SL1509HV 5-48V 2A dc-dc降壓芯片

SL1509HV 5-48V 2A dc-dc降壓芯片

SL1509HV 24V轉(zhuǎn)5V1A 降壓芯片

SL1509HV 36V轉(zhuǎn)5V1A 降壓芯片

SL1509HV 12V轉(zhuǎn)5V1A 降壓芯片

概述：

The SL1509HV is a 150 KHz fixed frequency

PWM buck (step-down) DC/DC converter,

capable of driving a 2A load with high

efficiency, low ripple and excellent line and

load regulation. Requiring a minimum

number of external components, the regulator

is simple to use and include internal

frequency compensation and a

fixed-frequency oscillator.

The PWM control circuit is able to adjust the

duty ratio linearly from 0 to 100%. An enable

function, an over current protection function

is built inside. When second current limit

function happens, the operation frequency

will be reduced from 150KHz to 50KHz. An

internal compensation block is built in to

minimize external component count.

特點：

? Output Voltage: 3.3V, 5V, 12V and Adjustable Output

Version

? Adjustable Version Output Voltage Range, 1.23V to

18V+4%

? 150KHz +15% Fixed Switching Frequency

? Voltage Mode Non-Synchronous PWM Control

? Thermal-Shutdown and Current-Limit Protection

? ON/OFF Shutdown Control Input

? Operating Voltage can be up to 48V

? Output Load Current: 2A

? SOP-8 Packages

? Low Power Standby Mode

? Built-in Switching Transistor On Chip

? SOP-8: Available in “Green” Molding Compound

(No Br, Sb)

? Lead Free Finish/ RoHS Compliant (Note 1)

應(yīng)用領(lǐng)域：

LCD Monitor and LCD TV

Digital Photo Frame

Set-up Box

ADSL Modem

Telecom / Networking Equipment

原理圖：