RN5RK SERIES VFM STEP-UP DC/DC CONVERTER NO.EA-045-0602 OUTLINE The RN5RKxx1A/xx1B/xx2A Series are CMOS-based VFM (Chopper) Step-up DC/DC converter ICs with ultra low supply current and high output voltage accuracy. Each of the RN5RKxx1A/xx1B consists of an oscillator, a VFM control circuit, a driver transistor to have low ON resistance (Lx switch), a reference voltage unit, a high speed comparator, resistors for voltage detection, an Lx switch protection circuit and an internal chip enable circuit. A low ripple, high efficiency step-up DC/DC converter can be composed of this RN5RKxx1A/xx1B with only three external components: an inductor, a diode and a capacitor. The RN5RKxx2A uses the same chip as what is employed in the RN5RKxx1A/1B IC and has a drive pin (EXT) for an external transistor instead of an Lx pin. As it is possible to load a large output current with a power transistor which has a low saturation voltage, RN5RKxx2A IC is recommendable to users who need an output current as large as between several tens mA and several hundreds mA. Using the chip enable function, it is possible to make the supply current on standby minimized. Since the package for these ICs is SOT-23-5 (Mini-mold), high density mounting of the ICs on board is possible. FEATURES * Small Number of External Components .............................. Only an inductor, a diode and a capacitor (RN5RKxx1A/xx1B) * Standby Current ................................................................... Typ. 0A * High Output Voltage Accuracy ............................................. 2.5% * Low Ripple and Low Noise * Low Start-up Voltage............................................................ Max.0.9V * High Efficiency ..................................................................... Typ. 80% * Including a Driver Transistor with Low ON Resistance........ Only RN5RKxx1A/xx1B * Two Kinds of Duty Ratio....................................................... 77% (xx1A, xx2A)/ 55% (xx1B) * Output Voltage Range.......................................................... 2.0V to 5.5V * Low Temperature-Drift Coefficient of Output Voltage........... Typ. 100ppm/C * Small Packages ................................................................. SOT-23-5 (Mini-Mold) APPLICATIONS * Power source for battery-powered equipment. * Power source for cameras, camcorders, VCRs, and hand-held communication equipment. * Power source for those appliances which require higher cell voltage than that of batteries. 