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參數(shù)資料
型號(hào): L6727
廠商: 意法半導(dǎo)體
英文描述: Single phase PWM controller
中文描述: 單相PWM控制器
文件頁(yè)數(shù): 1/22頁(yè)
文件大小: 318K
代理商: L6727
June 2007
Rev 3
1/22
1
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
0.8V internal reference
Simple voltage mode control loop
Sensorless and programmable OCP across
Low-Side R
dsON
Oscillator internally fixed at 300kHz
Internal Soft-Start
LS-LESS to manage pre-bias start-up
Disable function
OV / UV protection
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
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.
Device flexibility allows managing conversions
with power input V
IN
as low as 1.5V and device
supply voltage in the range of 5V to 12V.
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
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
across the Low-Side mosfet R
dsON
saving the use
of expensive and space-consuming sense
resistors while output voltage is monitored
through FB pin.
FB disconnection protection prevents excessive
and dangerous output voltages in case of floating
FB pin.
SO-8
Table 1.
Device summary
Part Number
Package
Packaging
L6727
SO-8
Tube
L6727TR
SO-8
Tape & Reel
www.st.com
相關(guān)PDF資料
PDF描述
L6727TR Single phase PWM controller
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6727_10 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single phase PWM controller
L6727TR 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 Single PWM controler RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
L6728 功能描述:DC/DC 開(kāi)關(guān)控制器 Sngl phase PWM controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6728_0706 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single phase PWM controller with Power Good
L6728A 功能描述:電壓模式 PWM 控制器 Hi-Freq. singl-phase PWM controller w/Po RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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