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IR3838MPBF_15 Datasheet, PDF (1/35 Pages) International Rectifier – HIGHLY INTEGRATED 10A SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR | |||
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PD97512
IR3838MPbF
SupIRBuckTM
HIGHLY INTEGRATED 10A
SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
Description
⢠Greater than 96% Maximum Efficiency
The IR3838 SupIRBuckTM is an easy-to-use, fully
⢠Single 16V Application
integrated and highly efficient DC/DC regulator.
⢠Single 5V Application
The onboard PWM controller and MOSFETs
⢠Wide Output Voltage Range: 0.6V to 0.9*Vin
make IR3838 a space-efficient solution, providing
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Continuous 10A Load Capability
Programmable Switching Frequency up to 1.5MHz
Internal Digital Soft-Start
accurate power delivery for low output voltage
applications.
⢠Enable Input with Voltage Monitoring Capability
IR3838 is a versatile regulator which offers
⢠Hiccup Mode Over Current Protection
programmability of switching frequency and
⢠Internal LDO
current limit while operates in wide input and
⢠External Synchronization
output voltage range.
⢠Enhanced PreBias Start up
The switching frequency is programmable from
⢠External Reference for Margining Purposes
250kHz to 1.5MHz for an optimum solution.
⢠Input for Tracking Applications
⢠Integrated MOSFET Drivers and Bootstrap Diode It also features important protection functions,
⢠Operating Junction Temp: -40oC <Tj<125oC
such as Pre-Bias startup, hiccup current limit and
⢠Thermal Shut Down
thermal shutdown to give required system level
⢠Power Good Output with tracking capability
security in the event of fault conditions.
⢠Over Voltage Detection Feature
IR3838 offers margining capability through Vref
⢠Pin Compatible with 6A and 14A Versions
pin. During the margining operation, PGood
⢠Small Size 5mmx6mm PQFN, 0.9 mm Height
tracks Vref via feedback to ensure correct status
⢠Lead-free, Halogen-free and RoHS Compliant
of the output voltage.
Applications
⢠Netcom and Telecom Applications
⢠Data Center Applications
⢠Distributed Point of Load Power Architectures
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.
Fig. 1. Typical application diagram
Rev 1.41
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