1 RN5RK OUTLINE DIAGRAM RN5RKxx1x Vref Lx 5 VLX limiter RN5RKxx2A 2 VOUT Buffer LxSW Vref EXT 5 2 VOUT Buffer VFM Control VFM Control OSC 100kHz OSC 100kHz Error Amp. Error Amp. Chip Enable Chip Enable 4 GND 1 4 GND 1 CE CE SELECTION GUIDE The output voltage, the driver type, the duty cycle and the taping type for the ICs can be selected at the user's request. The selection can be made by designating the part number as shown below: RN5RKxxxx-xx Part Number a bc d Code a b c d 2 Contents Setting Output Voltage (VOUT) : Stepwise setting with a step of 0.1V in the range of 2.0V to 5.5V is possible. Designation of Driver 1: Internal Lx Tr. Driver 2: External Tr. Driver Designation of Duty Cycle A: 77% B: 55% Designation of Taping type Ex. TR, TL (refer to Taping Specifications, TR type is prescribed as a standard.) RN5RK PIN CONFIGURATIONS * SOT-23-5 5 4 (mark side) 1 2 3 PIN DISCRIPTION * * RN5RKxx1x Pin No. Symbol 1 CE 2 Description RN5RKxx2x Pin No. Symbol Description Chip Enable Pin 1 CE Chip Enable Pin VOUT Step-up Output Monitoring Pin, Power Supply (for device itself) 2 VOUT Step-up Output Monitoring Pin, Power Supply (for device itself) 3 NC No Connection 3 NC No Connection 4 GND Ground Pin 4 GND Ground Pin 5 LX Switching Pin (Nch Open Drain) 5 EXT External Tr. Drive Pin (CMOS Output) ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VOUT Step-up Output Pin Voltage 9.0 V VLX LX Pin Voltage 9.0 V VEXT EXT Pin Voltage -0.3 to VOUT+0.3 V VCE CE Pin Voltage -0.3 to VOUT+0.3 V ILX Lx Pin Output Current 500 mA IEXT EXT Pin Output Current 30 mA 1 PD Power Dissipation (SOT-23-5)* 420 mW Topt Operating Temperature Range -40 to +85 C Tstg Storage Temperature Range -55 to +125 C *1)For Power Dissipation, please refer to PACKAGE INFORMATION to be described. ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits. 3 RN5RK ELECTRICAL CHARACTERISTICS * RN5RKxx1A/xx1B Topt=25C Symbol VOUT VIN Conditions VIN=Set VOUTx0.6, IOUT=1mA Output Voltage Min. Typ. x0.975 Input Voltage Max. Unit x1.025 V 8.0 V VOUT/ Topt Output Voltage Temperature Coefficient -40C Vstart Start-Up Voltage VIN=0V2V*1 0.75 Vstart/ Topt Start-Up Voltage Temperature Coefficient -40C < = Topt < = 85C 1 VIN=0V2V* -1.6 Vhold Hold-on Voltage (xx1A) VIN=2V0V*1 0.7 V Hold-on Voltage (xx1B) VIN=2V0V* 1 0.9 V Supply Current2 VOUT=VCE=Set VOUT+0.5V Supply Current (Standby) VOUT=6V, VCE=0V ILXleak Lx Leakage Current VOUT=VLX=8V fosc Maximum Oscillator Frequency VOUT=VCE=Set VOUTx0.96 Frequency Temperature Coefficient -40C Vhold IDD2 Istandby fosc/ Topt Duty < = < = < = Topt Topt < = 2 80 85C Oscillator Duty Cycle (xx1A) VOUT=VCE=Set VOUTx0.96, Oscillator Duty Cycle (xx1B) ON (VLX "L" side) 0.5 A 1 A 120 kHz kHz/ C 47 55 63 % 0.6 0.8 V 0.9 VCEL CE "L" Input Voltage ICEH CE "H" Input Current VOUT=6.0V, VCE=6.0V -0.5 ICEL CE "L" Input Current VOUT=6.0V, VCE=0.0V -0.5 Supply Current1 * A % VOUT=VCE=Set VOUTx0.96, Judgment is made by the Lx waveform IDD1 5 85 