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RP109 Series

Low Voltage 150mA LDO Regulator

  • Consumer
  • PLP
  • RoHS

The RP109 Series are CMOS-based LDO regulators featuring 150mA output. The input voltage (VIN) is as low as Min. 1.4V and the output voltage can be set from 0.8V. RP109 Series features an excellent line transient response, ripple rejection at 75dB, and low noise. The output voltage accuracy has been improved to ± 1% and the temperature drift coefficient of the output voltage is as low as ± 30ppm/°C. In addition to SOT-23-5, SC-88A and DFN1010-4 packages, a 0.8mm square ultra compact DFN(PLP)0808-4 package is also available. RP109 Series contributes to the downsizing of the hand-held equipment because it can use the 0.1µF ceramic capacitor.

Specs & Datasheets

Input Voltage Range 1.4 V to 5.25 V (6.0 V)
Operating Temperature Range -40°C to 85°C (125°C)
Supply Current Typ. 50 µA
Standby Current Typ. 0.1 µA
Output Voltage Range 0.8 V to 3.6 V (0.1 V step)
Output Voltage Accuracy ±1.0% (Ta = 25°C)
Output Voltage Temperature Coefficient Typ. ±100 ppm/°C (VOUT < 1.8 V)
Typ. ±30 ppm/°C (VOUT ≥ 1.8 V)
Dropout Voltage Typ. 0.25 V (IOUT = 150 mA, VOUT = 2.5 V)
Line Regulation Typ. 0.02%/V
Output Current 150 mA
Ripple Rejection Typ. 75 dB (f=1 kHz, VOUT = 2.5 V)
Package DFN(PLP)0808-4, DFN1010-4, SC-88A, SOT-23-5

Download Datasheet

Protections / Functions

Functional Description

TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver

Technical Documents

RP109x25xx Dropout Voltage vs. Output Current

RP109x25xx Dropout Voltage vs. Output Current

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
DFN(PLP)0808-4 RP109K RP109K
  • gradeConsumerC
  • plpP
DFN1010-4 RP109L RP109L
  • gradeConsumerC
SC-88A RP109Q RP109Q-FE
  • gradeConsumerC
  • plpP
SOT-23-5 RP109N RP109N-FE

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

TSD Thermal Shutdown Function
Reverse Current Protection Reverse Current Protection
Current Limit Overcurrent Protection
ISC Short Current Protection
Inrush Current Limit Inrush Current Protection
Constant Slope Constant Slope Function
ECO mode ECO Function
Auto Discharge Auto Discharge Function
External Driver External Output Driver Transistor

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max (V)
Functions Auto Discharge