ADP1851-EVALZ: 1.8V @ 25A, 9 ~ 15V in

Summary

This document describes the design, operation, and test results of the ADP1851-EVALZ. The input voltage range for this eval-uation board is 9 V to 15 V, and the regulated output voltage (VOUT) is set to 1.8 V with the maximum output current up to 25 A. The switching frequency (fSW) of 600 kHz is set to achieve high efficiency. The switching frequency can be also synchro-nized to an external clock signal applied to the SYNC input.

The ADP1851 is a step-down switching controller with inte-grated drivers for N-channel synchronous power MOSFETs.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number 505-ADP1851-EVALZ-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1.8 V
Current Out 25 A
Voltage In 9 ~ 15 V
Efficiency @ Conditions >86%, 12V in, 1.8V @ 1 ~ 25 A
Voltage Out Range 0.6 ~ 90% Vin
Features Current Limit (Adj. or Fixed)
Light Load Mode
Over Current Protection
Over Voltage Protection
Pre-Biased Startup
Shutdown, Enable, Standby
Soft Start
Synchronizable
Thermal Protection
Under Voltage Protection, Brown-Out
Voltage Tracking
Switching Frequency 600 kHz
Standby Current [Typical] 100 µA
Quiescent Current [Typical] 4.2 mA
Component Count + Extras 32 + 27
Internal Switch Yes
Design Author Analog Devices
Application / Target Market Medical
Point of Load (PoL)
Standby Current [Maximum] 200 µA
Quiescent Current [Maximum] 5.7 mA
Main I.C. Base Part ADP1851
Date Created By Author 2012-08
Date Added To Library 2024-01

Eval Board

Non-Stock

Order a fully assembled board:

Quantity Available: 0

Quantity:

Support Documents & Media

ADP1851 - Datasheet ADP1851-EVALZ - User Guide

Media

ADP1851_EVALZ_Schematic_Full.png ADP1851_EVALZ_Board_Full.jpg ADP1851_EVALZ_Chart_1_Full.png