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TDA21535
  • TDA21535

TDA21535

Active and preferred

The TDA21535 OptiMOS™ power stage contains a low quiescent-current synchronous buck gate-driver IC co-packaged with high-side and low-side MOSFETs and an active diode structure that achieves low Vsd similar to a Schottky with very little reverse recovery charge. The TDA21535 internal MOSFET current sense algorithm with temperature compensation achieves superior current sense accuracy versus inductor DCR sense methods.

Infineon Technologies TDA21535 Product Info

16 April 2026 1

Parameters

Features

5% current and Temperature Telemetry

Input Voltage range

4.25 V to 16 V

Iout

35 A

Moisture Sensitivity Level

MSL 2

Output Voltage range

0.225 V to 5.5 V

Package

PQFN 4x5

Qualification

Industrial

Switching Frequency range

100 kHz to 1500 kHz

Technology

OptiMOS™ 5

Type

Powerstage

Apps

Data center power solutions, Medium voltage IBC (48 V), Edge computing, Telecommunications infrastructure

Features

  • Integrated driver, diode & 2 MOSFETs
  • Input voltage range of 4.25 V to 16 V
  • Vcc & Vdrv supply of 4.25 V to 5.5 V
  • Output voltage range from 0.225-5.5 V
  • On-chip MOSFET current reporting 5 µA/A
  • 35A operating current with 61A OCP
  • Operation up to 1.5 MHz
  • High-side MOSFET short detection & flag
  • Thermal shutdown
  • Cycle-by-cycle OCP & fault flag
  • Auto-sleep & Deep-sleep modes
  • Compatible with 3.3V tri-state PWM input

Description

  • High efficiency at low o/p voltage
  • Accurate current reporting
  • Current and temperature monitoring
  • Bootstrap cap auto-replenishment
  • Optimized PCB heat transfer

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