XRP6141EVB: 1.2V @ 25A, 4.5 ~ 22V in

Summary

The XRP6141 is a synchronous step-down controller for point-of load supplies up to 35A. A wide 4.5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V and 19.6V rails.

With a proprietary emulated current mode Constant On-Time (COT) control scheme, the XRP6141 provides extremely fast line and load transient response using ceramic output capacitors. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The control loop also provides exceptional line regulation and maintains constant operating frequency. A selectable power saving mode, allows the user to operate in discontinuous mode (DCM) at light current loads thereby significantly increasing the converter efficiency.

A host of protection features, including over-current, over-temperature, short-circuit and UVLO, help achieve safe operation under abnormal operating conditions.

Specifications

Manufacturer	MaxLinear, Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	1016-1987-ND
Eval Board Supplier	MaxLinear, Inc.
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	1.2 V
Current Out	25 A
Voltage In	4.5 ~ 22 V
Efficiency @ Conditions	>85%, 5V in, 1.2V @ 0.2 ~ 6 A (DCM/CCM) >75%, 12V in, 1.2V @ 0.22 ~ 6 A (DCM/CCM)
Voltage Out Range	0.6 ~ 18 V
Features	Current Limit (Adj. or Fixed) Over Current Protection Power Good Output Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out Voltage Reference
Switching Frequency	200 ~ 800 kHz
Standby Current [Typical]	100 nA
Quiescent Current [Typical]	700 µA
Component Count + Extras	31 + 21
Internal Switch	No
Design Author	Exar Corporation
Application / Target Market	FPGA / DSP / Processors Medical Networking Point of Load (PoL) Power: Industrial Power
Standby Current [Maximum]	- Not Given
Quiescent Current [Maximum]	2 mA
Main I.C. Base Part	XRP6141
Date Created By Author	2013-11
Date Added To Library	2025-10