CE "H" Input Voltage 2 mV/ C 77 VCEH 2.5V V 70 0.4 2.0V 100 0.90 0.41 VOUT=VCE=1.95, Lx Switch ON < = ppm /C 100 85C VLX Voltage Limit Vlxlim 4 Item V 0.3 V 0.0 0.5 A 0.0 0.5 A A VOUT < = 2.4V 25 50 < = VOUT < = 2.9V 30 55 3.0V < = VOUT < = 3.4V 35 60 3.5V < = VOUT < = 3.9V 40 65 4.0V < = VOUT < = 4.4V 45 75 4.5V < = VOUT < = 4.9V 50 80 5.0V < = VOUT < = 5.5V 60 90 A RN5RK Symbol ILX Item Lx Switching Current Conditions Min. 2.0V < = VOUT < = 2.4V, VLX=0.4V 80 2.5V < = VOUT < = 2.9V, VLX=0.4V 100 3.0V < = VOUT < = 3.4V, VLX=0.4V 120 3.5V < = VOUT < = 3.9V, VLX=0.4V 140 4.0V < = VOUT < = 4.4V, VLX=0.4V 160 4.5V < = VOUT < = 4.9V, VLX=0.4V 180 5.0V < = VOUT < = 5.5V, VLX=0.4V 200 Typ. Max. Unit mA *1)Condition: An Output load resistor RL is connected between VOUT and GND. Note that the resistor RL has a resistance which makes an output current 1mA after step-up operation. *2)The Supply Current 1 (IDD1) for IC itself is measured when the internal oscillator works continuously. If the oscillator works intermittently, the supply current becomes smaller than the value which is written on the above table. Measurement condition: VOUT=VCE=Setting Output Voltagex0.96 5 RN5RK * RN5RKxx2A Topt=25C Symbol VOUT VIN Item Output Voltage Conditions VIN=Set VOUTx0.6, IOUT=1mA Output Voltage Temperature Coefficient -40C Vstart Start-Up Voltage VIN=0V2V*1 < = < = Topt < = Supply Current2 VOUT=VCE=Set VOUT+0.5V Supply Current (Standby) VOUT=6V, VCE=0V Maximum Oscillator Frequency VOUT=VCE=Set VOUTx0.96 Frequency Temperature Coefficient -40C Duty Oscillator Duty Cycle VOUT=VCE=Set VOUTx0.96, ON (VLX "H" side) VCEH CE "H" Input Voltage VCEL CE "L" Input Voltage VOUT=VCE=Set VOUTx0.96, Judgment is made by the EXT waveform ICEH CE "H" Input Current VOUT=6.0V, VCE=6.0V ICEL CE "L" Input Current VOUT=6.0V, VCE=0.0V fosc fosc/ Topt IDD1 Supply Current1 *2 EXT "H" Output Current IEXTH EXT "L" Output Current < = Topt < = 85C Max. Unit x1.025 V 8.0 V ppm /C 100 0.7 < = -40C Topt VIN=0V2V*1 Istandby x0.975 85C Start-Up Voltage Temperature Coefficient IDD2 Typ. Input Voltage VOUT/ Topt Vstart/ Topt Min. 0.8 mV/ C -1.6 2 80 85C 100 5 A 0.5 A 120 kHz kHz/ C 0.41 70 V 77 85 % 0.3 V 0.7 0.8 V -0.5 0.0 0.5 A -0.5 0.0 0.5 A A 2.0V < = VOUT < = 2.9V,EXT no load 20 40 3.0V < = VOUT < = 3.9V,EXT no load 25 50 3.0V < = VOUT < = 3.4V,EXT no load 30 60 3.5V < = VOUT < = 3.9V,EXT no load 35 70 2.0V < = VOUT < = 2.4V, VEXT=0.4V -1.0 2.5V < = VOUT < = 2.9V, VEXT=0.4V -1.5 4.0V < = VOUT < = 5.5V, VEXT=0.4V -2.0 2.0V < = VOUT < = 2.9V, VEXT=0.4V 1.0 3.0V < = VOUT < = 3.9V, VEXT=0.4V 1.5 4.0V < = VOUT < = 5.5V, VEXT=0.4V 2.0 A mA *1)Condition: An Output load resistor RL is connected between VOUT and GND. Note that the resistor RL