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TDA38840
  • TDA38840

TDA38840

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The TDA38840 OptiMOS™ IPOL 40 A is an easy-to-use, fully integrated DC-DC buck regulator with patented fast Constant-On-Time (COT) control scheme. It simplifies the design effort, while enabling an enhanced transient response and improved Vout regulation. The onboard PWM controller and OptiMOS™ 5 MOSFETs with integrated bootstrap diode make the TDA38840 a small footprint, high efficiency solution for various point-of-load applications.

Infineon Technologies TDA38840 Product Info

16 April 2026 0

Parameters

Accuracy range

-0.5 % to 0.5 %

Family

OptiMOS™ IPOL

Industrial 24V Input

No

Input Voltage range

4.3 V to 17 V

Internal Bias LDO

Yes

Iout max

40 A

Moisture Sensitivity Level

2

Operating Temperature range

-40 °C to 125 °C

Output Voltage range

0.6 V to 6 V

Package

PG-IQFN-36-2

Power Good

Yes

Product Category

Analog

Qualification

Industrial

Regulator Type

Single output

Switching Frequency range

600 MHz to 2000 MHz

Technology

Fast Constant On-Time

Topology

Buck

Type

Single-phase

Apps

Medium voltage IBC (48 V), Edge computing, Telecommunications infrastructure, Consumer electronics

Features

  • Wide input voltage range from 2-17 V
  • Precision Reference (0.6V +/
  • 0.5%)
  • Compensation free enhanced COT engine
  • forced continuous or diode emulation
  • Switching frequency from 0.6-2MHz
  • Selectable soft-start time
  • Enhanced pre-bias start-up
  • Selectable OCP limit
  • Enable input with voltage monitoring
  • Power Good output
  • Thermal shut down
  • Operating Tj: -40 °C to 125 °C

Description

  • Easy to use fast constant on-time
  • High efficiency
  • Accurate output voltage regulation
  • Superior transient response
  • Low BOM

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