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Texas Instruments TPS61023DRLR
- Part No.:
- TPS61023DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS61023DRLR.pdf
- Description:
- IC REG BOOST ADJ 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:7,547
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Product details
Overview
TPS61023DRLR from Texas Instruments is a synchronous boost converter IC designed for ultra-low-input-voltage power conversion in space-constrained portable systems. It delivers up to 3.7-A valley switch current, operates from 0.5 V to 5.5 V input, regulates output from 2.2 V to 5.5 V, and integrates dual MOSFETs (47 mΩ LS / 68 mΩ HS) in a 1.2 mm × 1.6 mm SOT563 package-enabling single-cell Li-ion or supercapacitor backup in electronic shelf labels.
For engineers reviewing the TPS61023DRLR datasheet, TPS61023DRLR pinout, TPS61023DRLR application, or TPS61023DRLR equivalent, key selection considerations include its 0.5-V startup capability, adaptive 0.5–1 MHz switching frequency, true input-output disconnection in shutdown, ±2.5% reference accuracy over –40°C to +125°C, and pass-through mode operation when VIN > VOUT.
Technical Context
The TPS61023DRLR implements adaptive constant-on-time valley-current-mode control with internal loop compensation, enabling stable regulation across wide input/output ranges without external compensation components. Its dual-MOSFET synchronous rectification and programmable soft-start (700 µs typical) support reliable cold-start from deeply discharged supercapacitors or single alkaline cells.
It features dual operating modes: quasi-constant-frequency PWM (1 MHz above 1.5 V VIN, scaling to 0.5 MHz below 1 V) for high-load efficiency, and auto PFM for light-load operation-maintaining >94% peak efficiency at 3.6 VIN/5 VOUT/1.5 A while consuming only 20 µA quiescent current from VOUT and 0.1 µA shutdown current from VIN/SW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.5 V to 5.5 V - enables direct operation from single NiMH, alkaline, or deeply discharged supercapacitors |
| Output Voltage Range | 2.2 V to 5.5 V - adjustable via external resistor divider; supports USB-powered peripherals and MCU I/O rails |
| Switch Current Limit | 3.7-A valley - sustains 1.5 A output at 5 V from 3.6 V input with margin for transient loads |
| Switching Frequency | 1 MHz (VIN > 1.5 V), 0.5 MHz (VIN < 1 V) - dynamically optimizes efficiency and step-up ratio across input range |
| Reference Accuracy | ±2.5% over –40°C to +125°C - ensures stable output regulation in industrial and automotive-adjacent environments |
| Shutdown Current | 0.1 µA from VIN and SW - extends battery life in always-on, low-duty-cycle devices like remote controllers |
| Package | SOT563 (DRL), 1.2 mm × 1.6 mm - provides minimal PCB footprint for ultra-thin consumer electronics |
Pinout & Package
SOT563 (DRL) 6-pin package: 1.2 mm × 1.6 mm body, 0.4 mm pitch, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - FB | Voltage feedback input | Connects to resistor divider to set output voltage; 595 mV nominal reference enables precise regulation |
| 2 - EN | Enable logic input | Active-high enable (1.2 V threshold); pulls low to enter 0.1 µA shutdown with full input-output isolation |
| 3 - VIN | Main power input | Accepts 0.5–5.5 V; includes 1.8 V UVLO rising threshold and 0.5 V falling threshold for controlled start/stop |
| 4 - GND | Power ground | Common return path for input, output, and internal circuitry; must be low-impedance for stability |
| 5 - SW | Switch node | Drain of internal low-side NMOS and source of high-side PMOS; connects to external inductor and catch diode location |
| 6 - VOUT | Regulated output | Delivers boosted voltage; includes 5.7 V overvoltage protection and short-circuit current limiting |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.5-V start-up | Enables power delivery from near-dead batteries or supercapacitors down to 0.5 V, extending usable energy |
| Adaptive switching frequency | 1 MHz → 0.5 MHz transition improves light-load efficiency and enables higher boost ratios at low VIN |
| True input-output disconnection | Shuts off both MOSFETs during shutdown, eliminating leakage paths and preventing backfeed into weak sources |
| Integrated pass-through mode | Automatically bypasses switching when VIN exceeds VOUT by >1%, reducing conduction loss and heat generation |
| Comprehensive protection suite | Includes OVP (5.7 V), thermal shutdown (150°C), short-circuit limiting, and valley-current foldback for robust field operation |
Applications
| Electronic Shelf Label (ESL) | Video Doorbell |
|---|---|
Use Scenario: Battery-powered e-paper display updating infrequently via BLE or sub-GHz RF, requiring long shelf life and cold-temperature operation. IC Role / Device Role / Timing Role: Primary DC-DC boost regulator converting 1.5–3.0 V from AA/AAA cells to stable 3.3 V or 5 V for display driver and radio ICs. Use Value: 0.5-V input capability extracts last usable energy from alkaline cells; 0.1 µA shutdown current enables multi-year battery life. | Use Scenario: Outdoor doorbell with motion-triggered HD video streaming, powered by rechargeable Li-ion and requiring wake-on-event responsiveness. IC Role / Device Role / Timing Role: Always-on boost converter supplying 5 V to camera module and Wi-Fi SoC during standby, ramping to full load on motion detection. Use Value: Pass-through mode reduces quiescent loss when battery voltage exceeds 5 V; 3.7-A current limit handles burst current of image sensor and transmitter. |
| Remote Controller | Low-Power IoT Sensor Node |
