Datasheet > SP6125EK1L/TR1

SP6125EK1L/TR1

更新时间： 2024-11-21 02:54:43

品牌	Logo	应用领域
西伯斯 - SIPEX		控制器
页数	文件大小	规格书
12页	524K
描述
High-Voltage, Step Down Controller in TSOT6

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SP6125EK1L/TR1 数据手册

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SP6125

High-Voltage, Step Down Controller in TSOT6

FEATURES

ꢀ Wide 4.5V – 29V Input Voltage Range

ꢀ Internal Compensation

GND

ꢀ Built-in High Current PMOS Driver

ꢀ Adjustable Overcurrent Protection

ꢀ Internal soft-start

ꢀ 300kHz Constant Frequency Operation

ꢀ 0.6V Reference Voltage

SP6125

6 PinTSOT

ꢀ 1% output setpoint accuracy

ꢀ Lead Free, RoHS Compliant Package:

Small 6 pin TSOT

VIN

GATE

VDR

DESCRIPTION

The SP6125 is a PWM controlled step down (buck) voltage mode regulator with VIN feedforward and

internal Type-II compensation. It operates from 4.5V to 29V, making is suitable for 5V, 12V, and 24V

applications. By using a PMOS driver, this device is capable of operating at 100% duty cycle. The

high side driver is designed to drive the gate 5V below VIN. The programmable overcurrent

protection is based on high-side MOSFET’s ON resistance sensing and allows setting the

overcurrent protection value up to 300mV threshold (measured from VIN-LX). The SP6125 is

available in a space-saving 6-pin TSOT package making it the smallest controller available capable

of operating from 24VDC supplies.

TYPICAL APPLICATION CIRCUIT

VIN

4.7uF

24-29 V

FDS4685

Gate

GND

VOUT

Vin

L1, IHLP-2525CZ

8.2uH, 68mOhm, 4A

Rs 2k

0.1uF

22uF

3.3V

0-3A

SP6125

Ds RZ

MBRA340T3G 2K

200k, 1%

VDR

100pF

GND

VFB

GND

44.2k, 1%

D1 1N4148

SHDN

High=Of f

Mar22-07 RevC

SP6125: TSOT-6 PFET Buck Controller

 2007 Sipex Corporation

12 3 4 5 6 7...12

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