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XRP6658ISTR-F

Description
2.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5
Categorysemiconductor    Analog mixed-signal IC   
File Size555KB,12 Pages
ManufacturerExar [Exar Corporation]
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XRP6658ISTR-F Overview

2.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5

XRP6658ISTR-F Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals5
Rated input voltage3.6 V
Maximum limit input voltage5.5 V
Minimum limit input voltage2.5 V
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Processing package descriptionGREEN, SOT-23, 5 PIN
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.9500 mm
terminal coatingMATTE TIN
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelINDUSTRIAL
control modePEAK CURRENT
Control TechnologyPULSE WIDTH MODULATION
Maximum output current2.3 A
Analog IC other typesSWITCHING REGULATOR
Rated regulated voltage0.6000 V
Switch configurationBUCK
Maximum switching frequency1800 kHz
X RP 6 6 5 8
1A 1.5MHz PFM/PWM Synchronous Step-Down Converter
September 2011
Rev. 1.5.0
GENERAL DESCRIPTION
The XRP6658 is a synchronous current mode
PWM step down (buck) converter capable of
delivering up to 1 Amp of current and
optimized
for
portable
battery-operated
applications.
Based on a current mode 1.5MHz constant
frequency PWM control scheme, the XRP6658
reduces the overall component count and
solution footprint as well as provides a low
output voltage ripple and excellent line and
load regulation. It also implements a PFM
mode to improve light load efficiency as well
as a 100% duty cycle LDO mode. Output
voltage is adjustable to as low as 0.6V with a
better than 3% accuracy while a low quiescent
current supports the most stringent battery
operating conditions.
Built-in over temperature and under voltage
lock-out protections insure safe operations
under abnormal operating conditions.
The XRP6658 is offered in a RoHS compliant,
“green”/halogen free 5-pin SOT23 package.
APPLICATIONS
Portable Equipments
Battery Operated Equipments
Audio-Video Equipments
Networking & Telecom Equipments
FEATURES
Guaranteed 1A Output Current
Input Voltage: 2.5V to 5.5V
1.5MHz PWM Current Mode Control
PFM Mode Operations at Light Load
100% Duty Cycle LDO Mode Operations
Achieves 97% Efficiency
Adjustable Output Voltage Range
As Low as 0.6V with ±3% Accuracy
Internal Compensation Network
15µA Quiescent Current
Over Temperature & UVLO Protections
RoHS Compliant “Green”/Halogen Free
5-Pin SOT23 Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: XRP6658 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001

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