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Infineon IR3859MTRPBF product image
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Infineon IR3859MTRPBF

Manufacturer
Infineon
MPN
IR3859MTRPBF
LCSC Part #
C537722
Packaging
PQFN-24-EP(4x5)
Customer #
Key Attributes
225kHz~1.65MHz Step-down type Adjustable 9A PQFN-24-EP(4x5) Voltage Regulators - DC DC Switching Regulators RoHS
DatasheetInfineon IR3859MTRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 5.2278$ 5.23
200+$ 2.0235$ 404.70
500+$ 1.9525$ 976.25
1,000+$ 1.917$ 1917.00
Standard Packaging4000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerInfineon
PackagingPQFN-24-EP(4x5)
Operating Temperature-40℃~+125℃
Frequency - Switching225kHz~1.65MHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable current limiting;Hiccup current limiting;Adjustable soft-start;Frequency synchronization;External compensation;Operating status indication;Overcurrent Protection;Output voltage tracking
Output TypeAdjustable
TopologyBuck
Operating Voltage1.5V~21V
Switch tube (built-in/external)Built-in
Output Current9A
Output Voltage-
Quiescent Current-
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Introduction

AI Translation

The IR3859 SupIRBuck is an easy-to-use, fully integrated, and highly efficient DC/DC synchronous buck regulator. The integrated MOSFETs are co-packaged with an on-chip PWM controller, making it a space-saving solution that delivers precise power output for low output voltage applications. The regulator is highly versatile, operating over a wide input and output voltage range, with programmable soft-start time, switching frequency, and current limit. The switching frequency is programmable from 250kHz to 1.5MHz for solution optimization. It also features essential protection functions such as pre-bias startup, hiccup current limiting, and thermal shutdown, providing the required system-level safety under fault conditions.

Features

AI Translation
  • Peak efficiency greater than 95%
  • Wide input voltage range: 1.5V to 21V
  • Wide output voltage range: 0.7V to 0.9 × Vin
  • 9A continuous load capability
  • Integrated bootstrap diode
  • High-bandwidth error amplifier for excellent transient performance
  • Programmable switching frequency up to 1.5MHz
  • Programmable overcurrent protection
  • Overvoltage protection
  • Dedicated input for output voltage monitoring
  • Programmable power-good output
  • Hiccup current limiting
  • Precision reference voltage (0.7V, ±1%)
  • Programmable soft-start
  • Enable input with voltage monitoring capability
  • Enhanced pre-bias startup
  • Sequencing input for tracking applications
  • External synchronization
  • Operating junction temperature range: -40°C to 125°C
  • Thermal protection
  • 4mm × 5mm Power QFN package
  • Halogen-free, lead-free, and RoHS compliant

Applications

AI Translation
  • Server applications
  • Storage applications
  • Embedded telecom systems
  • Distributed load power architecture
  • General-purpose DC-DC converters