Overview

The RRP51045 is an ultra-low noise, high PSRR, low dropout regulator capable of sourcing up to 4A of load current with only 250mV dropout voltage. It operates from an input voltage of 1.1V for extremely low voltage applications to 6.5V.

The LDO output voltage can be programmed from 0.5V to 2.075V using voltage setting pins on the IC in 25mV steps, eliminating the need for traditional external feedback resistors and saving PCB space. External feedback resistors can still be used for higher output voltage applications, allowing the output voltage to be programmed anywhere from 0.5V to 5.1V.

RRP51045 - Typical Application Schematic
RRP51045 - Block Diagram
RRP51045 - Pin Assignments
RRP51045 - Typical Application Schematic
RRP51045 - Block Diagram
RRP51045 - Pin Assignments
  • Maximum dropout: 250mV at 4A with BIAS
  • Output voltage accuracy: ±1%
  • Ultra-low output noise: 7µVRMS
  • Input voltage range:
    • Without BIAS: 1.4V to 6.5V
    • With BIAS: 1.1V to 6.5V
  • Output voltage range:
    • Using PCB layout and voltage set pins: 0.5V to 2.075V
      • External FB resistors: 0.5V to 5.1V

Applications

  • Sensor, imaging, and radar
  • Test and measurement
  • Instrumentation, medical, and audio
  • RF power supplies

Documentation

= Featured Documentation
Type Title Date
Datasheet
RRP51045 Datasheet
PDF 2.89 MB
1 item

Design & Development

Software & Tools
iSim:PE Offline Simulation Tool
iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
 Simulator Renesas
1 item
RTKP51045DE0000BU Evaluation Board - Top

RTKP51045DE0000BU

Evaluation
Learn More

RRP51045 Low-dropout Linear Regulator (LDO) Evaluation Board

The RTKP51045DE0000BU evaluation board provides a simple platform to evaluate the 3.5×3.5mm 20-Ld QFN RRP51045 low-dropout linear regulator (LDO).

Featured Documents:
RTKP51045DE0000BU Evaluation Board Manual

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    RRP51045-Q10
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    Samples Available
    		 QFN Reel 1 Get Samples,
    RRP51045-Q20
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    spa
    view_in_ar
    Samples Available
    		 QFN Reel 1 Get Samples,
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