Texas Instruments TPS60800-Q1 Charge Pump Voltage Inverter
Texas Instruments TPS60800-Q1 Charge Pump Voltage Inverter generates an unregulated negative output voltage from a 1.8V to 5.25V input voltage range. The devices are typically supplied by a preregulated supply rail of 5V or 3.3V. As TPS60800-Q1 supports a wide input voltage range, two or three NiMH, NiCd, or alkaline battery cells and one Li-Ion cell can also power the device.
A complete DC-DC charge pump inverter can be built with only three external 1µF capacitors. Assembled in a 6-pin SOT563 package, the complete converter can be built on a 40mm2 board area. Integrated circuitry replaces the Schottky diode typically needed for start-up into load, reducing board area and component count.
The Texas Instruments TPS60800-Q1 can deliver a maximum output current of 200mA with a typical conversion efficiency greater than 90% over a wide output current range. TPS60800-Q1 enables the design with low-value capacitors and comes with a variable switching frequency to reduce operating current in applications with a wide load range.
Features
- Qualified for automotive applications
- AEC-Q100 test guidance with a device temperature grade 1 (–40°C to +125°C ambient operating temperature range)
- Inverts the input supply voltage
- Up to 200mA output current
- Only three small 1µf ceramic capacitors are needed
- Input voltage range from 1.8V to 5.25V
- Device quiescent current is typically 340µA
- PowerSave mode for improved efficiency at low output currents
- Efficiency greater than 90% over a wide output current range
- Integrated active Schottky diode for start-up into the load
- Available in a 6-pin SOT-563 package
- Next generation of TPS60400-Q1
Applications
- Automotive infotainment
- Automotive cluster
- LCD bias
- Operational amplifier supply
- Onboard charger
- Humanoid robot position sensor
Evaluation Module
Texas Instruments TPS60800EVM-068 Evaluation Module
Configured to evaluate the operation of the TPS60800-Q1 charge pump voltage inverter.
Functional Block Diagram
