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SP6136

Sipex Corporation
Part Number SP6136
Manufacturer Sipex Corporation
Description Synchronous Buck Controller
Published Nov 27, 2006
Detailed Description www.DataSheet4U.com SP6136 Synchronous Buck Controller IN FEATURES ■ 5V to 24V Input step down converter ■ Up to 7A ...
Datasheet PDF File SP6136 PDF File

SP6136
SP6136

Overview
www.
DataSheet4U.
com SP6136 Synchronous Buck Controller IN FEATURES ■ 5V to 24V Input step down converter ■ Up to 7A output in a small form factor ■ Highly integrated design, minimal components GL ■ UVLO Detects Both VCC and VIN PGND ■ Overcurrent circuit protection with auto-restart ■ Power Good Output, ENABLE Input ■ Maximum Controllable Duty Cycle Ratio up to 92% GND ■ Wide BW amp allows Type II or III compensation VFB ■ Programmable Soft Start ■ Fast Transient Response ■ Available in Lead Free, RoHS Compliant 16-Pin QFN package ■ External Driver Enable/Disable ■ U.
S.
Patent #6,922,041 16 1 2 3 4 15 14 BST 13 12 GH 11 10 9 VCC SP6136 16 Pin QFN 3mm x 3mm UV VI N SWN ISP ISN 5 COM P 6 EN 7 PWRGD VIN CIN 22uF 8 SS DESCRIPTION The SP6136 is a synchronous step-down switching regulator controller optimized for high efficiency.
The part is designed to be especially attractive for single supply step down conversion from 5V to 24V.
The SP6136 is designed to drive a pair of external NFETs using a fixed 600 KHz frequency, PWM voltage mode architecture.
Protection features include UVLO, thermal shutdown, output short circuit protection, and overcurrent protection with auto restart.
The device also features a PWRGD output and an enable input.
The SP6136 is available in a space saving 16-pin QFN and offers excellent thermal performance.
TYPICAL APPLICATION CIRCUIT C3 0.
1uF DBST CVCC 4.
7uF SD101AWS VIN VCC R5 POWERGOOD NC EN ENABLE 10kΩ PWRGD SWN UVIN MB, Si4886DY 13.
5 mΩ, 30V GL RS3 10KΩ ISP PGND ISN COMP VFB CP1 12 pF CZ3 270pF CF1 22pF CZ2 560pF RZ2 30.
9kΩ SS CSS 47nF RZ3 1kΩ R2 21.
5kΩ, 1% CSP 6.
8nF CS 0.
1uF R1 68.
1kΩ, 1% BST GH Inter-Technical SC7232-2R2 2.
2uH, 13A, 10.
4mΩ CBST 0.
1uF MT, Si4354DY 18.
5 mΩ, 30V 12V GND VOUT COUT 100uF SP6136 RS1 5.
11KΩ RS2 5.
11KΩ GND 3.
3V 0-7A GND Note: Die attach paddle is internally connected to GND.
Oct 31-06 Rev L SP6136 Synchronous Buck Controller © 2006 Sipex Corporation  ABSOLUTE MAXIMUM RAT...


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