Design contains obsolete parts

XRP6657EVB: 1.8V @ 1.5A, 2.5 ~ 5.5V in

Summary

The XRP6657 is a high efficiency synchronous step down DC to DC converter capable of delivering up to 1.5 Amp of current and optimized for portable battery-operated applications.

Operating over an input voltage range of 2.5V to 5.5V, it provides an adjustable regulated output voltage down to 0.6V. The XRP6657 uses a constant 1.3 MHz frequency pulse width modulation (PWM) scheme allowing for compact external components, low output voltage ripple and fixed frequency noise, while Pulse Skip Mode (PSM) is used to improve light load efficiency. A low dropout mode provides 100% duty cycle operation. The solution footprint is further reduced by a current mode internal compensation network and built-in synchronous switch removing the need for an external Schottky. Over-current and over-temperature protection insures safe operations 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 1016-1431-ND
Eval Board Supplier MaxLinear, Inc.
Eval Board Board not Stocked
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1.8 V
Current Out 1.5 A
Voltage In 2.5 ~ 5.5 V
Efficiency @ Conditions >82%, 3.6~4.2V in, 1.8V @ 0.1 ~ 1.5 A
>81%, 2.5V in, 1.8V @ 0.1 ~ 1.5 A
Voltage Out Range 0.6 ~ Vin
Features Over Current Protection
Thermal Protection
Switching Frequency 1.3 MHz
Standby Current [Typical] 100 nA
Quiescent Current [Typical] 240 µA
Component Count + Extras 6 + 5
Internal Switch Yes
Design Author Exar Corporation
Application / Target Market Audio: MP3 Players
Computers
Digital Cameras
DVD/Blu-ray Players
Point of Load (PoL)
Portable Devices
RF: BlueTooth
Set-Top Boxes
USB Powered Devices
Standby Current [Maximum] 1 µA
Quiescent Current [Maximum] 340 µA
Main I.C. Base Part XRP6657
Date Created By Author 2009-07
Date Added To Library 2012-08

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