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Texas Instruments TPS72215DBVT
- Part No.:
- TPS72215DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS72215DBVT.pdf
- Description:
- IC REG LINEAR 1.5V 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:608
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Product details
Overview
TPS72215DBVT from Texas Instruments is a 1.5-V fixed-output, 50-mA low-dropout (LDO) 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 features <1 µA shutdown current-enabling direct two-AAA-battery operation in portable microcontroller power rails.
For engineers reviewing the TPS72215DBVT datasheet, TPS72215DBVT pinout, TPS72215DBVT application, or TPS72215DBVT equivalent, key selection criteria include ultra-low input voltage support (1.8 V min), cap-free stability with 0.1-µF output capacitor, thermal/overcurrent protection, and SOT-23 footprint compatibility for space-constrained battery-powered designs.
Technical Context
The TPS72215DBVT uses a PMOS pass element enabling low dropout and operation down to 1.8 V input-critical for dual-supply systems where core voltage (e.g., 1.5 V DSP rail) must be sustained as battery voltage decays. Its internal compensation eliminates need for ≥1-µF output capacitors, unlike conventional LDOs.
Enable (EN) control allows logic-level shutdown (<0.4 V low, >1.4 V high), reducing quiescent current to ≤1 µA. Built-in thermal shutdown (170°C trip, 20°C hysteresis) and current limiting (~350 mA) protect against overload and ambient temperature extremes across –40°C to 125°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±3% (1.455 V to 1.545 V) at 25°C, stable over load and temperature |
| Max Output Current | 50 mA continuous-sufficient for low-power MCU cores and peripherals without derating |
| Dropout Voltage | 50 mV typical at 50 mA-enables regulation until battery drops to ~1.55 V |
| Input Voltage Range | 1.8 V to 5.5 V-supports direct two-AAA (1.8–3.0 V) or post-regulated SMPS inputs |
| Quiescent Current | 85 µA typical at 1 mA load; ≤1 µA in shutdown-extends battery life in sleep modes |
| Output Capacitor | 0.1 µF ceramic minimum-reduces BOM cost and PCB area vs. 1-µF+ alternatives |
| Thermal Protection | 170°C shutdown with 20°C hysteresis-prevents permanent damage during sustained overload |
Pinout & Package
SOT-23 (DBV) package: 3.0 mm × 3.0 mm body, 1.45 mm max height, 5-terminal surface-mount outline per JEDEC MO-178.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN | Input supply voltage | Accepts 1.8–5.5 V; requires 0.1-µF ceramic bypass capacitor |
| 2: GND | Ground reference | Common return path for input, output, and enable circuits |
| 3: EN | Enable control input | Active-high logic: ≥1.4 V enables regulator; ≤0.4 V disables output and reduces IQ to ≤1 µA |
| 4: NC/FB | No-connect (fixed version) | Not connected internally-must remain floating; not tied to GND or any signal |
| 5: OUT | Regulated output | Delivers stable 1.5 V; requires 0.1-µF ceramic capacitor for loop stability |
Key Features
| Feature | Design Value |
|---|---|
| Cap-free stability | Stable with 0.1-µF ceramic output capacitor-eliminates need for larger, costly, or board-space-intensive caps |
| Ultra-low input voltage | Operates down to 1.8 V input-enables direct two-AAA battery use without boost converter |
| Low dropout | 50 mV typical at 50 mA-maximizes usable battery energy by extending regulation to lower cell voltages |
| Shutdown mode | <1 µA quiescent current in EN-low state-critical for long-term battery standby in IoT sensors |
| Integrated protection | Thermal shutdown (170°C) + current limit (~350 mA)-no external circuitry needed for basic fault safety |
Applications
| Portable Communication Devices | Battery-Powered Equipment |
|---|---|
|
Use Scenario: Powering baseband processors in handheld radios and Bluetooth headsets using two AAA cells. IC Role / Device Role / Timing Role: Primary 1.5-V core supply regulator delivering clean, low-noise voltage to DSP logic. Use Value: Enables full system operation down to 1.55 V input-extending runtime by ~15% versus higher-VIN regulators. |
Use Scenario: Supplying real-time clock (RTC) and sensor interface in medical wearables. IC Role / Device Role / Timing Role: Low-quiescent-current LDO maintaining precise 1.5-V bias during multi-week sleep cycles. Use Value: ≤1 µA shutdown current prevents measurable battery drain during extended idle periods. |
| PCMCIA Cards | Personal Digital Assistants |
|
Use Scenario: Providing regulated 1.5-V I/O supply for hot-pluggable PCMCIA memory cards. IC Role / Device Role / Timing Role: Input-tolerant LDO with fast start-up (<400 µs) ensuring immediate card functionality on insertion. Use Value: 0.1-µF output cap minimizes footprint-critical for thin, double-sided card layouts. |
