Dual MOSFET Driver with Bootstrapping

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Overview

The ADP3415 is a dual MOSFET driver optimized for driving two N-channel FETs that are the two switches in the nonisolated synchronous buck power converter topology. Each driver size is optimized for performance in notebook PC regulators for CPUs in the 20 A range. The high-side driver can be bootstrapped atop the switched node of the buck converter as needed to drive the upper switch and is designed to accommodate the high voltage slew rate associated with high performance, high frequency switching. The ADP3415 features an overlapping protection circuit (OPC); undervoltage lockout (UVLO) that holds the switches off until the driver is assured of having sufficient voltage for proper operation; a programmable transition delay; and a synchronous drive disable pin. The quiescent current, when the device is disabled, is less than 100 µA.

  • CPU Core Power Converters
  • Multiphase CPU Supplies
  • Single-Supply Synchronous Buck Converters
  • Standard-to-Synchronous Converter Adaptations
  • Notebook Computers
  • Desktop Computers
  • All in one synchronous buck converter
  • One PWM generates both drives
  • Anti cross-conduction protection circuitry
  • Programmable transition delay
  • Synchronous overdrive control
  • Zero-crossing synchronous drive control
  • Undervoltage lockout
  • Shutdown quiescent current <100 µA

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ADP3415LRMZ-REEL

Obsolete

Pb

A

H

P

No Case Outline

1

260

REEL

3000

N

-

2

-

-

-

7.5

-

-

-

-

-

-

-

Price N/A

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