Datasheet > P1580

P1580

更新时间： 2024-11-01 10:17:39

品牌	Logo	应用领域
友顺 - UTC		稳压器开关
页数	文件大小	规格书
6页	278K
描述
380KHz, 2.5A STEP-DOWN SWITCHING REGULATOR

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P1580 数据手册

UNISONIC TECHNOLOGIES CO., LTD

P1580

LINEAR INTEGRATED CIRCUIT

380KHz, 2.5A STEP-DOWN

SWITCHING REGULATOR

DESCRIPTION

The UTC P1580 is a current mode, PWM controller with 380kHz

fixed frequency. It achieves 2.5A continuous output current over a

wide input supply range with excellent load and line regulation. By

using an external compensation pin, this device offers user flexibility

in determining loop dynamic.

The UTC P1580 integrates control, monitor and protection

functions to provide a low cost and perfect power solution. The

device provides 3.5 to 28V wide range operating input and

high-efficiency up to 90%.

An Under- Voltage-Lock-Output (UVLO) circuit monitors the

supply voltage to prevent from wrong logic control. An internal

1.222V reference voltage provides low output voltage down to 1.22V

for further applications. The over-current protection of controller

monitors the output current by using the voltage drop across a

current sensing resistor. Additional under voltage protection monitors

the voltage on FB pin for short-circuits protection.

The UTC P1580 provides fast transient response and requires

very few external devices for operation.

FEATURES

* 2.5A Output Current

* 380kHz Frequency of Operation

* 3.5V to 28V Input Voltage Range

* 5μA Shutdown Supply Current

* Output Adjustable From 1.22 to 21

* Frequency Feedback at Short Circuit

* Thermal Shutdown

* Under Voltage Lock Output

* Current Mode With Low ESR Output Ceramic Capacitors

* Up to 90% Efficiency

* Frequency Synchronization Input

ORDERING INFORMATION

Ordering Number

P1580G-SH2-R

Package

HSOP-8

Packing

Tape Reel

www.unisonic.com.tw

1 of 6

QW-R103-049.A

12 3 4 5 6

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