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reference designSGM61235C | Demoboard SGM61235CEVM

SG-Micro SGM61235C | Demoboard SGM61235CEVM

8V to 28V Input (12V TYP), 5V/3A Output

Overview

TopologyBuck Converter
Input voltage8-28 V
Output 15 V / 3 A
IC revision00

Description

The SGM61235C is an adaptive constant on-time control (ACOT) synchronous Buck converter with a wide input voltage range of 4.5V to 28V. This device has 3A output current capability and operates at pseudo-fixed frequency. It is an easy-to-use device with power switches and internal compensation circuit, which are all integrated in a small 6-pin package, and supports low equivalent series resistance (ESR) output capacitors. A typical 3.5ms soft-start ramp is also included to minimize the inrush current. Protection features include cycle-by-cycle current limit, hiccup current-protection mode, output over-voltage protection and thermal shutdown in case of excessive power dissipation. The SGM61235C enters pulse-skip mode (PSM) to improve efficiency during light load operation. The SGM61235C is available in a Green TSOT-23-6 package.

Features

  • Wide 4.5V to 28V Input Voltage Range
  • 0.594V to 7V Output Voltage Range
  • 3A Continuous Output Current
  • Integrated 62mΩ/32mΩ Power MOSFETs
  • Low Quiescent Current: 45μA (TYP)
  • Shutdown Current: 2.5μA (TYP)
  • 3.5ms Internal Soft-Start Time
  • Pseudo-Fixed 700kHz Switching Frequency
  • Adaptive Constant On-Time Mode Control
  • Pulse-Skip Mode
  • Hiccup Current-Protection Mode
  • Output Over-Voltage Protection
  • Adjustable Input Under-Voltage Lockout
  • Thermal Shutdown with Auto Recovery
  • Available in a Green TSOT-23-6 Package

Typical applications

  • Industrial and Consumer Applications
  • 12V Distributed Power Supply Buses
  • White Goods, Digital Television Printers

More information

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Data­sheet
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Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Mount
SamplesAvailability & Sample
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74437349047
SPECWE-LHMI SMT Power Inductor, 4.7 µH, 6.2 A
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Downloads9 files

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance4.7 µH
Performance Rated Current6.2 A
Saturation Current @ 10%7.5 A
Saturation Current @ 30%14.6 A
DC Resistance30.8 mΩ
Self Resonant Frequency24 MHz
MountSMT 
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