TPS61086DRCR - 18.5V 2A Boost Converter 1.2MHz | Texas Instruments
MPN: TPS61086DRCR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.35 | $2.35 |
| 10 | $2.12 | $21.20 |
| 100 | $1.79 | $179.00 |
| 500 | $1.52 | $760.00 |
| 1,000 | $1.28 | $1,280.00 |
Drop-in alternatives for TPS61086DRCR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TPS61085DRCR
β Drop-Inπ Reference alternative (not in catalog)
TPS61080DRCR
β Drop-Inπ Reference alternative (not in catalog)
TPS61200DRCR
β‘ Same Packageπ Reference alternative (not in catalog)
TPS61086DRCR Maximum Ratings & Electrical Characteristics
| Topology | Boost (Step-Up) |
| Input Voltage Range | 2.3 V to 6.0 V |
| Maximum Output Voltage | 18.5 V |
| Switch Current Limit | 2.0 A |
| Switch On-Resistance | 0.13 ohm |
| Switching Frequency | 1.2 MHz |
| Control Architecture | Current-mode PWM with power save mode |
| Output Type | Adjustable (2.8 V minimum setpoint) |
| Number of Outputs | 1 |
| Soft-Start | Adjustable |
| Protections | Thermal shutdown |
| Operating Temperature | -40C to +85C |
| Package | 10-VFDFN / VSON (DRC) with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lifecycle Status | Active |
TPS61086DRCR Pin Configuration
| Pin 1 | SW β Switch node - connect to inductor |
| Pin 2 | SW β Switch node - connect to inductor |
| Pin 3 | GND β Ground |
| Pin 4 | FB β Feedback input for output voltage adjustment |
| Pin 5 | COMP β Loop compensation |
| Pin 6 | SS β Soft-start programming pin |
| Pin 7 | VIN β Input supply (2.3 V to 6.0 V) |
| Pin 8 | EN β Enable input |
| Pin 9 | PSAVE β Power save mode control |
| Pin 10 | PGND β Power ground |
| Pin PAD | Thermal Pad β Exposed pad - solder to ground plane for thermal dissipation |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPS61086DRCR is suitable for 6 applications: Battery-Powered Portable Devices, White LED Driver, OLED Display Bias, Industrial Auxiliary Power, Audio Equipment Bias Supply, Handheld Instrument Power.
Battery-Powered Portable Devices
The TPS61086DRCR boosts a single Li-Ion cell (2.3-V minimum input covers deep discharge) to system rails up to 18.5 V. Its 1.2-MHz current-mode PWM provides fast transient response for burst-mode loads such as wireless transmitters, and power save mode maintains efficiency at standby currents. Adjustable soft-start limits battery inrush during startup, protecting connectors and fuses in handheld and portable equipment.
Recommended
White LED Driver
White LED strings often need 10-18 V forward voltage from a 3.7-V battery. The TPS61086DRCR reaches 18.5 V output with a 2.0-A switch, supplying LED bias from small inductors thanks to 1.2-MHz operation. Fixed-frequency forced PWM mode avoids low-frequency flicker visible to the eye, while its 0.13-ohm switch keeps conduction losses low for high-brightness flash and illumination designs.
Recommended
OLED Display Bias
OLED panels require elevated bias rails above the battery voltage. The TPS61086DRCR generates up to 18.5 V from 2.3-6.0 V input, covering typical OLED anode requirements. The exposed-pad VSON-10 package dissipates switching losses efficiently, and thermal shutdown protects the panel supply during fault conditions. Small ceramic output capacitors enabled by 1.2-MHz switching keep the power section thin enough for slim display assemblies.
Recommended
Industrial Auxiliary Power
In industrial systems, a 3.3-V or 5-V logic rail is often available while sensors, op-amps, or interface circuits need higher voltages. The TPS61086DRCR steps 5 V up to 12-18 V for bias supplies, and its current-mode control simplifies loop compensation. The -40C to +85C operating range covers factory floor conditions, and thermal shutdown plus adjustable soft-start support robust hot-swap behavior on auxiliary boards.
Recommended
Audio Equipment Bias Supply
Headphone amplifiers and audio front ends frequently need 10-15 V rails from a single Li-Ion cell. The TPS61086DRCR delivers these rails with forced-PWM mode ensuring constant switching frequency that keeps ripple at predictable high frequencies, easy to filter before sensitive analog stages. Its 18.5-V ceiling and 2.0-A switch support mid-power class-AB amplifiers where a boost converter provides the main analog supply.
Recommended
Handheld Instrument Power
Portable test and measurement instruments combine a battery with mixed-voltage subsystems such as display backlighting, sensor excitation, and RF front ends. The TPS61086DRCR supplies a high bias rail up to 18.5 V while its 1.2-MHz switching keeps magnetics small for handheld enclosures. Adjustable soft-start staggers power-up of subsystems, and power save mode extends battery life between charges in intermittent-use instruments.
Recommended
Recommended Products Summary
Engineering reference data for TPS61086DRCR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS61085DRCR | TPS61080DRCR | TPS61200DRCR |
|---|---|---|---|---|
| Package | VSON-10 (DRC) exposed pad | VSON-10 (DRC) - same footprint | VSON-10 (DRC) - same footprint | VSON-10 (DRC) - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Max Output Voltage | 18.5 V | [DATA_NEEDED] | 18 V class | 5.5 V |
| Switch Current Limit | 2.0 A | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Switching Frequency | 1.2 MHz | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Input Voltage Range | 2.3 V to 6.0 V | [DATA_NEEDED] | [DATA_NEEDED] | Similar low-voltage battery range |
| Power Save Mode | Yes, with forced PWM option | Yes | Yes | Yes (power-save burst mode) |
| Drop-in Capability | Reference part | Pin-compatible, lower power rating | Pin-compatible, verify ratings | Same package, power stage redesign required |
Key Differentiators
- Highest output voltage in the family (vs TPS61085DRCR)
- Higher switch current for more output power (vs TPS61085DRCR)
- Forced-PWM option for predictable noise (vs TPS61200DRCR)
Design Notes
Place the input capacitor and inductor as close as possible to the SW and VIN pins with short, wide traces to minimize parasitic inductance in the high-di/dt switch loop. Solder the exposed thermal pad to a large ground copper area with multiple vias to the ground plane - this is both the thermal and the power ground return for the 2.0-A switch current. Follow the layout guidelines in the TI TPS61086 datasheet application section.
Select an inductor whose saturation current exceeds the 2.0-A switch current limit with margin. An inductor that saturates at peak current causes abrupt current spikes, efficiency loss, and possible thermal shutdown. Prefer shielded, low-DCR inductors in the few-microhenry range suited to 1.2-MHz operation, and verify RMS current rating against your actual load using the TI datasheet design equations.
Power dissipation is dominated by switch conduction (I^2 x 0.13 ohm) plus switching losses at 1.2 MHz. At high boost ratios the peak switch current grows quickly; estimate junction temperature with the DRC package thermal resistance and the exposed-pad copper area. If TJ approaches the thermal shutdown threshold, reduce load, improve airflow, or increase copper area. Verify operation over the full -40C to +85C ambient range.
Compliance Information
RoHS compliance per DigiKey listing of TPS61086DRCR. Non-automotive commercial/industrial grade product page.
