LM2727

更新时间： 2024-10-27 22:51:55

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器控制器
页数	文件大小	规格书
22页	597K
描述
N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM2727 数据手册

June 2003

LM2727/LM2737

N-Channel FET Synchronous Buck Regulator Controller

for Low Output Voltages

General Description

Features

n Input power from 2.2V to 16V

The LM2727 and LM2737 are high-speed, synchronous,

switching regulator controllers. They are intended to control

currents of 0.7A to 20A with up to 95% conversion efficien-

cies. The LM2727 employs output over-voltage and under-

voltage latch-off. For applications where latch-off is not de-

sired, the LM2737 can be used. Power up and down

sequencing is achieved with the power-good flag, adjustable

soft-start and output enable features. The LM2737 and

LM2737 operate from a low-current 5V bias and can convert

from a 2.2V to 16V power rail. Both parts utilize a fixed-

frequency, voltage-mode, PWM control architecture and the

switching frequency is adjustable from 50kHz to 2MHz by

adjusting the value of an external resistor. Current limit is

achieved by monitoring the voltage drop across the on-

resistance of the low-side MOSFET, which enhances low

duty-cycle operation. The wide range of operating frequen-

cies gives the power supply designer the flexibility to fine-

tune component size, cost, noise and efficiency. The adap-

tive, non-overlapping MOSFET gate-drivers and high-side

bootstrap structure helps to further maximize efficiency. The

high-side power FET drain voltage can be from 2.2V to 16V

and the output voltage is adjustable down to 0.6V.

n Output voltage adjustable down to 0.6V

n Power Good flag, adjustable soft-start and output enable

for easy power sequencing

n Output over-voltage and under-voltage latch-off

(LM2727)

n Output over-voltage and under-voltage flag (LM2737)

n Reference Accuracy: 1.5% (0˚C - 125˚C)

n Current limit without sense resistor

n Soft start

n Switching frequency from 50 kHz to 2 MHz

n TSSOP-14 package

Applications

n Cable Modems

n Set-Top Boxes/ Home Gateways

n DDR Core Power

n High-Efficiency Distributed Power

n Local Regulation of Core Power

Typical Application

20049410

DS200494

www.national.com

12 3 4 5 6 7...22

中文翻译

下载PDF

与LM2727相关器件

型号	品牌	获取价格	描述	数据表
LM2727_16	TI	获取价格	LM2727/LM2737 N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages
LM2727MTC	TI	获取价格	LM2727/LM2737 N-Channel FET Synchronous Buck Regulator Controller for Low Output
LM2727MTC/NOPB	TI	获取价格	2.2 - 16V input, 2MHz, N-Channel FET synchronous buck controller w output over V &
LM2727MTC/NOPB	NSC	获取价格	IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, TSSOP-14, Switching
LM2727MTCX	TI	获取价格	LM2727/LM2737 N-Channel FET Synchronous Buck Regulator Controller for Low Output
LM2727MTCX/NOPB	NSC	获取价格	IC SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, TSSOP-14, Switching
LM2727MTCX/NOPB	TI	获取价格	LM2727/LM2737 N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages
LM272D	STMICROELECTRONICS	获取价格	DUAL POWER OPERATIONAL AMPLIFIER
LM272M	STMICROELECTRONICS	获取价格	DUAL POWER OPERATIONAL AMPLIFIER
LM27-2PLMDA	NSC	获取价格	【3∑C Accurate, 120∑C-150∑C Factory Preset The

与LM2727相关文章

三星深化印度制造布局，供应链本地化进程加速
2024-10-29

12
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

11
纳微科技震撼发布GaNSlim革新氮化镓功率芯片
2024-10-18

38
意法半导体发布第四代SiC技术，助力电动汽车电驱
2024-10-15

46

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2727

LM2727 数据手册

与LM2727相关器件

与LM2727相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2727

LM2727 数据手册

与LM2727相关器件

与LM2727相关文章

您还可以找

您在本页遇到什么问题？