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reference designSGM61032B | Demoboard SGM61032BEVM

SG-Micro SGM61032B | Demoboard SGM61032BEVM

Low Voltage 3A High Efficiency Synchronous Buck Converter

Overview

TopologyBuck Converter
Input voltage2.5-5.5 V
Output 11.8 V / 3 A
IC revision00

Description

The SGM61032 is a high efficiency and miniature size synchronous Buck converter for low input voltage applications. It is a perfect solution for compact designs. The 2.5V to 5.5V input voltage range is suitable for almost all available battery-powered applications. It operates in PWM mode at 1.5MHz (TYP) in the medium to heavy load range and automatically enters or exits the power-save mode (PSM) at light loads to maintain its high efficiency. During shutdown, the quiescent current is 0.02μA (TYP).This device is based on an adaptive off-time architecture, but still allows a wide range of output capacitors from 10μF to 150μF and even more. This flexibility makes the device a good choice for system power rails supply. It also supports 100% duty cycle operation and enters path-through mode (PTM) when certain conditions are met. At this mode, the quiescent current is reduced to 32μA. The adaptive off-time architecture provides excellent output voltage accuracy and superb load transient response. Only external feedforward compensation capacitor is needed to obtain faster response.The SGM61032 is available in a Green SOT-563-6 package.

Features

  • 2.5V to 5.5V Input Voltage Range
  • Adjustable Output Voltage from 0.6V to VIN
  • Adaptive Off-Time Architecture
  • Up to 95% Efficiency
  • Low RDSON Internal Switches: 55mΩ/25mΩ
  • 42μA Quiescent Current
  • 32μA Quiescent Current in Path-Through Mode
  • Power-Save Mode at Light Load
  • Low Dropout with 100% Duty Cycle
  • PG Output (Except for the SGM61032A)
  • Internal Soft-Start with Pre-biased Startup
  • Output Discharge at Shutdown
  • Hiccup Mode OCP/Short-Circuit Protection
  • Thermal Shutdown Protection
  • Available in a Green SOT-563-6 Package

Typical applications

  • Set-Top Boxes, Multi-Function Printers
  • Industrial and Commercial Applications
  • General Purpose Point-of-Load Power Supplies
  • Potable Battery-Powered Applications

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
SamplesAvailability & Sample
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74438356010
SPECWE-MAPI SMT Power Inductor, 1 µH, 10.1 A

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Inductance1 µH
Performance Rated Current10.1 A
Saturation Current @ 30%11.5 A
DC Resistance12 mΩ
Self Resonant Frequency55 MHz
Operating Voltage80 V
MountSMT 
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