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IR3820, IR3820MPBF, IR3821

Table of contents:
Info of IR3820
Info of IR3820MPBF
Info of IR3821

IR3820, IR3820MPBF, IR3821 Selling Leads, Datasheet

MFG:IR Package Cooled:QFN D/C:04+

IR3820, IR3820MPBF, IR3821 Datasheet download

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Part Number: IR3820

MFG: IR

Package Cooled: QFN

D/C: 04+

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IR3820 General Description

The IR3820 SupIRBuck^TM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3820 a space-efficient solution, providing accurate power delivery for low output voltage applications.

The IR3820 operates from a 4.5V to 14V input supply and generates an output voltage adjustable from 0.6V to 0.75*Vin at loads up to 12A. A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3820's fixed 600kHz switching frequency allows the use of small external components.

The IR3820 also features important protection functions, such as Pre-Bias startup, hiccup current limit and thermal shutdown to provide the required system level security in the event of fault conditions.

IR3820 Features

• Wide Input Voltage Range 2.5V to 21V
• Wide Output Voltage Range 0.6V to 12V
• Continuous 12A Load Capability
• 600kHz High Frequency Operation
• Programmable Over-Current Protection
• Programmable PGood Output
• Hiccup Current Limit
• Precision Reference Voltage (0.6V)
• Programmable Soft-Start
• Pre-Bias Start-up
• Thermal Protection
• Thermally Enhanced Package
• Small Size 5mmx6mm QFN
• Pb-Free (RoHS Compliant)

IR3820 Typical Application

• Distributed Point-of-Loads
• Server and Workstations
• Embedded Systems
• Storage Systems
• DDR Applications
• Graphics Cards
• Game Consoles
• Computing Peripheral Voltage Regulators

IR3820 Connection Diagram

IR3820MPBF General Description

The IR3820 SupIRBuck^TM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3820 a space-efficient solution, providing accurate power delivery for low output voltage applications.

The IR3820 operates from a single 4.5V to 14V input supply and generates an output voltage adjustable from 0.6V to 0.75*Vin at loads up to 12A.

A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3820's fixed 600kHz switchingfrequency allows the use of small external components.

The IR3820 also features important protection functions, such as Pre-Bias startup, hiccup current limit and thermal shutdown to provide the required system level security in the event of fault conditions.

IR3820MPBF Maximum Ratings

V_IN Supply Voltage..............-0.3V to 24V
Vcc Supply Voltage..............-0.3V to 16V
Vc Supply Voltage..............-0.3V to 30V
SW......................-0.3V to 30V
PGood....................-0.3V to 16V
Fb,COMP,SS,Vsns..............-0.3V to 3.5V
OCSet........................10mA
AGnd to PGnd ...............-0.3V to +0.3V
Storage Temperature Range .......-65 To 150
Operating Junction Temperature Range..-40 To 150
ESD Classification..........JEDEC, JESD22-A114
Moisture Sensitivity Level.....JEDEC Level 3 @ 260

Caution: Stresses beyond those listed under "Absolute Maxmum Rating"may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond
those indicated in the operational sections of the specifications is not implied. Exposure to "Absolute Maximum Rating"conditions for extended periods may affect device reliability

IR3820MPBF Features

· Wide Input Voltage Range 2.5V to 21V
· Wide Output Voltage Range 0.6V to 12V
· Continuous 12A Load Capability
· 600kHz High Frequency Operation
· Programmable Over-Current Protection
· Programmable PGood Output
· Hiccup Current Limit
· Precision Reference Voltage (0.6V)
· Programmable Soft-Start
· Pre-Bias Start-up
· Thermal Protection
· Thermally Enhanced Package
· Small Size 5mmx6mm QFN
· Pb-Free (RoHS Compliant)

IR3820MPBF Typical Application

· Distributed Point-of-Loads
· Server and Workstations
· Embedded Systems
· Storage Systems
· DDR Applications
· Graphics Cards
· Game Consoles
· Computing Peripheral Voltage Regulators

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