SGM61410
1.2MHz, 600mA, 42V
Synchronous Buck Converter
GENERAL DESCRIPTION
FEATURES
The SGM61410 is a high frequency, synchronous Buck
converter with integrated switches. It can deliver up to
600mA to the output over a wide input voltage range of
5V to 42V. It is suitable for various industrial or
automotive applications with high input voltage or for
power conditioning from unregulated sources.
Moreover, the low 14µA quiescent current and ultra-low
shutdown current of only 0.6µA make it a suitable
choice for battery-powered applications.
● Wide 5V to 42V Operating Input Voltage Range
● 0.8V Internal Reference
● Low Quiescent Current: 14μA (TYP)
● Shutdown Current: 0.6μA (TYP)
● Current Output up to 600mA
● 1.2MHz Switching Frequency
● Internal Compensation and Soft-Start
● Simple Design and Minimal External Components
● Up to 95% Efficiency at 12V/400mA
● 0.8V to 24V Adjustable Output Voltage
● Current Limit and Short-Circuit Protection
● Output Over-Voltage Protection and Thermal
Shutdown
SGM61410 features high efficiency over a wide load
range achieved by scaling down the switching frequency
at light loads 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 thanks to the peak-
current mode controller. Switching at 1.2MHz, the
SGM61410 can prevent EMI noise problems, such as
the ones found in AM radio, ADSL and PLC applications.
● Power-Save Mode and PWM Mode Operation
● Monotonic Startup with Pre-biased Output
● 90% Maximum Duty Cycle
● Available in a Green SOT-23-6 Package
● -40℃ to +125℃ Operating Temperature Range
Protection features include current limiting and short-
circuit protection, thermal shutdown with auto recovery
and output over-voltage protection. Frequency fold-back
helps prevent inductor current runaway during startup.
APPLICATIONS
High Voltage Power Conversions
Automotive Systems
SGM61410 is available in a Green SOT-23-6 package.
Industrial Power Systems
Distributed Power Systems
Battery Powered Systems
Power Meters
TYPICAL APPLICATION
1
VIN
2
CIN
10μF
5
1
VIN
EN
BOOT
CBOOT
0.47μF
L
4
2
6
EN
SW
SGM61410
VOUT
5V
10μH to 33μH
COUT
22μF
3
GND
FB
C1
R1
330pF
52.5kΩ
R2
10kΩ
Figure 1. Typical Application Circuit
SG Micro Corp
MARCH 2023 – REV. A. 4
www.sg-micro.com