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TPS61240, TPS61241
SLVS806D – APRIL 2009 – REVISED DECEMBER 2015
TPS6124x 3.5-MHz High Efficiency Step-Up Converter
1 Features
3 Description
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The TPS6124x device is a highly efficient
synchronous step-up DC-DC converter optimized for
products powered by either a three-cell alkaline, NiCd
or NiMH, or one-cell Li-Ion or Li-Polymer battery. The
TPS6124x supports output currents up to 450 mA.
The TPS61240 has an input valley current limit of 500
mA, and the TPS61241 has an input valley current of
600 mA.
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Efficiency > 90% at Nominal Operating Conditions
Total DC Output Voltage Accuracy 5.0 V±2%
Typical 30-μA Quiescent Current
Best in Class Line and Load Transient
Wide VIN Range From 2.3 V to 5.5 V
Output Current up to 450 mA
Automatic PFM/PWM Mode Transition
Low Ripple Power Save Mode for Improved
Efficiency at Light Loads
Internal Softstart, 250-μs Typical Start-Up Time
3.5-MHz Typical Operating Frequency
Load Disconnect During Shutdown
Current Overload and Thermal Shutdown
Protection
Three Surface-Mount External Components
Required (One MLCC Inductor, Two Ceramic
Capacitors)
Total Solution Size
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