RICOH R1130H SERIES Owner's Manual and User Guide
Summary
Discover the R1130H series, a versatile CMOS LDO regulator designed to provide stable power from 2.5V to 8V input with 300mA output capability. Ideal for engineers developing consumer electronics, including battery-powered devices, cameras, laptops, and portable communication equipment. This comprehensive guide details key specifications—such as standby current and adjustable voltage options—and offers selection advice, ensuring easy integration into your next robust electronic design.
Page 1 Text Content
R1130H Series
8V Input 300m A LDO with/without Adjust pin
The R1130H Series are CMOS-based LDO regulators featuring 300m A output. The input voltage (VIN) is as high as Max. 8V (maximum rating of 9V). R1130H is available in two versions : the internally fixed output voltage type or the adjustable output voltage type by an external resistor. The CE pin can switch the regulator into standby mode.
FEATURES • Supply Current (ISS) ························Typ. 50μA (VIN=SET VOUT+1.0V) • Output Voltage Accuracy ················± 2% • Standby Current (Istandby) ·················Typ. 0.1μA (Same as above, in standby) • Temp. coeff. of Output Voltage ·······Typ. ± 100ppm/°C • Dropout Voltage (VDIF) ····················Typ. 0.25V (IOUT=100m A, VOUT=2.8V) • Line Regulation·······························Typ. 0.1%/V • Ripple Rejection (RR)·····················Typ. 60d B (f=1k Hz) • Fold-back Protection Circuit············Current limit Typ. 70m A (VOUT≤3.9V) • Input Voltage Range (VIN) ···············2.5V to 8.0V Current limit Typ. 50m A (VOUT≥4.0V) • Output Voltage Range (VOUT)··········1.5V to 5.0V (internally fixed) • Packages ········································SOT-89-5 Externally specified with the ADJUST pin (Reference Voltage 1.8V : C Version)
BLOCK DIAGRAMS R1130Hxxx A R1130Hxxx B R1130Hxxx C
CE pin "L" active) (CE pin "H" active) (With ADJUST pin)
VDD VOUT VDD VOUT VDD VOUT
ro lt IF (V
Vref Vref Vref
Current Limit Current Limit Current Limit
CE GND CE GND CE GND
SELECTION GUIDES
Part No. .xx. : Specify the output voltage within the range of 1.5V (.15.) to 5.0V (.50.)
Halogen Free Package Q'ty per Reel
in 0.1V steps. (C Version is fixed at .00.
SOT-89-5 1,000 pcs R1130H.xx.1.∗ -T1-FE
.∗ : Select the polarity of the CE pin from (.A.) "L" active, (.B.) "H" active, or (.C.) "H" active with ADJUST pin.
PACKAGES (Top View) TYPICAL CHARACTERISTIC
SOT-89-5 R1130H331B Dropout Voltage vs. Output Current
1 VOUT 2 VDD
3 GND 4 NC or ADJ 5 CE or CE
Output Current IOUT(m A)
∗) The tab and tab suspension leads on back side are substrate level (VDD).
APPLICATIONS • Power source for CD/DVD drives • Power source for laptop personal computers • Power source for hand-held communication equipment, cameras, and VCRs • Power source for battery-powered equipment • Power source for automotive application
No.EK-078-110221 CMOS LDO Regulator
Page Summary Contents For RICOH R1130H SERIES Owner's Manual and User Guide
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 2 |
| File Size | 198.45 KB |
| Published | June 02, 2026 |
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Frequently Asked Questions
How can I adjust the output voltage?
The adjustable versions require an external resistor connected to the ADJUST pin for setting the desired 1.5V to 5.0V range.
What is the typical standby current draw?
The regulator typically draws a very low standby current of 0.1μA.
Is this product suitable for critical applications (e.g., aircraft)?
No, it's designed for general electronics; users requiring extreme reliability must contact Ricoh directly.