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IC manufacturers Infineon Technologies

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reference designIR3826A

Infineon Technologies IR3826A

16 A single-voltage synchronous Buck regulator

Overview

TopologyBuck Converter
Input voltage5-17 V
Switching frequency300-1500 kHz
Output 10.86 V / 16 A
IC revision2.3

Description

The IR3826A is an easy-to-use, fully integrated and highly efficient dc-dc regulator.The onboard PWM controller and OptiMOS™ FETs with integrated bootstrap diode make the IR3826A a smallfootprint solution, providing high-efficiency power delivery.The IR3826A is a versatile regulator, operating with wide input and output voltage range, offering programmable switching frequency from 300 kHz to 1.5 MHz, and providing three selectable over current limits.It also features important protection functions, such as pre-bias start-up, thermally compensated current limit, over voltage protection and thermal shutdown to give required system level security in the event of fault conditions.

Features

  • Single 5 V to 17 V application or Wide Input Voltage Range from 1.0 V to 17 V with external Vcc
  • Precision Reference Voltage (0.6 V ± 0.6%) for Output Voltage Range: 0.6 V to 0.86×Vin
  • Enhanced Line/Load Regulation with Feed-Forward
  • Programmable Switching Frequency up to 1.5 MHz
  • Monotonic Start-Up with Internal Digital Soft-Start & Enhanced Pre-Bias Start-Up
  • Thermally Compensated Internal Over-Current Protection with Three Selectable Settings
  • Enable input with Voltage Monitoring Capability & Programmable Power Good Output
  • Thermal Shut Down
  • Operating temp: -40 °C < Tj < 125 °C
  • Small Size: 6 mm x 5 mm PQFN
  • Lead-free, Halogen-free and RoHS2 Compliant

Typical applications

  • Distributed Point of Load Power Architectures
  • Telecom & Datacom Applications

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(nH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
Material
LR(nH)
fres(MHz)
IR(A)
RDC(mΩ)
SamplesAvailability & Sample
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744301047
SPECWE-HCM SMT High Current Flat Wire Inductor, 470 nH, 56 A
Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance470 nH
Performance Rated Current56 A
Saturation Current @ 10%32.1 A
Saturation Current @ 30%36.1 A
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MaterialMnZn 
Rated Inductance240 nH
Self Resonant Frequency20 MHz
Rated Current38 A
DC Resistance0.32 mΩ
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7443320068
SPECWE-HCC SMT High Current Cube Inductor, 680 nH, 40.2 A
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCC SMT High Current Cube Inductor
Inductance680 nH
Performance Rated Current40.2 A
Saturation Current @ 10%35.8 A
Saturation Current @ 30%39.1 A
DC Resistance1.85 mΩ
MaterialFerrite 
Rated Inductance660 nH
Self Resonant Frequency108 MHz
Rated Current26 A
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