Datasheet > LR2596-ADJ

LR2596-ADJ

更新时间： 2024-11-21 01:06:55

品牌	Logo	应用领域
乐山 - LRC		/
页数	文件大小	规格书
7页	154K
描述
150KHz, 3A PWM Buck DC/DC Converter TTL shutdown capability

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LR2596-ADJ 数据手册

LESHAN RADIO COMPANY, LTD.

LR2596 Series

LR2596

150KHz, 3A PWM Buck DC/DC Converter

Description

The LR2596 is Monolithic IC that design for a step-down DC/DC Converter, and own

the ability of driving a 3A load without additional transistor component. The output

version included 3.3V, 5V, 12V and an adjustable type. It operates at a switching

frequency of 150KHz thus allowing smaller sized filter components than what would

be needed with lower frequency switching regulators. Other features include a

guaranteed ±4% tolerance on output voltage under specified input voltage and

output load conditions, and ±15% on the oscillator frequency. Regarding protected

function, thermal shutdown is to prevent over temperature operating from damage,

and current limit is against over current operating of the output switch.

Features

• 3.3V, 5V, 12V and adjustable

• Adjustable version output voltage range: 1.4-37V

• ±4% max over line and load conditions

• 150KHz ±15% fixed switching frequency

• TTL shutdown capability

1 2 3 4 5

• Operating voltage can be up to 40V

• Output load current: 3A

• TO220-5L and TO263-5L packages

• Low power standby mode

• Thermal-shuntdown and current-limit protection

• High efficiency

• Built-in switching a transistor on chip, requires only 4 external components

Applications

• Simple High-efficiency step-down regulator

• Positive to negative converter

• On-card switching regulators

Connection Diagrams

TO220-5L

Pins 1,3,5

TO263-5L

Pins 2,4

Side

View

Side

View

5 - On/Off

4 - Feed Back

3 - Ground

2 - Output

1 - VIN

5 - On/Off

4 - Feed Back

3 - Ground

2 - Output

1 - VIN

Top

View

Top

View

Metal Tab GND

1/7

12 3 4 5 6 7

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