VOUT0+ GND VOUT0 ADJ. UP TO 2V MAX 35A E9 E8 E7 DATE 7-27-15 DATE: N/A SIZE 1 SHEET 1 DEMO CIRCUIT 2312A-B LTC3882EUJ-1 Thursday, October 29, 2015 IC NO. OF 3 REV. 2 1630 McCarthy Blvd. Milpitas, CA 95035 www.linear.com Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only 0603 J3 HAORAN W. APPROVED HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT TECHNOLOGY VSENSE1- + + + VOUT1 VSENSE0- R16 0 0603 R24 0 C18 470uF 2.5V VSENSE1+ C17 470uF 2.5V C16 470uF 2.5V C15 470uF 2.5V VSENSE0+ + + + PRODUCTION VOUT0 1 REVISION HISTORY DESCRIPTION + 2 REV TITLE: SCHEMATIC MMBT3906LT1G C43 Q6 C12 100uF 1206 C23 MMBT3906LT1G 100uF 1206 Q1 __ ECO A B C D DEMO MANUAL DC2312A-A/DC2312A-B SCHEMATIC DIAGRAM DC2312A-B dc2312afb 19 A B C GND GND GND VCC E17 E16 E14 E12 VCC 5 COUT4 0.1uF 16V 0603 + CIN3 22uF 35V 7343 VIN CFFW1 22pF RPG1 100k R65 121k 1% R64 887k 1% ON U6 JP6 VCC 16 15 RSD1 5.1M 3 Vishay IHLP1616BZER4R7M11 L4 4.7uH LTC3607PGOOD1 COUT7 10uF 16V 0805 1 2 3 LTC3607EMSE OFF SW1 PGOOD1 MODE/SYNC 4 RF 100 CF 0.1uF 0603 5 CIN1 10uF 25V 1206 VFB1 13 VIN 14 RUN1 1 SVIN 11 SW2 PGOOD2 L3 4.7uH JP4 VDR RSD2 5.1M 1 2 3 Vishay IHLP1616BZER4R7M11 6 9 LTC3607PGOOD1 RUN2 4 PVIN1 PGND1 2 GND 17 SGND SGND 8 10 PVIN2 PGND2 7 VFB2 12 D ON COUT3 10uF 16V 0805 RPG2 100k OFF 3 3 R63 121k 1% R66 887k 1% CFFW2 22pF GND VDR THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. CUSTOMER NOTICE E15 E13 2 PULSE IN E10 1 E11 HAORAN W. SCALE = NONE HZ PCB DES. APP ENG. APPROVALS C58 1uF 0805 GND J14 C57 1uF 0805 R45 0.01 2512 1 R53 1 1 VOUT1 VOUT0 J7 IOUT TST DATE: N/A SIZE 1 SHEET 2 DEMO CIRCUIT 2312A-B LTC3882EUJ-1 Monday, August 10, 2015 IC NO. 2 OF 3 REV. HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only VOUT1 NOTE: PULSE OUT 10mV / AMP C47 1uF 0805 J10 OPT R48 0.001 2512 TECHNOLOGY VOUT1 TITLE: SCHEMATIC VOUT0 10K 0603 R42 4 Q3 RJK0305DPB DYNAMIC LOAD CIRCUIT DO NOT EXCEED 5% DUTY CYCLE! VOUT0 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. COUT5 0.1uF 16V 0603 VDR 2 2 3 4 5 5 1 2 3 4 2 3 4 5 20 2 3 4 5 5 A B C D DEMO MANUAL DC2312A-A/DC2312A-B SCHEMATIC DIAGRAM DC2312A-B dc2312afb Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. A B C GND E21 4 3 2 1 SDA SCL WP VCC 24LC025-I/ST VSS A2 A1 A0 U5 TO DC1613A AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN_0 OUTEN_1 GND AUXSCL AUXSDA J11 TO DC2086A AUX3V4 SCL GND SDA J15 100nF 5 VIN 0603 2 1 R87 15.8k 0603 Q19 Si2365EDS VDD33 R86 10K 3V3 EESDA EESCL 5 EEWP 7 6 3 C45 0603 3V3 AUX3V4 8 AUXVCC 1 2 3 4 5 6 7 8 9 10 11 12 4 3 2 1 VDD33 R76 4.99K 0603 2 PGOOD0 R77 4.99K 0603 ALERTB E18 1 D11 R75 R74 3V3 E22 ALERTB 4 FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V SCL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2N7002A Q24 PG O O D 0 GREEN R94 200 0603 OPT OPT PGOOD1 J13DEMO HEADER (M) SDA E23 SDA 1 D9 E24 SCL 3V3 2N7002A Q23 GREEN PG O O D 1 R93 200 0603 VIN SHARE_CLK SYNC R92 OPT R78 OPT FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V 1 5 ON SW3 RUN1 OFF D7 OPT C NC FAULT0-FAULT1 3 JP1 R90 OPT 2 R91 OPT C29 10nF 0603 R69 10 0603 1 OFF 5 ON SW4 RUN0 C NC RUN0-RUN1 3 JP2 D4 OPT 2 2 C44 10nF 0603 R70 10 0603 1 E31 E30 E29 E28 E27 FAULT1 SGND RUN1 RUN1 RUN0 RUN0 FAULT0 FAULT0 FAULT1 ALERTB 1 D10 3V3 FAULT0 HAORAN W. APP ENG. 2 SCALE = NONE HZ PCB DES. APPROVALS R84 127 0603 ALERTB RED Si2365EDS Q20 D5 R81 127 0603 FAULT1 R80 127 0603 FA U LT 1 RED www.linear.com DATE: N/A SIZE 1 SHEET 3 DEMO CIRCUIT 2312A-B LTC3882EUJ-1 Monday, August 10, 2015 IC NO. OF 3 REV. 2 LTC Confidential-For Customer Use Only Fax: (408)434-0507 D6 Si2365EDS Q22 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 1 3V3 HIGH EFFICIENCY DC/DC CONVERTER WITH POWER SYSTEM MANAGEMENT TECHNOLOGY FA U LT 0 RED Si2365EDS Q21 TITLE: SCHEMATIC 1 3V3 PSM STACKING CONNECTORS: J12, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC J13, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 OPT J12 DEMO HEADER (F) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R72 0603 R71 0 0603 R73 0 CUSTOMER NOTICE R82 OPT 1206 R83 0 0603 E26 E25 R68 OPT LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. VIN 3V3 SYNC SHARE_CLK 2 3 D8 2 2 ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN 3 4 1 6 3 D 1 2 3 AUX3V4 3 2 4 1 6 3 4 3 2 2 3 5 A B C D DEMO MANUAL DC2312A-A/DC2312A-B SCHEMATIC DIAGRAM DC2312A-B dc2312afb 21 DEMO MANUAL DC2312A-A/DC2312A-B DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application engineer. Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright (c) 2004, Linear Technology Corporation dc2312afb 22 Linear Technology Corporation LT 0116 REV B * PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 www.linear.com LINEAR TECHNOLOGY CORPORATION 2015