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参数资料
| 型号： | L6727TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | LEAD FREE, SOP-8 |
| 文件页数： | 1/34页 |
| 文件大小： | 974K |
| 代理商： | L6727TR |
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March 2010
Doc ID 12933 Rev 4
1/34
34
L6727
Single phase PWM controller
Feature
■ Flexible power supply from 5 V to 12 V
■ Power conversion input as low as 1.5 V
■ 1 % output voltage accuracy
■ High-current integrated drivers
■ Adjustable output voltage
■ 0.8 V internal reference
■ Simple voltage mode control loop
■ Sensorless and programmable OCP across
Low-side RdsON
■ Oscillator internally fixed at 300 kHz
■ 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 and 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 VIN as low as 1.5 V and device
supply voltage in the range of 5 V to 12 V.
L6727 provides simple control loop with voltage-
mode error-amplifier. The integrated 0.8 V
reference allows regulating output voltages with
±1 % accuracy over line and temperature
variations. Oscillator is internally fixed to 300 kHz.
L6727 provides programmable over current
protection as well as over and under voltage
protection. Current information is monitored
across the low-side MOSFET RdsON 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
Order codes
Package
Packaging
L6727
SO-8
Tube
L6727TR
Tape and reel
相关PDF资料 |
PDF描述 |
|---|---|
| L6727 | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| L6728AHTR | SWITCHING CONTROLLER, PDSO10 |
| L6730DTR | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730D | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6730CQTR | 20 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, QCC24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6728 | 功能描述:DC/DC 开关控制器 Sngl phase PWM controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6728_0706 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single phase PWM controller with Power Good |
| L6728A | 功能描述:电压模式 PWM 控制器 Hi-Freq. singl-phase PWM controller w/Po RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| L6728AH | 功能描述:软开关 PWM 控制器 Sgl Output 600 KHz DFPN-10 RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6728AHTR | 功能描述:电流型 PWM 控制器 HIGH FREQ PWM CNTRL W/PO RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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