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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Texas Instruments TPS61086DRCR

Name: TPS61086DRCR
Brand: Texas Instruments
SKU: TPS61086DRCR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS61086DRCR

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 10-VFDFN Exposed Pad

Datasheet:: TPS61086DRCR.pdf

Description:: IC REG BOOST ADJ 2A 10VSON

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TPS61086DRCR from Texas Instruments is a high-frequency, high-efficiency step-up DC-DC converter with integrated 2.0-A, 0.13-Ω N-channel MOSFET switch, fixed 1.2-MHz PWM operation, adjustable soft-start, and PFM/PWM mode selection via MODE pin. It delivers up to 18.5 V output from 2.3–6.0 V input and supports handheld device power rails requiring stable boost conversion.

For engineers reviewing the TPS61086DRCR datasheet, TPS61086DRCR pinout, TPS61086DRCR application, or TPS61086DRCR equivalent, key selection considerations include its externally compensated current-mode control architecture, thermal shutdown (150°C), undervoltage lockout (2.3 V), 10-pin VSON package, and dual-mode operation for efficiency optimization across load ranges.

Technical Context

The TPS61086DRCR implements a current-mode, quasi-constant-frequency boost topology with adaptive off-time control, enabling superior line and load transient response. Its transconductance error amplifier (107 μA/V) interfaces with external RC compensation on the COMP pin for stability tuning across varying output voltages and inductor values.

Functional modes are determined by the MODE pin: low enables PFM at light loads (maintaining >90% efficiency down to 1 mA), while high forces continuous PWM for noise-sensitive applications. Soft-start is controlled by a 10-μA constant-current ramp into an external capacitor on SS, limiting inrush current during enable.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.3 V to 6.0 V - supports single-cell Li-ion, Li-polymer, or triple-AA/AAA battery inputs without pre-regulation.
Output Voltage Range	Up to 18.5 V - enables TFT LCD bias, white LED strings, or RF front-end supply generation.
Switch Current Limit	2.0 A min - ensures reliable operation with 3.3 µH inductors and PMEG2010AEH Schottky diode in typical 3.3 V → 12 V designs.
Switching Frequency	1.2 MHz (typ) - allows use of compact 3.3 µH inductors and reduces EMI filtering burden.
Feedback Reference	1.238 V ±0.008 V - enables precise output voltage setting via resistor divider (e.g., R1 = 156 kΩ, R2 = 18 kΩ for 12 V).
Quiescent Current	100 µA (typ) - minimizes standby power loss in battery-powered GPS receivers and digital cameras.
Thermal Shutdown	150°C activation with 14°C hysteresis - protects against sustained overload or poor PCB thermal design.

Pinout & Package

TPS61086DRCR uses a 10-pin VSON (DRC) package measuring 3.00 mm × 3.00 mm with exposed thermal pad for enhanced power dissipation. Pin numbering follows top-view layout with pin 1 at top-left corner.

Pin/Terminal	Circuit Role	Design Meaning
COMP	Transconductance amplifier output	Connects external RC network (e.g., 68 kΩ + 1.2 nF) to stabilize loop response and optimize transient performance.
FB	Feedback input	Senses output voltage via resistor divider; regulates output to 1.238 V reference with ±0.008 V tolerance.
EN	Enable control	Logic-high (>2 V) enables converter; logic-low (<0.5 V) disables with 1 µA shutdown current.
AGND	Analog ground reference	Separate ground return for feedback and compensation circuitry to minimize noise coupling.
PGND	Power ground	High-current return path for switch node and inductor; must be routed separately from AGND and tied at single point.
SW	Switch node	Drives external inductor and Schottky diode; handles peak currents up to 3.2 A with 0.13 Ω on-resistance.
IN	Input supply	Accepts 2.3–6.0 V input; requires local 1 µF ceramic bypass and bulk 10 µF ceramic capacitor.
MODE	Operation mode select	Pull low for PFM (high efficiency at light load); pull high for forced PWM (fixed frequency, lower noise).
SS	Soft-start control	Charged by 10 µA internal current source; 100 nF capacitor yields ~10 ms soft-start time to limit inrush.
Thermal Pad	Junction-to-board thermal path	Must be soldered to PCB copper pour; provides 29.6 °C/W junction-to-board thermal resistance.

Key Features

Feature	Design Value
Externally compensated control loop	Enables stability optimization across wide output voltage (5–18.5 V) and inductor (3.3–6 µH) ranges using COMP pin RC network.
Adjustable soft-start	100 nF capacitor on SS pin limits peak inductor current ramp, preventing input rail collapse during startup in portable cameras.
Dual-mode PFM/PWM operation	PFM maintains >90% efficiency at 1 mA load; forced PWM eliminates frequency variation for EMI-critical DSL modem RF sections.
Integrated 2.0-A, 0.13-Ω power switch	Eliminates external MOSFET and gate driver, reducing BOM count and PCB area in PCMCIA card power supplies.
Undervoltage lockout (UVLO)	Disables converter below 2.3 V input, preventing erratic behavior during battery depletion in handheld medical devices.

