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Texas Instruments TPS61026DRCTG4
- Part No.:
- TPS61026DRCTG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS61026DRCTG4.pdf
- Description:
- IC REG BOOST 5V 1.8A 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,221
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Product details
Overview
TPS61026DRCTG4 from Texas Instruments is a fixed-frequency synchronous boost converter IC designed for battery-powered portable electronics. It delivers up to 200 mA at 5 V output from a 0.9–5.5 V input, features integrated low-EMI anti-ringing switch, 25 µA quiescent current, and down-regulation capability enabling stable operation even when input exceeds output voltage - used in camera LED flash power supplies.
For engineers reviewing the TPS61026DRCTG4 datasheet, TPS61026DRCTG4 pinout, TPS61026DRCTG4 application, or TPS61026DRCTG4 equivalent, key selection criteria include its 5-V fixed output, 1500–1800 mA switch current limit, VSON-10 package thermal performance (RθJA = 47.2°C/W), and LBI/LBO low-battery supervision interface compatibility with alkaline/NiMH/Li-ion sources.
Technical Context
The TPS61026DRCTG4 implements a fixed-frequency PWM controller with synchronous rectification using internal N- and P-channel MOSFETs, achieving 96% peak efficiency. Input voltage, output voltage, and NMOS switch voltage drop are fed forward directly to the regulator, enabling rapid duty-cycle response without relying solely on error-amplifier loop dynamics.
It supports true down-regulation mode: when VBAT ≥ VOUT, the PMOS rectifier operates in linear mode to regulate output, with automatic exit when VBAT falls ~50 mV below VOUT. Power Save Mode (enabled via PS pin) dynamically pulses operation at light loads, while shutdown disconnects load from battery via backgate control of the high-side PMOS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5 V - eliminates external feedback resistors and simplifies BOM for standard USB-peripheral or white LED biasing. |
| Input Voltage Range | 0.9 V to 5.5 V - supports single-cell Li-ion (fully charged to depleted), two-cell alkaline/NiMH, and three-cell NiCd down to end-of-life. |
| Switch Current Limit | 1500–1800 mA - enables robust 200 mA output at 5 V even under low-input conditions (e.g., 0.9 V start-up). |
| Quiescent Current | 25 µA typical - minimizes battery drain in standby, critical for always-on medical or sensor nodes. |
| Efficiency | Up to 96% - achieved via synchronous rectification and integrated low-RDS(ON) MOSFETs, reducing heat and extending runtime. |
| Switching Frequency | 480–720 kHz - enables use of small 6.8 µH inductors and ceramic output capacitors (e.g., 2.2 µF + 47 µF). |
| Thermal Resistance | RθJA = 47.2°C/W - verified for 3 mm × 3 mm VSON-10 PowerPAD™ package, supporting >150 mA continuous output at 85°C ambient. |
Pinout & Package
TPS61026DRCTG4 is housed in a thermally enhanced 3.00 mm × 3.00 mm VSON-10 (DRC) package with exposed PowerPAD™ thermal pad that must be soldered to PGND for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic: ties to VBAT for always-on operation; grounded to fully isolate load and reduce shutdown current to ≤1 µA. |
| VOUT (Pin 2) | Regulated output | 5 V fixed supply node - connects to output capacitor bank (C2/C3) and downstream load; requires low-ESR bulk capacitance. |
| FB (Pin 3) | Feedback input | Not used - internal resistor divider sets 5 V output; pin must be left unconnected or tied to GND per datasheet guidance. |
| LBO (Pin 4) | Low-battery open-drain output | Active-low flag - requires external 1 MΩ pull-up; signals host MCU when battery voltage drops below programmed LBI threshold. |
| GND (Pin 5) | Logic ground reference | Reference for all control circuitry (EN, PS, LBI, FB); must be connected to PGND at single point near GND pin to avoid ground shift. |
| VBAT (Pin 6) | Battery input supply | Main power source - accepts 0.9–5.5 V; feeds internal UVLO (0.8 V threshold) and start-up circuitry. |
| LBI (Pin 7) | Low-battery comparator input | Programmable threshold input - scaled by external resistor divider to trigger LBO at user-defined battery voltage (e.g., 2.8 V). |
