RICOH RN5RZ SERIES Application Manual
Summary
The RN5RZ Series is a high-performance voltage regulator designed for reliable power management in general electronic devices. This comprehensive application manual serves as an indispensable guide for engineers and designers, detailing complex electrical characteristics, optimal selection procedures, and best practices for system integration. It covers everything from absolute maximum ratings to detailed typical curves, helping users ensure low noise and stable operation across various loads. Ideal for building consumer electronics, computer equipment, measuring instruments, and commercial office apparatus that require dependable power conversion.
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LOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR
RN5RZ SERIES APPLICATION MANUAL
ELECTRONIC DEVICES DIVISION
NO.EA-039-9803
Page Summary Contents For RICOH RN5RZ SERIES Application Manual
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LOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR RN5RZ SERIES APPLICATION MANUAL ELECTRONIC DEVICES DIVISION NO.EA-039-9803
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NOTICE 1. The products and the product specifications described in this application manual are subject to change or dis- continuation of production without notice for reasons such as improvement. Ther...
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RN5RZ SERIES APPLICATION MANUAL CONTENTS OUTLINE ......................................................................................................1 FEATURES..........................................
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LOW DROP-OUT AND LOW NOISE VOLTAGE REGULATOR RN5RZ SERIES OUTLINE The RN5RZ Series are voltage regulator ICs with high output voltage accuracy, low supply current, low dropout voltage and high ripple ...
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RN5RZ BLOCK DIAGRAMS RN5RZ××A RN5RZ××B VDD VOUT VDD VOUT Vref Vref Current Limit Current Limit CE GND CE GND SELECTION GUIDE The output voltage, the active type of the chip enable circuit, the packing...
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RN5RZ PIN CONFIGURATION • SOT-23-5 (mark side) PIN DESCRIPTION Pin No. Symbol Description GND Ground Pin VDD Input Pin VOUT Output Pin NC No Connection CE or CE Chip Enable Pin ABSOLUTE MAXIMUM RATING...
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RN5RZ ELECTRICAL CHARACTERISTICS • RN5RZ××A Series Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit VOUT Output Voltage VIN=VOUT+1V, IOUT=30m A ×0.98 ×1.02 VIN=VOUT+1V IOUT Output Current m A When...
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RN5RZ • RN5RZ××B Series Topt=25˚C Symbol Item Conditions MIN. TYP. MAX. Unit VOUT Output Voltage VIN=VOUT+1V, IOUT=30m A ×0.98 ×1.02 VIN=VOUT+1V IOUT Output Current m A When VOUT=VOUT–0.1V VIN=VOUT+1V...
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RN5RZ OPERATION RN5RZ××A RN5RZ××B VDD VOUT VDD VOUT Error Amp. Error Amp.+ Vref Vref Current Limit Current Limit CE GND CE GND In these ICs, Output Voltage VOUT is detected by Feed-back Registers R1, ...
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RN5RZ VDD VOUT RN5RZ SERIES C1VIN C2 GNDCE Fig.4 Load Transient Response Test Circuit VDD VOUT RN5RZ SERIES VIN C1 C2 GNDCE Fig.5 Ripple Rejection Test Circuit
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ut pu t V ol ta ge (V ut pu t V ol ta ge (V ut pu t V ol ta ge (V RN5RZ TYPICAL CHARACTERISTICS 1) Output Voltage vs. Output Current RN5RZ30B RN5RZ40B VIN=3.3V VIN=4.3V 0.0 ut pu t V ol ta ge (V 0.0 u...
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RN5RZ ro po ut ol ta ge IF (V ro po ut ol ta ge IF (V ut pu t V ol ta ge (V RN5RZ50B 2.0 IOUT=0m A IOUT=30m A IOUT=50m A Input Voltage VIN(V) 3) Dropout Voltage vs. Output Current ro po ut ol ta ge IF...
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ut pu t V ol ta ge (V ut pu t V ol ta ge (V up pl ur re nt IS (µ RN5RZ 4) Output Voltage vs. Temperature RN5RZ30B RN5RZ40B ut pu t V ol ta ge (V up pl ur re nt IS (µ Temperature Topt(˚C) Temperature T...
