Standard Products VRG8657/VRG8658 Low Drop Out(LDO)Adjustable Voltage Regulators Dual Positive Radiation Tolerant www.aeroflex.com/voltreg June 21, 2010 FEATURES Manufactured using Linear Technology Corporation (R) Space Qualified RH1086 die Radiation performance - Total dose > 100 krad (Si) Packaging - Hermetic metal - Thru-hole or Surface mount Two-Independent voltage regulators - 6 Leads, .42"L x .65"W x .200"Ht Thermal shutdown - Power package Output voltage adjustable: 1.25V to 23V - Weight - 5 gm max Dropout voltage: 1.3V at 1.0Amp Designed for aerospace and high reliability space 3-Terminal applications Output current: 1.0A (See Note 1 Pg 2) Available on DSCC SMD: 5962-09201 Voltage reference: 1.25V +2%, -3.2% Load regulation: 0.3% max Line regulation: 0.25% max Ripple rejection: >60dB DESCRIPTION The Aeroflex Plainview VRG8657/8658 consists of two Positive Adjustable (RH1086) LDO voltage regulators each capable of supplying 1.0Amps over the output voltage range as defined under recommended operating conditions. The VRG8657/8658 offers excellent line and load regulation specifications and ripple rejection. There is full electrical isolation between the regulators and each regulator to the package. Dropout (VIN - VOUT) decreases at lower load currents for both regulators. The VRG8657/8658 serves a wide variety of applications including SCSI-2 Active Terminator, High Efficiency Linear Regulators, Post Regulators for Switching Supplies, Constant Current Regulators, Battery Chargers and Microprocessor Supply. The VRG8657/8658 has been specifically designed to meet exposure to radiation environments. The VRG8657 is configured for a Thru-Hole 6 lead metal power package and the VRG8658 is configured for a Surface Mount 6 lead metal power package. It is guaranteed operational from -55C to +125C. Available screened to MIL-STD-883, the VRG8657/8658 is ideal for demanding military and space applications. For detailed performance characteristic curves, applications information and typical applications see the latest Linear Technology Corporation (R) data sheets for their RH/LT1086, which is available on-line at www.linear.com. 1 4 ADJ 2 ADJ VOUT VOUT RH1086 Positive Regulator RH1086 Positive Regulator VIN VIN 3 5 FIGURE 1 - BLOCK DIAGRAM / SCHEMATIC SCD8657 Rev G 6 ABSOLUTE MAXIMUM RATINGS PARAMETER RANGE UNITS 25+VREF VDC Lead temperature (soldering 10 Sec) 300 C Input Output Differential 25 VDC Output Voltage +25 VDC DC Output Current 1.5 A ESD (MIL-STD-883, M3015, Class 3A) >4000 V Operating Junction Temperature Range -55 to +150 C Storage Temperature Range -65 to +150 C Input Voltage NOTICE: Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. These are stress rating only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation Conditions" may effect device reliability. RECOMMENDED OPERATING CONDITIONS PARAMETER RANGE UNITS Output Voltage Range 1.275 to 23 VDC 1.5 to 25 VDC -55 to +125 C 5 C/W Input Output Differential 3/ Case Operating Temperature Range Thermal Resistance, Junction to case JC ELECTRICAL PERFORMANCE CHARACTERISTICS Unless otherwise specified, -55C<TC<+125C PARAMETER SYM Reference Voltage 2/ 3/ VREF CONDITIONS (P PMAX 1.5V < VIN - VOUT < 15V, 10mA < IOUT < 1.0A MIN MAX UNITS 1.210 1.275 V Line Regulation 2/ 3/ VOUT ILOAD = 10mA, 1.5V < VIN - VOUT < 15V VIN - 0.25 % Load Regulation 2/ 3/ VOUT IOUT 10mA < IOUT < 1.0A, VIN - VOUT = 3V - 0.3 % Dropout Voltage 2/ 4/ VDROP VREF = 1%, IOUT = 1.0A - 1.30 V Adjust Pin Current 2/ - - 120 A Adjust Pin Current Change 2/ - - 5 A 10 mA < IOUT < 1A, 1.5V < VIN - VOUT < 15V Current Limit 2/ 6/ IMAX VIN - VOUT = 5V VIN - VOUT < 25V 1.5 0.047 - A A Minimum Load Current 5/ IMIN VIN - VOUT = 25V - 10 mA 60 - dB Ripple Rejection 3/ - IOUT = 1.0A, VIN - VOUT = 3V, f = 120Hz, CADJ = COUT = 25F Thermal Regulation - 30ms pulse, TC = +25C - 0.04 %/W VREF Long-Term Stability 5/ - Burn In: TC = +125C @ 1000hrs minimum, tested @ 25C - 0.3 % Notes: 1/ For Compliance with MIL-STD-883 Rev. C current density specification, the RH1086MK is derated to 1.0 Amp but is capable of 1.5Amps. 2/ Specification derated to reflect Total Dose exposure to 100Krad (Si) @ +25C. 3/ Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input/output voltage range. 4/ Dropout voltage is specified over the full output current range of the device. 5/ Not tested. Shall be guaranteed by design, characterization, or correlation to other tested parameters. 