L6727

更新时间： 2024-10-02 03:49:55

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		控制器
页数	文件大小	规格书
22页	460K
描述
Single phase PWM controller

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L6727 数据手册

L6727

Single phase PWM controller

Feature

■ Flexible power supply from 5V to 12V

■ Power conversion input as low as 1.5V

■ 1% output voltage accuracy

■ High-current integrated drivers

■ Adjustable output voltage

SO-8

■ 0.8V internal reference

■ Simple voltage mode control loop

■ Sensorless and programmable OCP across

Description

L6727 is a single-phase step-down controller with

integrated high-current drivers that provides

complete control logic, protections and reference

voltage to realize in an easy and simple way

general DC-DC converters by using a compact

SO-8 package.

Low-Side R

dsON

■ Oscillator internally fixed at 300kHz

■ Internal Soft-Start

■ LS-LESS to manage pre-bias start-up

■ Disable function

Device flexibility allows managing conversions

■ OV / UV protection

with power input V as low as 1.5V and device

supply voltage in the range of 5V to 12V.

■ FB disconnection protection

■ SO-8 package

L6727 provides simple control loop with voltage-

mode error-amplifier. The integrated 0.8V

reference allows regulating output voltages with

1% accuracy over line and temperature

Applications

variations. Oscillator is internally fixed to 300kHz.

L6727 provides programmable over current

protection as well as over and under voltage

protection. Current information is monitored

■ Subsystem power supply (MCH, IOCH, PCI...)

■ Memory and termination supply

■ CPU & DSP power supply

across the Low-Side mosfet R

saving the use

dsON

of expensive and space-consuming sense

resistors while output voltage is monitored

through FB pin.

■ Distributed power supply

■ General DC / DC converters

FB disconnection protection prevents excessive

and dangerous output voltages in case of floating

FB pin.

Table 1.

Device summary

Part Number

Package

Packaging

L6727

SO-8

Tube

L6727TR

Tape & Reel

June 2007

Rev 3

1/22

www.st.com

12 3 4 5 6 7...22

中文翻译

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L6727 替代型号

型号	品牌	替代类型	描述	数据表
L6727TR	STMICROELECTRONICS	类似代替	Single phase PWM controller

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L6728D	STMICROELECTRONICS	获取价格	Single-phase PWM controller with Power Good
L6728DTR	STMICROELECTRONICS	获取价格	Single-phase PWM controller with Power Good