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Texas Instruments TPS72215DBVR
- Part No.:
- TPS72215DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS72215DBVR.pdf
- Description:
- IC REG LINEAR 1.5V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,827
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Product details
Overview
TPS72215DBVR from Texas Instruments is a 1.5-V fixed-output, 50-mA low-dropout linear regulator in a 5-pin SOT-23 (DBV) package. It operates from 1.8 V to 5.5 V input, delivers 50 mV typical dropout at full load, supports 0.1-µF ceramic output capacitance, and draws only 85 µA quiescent current-enabling direct two-AAA-battery operation in portable microcontroller power rails.
For engineers reviewing the TPS72215DBVR datasheet, TPS72215DBVR pinout, TPS72215DBVR application, or TPS72215DBVR equivalent, key selection criteria include ultra-low input voltage capability (1.8 V min), cap-free stability with 0.1-µF output capacitor, shutdown current <1 µA, thermal/overcurrent protection, and SOT-23 footprint compatibility for space-constrained battery-powered designs.
Technical Context
The TPS72215DBVR uses a PMOS pass element enabling low dropout (50 mV @ 50 mA) and operation down to 1.8 V input-unlike NMOS-based LDOs requiring ≥2.5 V. Its internal compensation eliminates need for ≥1-µF output capacitors, stabilizing across 0.1–4.7 µF ceramic values.
Enable logic (VIH = 1.4 V, VIL = 0.4 V) allows precise power sequencing; thermal shutdown activates at 170°C with 20°C hysteresis, and current limiting engages at ~350 mA. The NC/FB pin is unconnected in fixed-output variants, distinguishing it from the adjustable TPS72201.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±3% (1.455 V to 1.545 V), stable over –40°C to 125°C junction temp |
| Max Output Current | 50 mA continuous; internal current limit protects at ~350 mA during overload |
| Dropout Voltage | 50 mV typical at 50 mA, enabling regulation from 1.55 V input (e.g., two aging AAA cells) |
| Quiescent Current | 85 µA typical at 1 mA load; drops to <1 µA in shutdown mode for battery longevity |
| Input Voltage Range | 1.8 V to 5.5 V-supports direct two-AAA (1.8–3.0 V) or single Li-ion (up to 4.2 V) input |
| Output Capacitor | 0.1 µF ceramic minimum; no ESR requirements, reducing BOM cost and board area |
| PSRR | 48 dB at 100 Hz (IO = 50 mA, Co = 10 µF), suitable for post-regulation of SMPS outputs |
Pinout & Package
TPS72215DBVR is housed in a RoHS-compliant 5-pin SOT-23 (DBV) package measuring 3.0 mm × 3.0 mm × 1.45 mm max height, with JEDEC MO-178 compliance and Level-1 MSL rating (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input supply connection | Accepts 1.8–5.5 V; requires 0.1-µF ceramic bypass capacitor close to pin |
| 2 - GND | Ground reference | Low-impedance return path for regulator and load; ties to PCB ground plane |
| 3 - EN | Enable control input | Active-high logic: ≥1.4 V enables output; ≤0.4 V disables output and reduces IQ to <1 µA |
| 4 - NC/FB | No-connect (fixed version) | Must remain floating-no connection to GND or FB network; differs from TPS72201's feedback pin |
| 5 - OUT | Regulated output | Delivers stable 1.5 V; requires 0.1-µF ceramic capacitor placed adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| Cap-free stability | Stable with 0.1-µF ceramic output capacitor-eliminates need for larger, costly, or ESR-sensitive caps |
| Ultra-low input voltage | Operates from 1.8 V input, enabling direct use of two AAA batteries throughout discharge cycle |
| Low-quiescent-current shutdown | Sub-1-µA shutdown current extends battery life in sleep-mode portable devices |
| Integrated protection | Thermal shutdown (170°C trip, 20°C hysteresis) and current limiting (~350 mA) prevent damage under fault conditions |
| PMOS pass architecture | Enables low dropout (50 mV) and reverse-current blocking via integrated back diode |
Applications
| Portable Communication Devices | Battery-Powered Microcontrollers |
|---|---|
Use Scenario: Powering Bluetooth LE modules or cellular IoT transceivers in handheld asset trackers. IC Role / Device Role / Timing Role: Primary 1.5-V core supply for RF SoC, replacing inefficient switching converters where low noise is critical. Use Value: Enables 1.8-V minimum input operation from two AAA cells, extending runtime by 20% vs. higher-VIN regulators. | Use Scenario: Supplying ARM Cortex-M0+ MCU cores in handheld medical sensors with strict battery life targets. IC Role / Device Role / Timing Role: Low-noise, low-IQ LDO delivering regulated 1.5 V to processor core rail during active and deep-sleep modes. Use Value: 85 µA quiescent current and <1 µA shutdown minimize standby drain, supporting multi-year battery operation. |
| PCMCIA Cards | SMPS Post-Regulation |
