**Description** The TPS61150/1 is a high-frequency boost converter with two regulated current outputs for driving WLEDs. Each current output can be individually programmed through external resistors. There is a dedicated selection pin for each output, so the two outputs can be turned on separately or simultaneously. The output current can be reduced by a pulse width modulation (PWM) signal on the select pins or an analog voltage on the ISET pins, resulting in PWM dimming of the WLEDs. The boost regulator runs at a 1.2-MHz fixed switching frequency to reduce output ripple and avoid audible noises associated with PFM control. The two current outputs are ideal for driving WLED backlights for the sub- and main displays in clamshell phones. The two outputs can also be used for driving display and keypad backlights. When used together, the two outputs can drive up to 14 WLEDs for one large display. **Features** 2.5-V to 6-V Input Voltage Range Two Outputs Each up to 27 V 0.7-A Integrated Switch Built-In Power Diode 1.2-MHz Fixed PWM Frequency Individually Programmable Output Current Input-to-Output Isolation Built-In Soft Start Overvoltage Protection Up to 83% Efficiency Up to 30-kHz PWM Dimming Frequency Available in a 10-Pin, 3- × 3-mm QFN Package APPLICATIONS Sub and Main Display Backlight in Clam Shell Phones Display and Keypad Backlight Up to 14 WLED Driver