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reference designSGM611A13

SG-Micro SGM611A13

6V/12A, Synchronous Buck Converter with Adjustable SGM611A13 Current Limit, Selectable Frequency, and Voltage Tracking

Overview

TopologyBuck Converter
Input voltage4.5-16 V
Output 112 A
IC revision00

Description

The SGM611A13 is a high-efficiency high-frequency synchronous Buck DC/DC converter with a wide input voltage range of 4.5V to 16V and a wide output current range, optimized for compact solutions. With an internally compensated constant on-time (COT) control mode architecture, ultra-fast dynamic response is achieved, and loop stabilization is guaranteed with ease. The switching frequency of the converter can be set to 600kHz, 800kHz or 1000kHz with a MODE pin, which allows the converter frequency to stay at a fixed value independent of the input and output voltages. The SGM611A13 has voltage tracking capability in which output voltage can track the voltage applied at the TRK/REF pin. A ceramic capacitor, which determines the soft-start time, should be placed as close to TRK/REF pin as possible. The power-good (PGOOD pin) is an open-drain output that is provided to signal the status of the output voltage to the downstream system. When the input supply is unable to power the device, the VPG can be clamped low by itself with external pull-up resistor. The device integrates various protection features such as over-voltage protection, over-current protection, input under-voltage lockout and thermal shutdown. In addition, the synchronous rectifier supports short circuit protection which further improves the robustness of the device. The SGM611A13 is available in a Green TQFN-3×4-21L package.

Features

  • Adaptive COT (Constant On-Time) for Ultra-Fast Transient Response
  • Wide Input Voltage Range: 4.5V to 16V
  • Wide Output Adjustable Voltage Range: 0.6V to (90% × VIN) -with an Upper Limit of 5.5V
  • Selectable Switching Frequency: 600kHz, 800kHz and 1000kHz
  • Remote Differential Sense of Output Voltage
  • Adjustable Current Limit Level
  • Output Current: 12A
  • Integrated Low RDSON Power FETs
  • Stable with Low-ESR Output Capacitor
  • 1% Reference Voltage at TJ = 0℃ to +85℃
  • 1.5% Reference Voltage at TJ = -40℃ to +125℃
  • Programmable Pulse Saving Operation or Forced CCM
  • Outstanding Load Regulation
  • Power Good Open-Drain Output
  • Output Voltage Tracking Capability
  • Output Discharge Function
  • Adjustable Soft-Start Time from 0.91ms Timer
  • Safe Pre-Bias Startup Capability
  • Available in a Green TQFN-3×4-21L Package

Typical applications

  • General Purpose Point-of-Load
  • Telecom, Base Stations
  • Sever, Computing, Storage, SSD

More information

Parts approved by SG-Micro

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
RDC max.(mΩ)
LR(µH)
Mount
SamplesAvailability & Sample
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744373460022
SPECWE-LHMI SMT Power Inductor, 0.22 µH, 23 A
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LHMI SMT Power Inductor
Inductance0.22 µH
Performance Rated Current23 A
Saturation Current @ 10%29.9 A
Saturation Current @ 30%54.3 A
–
Self Resonant Frequency149 MHz
–
Packaging Unit1000 
DC Resistance2.8 mΩ
–
MountSMT 
–Check availability
744314047
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.47 µH, 31.9 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.47 µH
Performance Rated Current31.9 A
Saturation Current @ 10%9 A
Saturation Current @ 30%20 A
DC Resistance1.35 mΩ
Self Resonant Frequency235 MHz
MaterialSuperflux 
Packaging Unit1000 
DC Resistance1.485 mΩ
Rated Inductance0.38 µH
MountSMT 
–Check availability
7443340150
SPECWE-HCC SMT High Current Cube Inductor, 1.5 µH, 14.8 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCC SMT High Current Cube Inductor
Inductance1.5 µH
Performance Rated Current14.8 A
Saturation Current @ 10%16.4 A
Saturation Current @ 30%18.5 A
–
Self Resonant Frequency120 MHz
MaterialFerrite 
Packaging Unit500 
DC Resistance5.6 mΩ
Rated Inductance1.4 µH
MountSMT 
–Check availability