Description
●The TPS6040x-Q1 family of devices generate an unregulated negative output voltage from an input voltage ranging from 1.8 V to 5.25 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. Replacing the Schottky diode typically needed for start-up into load with integrated circuitry can achieve additional board area and component count reduction.
●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
● – Device HBM ESD Classification Level 2
● – Device CDM ESD Classification Level C6
●• Inverts Input Supply Voltage
●• Up to 60-mA Output Current
●• Only Three Small 1-µF Ceramic Capacitors Needed
●• Input Voltage Range From 1.8 V to 5.25 V
●• PowerSave-Mode for Improved Efficiency at Low Output Currents (TPS60400-Q1)
●• 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
●• Automotive Infotainment
●• Automotive Cluster
●• LCD Displays
●• Negative Supply Voltages