has a resistance which makes an output current 1mA after step-up operation. *2)The Supply Current 1 (IDD1) for IC itself is measured when the internal oscillator works continuously. If the oscillator works intermittently, the supply current becomes smaller than the value which is written on the above table. Measurement condition: VOUT=VCE=Setting Output Voltagex0.96 6 RN5RK TEST CIRCUITS SBD L 1k Lx VOUT Lx VOUT V RL VIN A CL GND CE GND Test Circuit 1 Lx CE CL Test Circuit 2 VOUT GND CE CL Oscilloscope Test Circuit 3 *)When VLXlim and ILX are measured, the 5 resistor is used. Otherwise 1k is used. Components Inductor Diode Capacitor (L) : 100H, 220H (Sumida Electric Co., Ltd; CD-54) (SBD) : MA721 (Matsushita Electronics Corporation; Schottky Type) (CL) : 47F (Tantalum Type) Using these test circuits characteristics data has been obtained as shown on the following pages. Test Circuit 1: Typical Characteristics (1)-(7) Test Circuit 2: Typical Characteristics (9)-(11) Test Circuit 3: Typical Characteristics (8), (12)-(16) 7 RN5RK SBD L Tr Rb EXT VOUT EXT VOUT V VIN A CL Cb GND CE CE GND Test Circuit 1 CL Test Circuit 2 100 EXT EXT VOUT GND CE VOUT Oscilloscope GND CE CL Oscilloscope Test Circuit 3 Components Inductor Diode Capacitor Transistor Base Resistor (L) (SBD) (CL) (Tr) (Rb) Test Circuit 4 : 27H (Sumida Electric Co., Ltd; CD-104) : RB111C (Rohm Co., Ltd; Schottky Type) : 47Fx2(Tantalum Type) : 2SD1628G : 300W Base Capacitor (Cb): 0.01F The typical characteristics were obtained with using these test circuits. Test Circuit 1: Typical Characteristics (1)-(5) Test Circuit 2: Typical Characteristics (8)-(10) Test Circuit 3: Typical Characteristics (11)-(14) Test Circuit 4: Typical Characteristics (6), (7) 8 CL RN5RK TYPICAL CHARACTERISTICS RN5RKxx1A/B Output Voltage vs. Output Current (Topt=25C) RN5RK301A RN5RK301A L=100H 3.0 2.0V 2.5 1.0V 1.3V 2.0 VIN=0.9V 1.5 1.5V 1.0 0.5 L=220H 3.5 Output Voltage VOUT(V) Output Voltage VOUT(V) 3.5 0.0 3.0 2.5 1.0V 1.5V VIN=0.9V 1.3V 2.0 1.5 1.0 0.5 20 40 60 80 100 120 140 160 0 20 40 Output Current IOUT(mA) 3.0 2.0V 1.3V 1.5V VIN=1.0V 100 120 140 160 1.5 1.0 0.5 L=220H 3.5 Output Voltage VOUT(V) 3.5 2.0 80 RN5RK301B L=100H 2.5 60 Output Current IOUT(mA) RN5RK301B Output Voltage VOUT(V) 2.0V 0.0 0 0.0 3.0 2.0 2.0V 1.5V 1.3V 2.5 VIN=1.0V 1.5 1.0 0.5 0.0 0 10 20 30 40 50 0 Output Current IOUT(mA) 10 30 40 50 RN5RK501A L=100H 6 3.0V 1.5V VIN=0.9V 3 2 1 0 Output Voltage VOUT(V) 2.0V L=220H 6 4.0V 5 4 20 Output Current IOUT(mA) RN5RK501A Output Voltage VOUT(V) 1) 4.0V 5 4 1.5V 2.0V 3.0V VIN=0.9V 3 2 1 0 0 50 100 150 Output Current IOUT(mA) 200 0 50 100 150 200 Output Current IOUT(mA) 9 RN5RK RN5RK501B RN5RK501B L=100H 4.0V 5 2.5V 4 3.0V 2.0V 3 VIN=1.5V 