Applications

Handheld Devices	GPS Receivers
Use Scenario: Powering main system rail and peripheral interfaces in compact consumer handhelds with single-cell Li-ion battery. IC Role / Device Role / Timing Role: Step-up converter generating stable 5 V or 12 V from 3.3 V battery output, synchronized to system enable signals via EN pin. Use Value: Delivers 500 mA at 12 V with >92% efficiency in PFM mode, extending battery life while maintaining low output ripple (<20 mV_pp) for sensitive analog circuits.	Use Scenario: Supplying LNA and RF synthesizer stages in battery-operated GPS modules requiring clean, regulated 3.3 V or 5 V rails. IC Role / Device Role / Timing Role: Boost regulator operating in forced PWM mode to suppress switching frequency harmonics near 1.575 GHz GPS band. Use Value: Fixed 1.2 MHz operation enables simple LC filtering; thermal shutdown prevents thermal runaway during extended outdoor operation.
Digital Still Cameras	TFT LCD Bias Supply
Use Scenario: Generating high-voltage bias for CCD/CMOS image sensor analog front-end and flash LED drivers. IC Role / Device Role / Timing Role: High-current boost converter delivering up to 18.5 V at 200 mA with fast transient response to shutter actuation pulses. Use Value: Adaptive off-time control reduces output voltage droop during burst capture; soft-start prevents sensor reset glitches at power-on.	Use Scenario: Providing positive (V_POS) and negative (V_NEG) bias voltages for active-matrix TFT displays in industrial HMIs and medical monitors. IC Role / Device Role / Timing Role: Primary positive boost stage (e.g., 3.3 V → 15 V) feeding charge-pump inverters; regulated via precision 1.238 V FB reference. Use Value: Tight feedback tolerance (±0.65%) ensures consistent display contrast; external compensation maintains stability with large output capacitance (≥40 µF).

Handheld Devices

GPS Receivers

Use Scenario: Powering main system rail and peripheral interfaces in compact consumer handhelds with single-cell Li-ion battery.

IC Role / Device Role / Timing Role: Step-up converter generating stable 5 V or 12 V from 3.3 V battery output, synchronized to system enable signals via EN pin.

Use Value: Delivers 500 mA at 12 V with >92% efficiency in PFM mode, extending battery life while maintaining low output ripple (<20 mV_pp) for sensitive analog circuits.

Use Scenario: Supplying LNA and RF synthesizer stages in battery-operated GPS modules requiring clean, regulated 3.3 V or 5 V rails.

IC Role / Device Role / Timing Role: Boost regulator operating in forced PWM mode to suppress switching frequency harmonics near 1.575 GHz GPS band.

Use Value: Fixed 1.2 MHz operation enables simple LC filtering; thermal shutdown prevents thermal runaway during extended outdoor operation.

Digital Still Cameras

TFT LCD Bias Supply

Use Scenario: Generating high-voltage bias for CCD/CMOS image sensor analog front-end and flash LED drivers.

IC Role / Device Role / Timing Role: High-current boost converter delivering up to 18.5 V at 200 mA with fast transient response to shutter actuation pulses.

Use Value: Adaptive off-time control reduces output voltage droop during burst capture; soft-start prevents sensor reset glitches at power-on.

Use Scenario: Providing positive (V_POS) and negative (V_NEG) bias voltages for active-matrix TFT displays in industrial HMIs and medical monitors.

IC Role / Device Role / Timing Role: Primary positive boost stage (e.g., 3.3 V → 15 V) feeding charge-pump inverters; regulated via precision 1.238 V FB reference.

Use Value: Tight feedback tolerance (±0.65%) ensures consistent display contrast; external compensation maintains stability with large output capacitance (≥40 µF).

Equivalent & Alternatives

The following parts are listed as comparable options for similar boost converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS61085DRCR	Same 10-pin VSON package, 1.2-MHz switching, but 1.8-A switch current limit and 17-V max output.	Limited to ≤17 V output; unsuitable for 18.5 V TFT bias rails requiring full TPS61086 capability.	Select TPS61085DRCR only when output voltage ≤17 V and peak load current <1.8 A; verify loop stability with reduced current-sense gain.
MAX17062ETA+	16-pin TQFN, 2-A switch, 1.1-MHz switching, but requires internal compensation and lacks MODE pin for PFM/PWM selection.	No user-selectable light-load mode; fixed PWM results in lower light-load efficiency vs. TPS61086DRCR's PFM.	Choose MAX17062ETA+ only when board space permits larger package and system-level noise filtering compensates for lack of PFM mode.

Compared with TPS61085DRCR and MAX17062ETA+, the TPS61086DRCR uniquely combines 18.5-V output capability, 2.0-A switch, and user-controllable PFM/PWM mode in a 3×3-mm VSON package-enabling higher-voltage bias generation and longer battery runtime where both voltage headroom and light-load efficiency are critical.

Availability

TPS61086DRCR is available at Aetrix Electronics and suitable for handheld devices, GPS receivers, digital still cameras, and TFT LCD bias supply applications requiring stable component supply, long-term production continuity, and TI-qualified automotive-grade traceability.

