1 Features

• Qualified for automotive applications

• AEC-Q100 test guidance with the following results:

– Device temperature grade 1: –40°C to +125°C

ambient operating temperature range

• Inverts input supply voltage

• Up to 200mA output current

• Only three small 1μf ceramic capacitors needed

• Input voltage range from 1.8V to 5.25V

• Device quiescent current typical 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

load

• Available in 6-pin SOT563 package

• Next generation of TPS60400-Q1

• Evaluation module available:

TPS60800Q1EVM-068

2 Applications

• Automotive infotainment

• Automotive cluster

• LCD bias

• Operational amplifier supply

• Onboard charger

• Humanoid robot position sensor

3 Description

The TPS60800-Q1 generates an unregulated

negative output voltage from an input voltage ranging

from 1.8V to 5.25V. The devices are typically supplied

by a preregulated supply rail of 5V or 3.3V. As

TPS60800-Q1 supports wide input voltage range, two

or three NiCd, NiMH, or alkaline battery cells, as well

as one Li-Ion cell can also power the device.

Only three external 1μF capacitors are required

to build a complete DC-DC charge pump inverter.

Assembled in a 6-pin SOT563 package, the complete

converter can be built on a 40mm2 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 TPS60800-Q1 can deliver a maximum output

current of 200mA with a typical conversion efficiency

of greater than 90% over a wide output current

range. TPS60800-Q1 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.