IR3839MPbF 반도체 회로 부품 판매점
SYNCHRONOUS BUCK REGULATOR
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 International Rectifier |
PD97513
IR3839MPbF
SupIRBuckTM
HIGHLY INTEGRATED 6A
SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
• Greater than 96% Maximum Efficiency
• Single 16V Application
• Single 5V Application
• Wide Output Voltage Range: 0.6V to 0.9*Vin
• Continuous 6A Load Capability
• Programmable Switching Frequency up to 1.5MHz
• Internal Digital Soft-Start
• Enable Input with Voltage Monitoring Capability
• Hiccup Mode Over Current Protection
• Internal LDO
• External Synchronization
• Enhanced PreBias Start up
• External Reference for Margining Purposes
• Input for Tracking Applications
• 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
• Pin Compatible with 10A and 14A Versions
• Small Size 5mmx6mm PQFN, 0.9 mm Height
• Lead-free, Halogen-free and RoHS Compliant
Description
The IR3839 SupIRBuckTM is an easy-to-use, fully
integrated and highly efficient DC/DC regulator.
The onboard PWM controller and MOSFETs
make IR3839 a space-efficient solution, providing
accurate power delivery for low output voltage
applications.
IR3839 is a versatile regulator which offers
programmability of switching frequency and
current limit while operates in wide input and
output voltage range.
The switching frequency is programmable from
250kHz to 1.5MHz for an optimum solution.
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.
IR3839 offers margining capability through Vref
pin. During the margining operation, PGood
tracks Vref via feedback to ensure correct status
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.
Rev 1.41
Fig. 1. Typical application diagram
1
IR3839MPbF
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND unless otherwise specified)
• PVin, Vin ……………………………………………… -0.3V to 25V
• Vcc/LDO_out ……………….……..……..……….…… -0.3V to 8V (Note2)
• Boot ……………………………………..……….….. -0.3V to 33V
• SW …………………………………………..……… -0.3V to 25V (DC), -4V to 25V (AC, 100ns)
• Boot to SW ……..…………………………… …..…. -0.3V to Vcc+0.3V (Note1)
• OCset …………………………………………..…… -0.3V to 30V
• Input / output Pins ………………………………... ... -0.3V to Vcc+0.3V (Note1)
• PGnd to Gnd ……………...………………….…….…. -0.3V to +0.3V
• Storage Temperature Range .................................... -55°C To 150°C
• Junction Temperature Range ................................... -40°C To 150°C (Note2)
• ESD Classification …………………………… ……… JEDEC(2KV)
• Moisture sensitivity level………………...……………. JEDEC Level 2 @260 °C (Note 5)
Note1: Must not exceed 8V
Note2: Vcc must not exceed 7.5V for Junction Temperature between -10oC and -40oC
Stresses beyond those listed under “Absolute Maximum Ratings” 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 are not implied.
Package Information
5mm x 6mm Power QFN
(Top View)
13
PVin
12 11
SW
PGnd
θJA = 35 oC / W
θJ-PCB = 2oC / W
Boot
Enable
Vp
14
15
16
17
Gnd
10 Vcc/LDO_out
9 Vin
8 Sync
ORDERING INFORMATION
PACKAGE
DESIGNATOR
M
M
12 34567
Fb Vref Comp Gnd Rt OCset PGood
PACKAGE
DESCRIPTION
IR3839MTRPbF
IR3839MTR1PbF
PIN
COUNT
17
17
PARTS PER
REEL
4000
750
Rev 1.41
2
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제조업체: International Rectifier
( ir )
IR3839MPbF regulator
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