Skip to main content
Texas Instruments TPS61085PWR — DC-DC Power Modules

TPS61085PWR Boost Converter, 2A Switch, 650kHz/1.2MHz

MPNTPS61085PWR
Active

Texas Instruments TPS61085PWR, Step-Up Boost Converter, Adjustable Output, 2A Switch, 650kHz/1.2MHz, 8-TSSOP, -40°C to 85°C.

$2.2100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS61085PWR specifications
ParameterValue
Output typeAdjustable
MountingSurface Mount
Voltage - input2.3V
Voltage - output18.5V
Voltage - output (Min (Fixed))2.8V
Output current2A (Switch)
Frequency - switching650kHz, 1.2MHz
I/O channels1
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Up
TopologyBoost
Case8-TSSOP (0.173\", 4.40mm Width)
Output configurationPositive
Synchronous rectifierNo

Product details

2A switch current — the output power ceiling

The TPS61085PWR is a step-up (boost) converter from Texas Instruments with a 2A integrated switch. That 2A rating is the peak current the internal N-channel MOSFET can handle, not the continuous output current.

Selectable switching frequency — inductor vs efficiency trade-off

The TPS61085PWR lets you choose between 650 kHz and 1.2 MHz switching frequency via a logic pin. At 1.2 MHz you can use a smaller inductor, which shrinks the board footprint.

Industrial temperature range — where it fits

It does not carry AEC-Q100 automotive qualification, so it is not specified for under-hood or chassis-mounted applications where the ambient exceeds 85°C. For a 12V rail in a factory sensor module or a white-LED backlight driver in an outdoor display, this temperature grade is a solid fit.

That means no last-time-buy notice is pending and no imminent obsolescence risk for production BOMs.

Frequently asked questions

Does TPS61085PWR require external compensation?

Yes — the TPS61085PWR uses external compensation components (a resistor and capacitor from the COMP pin to GND) to set the loop stability. The values depend on the output capacitor ESR and inductor selection; the datasheet provides a design procedure.