Datasheet > SGM61412

SGM61412

更新时间： 2024-09-29 11:11:35

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
21页	1094K
描述
1.2MHz, 1.2A, 42V Synchronous Buck Converter

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SGM61412 数据手册

SGM61412

1.2MHz, 1.2A, 42V

Synchronous Buck Converter

GENERAL DESCRIPTION

FEATURES

The SGM61412 is a high frequency, synchronous Buck

converter with integrated switches. It can deliver up to

1.2A to the output over a wide input voltage range of

4.5V to 42V. It is suitable for various industrial

applications with high input voltage or for power

conditioning from unregulated sources. Moreover, the

low 55µA quiescent current and ultra-low shutdown

current of only 1.2µA make it a suitable choice for

battery-powered applications.

● Wide 4.5V to 42V Input Voltage Range

● Current Output up to 1.2A

● 1.2MHz Switching Frequency

● 0.83V Internal Reference

● SGM61412A:PSM and PWM Mode

● SGM61412B: PFM and PWM Mode

● Low Quiescent Current: 55μA (TYP)

● Ultra-Low Shutdown Current: 1.2μA (TYP)

● 0.83V to 20V Adjustable Output Voltage

● Internal Compensation and Soft-Start

● Precision Enable Function with UVLO Setting

● Monotonic Startup with Pre-biased Output

● Thermal Shutdown Protection

SGM61412 features high efficiency over a wide load

range achieved by scaling down the switching frequency

at light load condition to reduce switching and gate

driving losses. Other features include internal

compensation, internal monotonic soft-start even with

pre-biased output and fast loop response due to the

peak-current mode controller. Switching at 1.2MHz, the

SGM61412 can prevent EMI noise problems, such as

the ones found in AM radio, ADSL and PLC applications.

● Available in a Green TSOT-23-6 Package

● -40℃ to +125℃ Operating Temperature Range

APPLICATIONS

High Voltage Power Conversions

Industrial Power Systems

Protection features include current limit and short-circuit

protection, thermal shutdown with auto recovery and

output over-voltage protection. Frequency fold-back helps

prevent inductor current runaway during startup.

Distributed Power Systems

Battery Powered Systems

Power Meters

The SGM61412 is available in a Green TSOT-23-6

package. It operates over a wide ambient temperature

range of -40℃ to +125℃.

TYPICAL APPLICATION

V_IN

VIN

BOOT

C₂

0.1μF

C_BOOT

0.1μF

C_IN

10μF

SGM61412

V_OUT

GND

4.7μH to 10μH

C_OUT

22μF

C₁

R₁

49.9kΩ

56pF

R₂

10kΩ

Figure 1. Typical Application Circuit

SG Micro Corp

MAY 2022–REV. A. 2

www.sg-micro.com

12 3 4 5 6 7...21

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与SGM61412相关器件

型号	品牌	获取价格	描述	数据表
SGM61413	SGMICRO	获取价格	570kHz, 600mA, 42V Synchronous Buck Converter
SGM61430	SGMICRO	获取价格	4.5V to 36V Input, 3A, Synchronous Buck Converter
SGM61432	SGMICRO	获取价格	40V/3.5A, Adjustable Switching Frequency Buck
SGM61433	SGMICRO	获取价格	4.5V to 42V Input, 3.5A Buck Converter
SGM61450	SGMICRO	获取价格	4.5V to 42V Input, 5A Buck Converter
SGM61630	SGMICRO	获取价格	60V, 3A Buck Converter with 50μA IQ
SGM61720	SGMICRO	获取价格	High Efficiency, 2.5A, 60V Input Synchronous Buck Converter
SGM620	SGMICRO	获取价格	Low Power, Low Noise, Rail-to-Rail Output, Instrumentation Amplifier
SGM621	SGMICRO	获取价格	Low Power, Low Noise, Rail-to-Rail Output, Instrumentation Amplifier
SGM62180	SGMICRO	获取价格	4.5V to 15V, 6A Two-Phase Synchronous Buck Converter

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