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IR3899AMTRPBF
  • IR3899AMTRPBF

IR3899AMTRPBF

The IR3899AMTRPBF is a 9A easy-to-use, fully integrated synchronous buck regulator. It uses a compensation free fast Constant-On-Time (COT) control scheme, which simplifies the design effort and minimizes the bill of material (BOM). The IR3899A is offered in a small 4mm x 5mm PQFN package with excellent thermal performance.

Infineon Technologies IR3899AMTRPBF Product Info

16 April 2026 0

Parameters

Accuracy max

0.5 %

Family

IPOL

Input Voltage range

4.3 V to 17 V

Iout max

9 A

Moisture Sensitivity Level

2

Number of Outputs

1

Operating Temperature range

-40 °C to 125 °C

Operating Voltage range

4.3 V to 17 V

Output Voltage range

0.6 V to 6 V

Over Voltage Protection

Yes

Package

PQFN / 4 x 5

Power Good

Yes

Product Category

Analog

Qualification

Industrial

Switching Frequency range

600 kHz to 2000 kHz

Technology

Fast Constant On-Time

Type

Single-phase

Apps

Medium voltage IBC (48 V), Edge computing, Smart speaker designs, Domestic robots

Description

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

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