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SP6127EK1-L/TR

更新时间： 2024-11-21 06:13:07

品牌	Logo	应用领域
艾科嘉 - EXAR		控制器
页数	文件大小	规格书
12页	337K
描述
High-Voltage, Step-Down Controller in TSOT6

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中文翻译

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数据手册

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SP6127EK1-L/TR 数据手册

SP6127

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

ꢀ 900kHz Constant Frequency Operation

ꢀ 0.6V Reference Voltage

ꢀ 1% output setpoint accuracy

ꢀ Lead Free, RoHS Compliant Package:

Small 6-pin TSOT

SP6127

6 PinTSOT

GATE

VDR

__________________________________________________________ DESCRIPTION

The SP6127 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 VIN, making it 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 the high-side MOSFET’s ON resistance sensing and allows setting the overcurrent protection

value up to 300mV threshold (measured between VIN-LX). The SP6127 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

12V

Si2343DS

Gate

GND

Vin

L1, IHLP-2525CZ

3.3uH, 30mOhm, 6A

Rs=1k

VOUT

0.1uF

22uF

SP6127

1.8V

0-2.0A

MBRA340T3G 2K

VDR

200k, 1%

33pF

GND

VFB

GND

100k, 1%

D1 1N4148

SHDN

High=Off

Jan28-08 RevE

SP6127 TSOT-6 PFET Buck Controller

Page 1

 2007 Exar Corporation

12 3 4 5 6 7...12

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