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參數(shù)資料
| 型號： | L6727TR |
| 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 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 318K |
| 代理商： | L6727TR |
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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6728 | 功能描述:DC/DC 開關(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 |
| L6728AH | 功能描述:軟開關(guān) PWM 控制器 Sgl Output 600 KHz DFPN-10 RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6728AHTR | 功能描述:電流型 PWM 控制器 HIGH FREQ PWM CNTRL W/PO RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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