TPS62242-Q1 Datasheet, PDF (1/21 Pages) Texas Instruments – 2.25-MHz 300-mA Step-Down Converter in DDC/TSOT23 Package

TPS62242-Q1
www.ti.com
SLVSB38A – MARCH 2011 – REVISED MARCH 2012
2.25-MHz 300-mA Step-Down Converter in DDC/TSOT23 Package
Check for Samples: TPS62242-Q1
FEATURES
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•23 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following
Results:
– Device Temperature Grade 2
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• High Efficiency – Greater than 94%
• Output Current up to 300 mA
• V_IN Range From 2 V to 6 V
• 2.25-MHz Fixed-Frequency Operation
• Power-Save Mode at Light Load Currents
• Output Voltage Accuracy in PWM Mode ±1.5%
• Adjustable Output Voltage from 0.6 V to V_IN
• Typical 15 μA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Available in a TSOT23 Package
• Allows < 1-mm Solution Height
APPLICATIONS
• Automotive Applications
• Bluetooth™ Headset
• Cell Phones, Smart-Phones
• WLAN
• Low-Power DSP Supply
• Portable Media Players
DESCRIPTION
The TPS62242-Q1 device is a high-efficiency
synchronous step-down dc-dc converter optimized for
battery-powered portable applications. It provides up
to 300 mA of output current from a single Li-Ion cell
and is ideal to power portable applications like mobile
phones and other portable equipment.
With an 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,
3.3-V and 5-V input voltage rails.
The TPS62242-Q1 operates at 2.25-MHz fixed
switching frequency and enters the power-save mode
of 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. In the shutdown mode, the current
consumption is reduced to less than 1 μA.
TPS62242-Q1 allows the use of small inductors and
capacitors to achieve a small solution size.
The TPS62242-Q1 is available in a 5-pin TSOT23
package.
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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.
PowerPAD is a trademark of Texas Instruments.
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Bluetooth is a trademark of Bluetooth SIG, Inc..
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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 © 2011–2012, Texas Instruments Incorporated