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Texas Instruments TPS7A0323DBVR
- Part No.:
- TPS7A0323DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS7A0323DBVR.pdf
- Description:
- 200-MA, NANOPOWER-IQ (200 NA), L
- Quantity:
- Payment:
- Shipping:
Inventory:2,630
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Product details
Overview
TPS7A0323DBVR from Texas Instruments is an ultra-low-quiescent-current LDO voltage regulator delivering 200mA output with 200nA typical IQ, 1.5% output accuracy over temperature, and 270mV max dropout at 3.3V output. It operates from 1.5V to 6.0V input and provides fixed 2.3V output in a 5-pin SOT-23 package, designed for battery-powered wearables and medical sensors requiring extended shelf life and fast transient response.
For engineers reviewing the TPS7A0323DBVR datasheet, TPS7A0323DBVR pinout, TPS7A0323DBVR application, or TPS7A0323DBVR equivalent, this page delivers verified electrical specs, thermal performance data, smart enable behavior, transient response metrics (<10µs settling), and real-world use cases in ultra-low-power IoT endpoints where shutdown current (3nA) and dropout stability are critical selection criteria.
Technical Context
The TPS7A0323DBVR implements a PMOS pass transistor architecture enabling ultra-low IQ operation even in dropout, with internal smart enable pulldown (500kΩ nominal) eliminating external bias components. Its control loop is optimized for <10µs transient settling under 1mA–50mA load steps while maintaining 80mV undershoot - critical for MCU core rail integrity during wake-up bursts.
It integrates UVLO (1.23–1.47V rising threshold), thermal shutdown (170°C), and foldback current limiting (240–750mA). Stability is guaranteed with ≥1µF ceramic output capacitance, and PSRR reaches 55dB at 1kHz under 30mA load - supporting noise-sensitive analog subsystems in mixed-signal edge nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Quiescent Current | 200nA typical - enables >10-year battery life in always-on sensor nodes drawing µA-level average current. |
| Shutdown Current | 3nA typical - preserves battery shelf life for devices stored >5 years before deployment. |
| Output Voltage | Fixed 2.3V - matches low-voltage MCU I/O rails and RF transceiver supply requirements without external feedback. |
| Max Output Current | 200mA - supports peak loads of BLE/Wi-Fi SoCs and multi-sensor fusion modules. |
| Dropout Voltage | 270mV max at 200mA (VOUT = 3.3V); for 2.3V output, ≤310mV - allows operation down to ~2.6V input on single-cell Li-ion or two-cell alkaline. |
| Output Accuracy | ±1.5% over –40°C to +125°C - ensures reliable logic-level margin across automotive cabin and industrial ambient conditions. |
| Transient Response | <10µs settling time, 80mV undershoot (1mA→50mA step) - prevents brownout resets during MCU active-mode transitions. |
Pinout & Package
TPS7A0323DBVR uses the DBV (SOT-23-5) package: 2.9mm × 2.8mm body, 5-pin surface-mount, with exposed thermal pad internally connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply connection | Accepts 1.5V–6.0V; requires ≥1µF ceramic capacitor placed adjacent to minimize input impedance and improve line rejection. |
| 2 (GND) | Ground reference | Common return path for input/output capacitors and load; thermal pad must be soldered to large PCB ground plane for RθJB = 88.1°C/W. |
| 3 (EN) | Enable control input | Logic-high (>1.1V) enables regulator; internal 500kΩ pulldown holds device disabled if left floating - eliminates external pull-down resistor. |
| 4 (NC) | No-connect terminal | Not internally bonded; may be left unconnected or tied to GND for mechanical stability - no electrical function. |
| 5 (OUT) | Regulated output | Delivers stable 2.3V; requires ≥1µF ceramic capacitor with low ESR placed within 2mm for stability and optimal transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Smart Enable Pulldown | 500kΩ internal resistor disables device when EN floats - reduces BOM count and board space vs. discrete pull-down solutions. |
| Ultra-Low Dropout | 270mV max at 200mA (3.3V variant); for 2.3V output, ≤310mV - extends usable battery voltage range by >300mV vs. legacy LDOs. |
| Fast Transient Recovery | <10µs settling time with 80mV undershoot for 1mA→50mA load steps - maintains digital logic integrity during burst-mode wireless transmission. |
| UVLO with Hysteresis | 1.23–1.47V rising threshold, 180mV hysteresis - prevents oscillation during weak-battery brown-in/brown-out conditions. |
| Thermal Shutdown | 170°C trip, 145°C reset - protects against sustained overload or poor heatsinking in sealed enclosures. |
Applications
| Wearable Health Monitors | Smart Utility Meters |
|---|---|
Use Scenario: Continuous glucose monitoring patch operating on coin-cell battery for 90+ days. IC Role / Device Role / Timing Role: Primary power rail regulator for ultra-low-power MCU and electrochemical sensor front-end. Use Value: 200nA IQ and 3nA shutdown current directly extend operational lifetime and shelf life beyond competitive LDOs. | Use Scenario: Battery-backed gas meter with 10-year field deployment requirement and periodic RF reporting. IC Role / Device Role / Timing Role: Stable 2.3V supply for MEMS sensor interface and sub-GHz transceiver during wake-up bursts. Use Value: <10µs transient response prevents communication dropouts during 50mA RF transmit events; 1.5% accuracy ensures ADC reference stability. |
| Residential Circuit Breakers | Building Security Sensors |
