Datasheet > LM5575_09

LM5575_09

更新时间： 2024-11-07 05:42:23

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
22页	436K
描述
SIMPLE SWITCHER 75V, 1.5A Step-Down Switching Regulator

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LM5575_09 数据手册

March 23, 2009

LM5575/LM5575Q

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

Regulator

General Description

Features

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^®On-Line design tools.

LM5575Q is an Automotive Grade product that is AEC-

■

Q100 grade 1 qualified (−40°C to + 125°C operating

junction temperature)

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

Automotive Grade product datasheet that is AEC-Q100

grade 0 qualified is available upon request.

(−40°C to + 150°C operating junction temperature)

Package

TSSOP-16EP (Exposed Pad)

■

Applications

Automotive

■

Industrial

Simplified Application Schematic

20208801

WEBENCH^®is a registered trademark of National Semiconductor Corporation.

202088

www.national.com

12 3 4 5 6 7...22

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与LM5575_09相关器件

型号	品牌	获取价格	描述	数据表
LM5575BLDT/NOPB	TI	获取价格	暂无描述
LM5575MDC	TI	获取价格	IC,SMPS CONTROLLER,CURRENT-MODE,DIE
LM5575MH	NSC	获取价格	75V, 1.5A Step-Down Switching Regulator
LM5575MH	NAIS	获取价格	SIMPLE SWITCHER 75V,1.5A STEP-DOWN SWITCHING
LM5575MH	TI	获取价格	6V 至 75V、1.5A 宽输入电压降压稳压器 \| PWP \| 16 \| -40 to
LM5575MH/NOPB	NSC	获取价格	IC 1.5 A SWITCHING REGULATOR, 545 kHz SWITCHING FREQ-MAX, PDSO16, LEAD FREE, TSSOP-16, Swi
LM5575MH/NOPB	TI	获取价格	6V 至 75V、1.5A 宽输入电压降压稳压器 \| PWP \| 16 \| -40 to
LM5575MHX	NSC	获取价格	75V, 1.5A Step-Down Switching Regulator
LM5575MHX	TI	获取价格	LM5575/LM5575Q SIMPLE SWITCHER 75V, 1.5A Step-Down Switching Regulator
LM5575MHX/NOPB	TI	获取价格	6V 至 75V、1.5A 宽输入电压降压稳压器 \| PWP \| 16 \| -40 to

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