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IR3891MTRPBF

DC/DC POL Converter, Adjustable, Synchronous Buck, 1.5 MHz, 500 mV to 18.06 V out, 4 A, PQFN-31

IR3891MTRPBF - DC/DC POL Converter, Adjustable, Synchronous Buck, 1.5 MHz, 500 mV to 18.06 V out, 4 A, PQFN-31
IR3891MTRPBF - DC/DC POL Converter, Adjustable, Synchronous Buck, 1.5 MHz, 500 mV to 18.06 V out, 4 A, PQFN-31

Image is for illustrative purposes only. Please refer to product description.

Manufacturer:
INFINEON INFINEON
Manufacturer Part No:
IR3891MTRPBF
Order Code:
2577202
Product Range
SupIRBuck IR3891 Series
Also Known As:
SP001524662
Technical Datasheet:
IR3891MTRPBF   Datasheet
See all Technical Docs

Product Overview

The IR3891 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3891 a space-efficient solution, providing accurate power delivery for low output voltage. IR3891 is a versatile regulator which offers programmability of switching frequency and a fixed current limit while operating in wide input and output voltage range. The switching frequency is programmable from 300kHz to 1.5MHz for an optimum solution.
  • Single 5V to 21V application
  • Wide Input Voltage Range from 1V to 21V with external Vcc
  • Output Voltage Range: 0.5V to 0.86*PVin
  • Dual output, 4A/Phase
  • Enhanced Line/Load Regulation with Feed- Forward
  • Programmable Switching Frequency up to 1.5MHz
  • Internal Digital Soft-Start
  • Enable input with Voltage Monitoring Capability
  • Thermally compensated current limit and Hiccup Mode Over Current Protection
  • External synchronization with Smooth Clocking
  • Precision Reference Voltage (0.5V +/-1%)
  • Seq pin for Sequencing Applications
  • Integrated MOSFETs, drivers and Bootstrap diode
  • Thermal Shut Down
  • Open Feedback Line Protection
  • Over Voltage Protection

Applications

Computer Hardware, Power Supplies, Telecommunications

Product Information

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:
Module

:
1V

:
21V

:
2 Output

:
PQFN

:
31Pins

:
4A

:
500mV

:
18.06V

:
1.5MHz

:
Synchronous Buck (Step Down)

:
125°C

:
SupIRBuck IR3891 Series

:
MSL 1 - Unlimited
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Technical Docs (3)

Also Known As

SP001524662
Packaging type Re-reel

No Longer Manufactured

RM19.29

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