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TPS62243DRVTG4 Datasheet(PDF) 1 Page - Texas Instruments

No. de Pieza. TPS62243DRVTG4
Descripción  2.25 MHz 300 mA Step Down Converter in 2x2SON/TSOT23 Package
Descarga  29 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS62243DRVTG4 Datasheet(HTML) 1 Page - Texas Instruments

 
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1
FEATURES
DESCRIPTION
APPLICATIONS
VIN
GND
EN
FB
SW
TPS62243DRV
L1
2.2µH
CIN
4.7µF
COUT
10µF
VOUT 1.8V
Upto300mA
MODE
VIN 2.0V to 6V
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
I
-OutputCurrent-mA
O
V =2V
I
V =4.5
I
V =3.6
I
V =4.5
I
V =3V
I
V =2.7
I
V =2V
I
V =1.8V,
MODE=GND,
L =2.2 H,
DCR110m
O
m
TPS62240, TPS62242, TPS62243
SLVS762B – JUNE 2007 – REVISED SEPTEMBER 2007
www.ti.com
2.25 MHz 300 mA Step Down Converter in 2x2SON/TSOT23 Package
23
• High Efficiency Step Down Converter
• Output Current up to 300 mA
The
TPS62240
device
is
a
high
efficiency
synchronous step down dc-dc converter optimized for
• V
IN Range From 2 V to 6 V for Li-Ion Batteries
battery powered portable applications. It provides up
With Extended Voltage Range
to 300 mA output current from a single Li-Ion cell and
• 2.25 MHz Fixed Frequency Operation
is ideal to power portable applications like mobile
• Power Save Mode at Light Load Currents
phones and other portable equipment..
• Output Voltage Accuracy in PWM Mode ±1.5%
With an input voltage range of 2 V to 6 V, the device
supports applications powered by Li-Ion batteries with
• Adjustable Output Voltage from 0.6 V to V
IN
extended voltage range, two- and three-cell alkaline,
• Typical 15 µA Quiescent Current
3.3-V and 5-V input voltage rails.
• 100% Duty Cycle for Lowest Dropout
The TPS62240 operates at 2.25 MHz fixed switching
• Available in a TSOT23 and 2×2×0,8 mm SON
frequency and enters Power Save Mode operation at
• Allows < 1 mm Solution Height
light load currents to maintain high efficiency over the
entire load current range.
The Power Save Mode is optimized for low output
• Bluetooth™ Headset
voltage ripple. For low noise applications, the device
• Cell Phones, Smart-phones
can be forced into fixed frequency PWM mode by
pulling the MODE pin high. In the shutdown mode,
• WLAN
the current consumption is reduced to less than 1
µA.
• PDAs, Pocket PCs
TPS62240 allows the use of small inductors and
• Low Power DSP Supply
capacitors to achieve a small solution size.
• Portable Media Players
The TPS62240 is available in a 5-pin TSOT23 and
• Digital Cameras
6-pin 2mm
×2mm SON package.
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.
2
PowerPAD is a trademark of Texas Instruments.
3
Bluetooth is a trademark of Bluetooth SIG, Inc..
PRODUCTION DATA information is current as of publication date.
Copyright © 2007, 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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