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HSW-EUP3289_ver1

消耗积分:0 | 格式:pdf | 大小:773.68 KB | 2024-03-22

深圳市华升微电子有限公司

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DESCRIPTION

The EUP3289 is a 60V, 5A, step down regulator with

an integrated high side MOSFET. The EUP3289

adopting the peak current mode control, supports the

PSM mode which assists the converter on achieving

high efficiency at light load or standby condition.

The EUP3289 features programmable switching

frequency from 100 kHz to 2MHz with an external

resistor, which provides the flexibility to optimize either

efficiency or external component size. The converter

supports external clock synchronization with a

frequency band from 160 kHz to 2MHz. The EUP3289

allows power conversion from high input voltage to low

output voltage with a minimum 130ns on-time of high

side MOSFET.

Fault protection includes secondary cycle-by-cycle

current limit, short circuit protection and thermal

shutdown. Internal soft-start minimizes the inrush

supply current and the output overshoot at initial startup.

The EUP3289 is available in an 8-pin SOP-8(EP)

package.

Typical Application Circuit

FEATURES

Wide Input Voltage Range: 4.5V to 60V

High Efficiency at Light Loads with PSM

Mode

150µA Operating Quiescent Current

3µA Shutdown Current

100kHz to 2MHz Fixed Switching Frequency

Synchronizes to External Clock

Adjustable UVLO Voltage and Hysteresis

0.8V 1% Internal Voltage Reference

Internal Soft-start

Short Circuit Protection

Thermal Shutdown

SOP-8(EP) Package

APPLICATIONS

Vehicle Accessories : GPS, Entertainment

12-V, 24-V, 48-V Industrial, Automotive

and Communications Power Systems

USB Dedicated Charging Ports and Battery

Chargers

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