LM2727MTC National Semiconductor, LM2727MTC Datasheet

LM2727MTC

Manufacturer Part Number

LM2727MTC

Description

IC,SMPS CONTROLLER,VOLTAGE-MODE,BICMOS,TSSOP,14PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheet

1.LM2727MTC.pdf (22 pages)

Specifications of LM2727MTC

Rohs Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM2727MTC

Manufacturer:

Quantity:

544

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM2727MTC/NOPB

Manufacturer:

TI/德州仪器

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM2727MTCX

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM2727MTCX/NOPB

Manufacturer:

FUJITSU

Quantity:

6 219

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM2727MTCX/NOPB

Manufacturer:

NS/国半

Quantity:

20 000

Current page: 1 of 22
Download datasheet (603Kb)

LM2727/LM2737

N-Channel FET Synchronous Buck Regulator Controller

for Low Output Voltages

General Description

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.

Typical Application

DS200494

Features

n Input power from 2.2V to 16V

n Output voltage adjustable down to 0.6V

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

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

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

for easy power sequencing

(LM2727)

20049410

www.national.com

June 2003

Related parts for LM2727MTC

Related keywords

LM2727MTC datasheet
LM2727MTC data sheet
LM2727MTC pdf datasheet
LM2727MTC component
LM2727MTC part
LM2727MTC distributor
LM2727MTC RoHS
LM2727MTC datasheet download