TPS61045

· Input Voltage Range . . . 1.8 V to 6.0 V
· Up to 85% Efficiency
· Digitally Adjustable Output Voltage Control
· Disconnects Output From Input During Shut- down
· Switching Frequency . . . Up to 1 MHz
· No Load Quiescent Current . . . 40 µA Typ
· Thermal Shutdown Mode
· Shutdown Current . . . 0.1 µA Typ
· Available in Small 3mm ´ 3mm QFN package

The TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. During shutdown the output is disconnected from the input by opening the internal input switch. This allows a controlled power up/down sequencing of the display. The output voltage of TPS61045 can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1MHz the TPS61045 allows the use of small external components and together,with the small 8-pin QFN package,a miminum system solution size is achieved.