TPS60403QDBVRQ1

Description
The TPS60403QDBVRQ1 is an unregulated charge-pump Voltage Inverter generates an unregulated negative output voltage from an input voltage ranging from 1.6 to 5.5V.
The device is typically supplied by a pre-regulated supply rail of 5/3.3V. 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 it. Only three external 1µF capacitors are required to build a complete DC/DC charge-pump inverter. 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 60mA with a typical conversion efficiency of greater than 90% over a wide output current range. One device 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.
Features
• Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the FollowingResults:– 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 Application
• Automotive Infotainment
• Automotive Cluster
• LCD Displays
• Negative Supply Voltages