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TPS62273DRVT Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS62273DRVT
Description  2.25 MHz 400-mA Step Down Converter With Selectable VOUT
Download  23 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS62273DRVT Fiches technique(HTML) 1 Page - Texas Instruments

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1
FEATURES
DESCRIPTION
APPLICATIONS
V
0.9V/1.15V
upto400mA
OUT
VIN
GND
EN
FB
TPS62270DRV
VSEL
L
2.2 H
m
SW
C
10 F
OUT
m
0.9V
1.15V
V =2Vto6V
IN
C
4.7 F
IN
m
GND
C
OUT
U
1
C
IN
V
OUT
V
IN
L
1
Totalarea
21.5mm²
6.5mm
TPS62270
TPS62273
www.ti.com................................................................................................................................................... SLVS799B – NOVEMBER 2007 – REVISED JUNE 2008
2.25 MHz 400-mA Step Down Converter With Selectable VOUT
• High Efficiency Step Down Converter
• Output Current up to 400 mA
The
TPS62270
device
is
a
high
efficiency
synchronous step down DC-DC converter optimized
• V
IN Range From 2V to 6V for Li-Ion Batteries
for battery powered portable applications. It provides
With Extended Voltage Range
up to 400 mA output current from a single Li-Ion cell.
• 2.25 MHz Fixed Frequency Operation
With an input voltage range of 2.0 V to 6 V the device
• Pin-Selectable Fixed Output Voltage
supports Li-Ion batteries with extended voltage range,
• Power Save Mode for Highest Efficiency
and is ideal to power portable applications like mobile
phones and other portable equipment.
• Automatic transition between PFM and PWM
Mode
The TPS62270 operates at 2.25 MHz fixed switching
• Voltage Positioning in PFM Mode
frequency and enters Power Save Mode operation at
light load currents to maintain high efficiency over the
• Typical 15-µA Quiescent Current
entire load current range. The Power Save Mode is
• 100% Duty Cycle for Lowest Dropout
optimized for low output voltage ripple.
• Available in 2×2×0,8 mm SON Package
With the VSEL pin, two different fixed output voltages
• Allows <1 mm Solution Height
can be selected. This function features a dynamic
voltage scaling for low power processor cores.
In the shutdown mode, the current consumption is
• Low Power Processor Supply
reduced to less than 1
µA. TPS62270 allows the use
• Cell Phones, Smart-phones
of small inductors and capacitors to achieve a small
• Navigation Systems
solution size.
• Low Power DSP Supply
The TPS62270 is available in a 2 mm × 2 mm, 6-pin
• Portable Media Players
SON package.
• Digital Cameras
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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