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Overview

Description

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.

Features

  • 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

Comparison

Applications

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

Documentation

Type Title Date
Datasheet PDF 2.89 MB
1 item

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
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

Boards & Kits

Models

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.

Diagram of ECAD Models