TPS60402 Series

60mA Charge Pump Voltage Inverter with Fixed 50kHz Operation

Catalog

60mA Charge Pump Voltage Inverter with Fixed 50kHz Operation

Part	Voltage - Input (Min)	Voltage - Input (Max)	Output Configuration	Function	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Frequency - Switching	Output Type	Mounting Type	Package Name	Operating Temperature (Max)	Operating Temperature (Min)	Current - Output	Number of Outputs	Topology
Texas Instruments TPS60402DBVR	1.8 V	5.25 V	Negative Positive Positive or Negative	Ratiometric	No	-Vin 2Vin Vin/2	50 kHz	Fixed	Surface Mount	SOT-23-5	125 °C	-40 °C	60 mA	1	Charge Pump
Texas Instruments TPS60402DBVT	1.8 V	5.25 V	Negative Positive Positive or Negative	Ratiometric	No	-Vin 2Vin Vin/2	50 kHz	Fixed	Surface Mount	SOT-23-5	125 °C	-40 °C	60 mA	1	Charge Pump
Texas Instruments TPS60402DBVTG4	1.8 V	5.25 V	Negative Positive Positive or Negative	Ratiometric	No	-Vin 2Vin Vin/2	50 kHz	Fixed	Surface Mount	SOT-23-5	125 °C	-40 °C	60 mA	1	Charge Pump
Texas Instruments TPS60402DBVRG4	1.8 V	5.25 V	Negative Positive Positive or Negative	Ratiometric	No	-Vin 2Vin Vin/2	50 kHz	Fixed	Surface Mount	SOT-23-5	125 °C	-40 °C	60 mA	1	Charge Pump

Catalog

60mA Charge Pump Voltage Inverter with Fixed 50kHz Operation

Description

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-mm2board 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. 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-mm2board 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.