Use Scenario: Providing clean 1.5-V bias to FPGA configuration logic in legacy PCMCIA expansion cards. IC Role / Device Role / Timing Role: Fixed-output LDO ensuring stable core voltage during hot-plug insertion and variable bus loading. Use Value: 0.1-µF output capacitor requirement simplifies layout in tight card-edge footprints without compromising stability. | Use Scenario: Filtering ripple from a 3.3-V buck converter feeding a DSP's I/O interface in audio processing gear. IC Role / Device Role / Timing Role: Low-PSRR post-regulator improving power integrity for sensitive analog/digital interfaces. Use Value: 48 dB PSRR at 100 Hz suppresses switching noise, preventing audible artifacts in line-out signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS72215DBVT | Same electrical specs and package; differs only in tape-and-reel quantity (250 vs. 3000 units) | Preferred for prototyping or low-volume builds due to smaller reel size | Select DBVT for evaluation or small-batch production where reel changeover frequency matters |
| MCP1700T-1502E/TT | 1.5-V fixed LDO; 250-mA rating, 6-µA IQ, but requires ≥1-µF output capacitor and has 600-mV dropout at 250 mA | Better for higher-current loads but unsuitable for ultra-low-VIN or cap-constrained layouts | Choose only if >50 mA output or sub-6-µA IQ is required-and board space allows larger output cap |
Compared with TPS72215DBVR, TPS72215DBVT offers identical performance in a smaller reel format ideal for development, while MCP1700T-1502E/TT trades lower quiescent current for higher dropout and stricter capacitor requirements-making it less suitable for two-cell AAA or space-limited designs.
Availability
TPS72215DBVR is available at Aetrix Electronics and suitable for portable communication devices, battery-powered microcontrollers, and SMPS post-regulation applications requiring stable component supply, long-term lifecycle support, and consistent SOT-23 packaging.
Supply support for TPS72215DBVR 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 TPS722xx family was engineered specifically for ultra-low-input-voltage, space-constrained portable systems-delivering regulated core power from near-dead batteries while minimizing external components and PCB area.
FAQ
What is the minimum input voltage required for stable operation of the TPS72215DBVR?
The TPS72215DBVR requires a minimum input voltage of 1.8 V or (VO + VDO_max), whichever is greater. With VO = 1.5 V and VDO_max ≈ 100 mV (per datasheet limits), the practical minimum is 1.8 V-enabling direct operation from two AAA batteries across their full discharge curve. This is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables.
Does the TPS72215DBVR require an external feedback resistor network?
No, the TPS72215DBVR is a fixed-output variant and does not require external feedback resistors. Pin 4 (NC/FB) must remain unconnected-unlike the adjustable TPS72201, which uses that pin as FB. This simplifies layout and eliminates resistor tolerance errors affecting output accuracy.
Can the TPS72215DBVR be used with a 0.1-µF output capacitor only, or is additional capacitance needed?
Yes, the TPS72215DBVR is fully stable with only a 0.1-µF ceramic output capacitor-no additional capacitance is required. This is enabled by its internal compensation scheme, verified across load (0–50 mA) and input voltage (1.8–5.5 V) ranges per the datasheet's stability section and typical characteristics plots.
What protection features are integrated into the TPS72215DBVR?
The TPS72215DBVR integrates thermal shutdown (trip at 170°C, recovery at ~150°C), output current limiting (~350 mA), and reverse-current blocking via its PMOS back diode. These functions are documented in the Functional Block Diagram, Application Information, and Absolute Maximum Ratings sections of the SLVS390B datasheet.
Is the TPS72215DBVR pin-compatible with other members of the TPS722xx family?
Yes, all TPS722xx variants-including TPS72215DBVR, TPS72216DBVR, and TPS72218DBVR-share identical 5-pin SOT-23 (DBV) pinouts and package dimensions. Only the output voltage and part marking differ; no PCB redesign is needed when substituting between fixed-voltage versions.
TPS72215DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 50mA
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- 550 µA
- PSRR:
- 48dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS72215DBVR FAQ
1.How can I place an order for TPS72215DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS72215DBVR 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 TPS72215DBVR reliable?
The price and inventory of TPS72215DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS72215DBVR is usually 5 days.
3.What payment methods are accepted for TPS72215DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS72215DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS72215DBVR?
TPS72215DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS72215DBVR 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 TPS72215DBVR?
For technical support, including TPS72215DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS72215DBVR requirements.
6.How does Aetrix verify that TPS72215DBVR is sourced from the original manufacturer or authorized distributors?
All TPS72215DBVR 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 TPS72215DBVR meets industry standards.
7.What is the process for return or replacement of TPS72215DBVR?
All TPS72215DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS72215DBVR, 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 TPS72215DBVR part is unused and in its original packaging.
Return procedure for TPS72215DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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