1 Features

1• 2.9-V to 5.0-V Input Voltage Range

• Fixed 5.0-V Positive Output Voltage (V POS)

• Fixed –5.0-V Negative Output Voltage (VNEG)

• ±1% Output Voltage Accuracy

• High Efficiency

• 250-mA Output Current Capability

• Independent Converter Operation Allows 100%

Output Current Mismatch

• Excellent Line and Load Transient Response

• Operates in CCM to Minimize Output Noise

• Boost Converter able to Operate with Input Supply

Voltages close to 5.0 V

• Short-Circuit Protection

• Thermal Shutdown

2 Applications

• LCD Bias

• AMOLED Supplies

• Operational Amplifier Supplies

• Headphone Amplifier Supplies

• Sensor Front-End Supplies

• Data Acquisition Supplies

• General ±5-V Power Supplies

3 Description

The TPS65133 is designed to supply any system

requiring ±5.0-V supply rails. Each output can supply

up to 250 mA of output current. The input supply

voltage range is suitable for use with lithium ion

batteries or from a fixed 3.3-V supply.

Efficiency is typically over 90% for most applications

(operating from a lithium ion battery, output currents

in the range 50 mA to 200 mA). The two converters in

the TPS65133 device operate independently, allowing 100% mismatch between positive and

negative output currents.