Datasheet > SGM61030

SGM61030

更新时间： 2023-09-03 20:25:02

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
19页	1252K
描述
3A High Efficiency Synchronous Buck Converter

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SGM61030 数据手册

SGM61030

3A High Efficiency

Synchronous Buck Converter

GENERAL DESCRIPTION

FEATURES

The SGM61030 is a high efficiency and miniature size

synchronous Buck converter for low input voltage

applications. This high frequency device does not need

external compensation and is a perfect solution for

compact designs. The 2.5V to 5.5V input voltage range

is suitable for almost all available battery chemistries.

For the SGM61030A version, to keep the high

efficiency in the whole load range, the device operates

in pulse width modulation (PWM) mode at normal load

and automatically enters the power-save mode (PSM)

at light loads. For the SGM61030B version, the device

operates in continuous current mode (CCM) at light and

heavy loads.

● 2.5V to 5.5V Input Voltage Range

● Adjustable Output Voltage from 0.6V to V_IN

● Adaptive Off-Time Architecture

● Up to 95% Efficiency

● Low R_DSONMOSFET Switches (34mΩ/20mΩ)

● 42μA (TYP) Operating Quiescent Current

● Ultra-Low Quiescent Current in Shutdown Mode

● Power-Save Mode at Light Loads (SGM61030A)

● Continuous Current Mode (SGM61030B)

● 100% Duty Cycle Capability for Low Dropout

● Startup with Pre-biased Output

● Output Discharge Function

● Power Good Output

● Hiccup Mode Short-Circuit Protection

● Thermal Shutdown Protection

This device is based on an adaptive off-time

architecture, but still allows a wide range of output

capacitors from 22μF to 150μF and even more. This

flexibility makes the device a good choice for system

power rails supplies. The adaptive off-time architecture

provides excellent output voltage accuracy and superb

load transient response.

● Available in a Green TDFN-2×2-7L Package

APPLICATIONS

Battery-Powered Applications

Point-of-Load

The SGM61030 is available in a Green TDFN-2×2-7L

package.

Processor Power Supplies

Hard Disk Drives (HDD)/Solid State Drives (SSD)

TYPICAL APPLICATION

L₁

0.47μH

V_OUT

1.8V

V_IN

VIN

C₃

22μF

C₄

22μF

R₁

200kΩ

C₂

6pF

2.5V to 5.5V

C₁

10μF

SGM61030

R₃

1MΩ

R₂

100kΩ

GND

Power Good

Figure 1. SGM61030 Typical Application Circuit

SG Micro Corp

SEPTEMBER 2022 – REV. A. 1

www.sg-micro.com

12 3 4 5 6 7...19

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