PMP9454: 5V @ 3A, 7 ~ 36V in, Buck

Summary

The PMP9454 reference design is footprint compatible to the module PTN78060W. The PMP9454 reference design is an easy to use synchronous regulator with LM43603 SIMPLE SWITCHER stepdown DC-DC converter.

PMP9454 is capable of driving up to 3A load current from a wide input voltage ranging from 7 to 36V. It provides exceptional efficiency, output voltage accuracy and dropout voltage in a small package.

In addition, the PMP9454 device is compatible with the 24V industrial bus voltage. The adjustable frequency of PMP9454 module ranges from 200 kHz to 2.2MHz. However, the board has 500 kHz default frequency.

Specifications

Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 5 V
Current Out 3 A
Voltage In 7 ~ 36 V
Efficiency @ Conditions >86%, 15V in, 5V @ 0.15 ~ 2.5 A
>82%, 24V in, 5V @ 0.15 ~ 3 A
>80%, 15V in, 3.3V @ 0.2 ~ 3 A
>75%, 24V in, 3.3V @ 0.2 ~ 3 A
>75%, 15V in, 2.5V @ 0.2 ~ 3 A
>70%, 24V in, 2.5V @ 0.3 ~ 3 A
Voltage Out Range 1 ~ 28 V
Features Current Limit (Adj. or Fixed)
Power Good Output
Pre-Biased Startup
Short Circuit Protection
Shutdown, Enable, Standby
Soft Start
Synchronizable
Thermal Protection
Under Voltage Protection, Brown-Out
Voltage Tracking
Switching Frequency 500 kHz
Standby Current [Typical] 1.2 µA
Quiescent Current [Typical] 5 µA
Component Count + Extras 26 + 5
Internal Switch Yes
Design Author Texas Instruments
Application / Target Market Automotive
Point of Load (PoL)
Power: Auxiliary Power Supply
Power: Industrial Power
Telecom
Standby Current [Maximum] 3.1 µA
Quiescent Current [Maximum] 10 µA
Main I.C. Base Part LM43603
Date Created By Author 2014-08
Date Added To Library 2015-01

Support Documents & Media

LM43603 - Datasheet PMP9454 - User Guide

Media

PMP9454_Schematic_Full.png PMP9454_Board_1_Full.jpg PMP9454_Board_2_Full.jpg PMP9454_Chart_1_Full.png PMP9454_Chart_2_Full.png PMP9454_Chart_3_Full.png PMP9454_Chart_4_Full.png