2 1 L=220H 6 Output Voltage VOUT(V) Output Voltage VOUT(V) 6 0 4.0V 5 2.5V VIN=1.5V 3 2 1 0 0 50 100 150 200 0 50 Output Current IOUT(mA) 2) 3.0V 2.0V 4 150 200 Efficiency vs. Output Current (Topt=25C) RN5RK301A RN5RK301A L=100H 100 90 80 70 2.0V 60 1.0V Efficiency (%) Efficiency (%) L=220H 100 90 80 70 60 1.5V 50 VIN=0.9V 1.3V VIN=0.9V 40 0 20 40 60 80 100 120 140 160 0 Output Current IOUT(mA) 60 80 100 120 140 160 RN5RK301B L=100H L=220H 100 90 90 Efficiency (%) Efficiency (%) 1.3V 40 Output Current IOUT(mA) RN5RK301B 100 20 2.0V 1.5V 1.0V 50 40 80 2.0V 1.3V 1.5V VIN=1.0V 70 60 80 1.3V 1.5V 2.0V 70 VIN=1.0V 60 50 50 40 0 10 20 30 40 Output Current IOUT(mA) 10 100 Output Current IOUT(mA) 50 0 10 20 30 40 Output Current IOUT(mA) 50 RN5RK RN5RK501A RN5RK501A L=100H 100 L=220H 100 90 90 80 2.0V 3.0V 70 1.5V VIN=0.9V 60 Efficiency (%) Efficiency (%) 4.0V 4.0V 80 70 3.0V 1.5V 60 VIN=0.9V 50 50 40 40 2.0V 0 50 100 150 200 0 50 Output Current IOUT(mA) RN5RK501B 100 2.0V 2.5V 3.0V 70 VIN=1.5V 60 90 Efficiency (%) Efficiency (%) 200 L=220H 100 4.0V 90 50 80 2.0V 4.0V 2.5V 70 3.0V VIN=1.5V 60 50 40 40 0 50 100 150 200 0 50 Output Current IOUT(mA) 100 150 200 Output Current IOUT(mA) Ripple Voltage vs. Output Current (Topt=25C) RN5RK301A 140 RN5RK301A L=100 H 100 1.3V 2.0V 80 60 40 1.0V 20 VIN=0.9V Ripple Voltage Vr(mVp-p) 120 L=220H 160 1.5V Ripple Voltage Vr(mVp-p) 3) 150 RN5RK501B L=100H 80 100 Output Current IOUT(mA) 140 120 100 1.5V 1.3V 80 2.0V 60 40 1.0V 20 VIN=0.9V 0 0 0 20 40 60 80 100 120 140 160 Output Current IOUT(mA) 0 20 40 60 80 100 120 140 160 Output Current IOUT(mA) 11 RN5RK RN5RK301B RN5RK301B L=100H 40 35 30 25 20 1.5V 15 1.3V 10 VIN=1.0V 5 L=220H 45 2.0V Ripple Voltage Vr(mVp-p) Ripple Voltage Vr(mVp-p) 45 0 40 2.0V 35 30 25 1.0V 1.3V 20 1.5V 15 10 5 0 0 10 20 30 40 50 0 Output Current IOUT(mA) 30 40 50 RN5RK501A L=100H 3.0V 100 4.0V 2.0V 50 1.5V L=220H 200 Ripple Voltage Vr(mVp-p) 200 Ripple Voltage Vr(mVp-p) 20 Output Current IOUT(mA) RN5RK501A 150 10 150 3.0V 2.0V 4.0V 100 50 1.5V VIN=0.9V VIN=0.9V 0 0 0 50 100 150 200 0 Output Current IOUT(mA) 50 100 150 200 Output Current IOUT(mA) RN5RK501B RN5RK501B L=100H 140 L=220H 140 100 4.0V 80 60 2.0V 40 2.5V 20 Ripple Voltage Vr(mVp-p) Ripple Voltage Vr(mVp-p) 3.0V 120 120 100 3.0V 80 4.0V 60 40 2.5V 20 VIN=1.5V VIN=1.5V 0 0 0 50 100 150 Output Current IOUT(mA) 12 200 0 50 100 150 Output Current IOUT(mA) 200 RN5RK 4) Start-up/Hold-on Voltage vs. Output Current (Topt=25 C) RN5RK301A RN5RK501A L=100H 1.2 1.0 Vstart 0.8 0.6 0.4 Vhold 0.2 1.2 1.0 Vstart 0.8 0.6 Vhold 0.4 0.2 0.0 0.0 0 5 10 0 15 5 15 Output Current IOUT(mA) RN5RK301B RN5RK501B L=100H L=100H 2.0 1.8 Start-up/Hold-on Voltage Vstart/Vhold(V) 1.8 1.6 1.4 1.2 Vstart 1.0 