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SP6133

Sipex Corporation
Part Number SP6133
Manufacturer Sipex Corporation
Description Synchronous Buck Controller
Published Apr 15, 2007
Detailed Description Solved by SP6133 TM Synchronous Buck Controller FEATURES ■ 5V to 24V Input step down converter ■ Up to 30A output ca...
Datasheet PDF File SP6133 PDF File

SP6133
SP6133

Overview
Solved by SP6133 TM Synchronous Buck Controller FEATURES ■ 5V to 24V Input step down converter ■ Up to 30A output capability ■ Highly integrated design, minimal components ■ UVLO Detects Both VCC and VIN ■ Overcurrent circuit protection with auto-restart ■ Power Good Output, ENABLE Input ■ Maximum Controllable Duty Cycle Ratio up to 92% ■ Wide BW amp allows Type II or III compensation ■ Programmable Soft Start ■ Fast Transient Response ■ High Efficiency: Greater than 95% possible ■ Available in Lead Free, RoHS Compliant 16-Pin QFN package ■ External Driver Enable/Disable ■ U.
S.
Patent #6,922,041 www.
DataSheet4U.
com UV IN 16 GL PGND GND 1 2 3 4 5 15 14 BST 13 12 GH 11 10 9 8 SWN ISP ISN VCC SP6133 16 Pin QFN 3mm x 3mm VFB 6 V IN 7 COMP EN PWRGD VIN 10-15V GND 3.
3V 0-10A GND DESCRIPTION The SP6133 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 SP6133 is designed to drive a pair of external NFETs using a fixed 300 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 SP6133 is available in a space saving 16-pin QFN and offers excellent thermal performance.
TYPICAL APPLICATION CIRCUIT C5 0.
1uF DBST CVCC 10uF BAT54WS VIN VCC R3 10K POWERGOOD NC PWRGD UVIN EN ENABLE BST GH SWN SC5018-2R7M 2.
7uH, 15A, 4.
1mOhm MB, Si4320DY 4 mOhm, 30V CBST 0.
1uF MT, Si4394DY 9.
75 mOhm, 30V C1 22uF C2 22uF VOUT C3 100uF C4 100uF SP6133 GL RS1 5.
11K RS2 5.
11K GND PGND ISP ISN CSP 6.
8nF CSS 47nF RZ3 1K CS 0.
1uF COMP CP1 39 pF VFB SS R1 68.
1K, 1% CZ3 560pF CF1 22pF CZ2 1500pF RZ2 23.
2K R2 21.
5K, 1% Note: Die attach paddle is internally connected to GND.
Oct 24-06 Rev L SP6133 Synchronous Buck Controller © 2006 Sipe...


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