TPS60401DBVT

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TPS60401DBVT

60mA Charge Pump Voltage Inverter with Fixed 20kHz Operation

Packaging

Package | PIN: DBV | 5
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.06
10-24 $0.95
25-99 $0.88
100-249 $0.75
250-499 $0.69
500-749 $0.56
750-999 $0.45
1000+ $0.40

Features

  • 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 65 µA
  • Integrated Active Schottky-Diode for
    Start-up Into Load
  • Small 5-Pin SOT-23 Package
  • Evaluation Module Available
    TPS60400EVM-178

Texas Instruments  TPS60401DBVT

The TPS6040x family of devices generates 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 SOT-23 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.

The TPS6040x can deliver a maximum output current of 60 mA with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options with 20-kHz, 50-kHz, and 250-kHz fixed-frequency operation are available. TPS60400 comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.