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TPS62562DRVR Datasheet(PDF) 1 Page - Texas Instruments

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No. de Pieza. TPS62562DRVR
Descripción  2.25-MHz, 600-mA Step-Down Converter in TSOT and 2- × 2- × 0,8-mm SON Package
Descarga  29 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS62562DRVR Datasheet(HTML) 1 Page - Texas Instruments

 
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1
FEATURES
APPLICATIONS
DESCRIPTION
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
V
=2.7V
IN
V
=3V
IN
V
=3.6V
IN
V
=4.5V
IN
V
=1.8V
MODE=GND
L =2.2 H
DCR110mR
OUT
m
I
– OutputCurrent – mA
OUT
VIN
GND
EN
FB
SW
TPS62560DRV
L
R1
R2
C
10 F
OUT
m
VOUT
C
4.7 F
IN
m
2.2 H
m
C
22pF
1
V
=2.5Vto5.5V
IN
Upto600mA
MODE
TPS62560
TPS62561, TPS62562
www.ti.com ........................................................................................................................................... SLVS815B – JANUARY 2008 – REVISED NOVEMBER 2008
2.25-MHz, 600-mA Step-Down Converter in TSOT and 2- × 2- × 0,8-mm SON Package
With a wide input voltage range of 2.5 V to 5.5 V, the
devices support applications powered by Li-Ion
• High-Efficiency Step-Down Converter
batteries with extended voltage range, two- and
• Output Current up to 600 mA
three-cell alkaline batteries, 3.3-V and 5-V input
voltage
rails.
They
operate
at
2.25-MHz
fixed
• Wide V
IN Range from 2.5 V to 5.5 V for Li-Ion
switching frequency and enter power-save mode
Batteries With Extended Voltage Range
operation at light load currents to maintain high
• Adjustable and Fixed Output-Voltage Options
efficiency over the entire load-current range.
• 2.25-MHz Fixed-Frequency Operation
The
power-save
mode
is
optimized
for
low
• Power-Save Mode at Light Load Currents
output-voltage ripple. For low-noise applications, the
• Output Voltage Accuracy in PWM Mode ±2.5%
devices can be forced into the fixed-frequency PWM
mode
by
pulling
the
MODE
terminal
high.
In
• Typical 15-µA Quiescent Current
shutdown mode, the current consumption is reduced
• 100% Duty Cycle for Lowest Dropout
to less than 1
µA. Switching at 2.25-MHz allows the
• Soft Start
use of small inductors and capacitors to achieve a
small solution size.
• Voltage Positioning at Light Loads
• Available in a Small TSOT, and
Operating in a forced fixed-frequency PWM mode,
2-mm × 2-mm × 0,8-mm SON Package
the TPS62561 devices allow simple filtering of the
switching
frequency,
e.g.,
for
noise-sensitive
• Allows < 1-mm Solution Height
applications.
TPS62560 and TPS62562 are available in a 2-mm ×
2-mm 6-terminal SON package, whereas TPS62561
• PDAs, Pocket PCs, Portable Media Players
is
available
in
a
5-terminal
TSOT23
package.
• Low-Power DSP Supply
Providing
a
fixed-output-voltage
version,
this
• POL Applications
TPS62562 enables a even smaller solution size with
no external resistors needed.
The TPS6256x devices are efficient synchronous
step-down
dc-dc
converters
optimized
for
battery-powered applications. They provide up to
600-mA output current from a single Li-Ion cell and
are ideal to power mobile phones and other portable
applications.
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 © 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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