Datasheet > SGM61232

SGM61232

更新时间： 2023-09-03 20:24:53

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
19页	945K
描述
28V, 3A, Buck DC/DC Converter

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SGM61232 数据手册

SGM61232

28V, 3A, Buck DC/DC Converter

GENERAL DESCRIPTION

FEATURES

The SGM61232 is a current mode controlled non-

synchronous Buck converter with 4V to 28V input range,

3A rated output current and adjustable output voltages

from 0.8V up to 25V. A low R_DSONN-MOSFET is

integrated as high-side switch. Pulse-skip mode (PSM)

feature is activated automatically for power-save mode

at light loads to improve efficiency. Because of its low

shutdown current (1.2μA, TYP), this device can be

used in battery operated applications. The internal

current mode controller with slope compensation allows

ceramic capacitors at the output and simplifies

compensation network design. The UVLO level can be

adjusted (increased) by an external resistor divider.

Protection against over-voltage transient is provided to

limit the startup or other transient overshoots. Secure

operation in overload conditions is ensured by

cycle-by-cycle current limit, frequency fold-back and

thermal shutdown protection.

● 4V to 28V Input Voltage Range

● 0.8V Internal Voltage Reference

● 0.8V to 25V Adjustable Output Voltage Range

● Integrated 77mΩ High-side MOSFET Supports up

to 3A Continuous Output Current

● Fixed 540kHz Switching Frequency

● Typical 1.2μA Shutdown Quiescent Current

● High Light Load Efficiency

● Adjustable Soft-Start to Limit Inrush Current

● Programmable UVLO Threshold

● Over-Voltage Transient Protection

● Cycle-by-Cycle Current Limit

● Frequency Fold-Back Protection

● Thermal Shutdown Protection

● Available in a Green SOIC-8 (Exposed Pad)

Package

APPLICATIONS

The SGM61232 is offered in a Green SOIC-8 (Exposed

Pad) package and can operate in the -40℃ to +125℃

ambient temperature range.

Industrial Power Supplies

Distributed Power Systems

CPE Equipment

Set-Top Boxes

LCD Displays

Battery Chargers

TYPICAL APPLICATION

C_BOOT

V_IN

VIN

BOOT

C_IN

R_EN1

V_OUT

R_EN2

C_OUT

SGM61232

R_OUT1

COMP

C₁

R₃

VSENSE

GND

C_SS

C₂

R_OUT2

Figure 1. Typical Application Circuit

SG Micro Corp

JANUARY 2023 – REV. A. 3

www.sg-micro.com

12 3 4 5 6 7...19

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