Skip to main content Skip to first level navigation

RICOH imagine. change.

RICOH ELECTRONIC DEVICES CO., LTD.

Skip to main content First level navigation Menu
Main content

R1161 Series
Manual ECO Mode Shift Low Voltage 300mA Voltage Regulator (LDO Regulator)

Product Specifications

The R1161 Series are CMOS-based manual mode switching LDO regulators with ECO pin featuring 300mA output. By inputting control signals to the ECO pin, the mode of the regulator can be switched to low power mode or fast response mode, thus making both active and sleep modes available for the system. The CE pin can switch the regulator into standby mode.

FEATURES

Input Voltage Range (Absolute maximum rating) 1.4 V to 6.0 V (6.5 V)
Supply Current TYP. 4.5 µA (Low Power Mode, VOUT≥1.6V),
TYP. 60 µA (Fast Transient Mode, VOUT≥1.8V)
Standby Mode TYP. 0.1 µA
Dropout Voltage TYP. 0.23 V (IOUT=300mA,VOUT=3.0V)
Ripple Rejection TYP. 65 dB (f=1kHz, FT Mode)
Temperature-Drift Coefficient of Output Voltage TYP. ±100 ppm/°C
Line Regulation TYP. 0.01%/V (at Fast Transient Mode)
Output Voltage Accuracy ±2.0%(±3.0% at LP Mode)
Output Voltage 0.8V to 3.3V (0.1V steps)
Package SOT-23-5
Built-in fold-back protection circuit TYP. 50 mA (Current at short mode)
External Capacitors CIN = COUT = Tantalum 1.0 µF (VOUT<1.0V)
CIN = COUT =Ceramic 1.0 µF (VOUT≥1.0V)

APPLICATION INFORMATION

C1, C2 = 1.0 µF

TYPICAL CHARACTERISTICS

R1161N261x Dropout Voltage vs. Output Current
(Fast Response Mode)

PIN DESCRIPTION

SOT-23-52.9 mm × 2.8 mm

SOT-23-5

1 VDD
2 GND
3 CE or CE
4 ECO
5 VOUT

R1161 Series for Consumer

APPLICATIONS

  • Precision Voltage References
  • Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment
  • Power source for battery-powered equipment

SELECTION GUIDE

The output voltage, chip enable polarity, and auto discharge function, etc. for the ICs can be selected at the user’s request.

Product Name   Package Quantity per Reel
R1161Nxx1#-TR-FE Consumter SOT-23-5 3,000
  • xx … The output voltage can be designated in the range from 0.8V(08) to 3.3V(33) in 0.1V steps.
  • # … CE pin polarity and auto discharge function at off state are options as follows.
    A: "L" active type, without auto discharge function at off state
    B: "H" active type, without auto discharge function at off state
    D: "H" active type, with auto discharge function at off state

DOCUMENT/CONTACT

Purchase

Technical Support

Package *1 Marking Reliability *2
SOT-23-5 R1161N R1161N (-FE)

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

We recommend succeeding products.

Inquiry about products

Technical Support

Inquiries (SSL Form)

Inquiry about business

Purchase, Request for Samples and Documents

Distributors

Sample Online

Online Distributors