Use Scenario: RF remote with touch interface and LED feedback, operating from two AAA cells with multi-year battery requirement. IC Role / Device Role / Timing Role: Efficient voltage booster delivering regulated 3.3 V to MCU and transceiver during brief button-press transmissions. Use Value: Auto PFM mode maintains >85% efficiency at µA-level loads; 1.2 mm × 1.6 mm SOT563 fits tight mechanical envelopes. | Use Scenario: Wireless environmental sensor logging temperature/humidity every 5 minutes, powered by coin cell or energy harvester. IC Role / Device Role / Timing Role: Primary power management IC converting harvested microwatts or 1.2–2.0 V from thin-film battery to 3.3 V system rail. Use Value: 0.5-V minimum input allows operation from partially discharged or low-voltage harvesters; 20 µA VOUT quiescent current minimizes standby drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61022DRLR | Lower 3.0-A valley current limit; same 0.5–5.5 V input, 2.2–5.5 V output, and SOT563 package | Less suitable for 1.5-A continuous loads; identical footprint and pinout for drop-in replacement where current margin permits | Select when peak load ≤ 1.2 A and cost sensitivity outweighs current headroom needs |
| MAX17222ELT+T | 0.4-V min input, 2.0-A switch limit, 1.71-mm × 1.21-mm WLP package; no pass-through mode or OVP | Better for ultra-low-VIN harvesting; lacks integrated protections and requires external OVP for safety-critical use | Prefer for sub-0.5-V energy harvesting; avoid where output fault protection or 1.5-A+ loads are required |
Compared with TPS61023DRLR, TPS61022DRLR offers identical form factor and feature set but reduced current capability-making it viable only for lower-power variants. MAX17222ELT+T enables deeper discharge but sacrifices protection, integration, and output drive strength, demanding careful system-level risk assessment.
Availability
TPS61023DRLR is available at Aetrix Electronics and suitable for electronic shelf label, video doorbell, and remote controller designs requiring stable component supply, long-term manufacturability, and guaranteed traceability for consumer electronics production.
Supply support for TPS61023DRLR 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, embedded processing, and power management technologies, with decades of expertise in high-efficiency DC-DC conversion.
The TPS61023DRLR belongs to TI's ultra-low-input-voltage boost converter product line, engineered specifically for battery- and supercapacitor-powered portable electronics where extended runtime and cold-temperature reliability are critical.
FAQ
What is the minimum input voltage required for TPS61023DRLR to start switching?
The TPS61023DRLR requires a minimum of 1.8 V at VIN to initiate startup due to its undervoltage lockout (UVLO) rising threshold. Once enabled and regulating, it continues operation down to 0.5 V input-making it ideal for supercapacitor backup systems that discharge deeply. This two-stage behavior is confirmed in Section 7.3.1 of the official datasheet.
Does TPS61023DRLR support automatic pass-through mode, and how does it work?
Yes, the TPS61023DRLR automatically enters pass-through mode when VIN exceeds the regulated VOUT by more than 1%. In this state, the high-side PMOS FET fully turns on, bypassing switching losses and reducing conduction loss to just the RDS(on) (68 mΩ) plus inductor DCR. The device resumes PWM regulation when VOUT drops below 97% of target-ensuring seamless transition without output droop or control instability.
What protection features are integrated into the TPS61023DRLR?
The TPS61023DRLR integrates output overvoltage protection (5.7 V threshold), thermal shutdown (150°C trip, 130°C hysteresis), output short-circuit protection (current-limited to ~350 mA at VOUT < 0.4 V), and valley-current foldback under overload. These protections are hardware-based and active across the full –40°C to +125°C junction temperature range, eliminating need for external supervision circuits.
Can TPS61023DRLR operate efficiently at very light loads, and what mode does it use?
Yes, the TPS61023DRLR automatically switches from PWM to power-save mode (PFM) at light loads to maintain high efficiency. In PFM mode, it pulses intermittently-switching only when output voltage falls below regulation-achieving >85% efficiency even at 100 µA output current. Quiescent current from VOUT is just 20 µA, and shutdown current drops to 0.1 µA, supporting multi-year battery life in duty-cycled applications.
What is the recommended inductor value range for TPS61023DRLR, and why is it critical?
The TPS61023DRLR is optimized for inductors between 0.37 µH and 2.9 µH, with 1.0 µH being typical for 5 V/1.5 A output. Inductor value directly impacts ripple current, transient response, and peak switch stress. Using values outside this range risks instability, excessive ripple, or premature current-limit activation. TI recommends Coilcraft XEL4030-102ME and Würth 74438357010 for validated performance and thermal margin.
TPS61023DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- 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):
- 0.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.2V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS61023DRLR FAQ
1.How can I place an order for TPS61023DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61023DRLR 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 TPS61023DRLR reliable?
The price and inventory of TPS61023DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61023DRLR is usually 5 days.
3.What payment methods are accepted for TPS61023DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61023DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61023DRLR?
TPS61023DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61023DRLR 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 TPS61023DRLR?
For technical support, including TPS61023DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61023DRLR requirements.
6.How does Aetrix verify that TPS61023DRLR is sourced from the original manufacturer or authorized distributors?
All TPS61023DRLR 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 TPS61023DRLR meets industry standards.
7.What is the process for return or replacement of TPS61023DRLR?
All TPS61023DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS61023DRLR, 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 TPS61023DRLR part is unused and in its original packaging.
Return procedure for TPS61023DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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