SP6126EK1L/TR

更新时间： 2024-11-25 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
14页	465K
描述
High-Voltage, Step Down Controller in TSOT6

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SP6126EK1L/TR 数据手册

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SP6126

High-Voltage, Step Down Controller in TSOT6

GND

FEATURES

ꢀ Wide 4.5V – 29V Input Voltage Range

ꢀ Internal Compensation

ꢀ Built-in High Current PMOS Driver

ꢀ Adjustable Overcurrent Protection

ꢀ Internal soft-start

ꢀ 600kHz Constant Frequency Operation

ꢀ 0.6V Reference Voltage

SP6126

6 PinTSOT

ꢀ 1% output setpoint accuracy

ꢀ Lead Free, RoHS Compliant Package:

Small 6-Pin TSOT

GATE

VDR

DESCRIPTION

The SP6126 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 SP6126 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

10uF

Si2343DS

12V

Gate

GND

VOUT

Vin

L1, IHLP-2525CZ

6.8uH, 60mOhm, 4.5A

Rs=1k

0.1uF

22uF

3.3V

0-2.0A

SP6126

Ds RZ

MBRA340T3G 2K

VDR

200k, 1%

62pF

GND

VFB

GND

44.2k, 1%

D1 1N4148

SHDN

High=Off

Mar 29-07 RevD

SP6126: TSOT-6 PFET Buck Controller

 2007 Sipex Corporation

12 3 4 5 6 7...14

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