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ADI LTC4449EDCB#TRPBF product image
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ADI LTC4449EDCB#TRPBF

Manufacturer
ADI
MPN
LTC4449EDCB#TRPBF
LCSC Part #
C688593
Packaging
DFN-8-EP(2x3)
Customer #
Key Attributes
High Speed Synchronous N-Channel MOSFET Driver
DatasheetADI LTC4449EDCB#TRPBF
RoHS Compliance1 documents available
Alternative Parts2
In-Stock: 10
10 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 5.1473$ 5.15
10+$ 4.4053$ 44.05
30+$ 3.9643$ 118.93
100+$ 3.5185$ 351.85
500+$ 3.3125$ 1656.25
1,000+$ 3.2207$ 3220.70
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Gate Drivers
ManufacturerADI
PackagingDFN-8-EP(2x3)
Input Logic Level - Low-
Low Level Delay Time14ns
High Level Delay Time13ns
Quiescent Current-
Input Logic Level - High-
Voltage - Supply4V~6.5V
Operating Temperature-40℃~+125℃
Driven ConfigurationHalf-Bridge
Current - Output Low(IOL)4.5A
Rise Time8ns
Fall Time7ns
FeaturesEnable shutdown;Interleaved conduction protection
Current - Output High(IOH)3.2A
Load TypeMOSFET
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Introduction

AI Translation

The LTC4449 is a high frequency gate driver that is designed to drive two N-Channel MOSFETs in a synchronous DC/DC converter. The powerful rail-to-rail driver capability reduces switching losses in MOSFETs with high gate capacitance. The LTC4449 features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4449 activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which functions at up to 42V above ground. The LTC4449 contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOSFETs when an undervoltage condition is present. An adaptive shoot-through protection feature is also built-in to prevent the power loss resulting from MOSFET crossconduction current. The LTC4449 is available in the 2mm × 3mm DFN package.

Features

AI Translation
  • 4V to 6.5V VCC Operating Voltage
  • 38V Maximum Input Supply Voltage
  • Adaptive Shoot-Through Protection
  • Rail-to-Rail Output Drivers
  • 3.2A Peak Pull-Up Current
  • 4.5A Peak Pull-Down Current
  • 8ns TG Rise Time Driving 3000pF Load
  • 7ns TG Fall Time Driving 3000pF Load
  • Separate Supply to Match PWM Controller
  • Drives Dual N-Channel MOSFETs
  • Undervoltage Lockout
  • Low Profile (0.75mm) 2mm × 3mm DFN Package

Applications

AI Translation
  • Distributed Power Architectures
  • High Density Power Modules
  • Synchronous Buck Converter Driver
  • LTC4449 Driving 3000pF Capacitive Loads

Alternative Parts

MPNManufacturerPackagingAvailabilityUnit Price
LTC4449IDCB#TRPBFADIDFN-8-EP(2x3)54$ 7.8529
LTC4449IDCB#TRMPBFADIDFN-8-EP(2x3)0$ 2.5915