RS5RJ RICOH Co.,Ltd., RS5RJ Datasheet
RS5RJ
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RS5RJ Summary of contents
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... RS5RJ SERIES OUTLINE The RS5RJ series are CMOS-based step-up DC/DC converter ICs equipped with a voltage regulator (VR) and a voltage detector (VD). Each of these step-up DC/DC converter ICs consists of a VFM DC/DC converter, a linear regulator and a voltage detector. These ICs are output-voltage-fixed type regulators which function as a linear regulator when input voltage is high, and as step-up DC/DC converter + linear regulator when input voltage is low, by using an inductor, a diode and a capacitor as external parts for the ICs ...
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... RS5RJ BLOCK DIAGRAM SELECTION GUIDE In the RS5RJ Series, the output voltage, the detector threshold, the version symbols, 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: RS5RJxxxxx – xx ↑ ...
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... Voltage Detector Output Pin.Nch Open Drain Output OUT 4 VD Detection Input Pin of Voltage Detector Output Pin for Regulator OUT 6 V Step-up Output. Power Supply Pin DD 7 EXT External Transistor Drive Pin 8 L External Inductor Drive Pin Pin Description RS5RJ 3 ...
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... RS5RJ ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage EXT Output Voltage V OUT VD OUT V CE Input Voltage Inductor Drive Output Current I EXT P Power Dissipation D Topt Operating Temperature Range Tstg Storage Temperature Range Tsolder Lead Temperature (Soldering) Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions ...
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... RL 2. =5mA =Vss –0 –0 CE=V –0.5 DD CE=Vss –0.5 V =3V, L=100µH, IN C=22µF, CE=Vss, No load V =3V, L=100µH, IN C=22µF, CE load RS5RJ Topt=25˚C Typ. Max. Unit Note 10 V 4.10 4.21 V 0.9 1 100 120 kHz 0.5 V 0.01 10.00 µA 0 0.5 V 3.60 3.69 V 0.3 V ...
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... RS5RJ RS5RJ5045A,B • Symbol Item V Operation Input Voltage IN V Step-up Output Voltage DD Voscst Oscillator Start-up Voltage Vhold Hold-on Voltage fosc MaximumOscillator Frequency Maxdty Oscillator Duty Cycle V Lx Output Voltage Leakage Current Voltage Limit lim LX V EXT Output Pch ON Voltage ...
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... SD is turned off. In the case of the VFM control system, with the on-time period (ton) maintained constant, the output voltage is maintained constant by controlling the oscillator frequency (fosc OUT V OUT CL RS5RJ < Current through L > IL min IL max topen t ton toff T=1/ fosc 7 ...
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... RS5RJ OPERATION 100µ 100µF FIG. A Diagram of RS5RJ including external circuits 1. V Output Voltage DD V output voltage is shown in Fig (1) In the case of V –Vf≥ Area B, LxTr is maintained in an OFF state, so that V step-up operation. (2) In the case of V – ...
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... DD V OUT 1µF C OUT Test Circuit EXT OUT OPEN IN A Digitizing Oscilloscope A RS5RJ V IN Oscilloscope 22µF C VDD Oscilloscope CE EXT VD V OUT OUT V IN Test Circuit EXT ...
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... OUT 22µF 100Ω 1µF Pulse Generator Test Circuit 6 100µH 220Ω 100Ω OUT Pulse 1µF Generator VD IN Test Circuit 7 D RS5RJ Rb EXT OUT VDD Test Circuit VDD C OUT ...
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... Test Circuit 4: Typical Characteristics 6) Test Circuit 5: Typical Characteristics 15) Test Circuit 6: Typical Characteristics 17) Test Circuit 7: Typical Characteristics 18) Test Circuit 8: Typical Characteristics 19) 20) In this IC, input current at no load is defined as supply current.(CE=V And when CE=V , the input current (no load) is defined as standby current. DD × RS5RJ 11 ...
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... IN RS5RJ4036A 4.5 4.0 3.5 I =10mA OUT I =20mA OUT I =30mA OUT I =40mA OUT 3 Input Voltage V (V) IN RS5RJ3531A 4.0 3.5 3.0 I =10mA OUT I =20mA OUT I =30mA OUT I =40mA OUT 2 Input Voltage V (V) IN RS5RJ3027A 3.5 3.0 2.5 I =10mA OUT I =20mA OUT ...
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... IN 2.5 0 150 (mA) 3.5 3.0 2.5 2.0 80 100 0 (mA) RS5RJ RS5RJ4036A V = = 150 100 Output Current I (mA) OUT RS5RJ3531A V = 100 Output Current I (mA) OUT RS5RJ3027A V = 100 Output Current I (mA) OUT 13 ...
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... OUT L=100µH C =47µF OUT Tantalum 4.0V 3.0V 2. (mA) OUT L=100µH C =100µF OUT 4.0V 3. (mA) OUT L=47µH RS5RJ5045A C =22µF OUT Tantalum 120 100 80 4. 3.0V 20 2.0V V =1. Output Current I (mA) OUT L=220µH C =22µF ...
