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Texas Instruments TPS61023DRLT
- Part No.:
- TPS61023DRLT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS61023DRLT.pdf
- Description:
- IC REG BOOST ADJ 3A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:10,412
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Product details
Overview
TPS61023DRLT 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 limit, 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 power for electronic shelf labels.
For engineers reviewing the TPS61023DRLT datasheet, TPS61023DRLT pinout, TPS61023DRLT application, or TPS61023DRLT 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 exceeds VOUT.
Technical Context
The TPS61023DRLT uses 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 architecture eliminates external diode losses and supports high efficiency (94% at 3.6 V → 5 V/1.5 A).
It implements dynamic frequency scaling: fixed 1-MHz PWM above 1.5 V input, linearly decreasing to 0.5 MHz between 1.5 V and 1 V, then holding at 0.5 MHz below 1 V-optimizing efficiency and boost ratio under deep discharge. Power-save PFM mode engages at light load to maintain >85% efficiency down to 100 µA output current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.5 V to 5.5 V - enables direct operation from deeply discharged supercapacitors or single alkaline/NiMH cells. |
| Output Voltage Range | 2.2 V to 5.5 V - adjustable via external resistor divider; supports USB-5V, MCU I/O rails, and display bias supplies. |
| Valley Switch Current Limit | 3.7 A (typical) - defines maximum sustainable inductor peak current; determines max output power at low VIN. |
| Switching Frequency | 1 MHz (VIN > 1.5 V), 0.5 MHz (VIN < 1 V) - reduces gate drive loss and improves light-load efficiency at ultra-low input. |
| Shutdown Current | 0.1 µA (typical) - minimizes battery drain during system sleep; critical for multi-year battery life in ESLs. |
| Reference Accuracy | ±2.5% over –40°C to +125°C - ensures stable output regulation across industrial temperature range without calibration. |
| Package | SOT563 (DRL), 1.2 mm × 1.6 mm - smallest available boost converter package; enables <20 mm² total solution size. |
Pinout & Package
SOT563 (DRL) is a 6-pin, 1.2 mm × 1.6 mm surface-mount package with exposed thermal pad (not electrically connected). Pin 1 is marked by dot; pins are arranged in single row with 0.5-mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB | Voltage feedback input | Connects to resistor divider; sets output voltage via 595-mV internal reference; leakage <20 nA enables high-resistor dividers. |
| EN | Enable logic input | Active-high enable; threshold 1.2 V (min); pulls device into 0.1-µA shutdown when <0.4 V; supports system-level power sequencing. |
| 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-up from depleted sources. |
| GND | Power ground | Common return for input, output, and internal circuitry; must be low-impedance connection to minimize noise and thermal resistance. |
| SW | Switch node | Drain of internal low-side NMOS and source of high-side PMOS; connects to inductor; requires tight layout to reduce EMI and switching loss. |
| VOUT | Regulated output | Delivers boosted DC output; features true disconnection in shutdown and 5.7-V overvoltage protection to safeguard downstream loads. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low 0.5-V input start-up | Enables power delivery from supercapacitors discharged to 0.5 V or single-cell batteries near end-of-life. |
| Adaptive switching frequency | 1 MHz → 0.5 MHz transition optimizes efficiency and duty cycle headroom across full input range without external control. |
| Pass-through mode | When VIN > VOUT, high-side FET fully turns on-reducing dropout to RDS(on) + DCR losses instead of full boost overhead. |
| True input-output disconnection | Zero current path between VIN and VOUT in shutdown-eliminates reverse leakage and preserves source battery life. |
| Integrated protection suite | Includes output overvoltage (5.7 V), short-circuit, thermal shutdown (150°C), and valley-current limiting-reducing BOM count and failure risk. |
Applications
| Electronic Shelf Label (ESL) | Video Doorbell |
|---|---|
Use Scenario: Battery-powered e-paper display updating price data every 1–24 hours with minimal active time. IC Role / Device Role / Timing Role: Primary boost regulator converting 1.5–3.0 V alkaline/NiMH cell output to stable 3.3 V or 5 V for display driver and BLE radio. Use Value: 0.1-µA shutdown current extends 10-year battery life; 0.5-V input support allows full utilization of cell capacity down to 0.5 V. | Use Scenario: Intermittent-use outdoor doorbell with motion-triggered video streaming and local storage. IC Role / Device Role / Timing Role: System power manager supplying 5 V to camera module and Wi-Fi SoC from partially discharged lithium primary or rechargeable pack. Use Value: Pass-through mode delivers >95% efficiency when battery voltage exceeds 5 V; 3.7-A current limit sustains burst current for image capture. |
| Remote Controller | Low-Power IoT Sensor Node |