0.8 0.6 Vhold 0.4 1.6 1.4 1.2 Vstart 1.0 0.8 0.6 Vhold 0.4 0.2 0.2 0.0 0.0 0 5 10 0 15 5 10 15 Output Current IOUT(mA) Output Current IOUT(mA) Output Voltage vs. Temperature RN5RK301A IOUT=0mA IOUT=10mA 3.00 2.95 IOUT=30mA VIN=3.0V,L=100H 5.10 Output Voltage VOUT(V) 3.05 RN5RK501A VIN=1.5V,L=100H 3.10 Output Voltage VOUT(V) 5) 10 Output Current IOUT(mA) 2.0 Start-up/Hold-on Voltage Vstart/Vhold(V) L=100H 1.4 Start-up/Hold-on Voltage Vstart/Vhold(V) Start-up/Hold-on Voltage Vstart/Vhold(V) 1.4 5.05 5.00 IOUT=30mA 4.95 IOUT=0mA IOUT=10mA 2.90 -50 -25 0 25 50 Temperature Topt( ) 75 100 4.90 -50 -25 0 25 50 75 100 Temperature Topt( ) 13 RN5RK 6) Start-up Voltage vs. Temperature RN5RK501A RN5RK501B L=100 H 0.8 0.6 0.4 0.2 0 -50 -25 0 25 50 75 L=100H 1 Start-up Voltage Vstart(V) Start-up Voltage Vstart(V) 1 0.8 0.6 0.4 0.2 0 -50 100 -25 Temperature Topt( ) 7) 50 75 100 RN5RK501B L=100H 0.8 0.6 0.4 0.2 0 -50 -25 0 25 50 75 L=100H 1 Hold-on Voltage Vhold(V) Hold-on Voltage Vhold(V) 1 0.8 0.6 0.4 0.2 0 -50 100 -25 Temperature Topt( ) 0 25 50 75 100 75 100 Temperature Topt( ) Lx Switching Current vs. Temperature RN5RK301A RN5RK501A 500 LxSwitching Current ILx(mA) LxSwitching Current ILx(mA) 500 400 300 200 100 0 -50 -25 0 25 50 Temperature Topt( ) 14 25 Hold-on Voltage vs. Temperature RN5RK501A 8) 0 Temperature Topt( ) 75 100 400 300 200 100 0 -50 -25 0 25 50 Temperature Topt( ) RN5RK 9) Supply Current 1 vs. Temperature RN5RK301A RN5RK501A 80 Supply Current1 IDD1(A) Supply Current1 IDD1(A) 50 40 30 20 10 -50 -25 0 25 50 75 70 60 50 40 30 -50 100 -25 Temperature Topt( ) 50 75 100 75 100 75 100 11) Standby Current 3 vs. Temperature RN5RK301A RN5RK301A 1 Supply Current3 Istandby(A) 5 Supply Current2 IDD2(A) 25 Temperature Topt( ) 10) Supply Current 2 vs. Temperature 4 3 2 1 0 -50 0 -25 0 25 50 75 0.8 0.6 0.4 0.2 0 -50 100 -25 Temperature Topt( ) 0 25 50 Temperature Topt( ) 12) Oscillator Duty Cycle vs. Temperature RN5RK301B Oscullator Duty Cycle Maxduty(%) Oscullator Duty Cycle Maxduty(%) RN5RK301A 85 80 75 70 -50 -25 0 25 50 Temperature Topt( ) 75 100 60 58 56 54 52 50 -50 -25 0 25 50 Temperature Topt( ) 15 RN5RK 13) CE "H" Input Voltage vs. Temperature 14) CE "L" Input Voltage vs. Temperature RN5RK301A RN5RK301A 1 CE L Input Voltage VCEL(V) CE H Input Voltage VCEH(V) 1 0.8 0.6 0.4 0.2 0 -50 -25 0 25 50 75 0.8 0.6 0.4 0.2 0 -50 100 -25 Temperature Topt( ) 75 100 75 100 RN5RK301A 0.8 120 110 VLx Voltage Limit VLx(V) Maximum Oscillator Frequency fOSC(kHz) 50 16) VLX Voltage Limit vs. Temperature RN5RK301A 100 90 80 70 60 -25 0 25 50 Temperature Topt( ) 16 25 Temperature Topt( ) 15) Maximum Oscillator Frequency vs. Temperature 50 -50 0 75 100 0.7 0.6 0.5 0.4 -50 -25 0 25 50 Temperature Topt( ) RN5RK