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LTM4639IY

Module DC-DC with 1 output ranging from 0.6V to 5.5V and a 20A capacity for medical purposes

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Overview of LTM4639IY

The LTM4639 is a complete 20A output high efficiency switch mode step-down DC/DC μModule (power module) regulator. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 2.375V to 7V, the LTM4639 supports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Only a few input and output capacitors are needed.

Key Features

  • Complete 20A Switch Mode Power Supply
  • 2.375V to 7V Input Voltage Range (VIN < 4.5V, Need CPWR Bias)
  • 0.6V to 5.5V Output Voltage Range
  • ±1.5% Maximum Total DC Output Voltage Error (–40°C to 125°C)
  • Differential Remote Sense Amplifier for Precision Regulation (VOUT ≤ 3.3V)
  • Current Mode Control/Fast Transient Response
  • Parallel Multiphase Current Sharing (Up to 80A)
  • Frequency Synchronization
  • Selectable Pulse-Skipping or Burst Mode® Operation
  • Soft-Start/Voltage Tracking
  • Up to 88% Efficiency (3.3VIN, 1.5VOUT)
  • Overcurrent Foldback Protection
  • Output Overvoltage Protection
  • Internal Temperature Monitor
  • Overtemperature Protection
  • 15mm × 15mm × 4.92mm BGA Package

Application

  • Telecom Servers and Networking Equipment
  • Industrial Equipment
  • Medical Systems
  • High Ambient Temperature Systems
  • 3.3V Input Systems

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Switching Voltage Regulators RoHS No&nbsp-RoHS Version Available
Output Voltage 600 mV to 5.5 V Output Current 20 A
Input Voltage, Max 7 V Number of Outputs 1 Output
Topology Buck Package / Case BGA-133
Mounting Style SMD/SMT Switching Frequency 250 kHz to 800 kHz
Quiescent Current 45 uA Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Series LTM4639
Input Voltage, Min 2.375 V Brand Analog Devices
Development Kit DC2166A Input Voltage 2.375 V to 7 V
Load Regulation 0.1 % Moisture Sensitive Yes
Operating Supply Current 25 mA Product Type Switching Voltage Regulators
Shutdown Shutdown Factory Pack Quantity 119
Subcategory PMIC - Power Management ICs Tradename uModule
Type DC/DC µModule Step-Down Regulator

Warranty & Returns

Warranty, Returns, and Additional Information

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    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

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