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... RS5RJ RS5RJ4036A I =40mA OUT I =30mA OUT I =20mA OUT I =10mA OUT Input Voltage V (V) IN RS5RJ3531A I =40mA OUT I =30mA OUT I =20mA OUT I =10mA OUT Input Voltage V (V) IN RS5RJ3027A I =40mA OUT I =30mA OUT I =20mA OUT ...
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... 100 (mA) OUT RS5RJ4036A 100 = = = 100 Output Current I (mA) OUT RS5RJ3531A = 100 Output Current I (mA) OUT RS5RJ3027A =2V V =3V IN ...
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... Output Voltage (V 4.3 4.1 3.9 3.7 100 – 40 – RS5RJ C =22µF VDD RS5RJ5045B C =47µF OUT I =40mA OUT 10mA 1mA Input Voltage V (V) IN RS5RJ3624A 100 Temperature Topt (˚C) ) vs.Temperature DD RS5RJ3624A 100 Temperature Topt (˚C) 17 ...
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... Supply Current vs. Input Voltage (V) IN 15) VD Input Current vs. VD Input Voltage B version A version 100 RS5RJ3624A 2.6 2.4 2.2 2.0 – 40 – 100 Temperature Topt (˚C) RS5RJxxxxA 100 80 RS5RJ5045A RS5RJ3624A 60 RS5RJ3027A Input Voltage V (V) IN RS5RJ5045A V =5.5V DD 1.0 0.8 0.6 0.4 0 ...
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... Start-up/Hold-on Voltage vs. Output Current RS5RJ5045A 1.6 1.4 1.2 Vstart 1.0 0.8 0.6 Vhold 0.4 0 Output Current I OUT 15 20 (mA) RS5RJ 19 ...
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... RS5RJ5045A Output Voltage Output Current Time t (ms) RS5RJ5045A Output Voltage Output Current Time t (ms) Time t (ms) RS5RJ5045A Output Voltage Output Current Time t (ms) V =3. =1µF OUT 180 150 120 1mA 0 8 ...
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... RS5RJ5045A 1mA Time t (ms) Time t (ms) RS5RJ5045A 1mA Time t (ms) RS5RJ5045A 1mA Time t (ms) RS5RJ V =5. =47µF OUT 180 150 120 =3. =100µF OUT 180 150 120 90 60 ...
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... RS5RJ5045A Output Voltage Input Voltage Time t (ms) RS5RJ5045A Output Voltage Input Voltage Time t (ms) RS5RJ5045A Output Voltage Input Voltage Time t (ms) I =1mA OUT C =1µF OUT =1mA OUT C =1µF OUT ...
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... Output Voltage 5.1 5.0 4.9 4.8 Input Voltage 4.7 4.6 4.5 4.4 – RS5RJ5045A Time t (ms) RS5RJ5045A Time t (ms) RS5RJ5045A Time t (ms) RS5RJ I =30mA OUT C =1µF OUT =1mA OUT C =47µF OUT =1mA OUT C =47µF ...
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... RS5RJ5045A Output Voltage Input Voltage Time t (ms) RS5RJ5045A Output Voltage Input Voltage Time t (ms) RS5RJ5045A Output Voltage Input Voltage Time t (ms) I =30mA OUT C =47µF OUT =30mA OUT C =47µF ...
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... Output Voltage 5.0 4.9 4.8 4.7 Input Voltage 4.6 4.5 4.4 – RS5RJ5045A Time t (ms) RS5RJ5045A Time t (ms) RS5RJ5045A Time t (ms) RS5RJ I =1mA OUT C =100µF OUT =30mA OUT C =100µF OUT =30mA OUT C =100µF ...
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... I =40mA OUT 6.0 5.8 5.6 5 5.2 5.0 V OUT 4.8 3.0V 4.0V V =1.2V 2.0V IN 4.6 0 100 200 300 400 500 600 700 V Output Current I (mA) DD DDOUT Output Current DD RS5RJ5045A I =20mA OUT 100 3. =1. 100 200 300 400 500 600 700 V Output Current I (mA) DD DDOUT RS5RJ5045A I =60mA ...
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... BASIC CIRCUIT Examples of Parts : Inductor Diode Capacitor : 22µF (Tantalum type Inductor Vss Lx Diode CE EXT OUT DD + Capacitor OUT : RCR-664D (100µH) ; Sumida Electric Co., Ltd. : MA721 (Schottky type) ; Matsushita Electronics Corporation RS5RJ 27 ...
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... PNP Tr :2SA1213 Rb :220Ω Rbe :12Ω D Rb1 V DD EXT C VDD RS5RJ Vss (NOTE) High efficiency current boost circuit,using RS5RJ5045x with RN5RG50A(Ricoh Voltage Regulator 0.01µF D NPN Tr : 2SD1628 PNP Tr : 2SA1213 Rb1 : 220Ω Rb2 : 330Ω Rbe : 10kΩ V OUT PNP Tr ...
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... PCB patterns and the IC do not exceed their respective rated values. APPLICATION HINTS Pin by switching. When the impedance of the SS exceeds the absolute maximum ratings at the LX RS5RJ Pin, make minimum con- OUT 29 ...