Use Scenario: RF remote with LCD or LED indicators powered by two AA cells, requiring long shelf life and reliable button-press response. IC Role / Device Role / Timing Role: Always-on boost converter maintaining regulated 3.3 V rail for microcontroller and sub-GHz transceiver during standby and wake events. Use Value: Auto PFM mode maintains >88% efficiency at 100 µA load; 1.2 mm × 1.6 mm footprint fits compact PCB layouts. | Use Scenario: Wireless environmental sensor logging temperature/humidity and transmitting hourly via LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Energy-harvesting interface boosting output from thermoelectric or solar mini-panel (0.5–2.5 V) to 3.3 V system rail. Use Value: 0.5-V minimum input enables operation even under low-light or low-ΔT conditions; thermal shutdown prevents damage during extended solar charging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61022DRLT | Same SOT563 package but 2.5-A valley current limit; lacks 0.5-V start-up (requires ≥0.9 V); no pass-through mode. | Better suited for mid-power apps where ultra-low VIN not required; lower cost where 3.7-A current headroom is unnecessary. | Select TPS61022DRLT only if input never drops below 0.9 V and peak load ≤2.5 A. |
| MAX17222ELT+T | 0.4-V start-up, 1.2-A limit, 1.7-mm × 1.7-mm WLP-6 package; no pass-through; ±3% reference accuracy. | Optimized for lowest possible quiescent current (300 nA) in coin-cell apps; insufficient current for ESL display drivers or doorbell bursts. | Choose MAX17222ELT+T for ultra-low-IQ designs with <1.2-A peak demand and space-constrained WLP layouts. |
Compared with TPS61022DRLT and MAX17222ELT+T, the TPS61023DRLT uniquely combines 0.5-V start-up, 3.7-A current capability, and pass-through mode-making it the only option capable of powering high-burst, ultra-low-VIN applications like ESLs and video doorbells without compromising runtime or solution size.
Availability
TPS61023DRLT is available at Aetrix Electronics and suitable for electronic shelf label, video doorbell, and remote controller applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS61023DRLT 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 delivering analog and embedded processing solutions, with over 50 years of innovation in power management ICs.
The TPS61023DRLT belongs to TI's ultra-low-input-voltage boost converter product line, engineered specifically for energy-constrained portable and IoT devices powered by single cells, supercapacitors, or energy harvesters.
FAQ
What is the minimum input voltage required for TPS61023DRLT to start switching?
The TPS61023DRLT requires a minimum input voltage of 1.8 V to initiate start-up due to its undervoltage lockout (UVLO) rising threshold. However, once enabled and regulating, it continues operation down to 0.5 V input-making it ideal for deeply discharged supercapacitor backup systems. This dual-threshold behavior is confirmed in Section 6.3 and 7.3.1 of the official datasheet.
Does TPS61023DRLT support automatic transition between PWM and PFM modes?
Yes, the TPS61023DRLT automatically transitions from PWM mode (quasi-constant 1 MHz or 0.5 MHz) to power-save PFM mode at light loads. This occurs when the FB voltage reaches the PFM reference threshold, reducing switching frequency to maintain >85% efficiency at output currents as low as 100 µA-verified in Sections 7.4.2 and 6.5 of the datasheet.
Can TPS61023DRLT safely operate when input voltage exceeds the set output voltage?
Yes, the TPS61023DRLT enters pass-through mode when VIN exceeds VOUT by ~1%. In this state, the high-side PMOS FET fully turns on, reducing conduction loss to just RDS(on) + inductor DCR-confirmed in Section 7.3.5. Output voltage becomes VIN minus these small losses, avoiding unnecessary switching and improving efficiency.
What protection features are integrated into TPS61023DRLT?
The TPS61023DRLT integrates output overvoltage protection (5.7 V threshold), output short-circuit protection (limits current to ~350 mA when VOUT < 0.4 V), thermal shutdown (150°C trip, 130°C recovery), and valley-current limiting (3.7-A typical). These are documented in Sections 1, 6.5, and 7.3 of the datasheet and require no external components.
Is the TPS61023DRLT pinout compatible with other TI boost converters in SOT563?
No, the TPS61023DRLT pinout is not pin-compatible with other TI SOT563 boost converters such as TPS61022DRLT or TPS61291DRVT. While all use 6-pin SOT563, the FB and EN pin positions differ-TPS61023DRLT places FB on Pin 1 and EN on Pin 2, whereas TPS61022DRLT swaps these. Layout reuse is not possible without redesign.
TPS61023DRLT 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
TPS61023DRLT FAQ
1.How can I place an order for TPS61023DRLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61023DRLT 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 TPS61023DRLT reliable?
The price and inventory of TPS61023DRLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61023DRLT is usually 5 days.
3.What payment methods are accepted for TPS61023DRLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61023DRLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61023DRLT?
TPS61023DRLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61023DRLT 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 TPS61023DRLT?
For technical support, including TPS61023DRLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61023DRLT requirements.
6.How does Aetrix verify that TPS61023DRLT is sourced from the original manufacturer or authorized distributors?
All TPS61023DRLT 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 TPS61023DRLT meets industry standards.
7.What is the process for return or replacement of TPS61023DRLT?
All TPS61023DRLT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61023DRLT, 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 TPS61023DRLT part is unused and in its original packaging.
Return procedure for TPS61023DRLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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