Datasheet
1
FEATURES
DESCRIPTION
APPLICATIONS
TPS62290DRV
V 2.7Vto6V
IN
R
360k
1
W
V 1.8V,
1000mA
OUT
R
180k
2
W
V
IN
GND
EN
FB
SW
C
10 F
OUT
m
MODE
C
10 F
IN
m
L1
2.2 Hm
C
22pF
1
30
40
50
60
70
80
90
100
0.00001 0.0001 0.001 0.01 0.1 1
I -OutputCurrent- A
O
Efficiency-%
V =4.2V
IN
V =3.8V
IN
V =5V
IN
V =4.5V
IN
V =3.3V,
MODE=GND,
L =2.2 H
OUT
m
TPS62290 , TPS62291 , TPS62293
SLVS764C – JUNE 2007 – REVISED MARCH 2008
www.ti.com
1-A Step Down Converter in 2 x 2 SON Package
• High Efficiency Step Down Converter
• Output Current up to 1000 mA
The TPS6229x device is a highly efficient
synchronous step down dc-dc converter optimized for
• V
IN
Range From 2.3 V to 6 V
battery powered portable applications. It provides up
• 2.25 MHz Fixed Frequency Operation
to 1000-mA output current from a single Li-Ion cell.
• Power Save Mode at Light Load Currents
With an input voltage range of 2.3 V to 6 V, the
• Output Voltage Accuracy in PWM mode ± 1.5%
device supports batteries with extended voltage
• Fixed Output Voltage Options
range and are ideal to power portable applications
like mobile phones and other portable equipment.
• Typ. 15- µ A Quiescent Current
The TPS6229x operates at 2.25-MHz fixed switching
• 100% Duty Cycle for Lowest Dropout
frequency and enters Power Save Mode operation at
• Voltage Positioning at Light Loads
light load currents to maintain high efficiency over the
• Available in a 2 × 2 × 0,8 mm SON Package
entire load current range.
The Power Save Mode is optimized for low output
voltage ripple. For low noise applications, the device
• Cell Phones, Smart-phones
can be forced into fixed frequency PWM mode by
• WLAN
pulling the MODE pin high. In the shutdown mode,
• PDAs, Pocket PCs
the current consumption is reduced to less than 1 µ A.
The TPS6229x allows the use of small inductors and
• Low Power DSP Supply
capacitors to achieve a small solution size.
• Portable Media Players
The TPS6229x is available in a 2-mm × 2-mm 6-pin
• POL
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.
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.