LM5575MHX National Semiconductor, LM5575MHX Datasheet

LM5575MHX

Manufacturer Part Number

LM5575MHX

Description

IC,SMPS CONTROLLER,CURRENT-MODE,TSSOP,16PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheets

1.LM5575MHX.pdf (22 pages)

2.LM5575MHX.pdf (22 pages)

3.LM5575MHX.pdf (24 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM5575MHX

Manufacturer:

NS/国半

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LM5575MHX/NOPB

Manufacturer:

TI/德州仪器

Quantity:

20 000

Company:

Amily Shenzhen XNWY Technology Co., Ltd

Part Number:

LM5575MHX/NOPB

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LM5575

SIMPLE SWITCHER® 75V, 1.5A Step-Down Switching

Regulator

General Description

The LM5575 is an easy to use SIMPLE SWITCHER® buck

regulator which allows design engineers to design and opti-

mize a robust power supply using a minimum set of compo-

nents. Operating with an input voltage range of 6 - 75V, the

LM5575 delivers 1.5A of continuous output current with an

integrated 330mΩ N-Channel MOSFET. The regulator uti-

lizes an Emulated Current Mode architecture which provides

inherent line regulation, tight load transient response, and

ease of loop compensation without the usual limitation of low-

duty cycles associated with current mode regulators. The

operating frequency is adjustable from 50kHz to 500kHz to

allow optimization of size and efficiency. To reduce EMI, a

frequency synchronization pin allows multiple IC’s from the

LM(2)557x family to self-synchronize or to synchronize to an

external clock. The LM5575 guarantees robustness with cy-

cle-by-cycle current limit, short-circuit protection, thermal

shut-down, and remote shut-down. The device is available in

a power enhanced TSSOP-16 package featuring an exposed

die attach pad for thermal dissipation. The LM5575 is sup-

ported by the full suite of WEBENCH

Simplified Application Schematic

WEBENCH

is a registered trademark of National Semiconductor Corporation.

On-Line design tools.

202088

Features

■

Package

■

Integrated 75V, 330mΩ N-channel MOSFET

Ultra-wide input voltage range from 6V to 75V

Adjustable output voltage as low as 1.225V

1.5% feedback reference accuracy

Operating frequency adjustable between 50kHz and

500kHz with single resistor

Master or slave frequency synchronization

Adjustable soft-start

Emulated current mode control architecture

Wide bandwidth error amplifier

Built-in protection

TSSOP-16EP (Exposed Pad)

20208801

www.national.com

March 2007

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