Use Scenario: Tamper-resistant AFCI/GFCI module with self-test capability and backup supercapacitor hold-up. IC Role / Device Role / Timing Role: Always-on regulator powering fault-detection logic and EEPROM during mains outage. Use Value: 270mV dropout enables full functionality down to 2.6V input - maximizing supercapacitor energy utilization. | Use Scenario: Wireless PIR motion sensor node using lithium-thionyl chloride primary cell with 15-year target life. IC Role / Device Role / Timing Role: Core voltage regulator for low-power MCU and RF SoC during periodic wake-up and sensing cycles. Use Value: Smart EN pulldown eliminates need for external resistor, reducing leakage paths and improving long-term reliability in humid environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7A0223DBVR | Lower IQ (25nA typ), same 2.3V output and SOT-23-5 package, but 100mA max output current. | Suitable for µA-level sensor nodes with lower peak current demands; not recommended for 200mA RF burst loads. | Select when peak load ≤100mA and IQ reduction below 200nA is prioritized over output current headroom. |
| MCP1703T-2302E/MB | 2.3V fixed output, 250mA rating, but 4µA IQ - 20× higher than TPS7A0323DBVR. | Better thermal performance (RθJA = 150°C/W) but unsuitable for >5-year battery life due to quiescent current penalty. | Choose only when cost sensitivity outweighs battery life requirements and thermal constraints dominate design. |
Compared with TPS7A0223DBVR and MCP1703T-2302E/MB, the TPS7A0323DBVR uniquely balances 200mA drive capability with nanopower IQ - making it the sole option among these three for applications demanding both high peak current and decade-scale battery longevity.
Availability
TPS7A0323DBVR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, residential circuit breakers, and building security sensors requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS7A0323DBVR 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 connectivity technologies, with decades of LDO design expertise and broad automotive/industrial qualification.
The TPS7A03 family was engineered specifically for ultra-low-power, battery-critical applications - emphasizing nanopower IQ, fast transient response, and integrated enable intelligence to eliminate external components in space-constrained IoT endpoints.
FAQ
What is the maximum input voltage rating for the TPS7A0323DBVR?
The TPS7A0323DBVR has an absolute maximum input voltage of 6.5V, but its recommended operating range is 1.5V to 6.0V. Exceeding 6.0V continuously risks violating safe operating area limits, especially at elevated temperatures. The device includes UVLO protection that disables regulation below ~1.23V rising threshold, preventing unstable operation near battery depletion.
Does the TPS7A0323DBVR require an external pull-down resistor on the EN pin?
No, the TPS7A0323DBVR features an integrated smart enable pulldown resistor (~500kΩ) that actively holds the EN pin low when floating, ensuring the device remains disabled without external components. This eliminates leakage paths and PCB area typically needed for discrete pull-downs - a key advantage in miniaturized designs like hearing aids and implantables.
What output capacitor value is required for stability with the TPS7A0323DBVR?
The TPS7A0323DBVR is stable with a minimum effective output capacitance of 0.5µF, but the datasheet specifies ≥1µF ceramic capacitor for optimal transient response and guaranteed stability across temperature and process variation. X7R or X5R dielectrics with ≤100mΩ ESR are recommended; 22µF is the maximum derated value supported for stability.
How does the TPS7A0323DBVR perform during load transients from 1mA to 50mA?
Under a 1mA-to-50mA load step with 1µF output capacitance, the TPS7A0323DBVR achieves <10µs settling time and exhibits only 80mV undershoot - measured at VOUT = 1.8V, VIN = 2.8V. This performance is maintained across –40°C to +125°C, enabling robust operation in automotive and industrial environments where rapid MCU wake-up events occur.
Is the TPS7A0323DBVR pin-compatible with other variants in the TPS7A03 family?
Yes, all TPS7A03 variants in the DBV (SOT-23-5) package - including TPS7A0318DBVR, TPS7A0325DBVR, and TPS7A0323DBVR - share identical pinout (IN, GND, EN, NC, OUT) and footprint. This allows voltage-output flexibility (0.8V–5.0V in 50mV steps) without PCB redesign, simplifying platform development and inventory management across product variants.
TPS7A0323DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 300 nA
- Current - Supply (Max):
- -
- PSRR:
- 55dB (1kHz)
- Control Features:
- Current Limit, Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS7A0323DBVR FAQ
1.How can I place an order for TPS7A0323DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS7A0323DBVR 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 TPS7A0323DBVR reliable?
The price and inventory of TPS7A0323DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS7A0323DBVR is usually 5 days.
3.What payment methods are accepted for TPS7A0323DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS7A0323DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS7A0323DBVR?
TPS7A0323DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS7A0323DBVR 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 TPS7A0323DBVR?
For technical support, including TPS7A0323DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS7A0323DBVR requirements.
6.How does Aetrix verify that TPS7A0323DBVR is sourced from the original manufacturer or authorized distributors?
All TPS7A0323DBVR 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 TPS7A0323DBVR meets industry standards.
7.What is the process for return or replacement of TPS7A0323DBVR?
All TPS7A0323DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS7A0323DBVR, 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 TPS7A0323DBVR part is unused and in its original packaging.
Return procedure for TPS7A0323DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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