Ricoh R1118K Series Automatic Mode Shift Low Voltage LDO Datasheet

R1118K series are CMOS-based auto mode switching LDO regulators featuring 150mA output. In auto switching mode, the operation can switch automatically to fast response mode or low power mode of the ECO function according to output current. (Automatic switching to fast response mode under IOUT > 7mA conditions or to low power mode under IOUT < 2mA conditions.) In lower power mode, supply current is as low as 5.5μA. In fast response mode, ripple rejection is 70dB and noise is low. R1118K requires neither ECO pin for switching mode nor microcontroller pin. R1118K supports low voltage, featuring input voltage from 1.4V and output voltage from 0.8V. Standby mode and auto-discharge function are also available (see Selection Guide). Ceramic capacitors can be used.


Ricoh R1118K Series Automatic Mode Shift Low Voltage LDO Datasheet - cover page
Brand
Ricoh
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
2
File format
PDF
File size
197 KB
Published
09 July, 2012
Updated
30 September, 2023
MD5 checksum
35CA256A86A9F32EB11D43964CE447CF

About this manual

The R1118K Series are CMOS-based automatic mode shift Low Voltage Drop (LDO) regulators that feature a 150mA output current. The device automatically switches between fast response mode and low power ECO function modes based on the output current, requiring neither an ECO pin nor a microcontroller pin for operation.

What's inside

  • Automatic Mode Shift
  • Low Voltage Operation
  • Supply Current Specifications
  • Ripple Rejection
  • Dropout Voltage
  • Input/Output Voltage Ranges
  • Package Information

Specifications

Output Current (Iout)150mA
Supply Current (Low Power Mode)Typ. 5.5µA
Supply Current (Fast Response Mode)Typ. 50µA
Ripple RejectionTyp. 70dB @ 1kHz
Input Voltage Range (Vin)1.4V to 6.0V
Output Voltage Range (Vout)0.8V to 4.2V
Dropout VoltageTyp. 0.27V @ 150mA, 2.8V out
Package TypeDFN(PLP)1612-4B

Frequently asked questions

What is the operating input voltage range?

The device supports an input voltage range from 1.4V to 6.0V.

Can ceramic capacitors be used?

Yes, the datasheet states that ceramic capacitors can be used.

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