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IR3846AMTRPBF
  • IR3846AMTRPBF

IR3846AMTRPBF

IR3846A OptiMOS™ IPOL is an easy-to-use, fully integrated DC-DC buck regulator with patented fast Constant-On-Time (COT) control scheme. It simplifies design effort with a small footprint, which fulfill customer needs for high power density. Meanwhile, IR3846A enables an enhanced transient response and improved Vout regulation with single switching frequency, thus it’s ideal for various applications looking for high efficiency, low EMI and compact solution.

Infineon Technologies IR3846AMTRPBF Product Info

16 April 2026 1

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

Over Voltage Protection

Yes

Package

PG-IQFN-34-900

Power Good

Yes

Product Category

Analog

Qualification

Industrial

Regulator Type

Single Output

Switching Frequency range

600 kHz to 600 kHz

Technology

Fast Constant On-Time

Topology

Buck

Type

Single-phase

Apps

Telecommunications infrastructure

Features

  • Wide input voltage range from 2-17 V
  • Precision Reference (0.6V +/
  • 0.5%)
  • Compensation free enhanced COT engine
  • Single Fsw for EMI-sensitive application
  • Continuous conduction for low Vripple
  • Enable input with voltage monitoring
  • Power Good Output
  • Enhanced pre-bias start-up
  • Fixed soft-start time
  • Selectable OCP limit
  • Thermal shut down
  • Operating Tj: -40 °C to 125 °C

Description

  • Easy to use fast COT PWM engine
  • High efficiency
  • Accurate output voltage regulation
  • Superior transient response
  • Reduced BOM

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