SLVA341A Datasheet, PDF (3/9 Pages) Texas Instruments – High-Efficiency Power Solution Using DC/DC Converter With DVFS

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3 Features
The design uses the following high-efficiency DC/DC Converter with integrated FETs .
INPUT VOLTAGE
COMBINE RTC AND STATIC 1.2
Core 1.2 V at 600 mA
Static 1.2 V + VRTC at 251 mA
Static 1.8 V at 230 mA
Static 3.3 V at 115 mA
~5V
HIGH EFFICIENCY AND
INTEGRATION
(w DVFS)
TPS62353
TPS62232
TPS62231
TPS71733 (DRV)
Features
Here VRTC is included in the STATIC12 (fixed 1.2 V) group.
TPS62353
• 88% Efficiency at 3-MHz Operation
• Output Peak Current up to 800 mA
• 3-MHz Fixed Frequency Operation
• Best in Class Load and Line Transient
• ±2% PWM DC Voltage Accuracy
• Efficiency Optimized Power-Save Mode
• Transient Optimized Power-Save Mode
• Fixed 1.2-V output eliminates need for external voltage-setting resistors
• Available in a 10-Pin QFN (3 × 3 mm) 12-Pin NanoFree™ (CSP) Packaging
TPS62231 and TPS62232
• 3 MHz switch frequency
• Up to 94% efficiency
• Output Peak Current up to 500mA
• Small External Output Filter Components (1 µH/ 4.7 µF)
• Small 1 × 1,5 × 0,6-mm 3 SON Package
• Fixed 1.8V and 1.2V output respectively eliminates need for external voltage-setting resistors
TPS71733
• 150-mA Low-Dropout Regulator with Enable
• Low Noise: 30 mV typical (100 Hz to 100 kHz)
• Excellent Load/Line Transient Response
• Small SC70-5, 2-mm × 2-mm SON-6, and 1,5-mm × 1,5-mm SON-6 Packages
More information on the devices can be found from the data sheets:
• TPS62353, http://focus.ti.com/lit/ds/symlink/tps62350.pdf
• TPS71733, http://focus.ti.com/lit/ds/symlink/tps71733.pdf
• TPS62231 and TPS62232, http://focus.ti.com/lit/ds/symlink/tps62230.pdf
SLVA341A – June 2009 – Revised May 2010
High-Efficiency Power Solution Using DC/DC Converter With DVFS
3
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