RN5RKxx2A 1) Output Voltage vs. Output Current (Topt=25C) RN5RK302A RN5RK502A L=27H 3.0 2.0V 2.5 2.0 1.5 1.0 1.5V VIN=0.9V 0.5 1.3V 1.0V L=27H 6.0 Output Voltage VOUT(V) Output Voltage VOUT(V) 3.5 5.0 2.0V 4.0 0 2.0 1.0 200 400 600 800 0 Output Current IOUT(mA) 200 400 600 800 Output Current IOUT(mA) Efficiency vs. Output Current (Topt=25C) RN5RK302A RN5RK502A L=27H 100 90 Efficiency (%) Efficiency (%) L=27H 100 90 80 2.0V 70 1.5V 60 1.3V 1.0V VIN=0.9V 50 80 3.0V 70 2.0V VIN=1.0V 60 1.5V 50 40 40 30 0 200 400 600 800 0 Output Current IOUT(mA) 200 400 600 800 Output Current IOUT(mA) Ripple Voltage vs. Output Current (Topt=25C) RN5RK302A RN5RK502A L=27H 250 1.3V 2.0V 2.0V 1.5V 200 1.0V 150 L=27H 300 Ripple Voltage Vr(mVp-p) Ripple Voltage Vr(mVp-p) 3) 1.5V VIN=1.0V 3.0 0.0 0 2) 3.0V 100 50 250 3.0V 1.5V 200 150 100 VIN=1.0V 50 VIN=0.9V 0 0 0 200 400 600 Output Current IOUT(mA) 800 0 200 400 600 800 Output Current IOUT(mA) 17 RN5RK 4) Start-up/Hold-on Voltage vs. Output Current (Topt=25C) RN5RK302A RN5RK502A L=27H 2.0 Start-up/Hold-on Voltage Vstart/Vhold(V) Start-up/Hold-on Voltage Vstart/Vhold(V) 1.8 1.6 1.4 1.2 Vstart 1.0 0.8 0.6 Vhold 0.4 0.2 0.0 0 50 100 150 200 2.4 2.2 2.0 1.8 1.6 1.4 Vstart,Vhold 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 50 Output Current IOUT(mA) 5) 150 200 Output Voltage vs. Temperature 3.05 IOUT=0mA 3.00 2.95 IOUT=50mA 2.90 IOUT=100mA 2.85 2.80 -50 -25 0 25 50 75 VIN=3.0V,L=27H 5.10 Output Voltage VOUT(V) Output Voltage VOUT(V) RN5RK502A VIN=1.2V,L=27H 3.10 5.05 5.00 IOUT=100mA IOUT=50mA 4.95 4.90 -50 100 IOUT=0mA -25 0 25 50 75 100 75 100 Temperature Topt( ) Temperature Topt( ) EXT "H" Output Current vs. Temperature RN5RK502A 10 EXT H Output Current IEXTH(mA) EXT H Output Current IEXTH(mA) RN5RK302A 9 8 7 6 5 4 3 2 1 0 -50 -25 0 25 50 Temperature Topt( ) 18 100 Output Current IOUT(mA) RN5RK302A 6) L=27H 75 100 10 9 8 7 6 5 4 3 2 1 0 -50 -25 0 25 50 Temperature Topt( ) RN5RK 7) EXT "L" Output Current vs. Temperature RN5RK502A EXT L Output Current IEXTL(mA) EXT L Output Current IEXTL(mA) RN5RK302A 20 18 16 14 12 10 8 6 4 2 0 -50 -25 0 25 50 75 100 20 18 16 14 12 10 8 6 4 2 0 -50 -25 Temperature Topt( ) 8) 25 50 75 100 75 100 75 100 Temperature Topt( ) Supply Current 1 vs. Temperature RN5RK302A RN5RK502A 50 Supply Current1 IDD1(A) Supply Current1 IDD1(A) 50 40 30 20 10 0 -50 -25 0 25 50 75 40 30 20 10 0 -50 100 -25 Temperature Topt( ) 25 50 10) Standby Current vs. Temperature RN5RK302A RN5RK302A 1 Supply Current3 Istandby(A) 5 4 3 2 1 0 -50 0 Temperature Topt( ) Supply Current 2 vs. Temperature Supply Current2 IDD2(A) 9) 0 -25 0 25 50 Temperature Topt( ) 75 100 0.8 0.6 0.4 0.2 0 -50 -25 0 25 50 Temperature Topt( ) 19 RN5RK 11) Oscillator Duty Cycle