LM2576S

更新时间： 2024-11-14 22:57:31

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器开关
页数	文件大小	规格书
19页	441K
描述
1A & 3A Miniconverter Switching Regulators

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LM2576S 数据手册

LM2575 & LM2576

1A & 3A Miniconverter

Switching Regulators

POWER MANAGEMENT

Description

Features

The LM2575/6 series switching regulators are monolithic

integrated circuits designed for use in buck or buck/

boost regulator applications requiring accurate output

voltages over combined variations of line, load and

temperature. This unique series greatly simplifies

switching power supply design. The LM2575 has a

maximum output current of 1A and the LM2576 is rated

for 3A.

u Pin for pin replacement for Nationals LM2575/6

series

u DC-to-DC buck or buck/boost converter requiring

only 4 support components

u Fixed or adjustable voltages

u Preset output voltages of 3.3V, 5V and 12V

u Wide output voltage range, 1.23V to 35V

u 82% typical efficiency @ 5V out

u Wide input voltage range, 4V to 40V

u Inhibit/enable control pin

The LM2575/6 series miniconverters include a

switching regulator and compensation network all within

the same package. Just add a choke, catch diode and

two capacitors to obtain an efficient DC-to-DC converter.

The current limit and thermal shutdown features of the

LM2575/6 series fully protect the device against

overstress conditions.

u Industrial temperature range

u TO-220 and TO-263 packages

Applications

u Micro controller power supplies

u Medical equipment

u Industrial power supplies

u Instrumentation power supplies

The LM2575/6 series offers an alternative to popular 3

terminal linear regulators by providing higher efficiency

with reduced heatsink size. In many applications a heat

sink will not be required.

Typical Application Circuits

LM2575 LM2576

L₁

D₁

330µH

100µH

C_IN

68µF

120µF

C_OUT330µF 1,000µF

Revision 1, January 2001

www.semtech.com

12 3 4 5 6 7...19

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与LM2576S相关器件

型号	品牌	获取价格	描述	数据表
LM2576S-12	NSC	获取价格	SIMPLE SWITCHER 3A Step-Down Voltage Regulator
LM2576S-12	TI	获取价格	SIMPLE SWITCHERÂ® 3A Step-Down Voltage Regula
LM2576S-12	SEMTECH	获取价格	Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, BIPolar, PSSO5, TO-263,
LM2576S-12	UMW	获取价格	DC-DC芯片
LM2576S-12.TR	SEMTECH	获取价格	Analog IC
LM2576S-12.TRT	SEMTECH	获取价格	Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN
LM2576S-12/NOPB	TI	获取价格	LM2576/LM2576HV Series SIMPLE SWITCHERÂ® 3A S
LM2576S-12TR	SEMTECH	获取价格	1A & 3A Miniconverter Switching Regulators
LM2576S-12TRT	SEMTECH	获取价格	暂无描述
LM2576S-15	NSC	获取价格	SIMPLE SWITCHER 3A Step-Down Voltage Regulator