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Product Information
Features
Qualified for Automotive Applications
Inverts Input Supply Voltage
Up to 60-mA Output Current
Only Three Small 1-µF Ceramic Capacitors Needed
Input Voltage Range From 1.6 V to 5.5 V
PowerSave-Mode for Improved Efficiency at Low Output Currents (TPS60400)
Device Quiescent Current Typical 100 µA
Integrated Active Schottky-Diode for Start-Up Into Load
Small 5-Pin SOT23 Package
Evaluation Module Available TPS60400EVM-178
applications
LCD Bias
GaAs Bias for RF Power Amps
Sensor Supply in Portable Instruments
Bipolar Amplifier Supply
Description
The TPS6040x is a family of devices that generate an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power them.
Only three external 1-µF capacitors are required to build a complete dc/dc charge pump inverter. Assembled in a 5-pin SOT23 package, the complete converter can be built on a 50-mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.
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Inventory
Reported Distributor Inventory as of 10:12 AM GMT, 26 Nov 2009
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
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