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IR3821AMPBF, IR3821MPBF, IR3821PBF

Table of contents:
Info of IR3821AMPBF
Info of IR3821MPBF
Info of IR3821PBF

IR3821AMPBF, IR3821MPBF, IR3821PBF Selling Leads, Datasheet

MFG:IOR Package Cooled:QFN D/C:08+

IR3821AMPBF, IR3821MPBF, IR3821PBF Picture

IR3821AMPBF, IR3821MPBF, IR3821PBF Datasheet download

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Part Number: IR3821AMPBF

MFG: IOR

Package Cooled: QFN

D/C: 08+

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IR3821AMPBF General Description

The IR3821A SupIRBuck^TM is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3821A a space-efficient solution, providing accurate power delivery for
low output voltage applications.

The IR3821A operates from a single 4.5V to 14V input supply and generates an output voltage adjustable from 0.6V to 0.8*Vin at loads up to 9A.A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3821A!s fixed 300kHz switching frequency allows the use of small external components.

The IR3821A 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.

IR3821AMPBF 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

IR3821AMPBF Features

· Wide Input Voltage Range 2.5V to 21V
· Wide Output Voltage Range 0.6V to 12V
· Continuous 9A Load Capability
· 300kHz 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)

IR3821AMPBF Typical Application

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

IR3821MPBF General Description

The IR3821^TM SupIRBuck is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard switching controller and MOSFETs make the IR3821 a space-efficient solution, providing accurate power delivery for low output voltage applications.

The IR3821 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 7A.A versatile regulator offering programmability of startup time, power good threshold and current limit, the IR3821's fixed 600kHz switching frequency allows the use of small external components.

The IR3821 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.

IR3821MPBF 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

IR3821MPBF Features

· Wide Input Voltage Range 2.5V to 21V
· Wide Output Voltage Range 0.6V to 12V
· Continuous 7A 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)

IR3821MPBF 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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