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reference designRT2825 | Demoboard EVB_RT2825GQV(2)

Richtek RT2825 | Demoboard EVB_RT2825GQV(2)

4.5V to 18V, 5A/5A Dual Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4.5-18 V
Output 11.8 V / 5 A
IC revision00

Description

The RT2825 is a current mode step-down converter with the input voltage range from 4.5V to 18V and provides two channels 5A output current. This document explains the function and use of the RT2825 evaluation board (EVB), and provides information to enable operation, modification of the evaluation board and circuit to suit individual requirements.

Features

  • Wide Input Supply Voltage Range : 4.5V to 18V
  • Fully Integrated Dual-Buck Converter, Up to 5A/5A
  • Adjustable Switching Frequency 200kHz to 1MHz Set by External Resistor or SYNC Signal
  • Dedicated Enable/Soft-Start for Each Buck
  • Current Mode Control with Simple Compensation Circuit
  • Adjustable Cycle-by-Cycle Current Limit Set by External Resistor
  • Over-Temperature Protection
  • Power Good Indicator
  • Discontinuous Operating Mode at Light Load when LOWP pin = L
  • 1% VREF Accuracy

Typical applications

  • Industrial
  • Automotive & e-Mobility
  • Consumer Electronics
  • Communication & Enterprise

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
Material
LR(µH)
fres(MHz)
SamplesAvailability & Sample
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7443330220
SPECWE-HCC SMT High Current Cube Inductor, 2.2 µH, 17.4 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCC SMT High Current Cube Inductor
Inductance2.2 µH
Performance Rated Current17.4 A
Saturation Current @ 10%22.5 A
Saturation Current @ 30%25.6 A
DC Resistance4.8 mΩ
MaterialFerrite 
Rated Inductance2.1 µH
Self Resonant Frequency80 MHz
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