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Texas Instruments TPS61165TDBVRQ1 — DC-DC Power Modules

TPS61165TDBVRQ1 Automotive Boost LED Driver, 1.2MHz

MPNTPS61165TDBVRQ1
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Texas Instruments TPS61165TDBVRQ1, Automotive AEC-Q100 DC-DC Boost Regulator, 1.2MHz switching, 3V to 38V output, 1.2A switch, PWM dimming, SOT-23-6, -40°C to 105°C.

$2.5500Ref. price · indicative, final on quote
Texas Instruments TPS61165TDBVRQ1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS61165TDBVRQ1 specifications
ParameterValue
TypeDC DC Regulator
SeriesAutomotive, AEC-Q100
MountingSurface Mount
Voltage - output3V ~ 38V
Supply voltage18V
Current - output (Channel)1.2A (Switch)
Frequency1.2MHz
I/O channels1
Operating temperature-40°C~105°C(TA)
DimmingPWM
PackageTape & Reel (TR); Cut Tape (CT)
TopologyStep-Up (Boost)
ApplicationsAutomotive, Backlight
CaseSOT-23-6
Internal switchYes

Product details

Boost regulator for automotive LED strings

It integrates a 1.2A switch and supports an output voltage from 3 V up to 38 V, making it suitable for backlighting multiple LEDs in series without an external switching transistor.

Dimming and switching frequency

PWM dimming is supported directly, allowing the LED current to be modulated for brightness control without an external PWM generator. The single-output topology with internal switch simplifies the BOM: only the inductor, sense resistor, input/output caps, and a Schottky diode are needed to complete the converter. The 3 V minimum supply allows operation from a deeply discharged Li-ion cell or a 3 V rail.

Frequently asked questions

Is TPS61165TDBVRQ1 suitable for automotive backlight applications?

The boost topology with 38 V maximum output can drive a string of 8 to 10 white LEDs in series, and the PWM dimming input allows brightness control from the ECU.