Datasheet > L6728_0706

L6728_0706

更新时间： 2024-11-30 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
31页	1342K
描述
Single phase PWM controller with Power Good

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中文翻译

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L6728_0706 数据手册

L6728

Single phase PWM controller with Power Good

Features

■ Flexible power supply from 5 V to 12 V

■ Power conversion input as low as 1.5 V

■ 0.8 V internal reference

■ 0.8 % output voltage accuracy

■ High-current integrated drivers

■ Power Good output

DFN10

■ Sensorless and programmable OCP across

low-side R

Description

DS(on)

■ OV / UV protections

L6728 is a single-phase step-down controller with

integrated high-current drivers that provides

complete control logic and protection to realize in

a simple way general DC-DC converters by using

a compact DFN10 package.

■ VSEN disconnection protection

■ Oscillator internally fixed at 300 kHz

■ LSless to manage pre-bias start-up

■ Adjustable output voltage

■ Disable function

Device flexibility allows managing conversions

with power input V as low as 1.5 V and device

supply voltage ranging from 5 V to 12 V.

■ Internal soft-start

■ DFN10 package

L6728 provides simple control loop with voltage

mode EA. The integrated 0.8 V reference allows

regulating output voltages with 0.8 % accuracy

over line and temperature variations. Oscillator is

internally fixed to 300 kHz.

Applications

■ Memory and termination supply

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

■ CPU and DSP power supply

L6728 provides programmable dual level over

current protection as well as over and under

voltage protection. Current information is

monitored across the low-side MOSFET R

saving the use of expensive and space-

consuming sense resistors.

DS(on)

■ Distributed power supply

■ General DC-DC converters

PGOOD output easily provides real-time

information on output voltage status, through

VSEN dedicated output monitor.

Table 1.

Device summary

Order codes

Package

Packaging

L6728

Tube

DFN10

L6728TR

Tape and reel

June 2008

Rev 3

1/31

www.st.com

12 3 4 5 6 7...31

中文翻译

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L6728A	STMICROELECTRONICS	获取价格	High frequency single phase PWM controller with Power Good
L6728AH	STMICROELECTRONICS	获取价格	High frequency single phase PWM controller with Power Good
L6728AHTR	STMICROELECTRONICS	获取价格	High frequency single phase PWM controller with Power Good
L6728ATR	STMICROELECTRONICS	获取价格	High frequency single phase PWM controller with Power Good
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
L6728H	STMICROELECTRONICS	获取价格	Single phase PWM controller with Power Good
L6728HTR	STMICROELECTRONICS	获取价格	Single phase PWM controller with Power Good
L6728TR	STMICROELECTRONICS	获取价格	Single phase PWM controller with PowerGOOD
L6730	STMICROELECTRONICS	获取价格	Adjustable step-down controller with synchronous rectification