特性 Features

? Operation Voltage：5V~40V

? Output Adjustable from 1.25V to 35V

? Maximum Duty Cycle up to 100%

? Feedback Voltage Accuracy ±2%

? Fixed 120KHz Switching Frequency

? 4A Constant Output Current Capability

? Internal Optimize Power MOSFET

? High efficiency up to 95%

? Max. Output power up to 30W

? Excellent line and load regulation

? Built in thermal shutdown function

? Built in current limit protection function

? Built in output short protection function

? Temperature Grade 1: -40℃ to 125℃

Ambient Operating Temperature Range

? Device HBM ESD Classification Level

Class3A

? Available in TO252-5L package

General Description

The XL9023 is a 120KHz fixed frequency

PWM synchronous buck DC/DC converter,

capable of driving a 4A load with high

efficiency, low ripple and excellent line and

load regulation. XL9023 supports wide input

operating voltage range of 5V ~ 40V and a

maximum duty cycle of 100% output. A builtin loop compensation module reduces

components in the system, lowering power

system cost and reducing printed circuit

board space.

The XL9023 has built-in thermal shutdown,

current limit protection and output short

protection function and so on. When the

output short protection function happens, the

operation frequency will be reduced about

from 120KHz to 30KHz.

Applications

? Automotive Electronics

? Industrial Control

? Networking Equipment

? Internet of Things