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ADI LTM4640IY#PBF product image
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ADI LTM4640IY#PBFRoHS

Manufacturer
ADI
MPN
LTM4640IY#PBF
LCSC Part #
C42719819
Packaging
BGA-49(6.3x6.3)
Customer #
Key Attributes
Step-down type Adjustable 20A 3.1V~20V 600mV~3.3V BGA-49(6.3x6.3) DC DC Converters RoHS
Datasheetpdf iconADI LTM4640IY#PBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 46.7524$ 46.75
30+$ 44.6165$ 1338.50
Standard Packaging260/Full Tray
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Products Specifications

All
TypeDescription
CategoryPower Supplies - Board Mount/DC DC Converters
ManufacturerADI
PackagingBGA-49(6.3x6.3)
Synchronous Rectifier-
FunctionStep-down type
Number of Outputs1
TopologyBuck
FeaturesOutput voltage differential sensing;Frequency synchronization;Operating status indication;Overcurrent Protection;Cycle-by-cycle current limiting;Output voltage tracking;Adjustable soft-start;Light load efficient mode
Frequency - Switching600kHz
Operating Temperature-40℃~+125℃@(TJ)
Output TypeAdjustable
Switch tube (built-in/external)Built-in
Output Current20A
Voltage - Supply3.1V~20V
Output Voltage600mV~3.3V
Quiescent Current100mA
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Introduction

AI Translation

LTM4640 is a complete 20A step-down switching mode power supply µModule regulator in a compact 6.25mm × 6.25mm × 5.07mm BGA package. The package integrates a switching controller, power MOSFETs, inductor, and supporting components. It operates over an input voltage range of 3.1V to 20V, supporting an output voltage range of 0.6V to 3.3V set by a single external resistor. Its high-efficiency design delivers up to 20A continuous output current. Only bulk input and output capacitors are required. The LTM4640 supports optional discontinuous conduction mode operation and output voltage tracking for power rail sequencing. Its high switching frequency and controlled on-time valley current mode architecture enables extremely fast transient response to line and load variations without sacrificing stability. Fault protection features include overvoltage and overtemperature protection. The LTM4640 is offered with RoHS-compliant terminal finish.

Features

AI Translation
  • Complete solution footprint < 1 cm² (single-sided PCB) or 0.5 cm² (double-sided PCB)
  • Wide input voltage range: 3.1V to 20V
  • 0.6V to 3.3V output voltage
  • Up to 20A DC output current
  • ±1.5% maximum total DC output voltage error
  • Differential remote sense amplifier
  • Fast transient response
  • External frequency synchronization
  • Supports multiphase parallel current sharing with up to 4 LTM4640 devices
  • Power good indicator
  • Overvoltage and overtemperature protection
  • 49-pin, 6.25mm × 6.25mm × 5.07mm BGA package
  • Pin-compatible with LTM4626, LTM4638, and LTM4657

Applications

AI Translation
  • Telecommunications
  • Data communications
  • Networking
  • Industrial equipment
  • Medical diagnostic equipment