Use Scenario: Powering ARM-based PDA application processors requiring tight 1.5-V core tolerance. IC Role / Device Role / Timing Role: Fixed-output LDO with ±3% accuracy and low line/load regulation (≤0.1%/V, ≤0.2 mV). Use Value: Maintains processor stability across battery discharge curve without external feedback tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS72215DBVR | Same electrical specs and pinout; differs only in tape-and-reel quantity (3000 vs. 250 units) | Identical functional use-selected for high-volume production runs | Choose TPS72215DBVR for cost-optimized large-batch procurement; TPS72215DBVT suits prototyping and low-MOQ builds. |
| MCP1700T-1502E/TT | 1.5-V fixed LDO; 250 mA max output; 6 µA quiescent current; SOT-23-5 package; no enable pin | Lacks EN control and thermal shutdown-requires external supervision for fault conditions | Select MCP1700T-1502E/TT only if enable functionality and integrated protection are unnecessary and higher output current is required. |
Compared with TPS72215DBVT, TPS72215DBVR offers identical performance in volume packaging, while MCP1700T-1502E/TT trades enable/shutdown and thermal protection for lower IQ and higher current-but demands additional external circuitry for safe operation in critical systems.
Availability
TPS72215DBVT is available at Aetrix Electronics and suitable for portable communication devices, battery-powered medical wearables, and PCMCIA card power management requiring stable component supply, long-lifecycle availability, and RoHS-compliant sourcing.
Supply support for TPS72215DBVT 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 ICs, with decades of reliability in industrial and portable power solutions.
The TPS722xx family was designed specifically for ultra-low-input-voltage, space-constrained applications-targeting battery-powered DSPs, microcontrollers, and peripherals needing cap-free stability and sub-1-µA shutdown.
FAQ
What is the minimum input voltage required for TPS72215DBVT to regulate 1.5 V output?
The TPS72215DBVT requires a minimum input voltage of 1.55 V under full 50-mA load (1.5 V + 50 mV dropout), but its specified operating range starts at 1.8 V per datasheet. At light loads, regulation is possible below 1.8 V; however, 1.8 V is the guaranteed minimum for full-spec operation across temperature and process variation. This enables reliable two-AAA battery use throughout discharge.
Can TPS72215DBVT operate without an output capacitor?
No-TPS72215DBVT requires a minimum 0.1-µF ceramic capacitor on the OUT pin for stability, as confirmed in the datasheet's "External Capacitor Requirements" section. Omitting it risks oscillation or regulation failure. Larger values (e.g., 1 µF) improve transient response and noise rejection but are not mandatory for basic functionality.
Does TPS72215DBVT have reverse current protection?
Yes-the TPS72215DBVT integrates a PMOS pass element with a built-in back diode that safely conducts reverse current when input voltage falls below output voltage (e.g., during power-down). However, this conduction is not current-limited; external limiting may be needed for sustained reverse-voltage conditions.
What is the thermal shutdown behavior of TPS72215DBVT?
TPS72215DBVT shuts down at 170°C junction temperature and automatically recovers when junction temperature drops to ~150°C (20°C hysteresis). During shutdown, output is disabled and quiescent current remains ≤1 µA. Recovery is fully autonomous-no reset or enable toggle is required.
Is the NC/FB pin on TPS72215DBVT required to be connected?
No-the NC/FB pin (Pin 4) on TPS72215DBVT is internally unconnected and must remain floating-not tied to GND, VOUT, or any other node. Connecting it may cause undefined behavior or damage, as explicitly stated in the Terminal Functions table: "This pin must be left floating and not connected to GND."
TPS72215DBVT 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):
- 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
TPS72215DBVT FAQ
1.How can I place an order for TPS72215DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS72215DBVT 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 TPS72215DBVT reliable?
The price and inventory of TPS72215DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS72215DBVT is usually 5 days.
3.What payment methods are accepted for TPS72215DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS72215DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS72215DBVT?
TPS72215DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS72215DBVT 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 TPS72215DBVT?
For technical support, including TPS72215DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS72215DBVT requirements.
6.How does Aetrix verify that TPS72215DBVT is sourced from the original manufacturer or authorized distributors?
All TPS72215DBVT 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 TPS72215DBVT meets industry standards.
7.What is the process for return or replacement of TPS72215DBVT?
All TPS72215DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS72215DBVT, 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 TPS72215DBVT part is unused and in its original packaging.
Return procedure for TPS72215DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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