1FEATURES
• 2.5 V to 4.8 V Input Voltage Range
• 0.8% Output Voltage Accuracy V POS
• Excellent Line Transient Regulation
• 250 mA Output Current
• Fixed 4.6 V V POS Output Voltage
• Digitally Programmable VNEG, –2.2V to –5.2V
• –4.9V Default Value for VNEG
• Short Circuit Protection
• Thermal Shutdown
• 3mm × 3mm 10-Pin QFN Package

APPLICATIONS
• Active Matrix OLED

DESCRIPTION
The TPS65137AS is designed to drive AMOLED
displays (Active Matrix Organic Light Emitting Diode)
requiring positive and negative voltage supply rails.
The device integrates a boost converter with LDO
post regulator and an inverting buckboost converter
suitable for battery operated products. The digital
control pin (CTRL) allows programming the negative
output voltage in digital steps. The TPS65137AS
uses a novel technology enabling excellent line and
load regulation. This is required to avoid disturbance of the AMOLED display by the input voltage
disturbances occurring during transmit periods in
mobile phones.