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SP6132

Sipex
Part Number SP6132
Manufacturer Sipex
Description Wide Input / 300KHz Synchronous PWM Controller
Published Jun 7, 2005
Detailed Description SP6132 Wide Input, 300KHz Synchronous PWM Controller FEATURES ■ 3V to 15V Step Down Achieved Using Dual Input ■ On-Boar...
Datasheet PDF File SP6132 PDF File

SP6132
SP6132

Overview
SP6132 Wide Input, 300KHz Synchronous PWM Controller FEATURES ■ 3V to 15V Step Down Achieved Using Dual Input ■ On-Board 1.
5Ω sink (2Ω source) NFET Drivers ■ Up to 30A Ouput Capability ■ Highly Integrated Design, Minimal Components ■ UVLO Detects Both VCC and VIN ■ Short Circuit Protection with Auto-Restart ■ Wide BW Amp Allows Type II or III Compensation ■ Programmable Soft Start ■ Fast Transient Response ■ High Efficiency: Greater than 95% Possible ■ A Synchronous Start-Up into a Pre-Charged Output ■ Small 10-Pin MSOP Package ■ U.
S.
Patent #6,922,041 VCC 1 GL 2 GND 3 VFB 4 COMP 5 SP6132 10 Pin MSOP 10 BST 9 GH 8 SWN 7 SS 6 UVIN Now Available in Lead Free Packaging APPLICATIONS ■ Wireless Base Station ■ Automotive ■ Industrial ■ Power Supply DESCRIPTION The SP6132 is wide input, synchronous step-down switching controller optimized for high efficiency.
The part is designed to be especially attractive for dual supply, 12V step down with 5V used to power the controller.
This lower VCC voltage minimizes power dissipation in the part.
The SP6132 is designed to drive a pair of external NFETs using a fixed 300kHz frequency, PWM voltage mode architecture.
Protection features include UVLO, thermal shutdown and output short circuit protection.
The SP6132 is available in the cost and space saving 10-pin MSOP.
TYPICAL APPLICATION CIRCUIT VCC 8765 QT FDS7088N3 4 21A, 5mΩ 123 C1 22µF 16V C2 22µF 16V C1, C2 Ceramic 1210 X5R VIN 12V GND R3 221k, 1% UVIN R4 100k, 1% DBST MBR0530 CVCC GND 3 10µF 6.
3V CVCC Ceramic 0805 X5R C7 0.
1µF CF1 100pF U1 1 VCC BST 10 2 GL SP6132 GH 9 3 GND SWN 8 4 VFB SS 7 5 COMP UVIN 6 CBST 1µF 10V R5 5.
11, 1% SS L1 SC5018-2R7M 8 7 6 5 2.
7µH @ 12A DCR=4.
30mΩ QB 4 FDS7088N3 21A, 5mΩ 123 C3 47µF 6.
3V C4 47µF 6.
3V CZ2 RZ2 CSS 47nF GND2 1500pF 27.
4k, 1% CP1 22pF fs=300Khz C3, C4 Ceramic 1210 X5R ALL RESISTORS AND CAPS ARE 0603 UNLESS OTHERWISE SPECIFIED Q1, Q2 BOTTOM SIDE DRAIN CONTACT RZ3 4.
64k, 1% CZ3 220pF VOUT 3...


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