Boost driver for LED backlight — active and in production
The TPS61160ADRVT: It integrates a 700 mA (switch) power FET and uses a current-mode, fixed-frequency 600 kHz PWM control scheme. The 2.7 V to 18 V input range covers single-cell Li-Ion through 12 V automotive rails, and the 26 V output ceiling supports strings of up to six or seven series-wired white LEDs.
600 kHz switching and PWM dimming — inductor and brightness trade-offs
PWM dimming gives a linear brightness control range from near-zero to full current without the colour shift that analogue dimming can introduce. The PWM input interfaces directly with a microcontroller GPIO or a PWM backlight controller.
26 V output and 700 mA switch — sizing the LED load
The 26 V output and integrated 700 mA switch define the maximum LED load: a string of six white LEDs at 20 mA each is well within the budget, leaving headroom for the LED forward-voltage tolerance and temperature drift. For higher current strings, the switch current limit sets the ceiling — derate for inductor ripple and ambient temperature per the datasheet curves. The single output drives one string; multiple strings require external current balancing or a separate driver per channel.
Package and thermal: 6-WSON with exposed pad
The small footprint suits space-constrained backlight boards in portable displays, automotive centre stacks, and industrial control panels.
Active lifecycle — no discontinuation notice, no last-time-buy deadline. The TPS61160ADRVT is a standard catalog device from Texas Instruments, available through the independent distribution channel.