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reference designSGM64A00 | Demoboard SGM64104 Demo Board

SG-Micro SGM64A00 | Demoboard SGM64104 Demo Board

100V Synchronous Buck DC/DC Controller with Wide Duty Cycle Range

Overview

TopologyBuck Converter
Input voltage4.5-18 V
Switching frequency100-1000 kHz
Output 11.8 V / 20 A
IC revision00

Description

The SGM64A00 is a wide input voltage range synchronous Buck controller, supporting an input voltage range of 6.5V to 100V. The minimum high-side MOSFET on-time of 40ns effectively supports low duty cycle applications. The device can be directly applied to industrial-standard 48V high-voltage DC power supply systems, enabling step-down conversion to low-voltage power rails (e.g., 5V/12V). The SGM64A00 is suitable for applications with stringent requirements on input voltage fluctuations, such as industrial power supplies and communication base stations.

Features

  • Range of Application:
  • Input Voltage Range: 6.5V to 100V
  • Output Voltage Range: 0.8V to 60V
  • Reference Voltage: 0.8V (±1% Accuracy)
  • Fixed Switching Frequency: Adjustable, 100kHz to 1MHz
  • Drive Timing Characteristics:
  • High-side Minimum On-Time: 40ns
  • Low-side Minimum On-Time: 150ns
  • HO Turn-On Dead Time: 16ns
  • LO Turn-On Dead Time: 18ns
  • Drive Capability:
  • Gate Drive Voltage: 7.5V
  • Current Capability: 3A Sink, 2A Source
  • Control Architecture: Voltage-Mode Control with Feed-Forward Compensation
  • Power Management and Protection:
  • EN: Configurable Power-On/Off Thresholds
  • VIN UVLO: Hysteretic Under-Voltage Lockout for Input Voltage
  • VCC UVLO: Hysteretic Under-Voltage Lockout for Gate Drive Supply
  • Adjustable Soft-Start: Programmable Startup Time
  • Conduction Mode Configuration: Selectable DCM or CCM Operation
  • PGOOD: Power-Good Indicator
  • Synchronization: Support Parallel or Cascaded Operation for Phase Management
  • Current Sensing and Protection:
  • Low-side MOSFET RDSON or External Sense Resistor Current Sensing
  • Hiccup Mode Over-Current Protection
  • Over-Temperature Protection: +175°C Thermal Shutdown with Hysteresis
  • Available in a Green TQFN-3.5×4.5-20BL Package

Typical applications

  • IP Cameras
  • Industrial Motor Drives
  • Electric Bike
  • Inverting Buck-Boost Regulators Non-Isolated PoE

More information

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Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
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744314110
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.1 µH, 19.6 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.1 µH
Performance Rated Current19.6 A
Saturation Current @ 10%6 A
Saturation Current @ 30%13 A
DC Resistance3.15 mΩ
Self Resonant Frequency135 MHz
MaterialSuperflux 
Packaging Unit1000 
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