1 Features

• Adjustable Output Voltage Down to –15 V
• 2.7-V to 5.5-V Input Voltage Range
• Up to 360-mA Output Current
• 1000-mA Typical Switch Current Limit
• Up to 84% Efficiency
• Typical 1.4-MHz Fixed-Frequency PWM
  Operation
• Thermal Shutdown
• Typical –19-V Output Overvoltage Protection
• 1.5-μA Shutdown Current
• Small 3-mm × 3-mm SON-10 Package (DRC)

2 Applications

• Generic Negative Voltage Supply
• Small-to-Medium Size OLED Displays
• Bias Supply

Efficiency vs Output Current

3 Description

The TPS63700 is an inverting DC/DC converter generating a negative output voltage down to –15 V with output currents up to 360 mA, depending on input-voltage to output-voltage ratio. With a peak efficiency of 84%, the device is ideal for portable battery-powered equipment. The input voltage range of 2.7 V to 5.5 V allows the TPS63700 to be directly powered from a Li-ion battery, from 3-cell NiMH/NiCd, from a 3.3-V or 5-V supply rail.

The inverter operates with a fixed-frequency pulse width modulation (PWM) control topology. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions.

A switching frequency of typically 1.4 MHz allows the use of small external components enabling a small solution size.

The TPS63700 comes in a small 3-mm × 3-mm SON-10 package.

1. For all available packages, see the orderable addendum at the end of the datasheet.

Typical Application Schematic