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參數資料
型號: L6726ATR
廠商: 意法半導體
英文描述: Single phase PWM controller
中文描述: 單相PWM控制器
文件頁數: 1/24頁
文件大小: 399K
代理商: L6726ATR
October 2006
Rev 2
1/24
24
L6726A
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
0.8V internal reference
Sensorless and programmable OCP across
Low-side R
dsON
Oscillator internally fixed at 270kHz
Programmable soft-start
LS-LESS start up
Disable function
FB disconnection protection
SO-8 package
Applications
Subsystem power supply (MCH, IOCH, PCI...)
Memory and termination Supply
CPU & DSP power supply
Distributed power supply
General DC / DC converters
Order codes
Description
L6726A 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.
Device flexibility allows managing conversions
with power input V
IN
as low as 1.5V and device
supply voltage ranging from 5V to 12V.
L6726A provides simple control loop with trans-
conductance error amplifier. The integrated 0.8V
reference allows regulating output voltage with
±1% accuracy over line and temperature
variations. Oscillator is internally fixed to 270kHz.
L6726A provides programmable over current
protection. Current information is monitored
across the Low-Side mosfet R
dsON
saving the use
of expensive and space-consuming sense
resistors.
FB disconnection protection prevents excessive
and dangerous output voltages in case of floating
FB pin.
SO-8
Part Number
Package
Packing
L6726A
SO-8
Tube
L6726ATR
SO-8
Tape & Reel
www.st.com
相關PDF資料
PDF描述
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L6730C Adjustable step-down controller with synchronous rectification
L6730CQTR Adjustable step-down controller with synchronous rectification
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