Supply support for TPS61086DRCR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader designing analog ICs, embedded processors, and wireless connectivity solutions for industrial, automotive, and consumer markets.

The TPS61086 belongs to TI's high-efficiency boost converter product line, engineered specifically for portable and battery-powered systems needing compact, high-voltage DC-DC conversion with intelligent light-load management.

FAQ

What is the maximum output voltage supported by the TPS61086DRCR?

The TPS61086DRCR supports a maximum output voltage of 18.5 V, as specified in its absolute maximum ratings and confirmed in the recommended operating conditions table. This rating applies across the full input range (2.3 V to 6.0 V) and ambient temperature range (–40°C to 85°C). The device achieves this using its integrated 2.0-A, 0.13-Ω power switch and current-mode control architecture, making it suitable for TFT LCD bias and white LED driver applications where higher voltage rails are required. Exceeding 18.5 V risks damage or regulation failure.

How does the MODE pin affect efficiency and noise performance in the TPS61086DRCR?

The MODE pin on the TPS61086DRCR selects between two operational modes: pulling MODE low enables Power Save Mode (PFM), which improves light-load efficiency (>90% at 1 mA) by skipping pulses, while pulling MODE high forces continuous PWM operation for fixed 1.2-MHz switching-reducing conducted EMI and simplifying filtering in noise-sensitive GPS or RF applications. The TPS61086DRCR's dual-mode capability allows system designers to optimize for either battery life or spectral purity without changing hardware. Efficiency drops ~5–8% at light loads in forced PWM versus PFM, but ripple remains tightly controlled.

What external components are required for basic operation of the TPS61086DRCR?

Basic operation of the TPS61086DRCR requires an input capacitor (10 µF ceramic), output capacitor (2 × 10 µF ceramic), inductor (3.3 µH), Schottky diode (e.g., PMEG2010AEH), feedback resistors (R1 = 156 kΩ, R2 = 18 kΩ for 12 V), soft-start capacitor (100 nF), and compensation network (68 kΩ + 1.2 nF). The IN pin also needs a 1-µF ceramic bypass capacitor placed adjacent to the IC. All components must meet voltage and current ratings per the datasheet: e.g., input cap ≥16 V, output cap ≥25 V, inductor saturation current ≥2.2 A. Missing any of these compromises regulation, efficiency, or reliability.

Can the TPS61086DRCR be used with input voltages below 2.3 V?

No, the TPS61086DRCR cannot reliably operate with input voltages below 2.3 V. Its undervoltage lockout (UVLO) activates at 2.2 V (falling) and releases at 2.3 V (rising), disabling the converter to prevent malfunction. Below 2.3 V, the internal 1.238-V feedback reference becomes unstable, regulation accuracy degrades, and the 2.0-A switch may not fully enhance. While some marginal operation might occur down to 2.25 V under ideal lab conditions, TI specifies 2.3 V as the minimum recommended input voltage for guaranteed performance across temperature and process variation. For sub-2.3 V sources, consider the TPS61099 or similar ultra-low-V_IN boost converters.

What thermal management practices are recommended for the TPS61086DRCR in high-current applications?

For high-current applications, the TPS61086DRCR requires robust thermal management: the exposed thermal pad must be soldered to a ≥100 mm² copper pour with ≥4 thermal vias (0.3 mm diameter) connecting to inner/ground planes. Maintain junction temperature ≤125°C (recommended max) using the 29.6 °C/W junction-to-board thermal resistance. At 500 mA output into 12 V, power dissipation is ~0.8 W; without adequate copper, junction temperature can exceed 150°C triggering thermal shutdown. Avoid routing high-speed signals under the IC, and ensure airflow or heatsinking if ambient exceeds 60°C. Thermal simulation using the provided R_θJA = 54.7 °C/W is advised for sealed enclosures.

TPS61086DRCR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 10-VFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Up

Output Configuration:: Positive

Topology:: Boost

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.3V

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 2.8V

Voltage - Output (Max):: 18.5V

Current - Output:: 2A (Switch)

Frequency - Switching:: 1.2MHz

Synchronous Rectifier:: No

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-VSON (3x3)

TPS61086DRCR FAQ

1.How can I place an order for TPS61086DRCR through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS61086DRCR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS61086DRCR reliable?

The price and inventory of TPS61086DRCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61086DRCR is usually 5 days.

3.What payment methods are accepted for TPS61086DRCR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61086DRCR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS61086DRCR?

TPS61086DRCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS61086DRCR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS61086DRCR?

For technical support, including TPS61086DRCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61086DRCR requirements.

6.How does Aetrix verify that TPS61086DRCR is sourced from the original manufacturer or authorized distributors?

All TPS61086DRCR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS61086DRCR meets industry standards.

7.What is the process for return or replacement of TPS61086DRCR?

All TPS61086DRCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61086DRCR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS61086DRCR part is unused and in its original packaging.

Return procedure for TPS61086DRCR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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