| PS (Pin 8) | Power Save mode control | Active-low: grounded to enable pulse-skipping for >85% efficiency at <10 mA loads; tied to VBAT to force fixed-frequency operation. |
| SW (Pin 9) | Boost switch node | Connection to inductor and catch diode - carries high di/dt switching current; layout requires short, wide trace and local decoupling. |
| PGND (Pin 10) | Power ground | Source connection for NMOS switch - must be tied to PowerPAD™ and routed separately from logic GND until single-point star connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated anti-ringing switch | Dampens SW-node oscillation during discontinuous conduction mode, reducing radiated EMI without external snubbers. |
| Load disconnect during shutdown | Backgate-controlled high-side PMOS isolates VOUT from VBAT, eliminating battery drain in off-state - no external MOSFET needed. |
| Down-regulation capability | Maintains regulated 5 V output even when VBAT ≥ 5 V (e.g., fresh Li-ion), avoiding need for separate LDO or buck stage. |
| Low-battery supervisor (LBI/LBO) | User-programmable threshold with 10 mV hysteresis and open-drain output - enables precise battery fuel-gauge signaling without ADC. |
| Thermal shutdown with hysteresis | Triggers at 140°C junction temperature and releases at 120°C - protects against sustained overload or poor PCB thermal design. |
Applications
| Camera White LED Flash | Portable Medical Sensors |
|---|---|
|
Use Scenario: Powering high-current white LEDs (3.6 V VF) from a single 3.7 V Li-ion cell during brief flash bursts. IC Role / Device Role / Timing Role: Synchronous boost converter providing regulated 5 V at up to 200 mA with fast transient response and minimal output droop. Use Value: Enables consistent LED brightness across full battery range (4.2 V → 3.0 V), leveraging down-regulation mode when cell voltage exceeds 5 V. |
Use Scenario: Supplying 5 V to low-power analog front-end and BLE radio in wearable glucose monitors powered by coin-cell or AAA batteries. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting 0.9–1.8 V alkaline/NiMH input to stable 5 V rail with ultra-low quiescent current. Use Value: Extends battery life beyond 12 months via 25 µA IQ and load-disconnect shutdown, while maintaining accurate sensor biasing. |
| Handheld Barcode Scanners | Industrial PDAs |
|
Use Scenario: Generating 5 V for laser diode driver and CMOS image sensor in battery-operated handheld scanners using two AA cells. IC Role / Device Role / Timing Role: High-efficiency boost converter supporting burst-mode operation with rapid start-up (<1 ms) and low-noise output. Use Value: Delivers >180 mA at 5 V down to 1.2 V input, enabling reliable scanning even with partially discharged alkaline cells. |
Use Scenario: Providing main 5 V system rail in ruggedized industrial PDAs powered by hot-swappable Li-ion packs. IC Role / Device Role / Timing Role: Primary power management IC with LBO-driven battery-level warning and thermal protection for continuous operation. Use Value: Integrates low-battery detection, overtemperature shutdown, and load isolation - reducing external component count by 3+ discrete parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61027DRCT | Fixed 5 V output, 1800 mA switch current limit, identical VSON-10 package and pinout. | Higher peak current supports >250 mA output at 5 V under marginal input conditions (e.g., 1.0 V). | Select TPS61027DRCT when driving higher-current loads like multi-LED arrays or motor drivers requiring headroom beyond 200 mA. |
| TPS61025DRCT | Fixed 3.3 V output, 1500 mA switch current limit, same package and pinout. | Optimized for 3.3 V microcontroller and peripheral rails - eliminates need for post-regulation LDO in many designs. | Choose TPS61025DRCT for systems where 3.3 V is the primary rail and efficiency at light loads is prioritized over 5 V compatibility. |
Compared with TPS61026DRCTG4, TPS61027DRCT offers higher current headroom for demanding loads, while TPS61025DRCT provides native 3.3 V regulation - both share identical footprint, thermal behavior, and feature set, enabling flexible voltage-scaling within the same PCB layout.
