PD97512
IR3838MPbF
TM
SupIRBuck
HIGHLY INTEGRATED 10A
SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
Description
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Greater than 96% Maximum Efficiency
The IR3838 SupIRBuckTM is an easy-to-use, fully
integrated and highly efficient DC/DC regulator.
The onboard PWM controller and MOSFETs
make IR3838 a space-efficient solution, providing
accurate power delivery for low output voltage
applications.
Single 16V Application
Single 5V Application
Wide Output Voltage Range: 0.6V to 0.9*Vin
Continuous 10A Load Capability
Programmable Switching Frequency up to 1.5MHz
Internal Digital Soft-Start
IR3838 is a versatile regulator which offers
programmability of switching frequency and
current limit while operates in wide input and
output voltage range.
Enable Input with Voltage Monitoring Capability
Hiccup Mode Over Current Protection
Internal LDO
External Synchronization
Enhanced PreBias Start up
The switching frequency is programmable from
250kHz to 1.5MHz for an optimum solution.
External Reference for Margining Purposes
Input for Tracking Applications
It also features important protection functions,
such as Pre-Bias startup, hiccup current limit and
thermal shutdown to give required system level
security in the event of fault conditions.
Integrated MOSFET Drivers and Bootstrap Diode
Operating Junction Temp: -40oC <Tj<125oC
Thermal Shut Down
Power Good Output with tracking capability
Over Voltage Detection Feature
IR3838 offers margining capability through Vref
pin. During the margining operation, PGood
tracks Vref via feedback to ensure correct status
of the output voltage.
Pin Compatible with 6A and 14A Versions
Small Size 5mmx6mm PQFN, 0.9 mm Height
Lead-free, Halogen-free and RoHS Compliant
Applications
The internal LDO enables the device to operate
from a single supply. This internal LDO can be
bypassed when an external bias voltage is
available.
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Netcom and Telecom Applications
Data Center Applications
Distributed Point of Load Power Architectures
Fig. 1. Typical application diagram
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Rev 1.41