TPS62260-Q1, TPS62261-Q1
TPS62262-Q1, TPS62263-Q1
www.ti.com
SLVSA16C –AUGUST 2009–REVISED JULY 2012
2.25-MHz 600-mA STEP-DOWN CONVERTERS
Check for Samples: TPS62260-Q1, TPS62261-Q1, TPS62262-Q1, TPS62263-Q1
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FEATURES
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Qualified for Automotive Applications
High-Efficiency Step-Down Converter
Output Current up to 600 mA
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Soft Start
Voltage Positioning at Light Loads
Available in a Small 2×2×0,8-mm SON Package
Allows <1-mm Solution Height
Wide VIN Range from 2-V to 6-V for Li-Ion
Batteries with Extended Voltage Range
APPLICATIONS
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2.25-MHz Fixed Frequency Operation
Power Save Mode at Light Load Currents
Output Voltage Accuracy in PWM Mode ±1.5%
15-μA (Typ) Quiescent Current
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PDAs, Pocket PCs
Low Power DSP Supply
Portable Media Players
POL applications
100% Duty Cycle for Lowest Dropout
DESCRIPTION
The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery
powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power
mobile phones and other portable applications.
With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with
extended voltage range, two and three cell alkaline batteries, 3.3-V and 5-V input voltage rails.
The TPS6226x operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light
load currents to maintain high efficiency over the entire load current range.
The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be
forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current
consumption is reduced to less than 1 μA. TPS6226x allows the use of small inductors and capacitors to achieve
a small solution size.
The TPS6226x is available in a very small 2×2mm 6-pin SON package.
100
90
80
70
60
50
40
30
20
L
TPS62260DRV
VIN = 2V to 6V
VIN = 2.3 V
VIN = 2.7 V
Up to 600mA
2.2 mH
V
V
IN
SW
FB
OUT
C
1
22 pF
C
C
R
OUT
IN
1
EN
V
IN = 3 V
10 mF
4.7 mF
VIN = 3.6 V
VIN = 4.5 V
GND
R
2
MODE
VOUT = 1.8 V,
MODE = GND,
L = 2.2 mH,
DCR 110 mR
10
0
0.01
0.1
1
10
100
1000
IO - Output Current - mA
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009–2012, Texas Instruments Incorporated