Availability
TPS61026DRCTG4 is available at Aetrix Electronics and suitable for portable medical sensors, handheld barcode scanners, industrial PDAs, camera LED flash modules, and battery-powered audio accessories requiring stable component supply with long-term lifecycle support.
Supply support for TPS61026DRCTG4 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 specializing in analog and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The TPS6102x family was engineered specifically for ultra-low-voltage, high-efficiency boost conversion in space-constrained portable devices - emphasizing battery longevity, thermal resilience, and integration of supervision functions like LBO and down-regulation.
FAQ
What is the exact output voltage of the TPS61026DRCTG4?
The TPS61026DRCTG4 provides a factory-trimmed fixed 5 V output with ±3% total accuracy across line, load, and temperature. This specification includes contributions from line regulation (0.6%), load regulation (0.6%), and reference drift - verified per TI's SLVS451G datasheet Section 8.5. The device does not require external feedback components to achieve this regulation.
Does the TPS61026DRCTG4 support input voltages above its 5 V output?
Yes, the TPS61026DRCTG4 supports down-regulation mode: when VBAT reaches or exceeds 5 V, it actively regulates output by operating the internal PMOS rectifier in linear mode. Operation remains stable until VBAT falls ~50 mV below 5 V, after which normal boost operation resumes - confirmed in Section 10.3.3 of the datasheet.
How is low-battery detection implemented on the TPS61026DRCTG4?
The TPS61026DRCTG4 uses the LBI pin to accept a scaled battery voltage (via external resistor divider) and compares it to an internal 500 mV threshold. When the scaled voltage drops below this level, the open-drain LBO pin pulls low. LBI has 10 mV hysteresis and must never be left floating - details are in Section 10.3.7 and Figure 13 of the datasheet.
What is the thermal performance of the TPS61026DRCTG4 in its VSON-10 package?
The TPS61026DRCTG4 in the 3 mm × 3 mm VSON-10 (DRC) package has RθJA = 47.2°C/W (JEDEC JESD51-7), RθJC(bot) = 3.6°C/W, and ψJB = 21.8°C/W. With proper PowerPAD™ soldering to a 1-in² 2-oz copper area, it sustains 150 mA continuous output at 85°C ambient - validated in Section 8.4 and Layout Guidelines (Section 13).
Can the TPS61026DRCTG4 be used without the LBI/LBO pins?
Yes - if low-battery detection is unused, LBI must be tied to GND or VBAT (not left floating), and LBO may be left unconnected. This disables the comparator but preserves all boost functionality. The requirement is explicitly stated in Pin Functions (Section 7) and Feature Description (Section 10.3.7) of the datasheet.
TPS61026DRCTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.9V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.8A (Switch)
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS61026DRCTG4 FAQ
1.How can I place an order for TPS61026DRCTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61026DRCTG4 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 TPS61026DRCTG4 reliable?
The price and inventory of TPS61026DRCTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61026DRCTG4 is usually 5 days.
3.What payment methods are accepted for TPS61026DRCTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61026DRCTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61026DRCTG4?
TPS61026DRCTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61026DRCTG4 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 TPS61026DRCTG4?
For technical support, including TPS61026DRCTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61026DRCTG4 requirements.
6.How does Aetrix verify that TPS61026DRCTG4 is sourced from the original manufacturer or authorized distributors?
All TPS61026DRCTG4 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 TPS61026DRCTG4 meets industry standards.
7.What is the process for return or replacement of TPS61026DRCTG4?
All TPS61026DRCTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS61026DRCTG4, 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 TPS61026DRCTG4 part is unused and in its original packaging.
Return procedure for TPS61026DRCTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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