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RN5RZ up pl ur re nt IS (µ up pl ur re nt IS (µ up pl ur re nt IS (µ RN5RZ50B Input Voltage VIN(V) 6) Supply Current vs. Temperature up pl ur re nt IS (µ RN5RZ30B RN5RZ40B Temperature Topt(˚C) Tempera...
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ro po ut ol ta ge IF (V ip pl ej ec tio (d ip pl ej ec tio (d RN5RZ 7) Dropout Voltage vs. Set Output Voltage RN5RZ××B Topt=25˚C IOUT=10m A IOUT=30m A 0.25 IOUT=50m A IOUT=100m A ip pl ej ec tio (d ip...
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RN5RZ ip pl ej ec tio (d ip pl ej ec tio (d ip pl ej ec tio (d RN5RZ40B RN5RZ40B COUT=tantal 4.7µF COUT=tantal 10µF IOUT=1m A IOUT=1m A IOUT=30m A IOUT=30m A IOUT=50m A IOUT=50m A Frequency f(k HZ) Fr...
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ip pl ej ec tio (d ip pl ej ec tio (d RN5RZ ut pu t V ol ta ge (V 9) Ripple Rejection vs. Input Voltage (DC bias) RN5RZ30B IOUT =1m A RN5RZ30B IOUT =10m A COUT=tantal 10µF COUT=tantal 10µF f=400Hz f=4...
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RN5RZ tr=tf=5µS ut pu t V ol ta ge (V ut pu t V ol ta ge (V ut pu t V ol ta ge (V COUT=Tantal 3.3µF Input Voltage Output Voltage Time t(µS) tr=tf=5µS COUT=Tantal 10µF Input Voltage Output Voltage In p...
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RN5RZ ut pu t V ol ta ge (V ut pu t V ol ta ge (V ut pu t V ol ta ge (V COUT=Tantal 2.2µF Output Current Output Voltage Time t(µS) COUT=Tantal 3.3µF Output Current Output Voltage ut pu t C ur re nt IO...
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RN5RZ FOR STABLE OPERATION • Countermeasure for Noise VIN VOUT Ceramic RN5RZ SERIES Capacitor VIN S.A. GNDCE Spectrum ESR Analyzer Ceramic capacitor 0.01µF Measuring circuit for white noise ; RN5RZ30B...
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RN5RZ Ceramic Capacitor 4.7µF Ceramic Capacitor 10µF : Noise level is under 40µV : Noise level is under 40µV Output Current IOUT(m A) Output Current IOUT(m A) (W APPLICATION HINTS When using these ICs...
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RN5RZ POWER DISSIPATION The power dissipation of RN5RZ series (SOT-23-5) is measured. The measuring conditions as follows: Material : glass cloth epoxy plastic ow er is si pa tio (m Size of the board ...
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RN5RZ PACKAGE DIMENSION (Unit : mm) • SOT-23-5 0. 0 to 0.1 1. 0. .8 0. 0. IN TAPING SPECIFICATION (Unit : mm) • SOT-23-5 3. 5± 0. 2.0MAX. User Direction of Feed.
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RICOH COMPANY, LTD. ELECTRONIC DEVICES DIVISION HEADQUARTERS 13-1, Himemuro-cho, Ikeda City, Osaka 563-8501, JAPAN Phone 81-727-53-1111 Fax 81-727-53-6011 YOKOHAMA OFFICE (International Sales) 3-2-3, ...
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 24 |
| File Size | 151.90 KB |
| Published | May 27, 2026 |
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Frequently Asked Questions
How should I wire VDD and GND for stable operation?
Connect a capacitor of about 1µF between VDD and GND, ensuring wiring is as short as possible.
What components placement minimizes noise in the circuit design?
Keep external components physically close to the ICs and use the shortest available wiring paths.
Is this voltage regulator suitable for safety-critical systems like aircraft or life support support?
For applications requiring extreme reliability, contact Ricoh first. Designers must incorporate fail-safe measures.