6/ Pulsed @ <10% duty cycle @ +25C (See Note 1). SCD8657 Rev G 6/21/10 2 Aeroflex Plainview 60 50 40 Maximum Power Dissipation (Watts) 30 Both Regulators 20 1 Regulator 10 0 0 20 40 60 80 100 120 140 Case Temperature (C) FIGURE 2 - MAXIMUM POWER vs CASE TEMPERATURE The maximum Power dissipation is limited by the thermal shutdown function of each regulator chip in the VG8657/8658. The graph above represents the achievable power before the chip shuts down. The first line in the graph represents the maximum power dissipation of the VG8657/8658 with one regulator on (the other off) and the other line represents both regulators on dissipating equal power. If both regulators are on and one regulator is dissipating more power that the other, the maximum power dissipation of the VG8657/8658 will fall between the two lines. This graph is based on the maximum junction temperature of 150C and a thermal resistance (JC) of 5C/W. SCD8657 Rev G 6/21/10 3 Aeroflex Plainview MINIMUM INPUT/OUTPUT DIFFERENTIAL (V) See Note 1, pg 2. 2 1 TJ = - 55C TJ = 25C TJ = 150C See pg2. 3. See Note Note13, 1, pg 0 1 0.5 OUTPUT CURRENT (A) 0 FIGURE 3 - RH1086 SHORT CIRCUIT CURRENT FIGURE 4 - RH1086 DROPOUT VOLTAGE TYPICAL CURVE VRG8657/58 VIN 1.5 Vout 10F Tant. VREF R1 10F Tant. ADJ VREF = 1.25V, IADJ = 50A +Reg = VOUT = VREF (1+R2/R1) + (IADJ x R2) R2 FIGURE 5 - BASIC RH1086 ADJUSTABLE REGULATOR APPLICATION SCD8657 Rev G 6/21/10 4 Aeroflex Plainview TABLE I - PIN NUMBERS vs FUNCTION PIN FUNCTION 1 POS_ADJ_1 2 POS_VOUT_1 3 POS_VIN_1 4 POS_ADJ_2 5 POS_VIN_2 6 POS_VOUT_2 .200 .100 .108 .123 o .010 M CBA .150 REF. o.145 THRU 2x .028 MAX. 6 5 2 MAX. TYP. 4 .720 .020 MEASURED LEAD TIP .415 .2075 -C- 1 2 3 ESD/PIN 1 IDENT .230 MIN .415 SQ R.065 TYP. 4 PLCS .655 -B- .122 .003 o .010 BCA .220 MAX. .005 -A- .040 Notes: 1. Dimension Tolerance: .005 inches 2. Package contains BeO substrate 3. Case electrically isolated .030 DIA. .002 o .010 M CBA FIGURE 6 - PACKAGE OUTLINE -- THRU-HOLE POWER PACKAGE SCD8657 Rev G 6/21/10 5 Aeroflex Plainview TABLE II - PIN NUMBERS vs FUNCTION PIN FUNCTION 1 POS_ADJ_1 2 POS_VOUT_1 3 POS_VIN_1 4 POS_ADJ_2 5 POS_VIN_2 6 POS_VOUT_2 .200 .100 .108 .123 o .010 .150 REF. CBA o.145 THRU 2x .028 MAX. M 6 5 .060 4 .415 .886 .020 .2075 -C- 1 2 3 ESD/PIN 1 IDENT .415 SQ R.065 TYP. 4 PLCS .655 -B- .122 .003 o .010 BCA .220 MAX. .005 -A- .020 .040 .030 DIA. .002 o .010 M CBA Notes: 1. Dimension Tolerance: .005 inches 2. Package contains BeO substrate 3. Case electrically isolated FIGURE 7 - PACKAGE OUTLINE -- SURFACE MOUNT POWER PACKAGE SCD8657 Rev G 6/21/10 6 Aeroflex Plainview ORDERING INFORMATION MODEL DSCC SMD # SCREENING Military Temperature, -55C to +125C Screened in accordance with MIL-PRF-38534, Class K. VRG8657-S VRG8657-7 PACKAGE 6 Lead Thru-Hole Power Pkg Commercial Flow, +25C testing only - VRG8658-S Military Temperature, -55C to +125C Screened in accordance with MIL-PRF-38534, Class K VRG8658-7 Commercial Flow, +25C testing only VRG8657-201-1S VRG8657-201-2S 5962-0920102KXC 5962-0920102KXA VRG8658-201-1S VRG8658-201-2S 5962-0920102KYC 5962-0920102KYA 6 Lead Surface Mount Power Pkg 6 Lead Thru-Hole Power Pkg In accordance with DSCC SMD 6 Lead Surface Mount Power Pkg EXPORT CONTROL: EXPORT WARNING: This product is controlled for export under the International Traffic in Arms Regulations (ITAR). A license from the U.S. Department of State is required prior to the export of this product from the United States. Aeroflex's military and space products are controlled for export under the International Traffic in Arms Regulations (ITAR) and may not be sold or proposed or offered for sale to certain countries. (See ITAR 126.1 for complete information.) PLAINVIEW, NEW YORK Toll Free: 800-THE-1553 Fax: 516-694-6715 INTERNATIONAL Tel: 805-778-9229 Fax: 805-778-1980 NORTHEAST Tel: 603-888-3975 Fax: 603-888-4585 SE AND MID-ATLANTIC Tel: 321-951-4164 Fax: 321-951-4254 WEST COAST Tel: 949-362-2260 Fax: 949-362-2266 CENTRAL Tel: 719-594-8017 Fax: 719-594-8468 www.aeroflex.com info-ams@aeroflex.com Aeroflex Microelectronic Solutions reserves the right to change at any time without notice the specifications, design, function, or form of its products described herein. All parameters must be validated for each customer's application by engineering. No liability is assumed as a result of use of this product. No patent licenses are implied. Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused and the Linear Technology logo are registered trademarks and RH1086 are a copyright of Linear Technology Corporation. SCD8657 Rev G 6/21/10 7