RICOH RP116Z Series 400mA 1V Input LDO Data Sheet
Summary
This CMOS LDO regulator is a high-efficiency power solution designed for battery-powered and portable electronics requiring stable voltage control (0.7V to 1.8V). Featuring a low dropout voltage, adjustable standby mode, and excellent output accuracy, it functions seamlessly in applications like hand-held communication gear, digital appliances, and camera systems. The comprehensive manual provides detailed electrical characteristics, package selection guides, and application information for power designers seeking reliable performance from a compact WLCSP package.
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RP116Z Series 400m A 1V Input LDO
The RP116x Series are CMOS-based LDO regulators featuring 400m A output. The input voltage as low as Min. 1.0V and the output voltage can be set from 0.7V. The output voltage accuracy has been improved to ± 0.8% and due to a built-in transistor with low on-resistance of 0.55Ω (at VOUT=1.5V), RP106x provides a low dropout voltage. The CE pin can switch the regulator to standby mode. In addition to (a 0.69mm square, t=0.36mm, 0.4mm pitch) WLCSP-4-P7 package is available. The package is thinner than WLCSP-4-P5 package of RP106Z (t=0.48mm).
FEATURES • Supply Current (ISS) ························Typ. 48μA (VIN=SET VOUT+1.0V) • Temp. coeff. of Output Voltage······· Typ. ± 60ppm/°C • Standby Current (Istandby) ·················Typ. 0.1μA (Same as above, CE="L") • Line Regulation ······························ Typ. 0.10%/V • Dropout Voltage (VDIF) ····················Typ. 0.22V (IOUT=400m A, VOUT=1.5V) • Fold-back Protection Circuit ··········· Current limit Typ. 110m A • Ripple Rejection (RR)·····················Typ. 60d B (f=10k Hz) • Constant Slope Circuit • Input Voltage Range (VIN) ···············1.0V to 3.6V • Auto-Discharge function················· D Version • Output Voltage Range (VOUT)··········0.7V to 1.8V (internally fixed) • Package ········································· WLCSP-4-P7 • Output Voltage Accuracy ················± 0.8% • Ceramic capacitors can be used···· 1μF or more
(The above shows specification at Topt=25°C. Design assurance value at -40°C ≤ Topt ≤ 85°C is also available. For details, please refer to the datasheet.)
BLOCK DIAGRAMS RP116xxx1B RP116Zxx1D (Without Auto-Discharge function) (With Auto-Discharge function)
VDD VOUT VDD VOUT
ro po ut ol ta ge IF (m
Vref Vref
Current Limit Current Limit
CE GND CE GND
SELECTION GUIDES
.xx. : Specify the output voltage within the range of 0.7V (.07.) to 1.8V (.18.)
Halogen Free Package Q'ty per Reel Part No.
in 0.1V steps.
WLCSP-4-P7 5,000 pcs RP116Z.xx.1.∗ -TR-F
.∗ : Select from (.B.) without auto-discharge function or (.D.) with auto-discharge function.
PACKAGES (Top View) TYPICAL CHARACTERISTIC
WLCSP-4-P7 RP116Z121x Dropout Voltage vs. Output Current
Topt=85°C Topt=25°C Topt=-40°C
1 VDD 2 CE 3 GND 4 VOUT
Output Current IOUT(m A)
APPLICATIONS • Power source for hand-held communication equipment, camera and VCRs • Power source for battery-powered equipment • Power source for home appliances and digital home appliances
No.EK-281-110728 400m A CMOS LDO Regulator
Page Summary Contents For RICOH RP116Z Series 400mA 1V Input LDO Data Sheet
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 2 |
| File Size | 225.98 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What is the usable range for the regulator's output voltage?
The internal fixed output voltage ranges from 0.7V to 1.8V.
What type and size of capacitor should I use when designing with this part?
Ceramic capacitors measuring 1μF or more can be used.
Is the RP116x suitable for mission-critical uses like aircraft systems?
For applications requiring extreme quality, such as aircraft or space vehicles, users must contact us first.
What does the standby current specification indicate about power draw?
The standby current (Istandby) is typically 0.1μA when the CE pin is set to 'L'.