vs. Temperature 12) Maximum Oscillator Frequency vs. Temperature RN5RK302A 120 Maximum Oscillator Frequency fOSC(kHz) Oscullator Duty Cycle Maxduty(%) RN5RK302A 85 80 75 70 -50 -25 0 25 50 75 110 100 90 80 70 60 50 -50 100 -25 Temperature Topt( ) RN5RK302A 75 100 RN5RK302A 1 CE L Input Voltage VCEL(V) CE H Input Voltage VCEH(V) 50 14) CE "L" Input Voltage vs. Temperature 1 0.8 0.6 0.4 0.2 -25 0 25 50 Temperature Topt( ) 20 25 Temperature Topt( ) 13) CE "H" Input Voltage vs. Temperature 0 -50 0 75 100 0.8 0.6 0.4 0.2 0 -50 -25 0 25 50 Temperature Topt( ) 75 100 PACKAGE INFORMATION * PE-SOT-23-5-0510 SOT-23-5 (SC-74A) Unit: mm PACKAGE DIMENSIONS 2.90.2 +0.2 1.1 -0.1 1.90.2 (0.95) (0.95) 2 0 to 0.1 3 +0.1 0.15 -0.05 0.40.1 0.2 MIN. 1 2.80.3 4 +0.2 1.6 -0.1 5 0.80.1 3.2 3.50.05 2.00.05 3.3 4.00.1 2.0MAX. 1.10.1 TR User Direction of Feed TAPING REEL DIMENSIONS (1reel=3000pcs) 20.5 210.8 60 +1 0 180 0 -1.5 130.2 11.41.0 9.00.3 8.00.3 4.00.1 +0.1 1.5 0 0.30.1 1.750.1 TAPING SPECIFICATION PACKAGE INFORMATION PE-SOT-23-5-0510 POWER DISSIPATION (SOT-23-5) This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the measurement at the condition below: (Power Dissipation (SOT-23-5) is substitution of SOT-23-6.) Measurement Conditions Standard Land Pattern Environment Mounting on Board (Wind velocity=0m/s) Board Material Glass cloth epoxy plactic (Double sided) Board Dimensions 40mm x 40mm x 1.6mm Copper Ratio Top side : Approx. 50% , Back side : Approx. 50% Through-hole 0.5mm x 44pcs Measurement Result (Topt=25C,Tjmax=125C) Standard Land Pattern Free Air Power Dissipation 420mW 250mW Thermal Resistance ja=(125-25C)/0.42W=263C/W 400C/W 500 40 On Board 420 400 Free Air 300 250 40 Power Dissipation PD(mW) 600 200 100 0 0 25 50 75 85 100 Ambient Temperature (C) 125 150 Power Dissipation Measurement Board Pattern IC Mount Area Unit : mm RECOMMENDED LAND PATTERN 0.7 MAX. 1.0 2.4 0.95 0.95 1.9 (Unit: mm) MARK INFORMATION ME-RN5RK-0310 RN5RK SERIES MARK SPECIFICATION * SOT-23-5 (SC-74A) 1 * 2 3 4 1 , 2 : Product Code (refer to Part Number vs. Product Code) 3 , 4 : Lot Number 5 Part Number vs. Product Code Part Number Product Code 1 2 RN5RK301A W A RN5RK241A W B RN5RK501A W C RN5RK201A W RN5RK251A W RN5RK331A RN5RK551A Part Number Product Code Part Number 1 2 RN5RK361A W K RN5RK261A W L RN5RK281A W D RN5RK321A E RN5RK371A W F W G RN5RK221A W H RN5RK201B X B RN5RK202A RN5RK271A W J RN5RK221B X C RN5RK252A Product Code 1 2 RN5RK251B X D RN5RK301B X E M RN5RK331B X F W N RN5RK361B X W P RN5RK501B X RN5RK391A W Q RN5RK551B RN5RK271B X A RN5RK391B Part Number Product Code 1 2 RN5RK272A Y C RN5RK302A Y D RN5RK332A Y E G RN5RK502A Y F H RN5RK552A Y G X J RN5RK522A Y H X K RN5RK222A Y J Y A RN5RK452A Y K Y B