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IR3842MPBF

Description
4 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, QCC15
CategoryPower/power management    The power supply circuit   
File Size923KB,32 Pages
ManufacturerInternational Rectifier ( Infineon )
Websitehttp://www.irf.com/
Environmental Compliance
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IR3842MPBF Overview

4 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, QCC15

IR3842MPBF Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerInternational Rectifier ( Infineon )
package instructionQCCN, LCC(UNSPEC)
Reach Compliance Codeunknow
control modeVOLTAGE-MODE
Maximum output current4 A
Package body materialPLASTIC/EPOXY
encapsulated codeQCCN
Encapsulate equivalent codeLCC(UNSPEC)
Package formCHIP CARRIER
Certification statusNot Qualified
surface mountYES
Maximum switching frequency1650 kHz
Terminal formNO LEAD
Terminal locationQUAD
PD60366
IR3842MPbF
SupIRBuck
Features
TM
HIGHLY EFFICIENT
Description
The IR3842
SupIRBuck
TM
is an easy-to-use, fully
integrated
and
highly
efficient
DC/DC
synchronous Buck regulator. The MOSFETs co-
packaged with the on-chip PWM controller make
IR3842 a space-efficient solution, providing
accurate power delivery for low output voltage
applications.
IR3842 is a versatile regulator which offers
programmability of start up time, switching
frequency and current limit while operating 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.
INTEGRATED 4A SYNCHRONOUS BUCK REGULATOR
Greater than 95% Maximum Efficiency
Wide Input Voltage Range 1.5V to 16V
Wide Output Voltage Range 0.7V to 0.9*Vin
Continuous 4A Load Capability
Integrated Bootstrap-diode
High Bandwidth E/A for excellent transient
performance
Programmable Switching Frequency up to 1.5MHz
Programmable Over Current Protection (Hiccup)
PGood output
Precision Reference Voltage (0.7V, +/-1%)
Programmable Soft-Start
Enable Input with Voltage Monitoring Capability
Enhanced Pre-Bias Start-up
Seq input for Tracking applications
-40
o
C to 125
o
C operating junction temperature
Thermal Protection
Pin compatible option for 8A and 12A devices
5mm x 6mm Power QFN Package, 0.9 mm height
Lead-free, halogen-free and RoHS compliant
Applications
Server Applications
Storage Applications
Embedded Telecom Systems
Distributed Point of Load Power Architectures
1.5V <Vin<16V
Netcom Applications
Computing Peripheral Voltage Regulators
General DC-DC Converters
4.5V <Vcc<5.5V
Seq
Vcc
PGood
PGood
Enable
Vin
Boot
Vo
SW
OCSet
Fb
Rt
Comp
SS/ SD
Gnd
PGnd
Fig. 1. Typical application diagram
06/18/09
1

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Description 4 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, QCC15 4 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, QCC15 4 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, QCC15
Is it lead-free? Lead free Lead free Lead free
Is it Rohs certified? conform to conform to conform to
package instruction QCCN, LCC(UNSPEC) HQCCN, LCC(UNSPEC) HQCCN, LCC(UNSPEC)
Reach Compliance Code unknow compliant compliant
control mode VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
Maximum output current 4 A 4 A 4 A
Package body material PLASTIC/EPOXY UNSPECIFIED UNSPECIFIED
encapsulated code QCCN HQCCN HQCCN
Encapsulate equivalent code LCC(UNSPEC) LCC(UNSPEC) LCC(UNSPEC)
Package form CHIP CARRIER CHIP CARRIER, HEAT SINK/SLUG CHIP CARRIER, HEAT SINK/SLUG
Certification status Not Qualified Not Qualified Not Qualified
surface mount YES YES YES
Maximum switching frequency 1650 kHz 1650 kHz 1650 kHz
Terminal form NO LEAD NO LEAD NO LEAD
Terminal location QUAD QUAD QUAD
Parts packaging code - QFN QFN
Contacts - 15 15
ECCN code - EAR99 EAR99
Is Samacsys - N N
Other features - ALSO OPERATES IN THE ADJUSTABLE MODE FROM 0.7 TO 14.4V ALSO OPERATES IN THE ADJUSTABLE MODE FROM 0.7 TO 14.4V
Analog Integrated Circuits - Other Types - SWITCHING REGULATOR SWITCHING REGULATOR
Control Technology - PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage - 16 V 16 V
Minimum input voltage - 1.5 V 1.5 V
Nominal input voltage - 12 V 12 V
JESD-30 code - R-XQCC-N15 R-XQCC-N15
JESD-609 code - e3 e3
length - 6 mm 6 mm
Humidity sensitivity level - 3 3
Number of functions - 1 1
Number of terminals - 15 15
Maximum operating temperature - 125 °C 125 °C
Minimum operating temperature - -40 °C -40 °C
Package shape - RECTANGULAR RECTANGULAR
Peak Reflow Temperature (Celsius) - 260 260
Maximum seat height - 1 mm 1 mm
Switch configuration - BUCK BUCK
Temperature level - AUTOMOTIVE AUTOMOTIVE
Terminal surface - MATTE TIN MATTE TIN
Maximum time at peak reflow temperature - 30 30
width - 5 mm 5 mm
Base Number Matches - 1 1
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