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Texas Instruments TPS72201DBVT
- Part No.:
- TPS72201DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS72201DBVT.pdf
- Description:
- IC REG LIN POS ADJ 50MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:495
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Product details
Overview
TPS72201DBVT from Texas Instruments is an adjustable low-dropout linear regulator (LDO) in a 5-pin SOT-23 package, delivering up to 50 mA with 1.22 V to 2.5 V programmable output, 50 mV typical dropout at full load, and operation down to 1.8 V input. It enables compact, battery-efficient power for microcontroller core rails and portable DSP supplies.
For engineers reviewing the TPS72201DBVT datasheet, TPS72201DBVT pinout, TPS72201DBVT application, or TPS72201DBVT equivalent, key selection criteria include its 0.1 µF ceramic capacitor stability, <1 µA shutdown current, thermal/overcurrent protection, and compatibility with dual-battery (AAA) input sources.
Technical Context
The TPS72201DBVT uses a PMOS pass element enabling ultra-low dropout and operation from 1.8 V input-supporting direct two-AAA battery use. Its internal compensation eliminates need for ≥1 µF output capacitance, stabilizing across 0.1–4.7 µF ceramic capacitors.
Enable control (EN) provides logic-level shutdown with <1 µA quiescent current; feedback (FB) pin allows precise output programming via external resistor divider. Thermal shutdown activates at 170°C with 20°C hysteresis, and current limiting engages near 350 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 50 mA maximum continuous-sufficient for MCU core, sensor, or low-power logic rails |
| Dropout Voltage | 50 mV typical at 50 mA-enables regulation even when input drops to VO + 50 mV |
| Input Voltage Range | 1.8 V to 5.5 V-supports direct two-AAA (1.8–3.0 V) or post-boost supply operation |
| Quiescent Current | 85 µA typical in active mode; <1 µA in shutdown-extends battery life in sleep states |
| Output Capacitor | 0.1 µF ceramic minimum-reduces BOM cost and board area vs. legacy 1–10 µF requirements |
| Reference Voltage | 1.225 V typical at FB pin-sets precision for external resistor-divider output programming |
| Thermal Shutdown | 170°C trip with 20°C hysteresis-prevents permanent damage during overload or poor heatsinking |
Pinout & Package
TPS72201DBVT is housed in a 5-pin SOT-23 (DBV) package measuring 3.0 mm × 3.0 mm × 1.45 mm, optimized for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: IN | Input supply voltage | Accepts 1.8–5.5 V; requires 0.1 µF ceramic bypass to GND |
| 2: GND | Ground reference | Common return path for input, output, and internal circuitry |
| 3: EN | Enable control input | Logic-high (>1.4 V) enables regulation; logic-low (<0.4 V) disables output and reduces IQ to <1 µA |
| 4: NC/FB | Feedback input (adjustable mode) | Connects to resistor divider for output programming; must float if unused (not grounded) |
| 5: OUT | Regulated output voltage | Delivers stable 1.22–2.5 V (programmed), with 0.1 µF ceramic capacitor required for stability |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-free stability | Stable with 0.1 µF ceramic output capacitor-eliminates need for larger, costly electrolytics |
| Ultra-low input voltage | Operates down to 1.8 V input-enables direct two-AAA battery use without boost stage |
| Adjustable output range | 1.22 V to 2.5 V via external resistor divider-supports diverse core voltage requirements |
| Integrated protection | Current limit (~350 mA) and thermal shutdown (170°C) prevent failure under fault conditions |
| Low-noise regulation | 90 µV RMS output noise (200 Hz–100 kHz)-suitable for noise-sensitive analog or RF subsystems |
Applications
| Portable Communication Devices | Battery-Powered Equipment |
|---|---|
Use Scenario: Powering baseband processor core in Bluetooth headsets or IoT edge nodes. IC Role / Device Role / Timing Role: Adjustable LDO providing clean, low-noise 1.5 V core rail with fast transient response. Use Value: Enables 2×AAA direct operation and extends runtime via 85 µA quiescent current and <1 µA shutdown. | Use Scenario: Supplying real-time clock (RTC) and low-power MCU in handheld medical monitors. IC Role / Device Role / Timing Role: Primary voltage regulator maintaining stable 1.8 V from depleting alkaline cells. Use Value: Maintains regulation down to 1.8 V input-maximizes usable battery capacity before cutoff. |
| PCMCIA Cards | Personal Digital Assistants |
Use Scenario: Providing isolated 1.22–2.5 V I/O interface voltage in hot-pluggable PCMCIA modems. IC Role / Device Role / Timing Role: Enable-controlled LDO ensuring power sequencing and safe insertion/removal. Use Value: EN pin allows host controller to gate power, preventing bus contention during card insertion. | Use Scenario: Regulating DSP core voltage in legacy PDAs with dual-rail architecture (VCORE/VIO). IC Role / Device Role / Timing Role: Core supply LDO delivering 1.5 V at 50 mA with sub-400 µs startup time. Use Value: Faster startup than switching regulators-simplifies power sequencing and reduces system boot latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS72215DBVT | Fixed 1.5 V output; no FB pin; identical package, dropout, and quiescent current | Eliminates external resistors but lacks output flexibility-used where 1.5 V is fixed requirement | Select when fixed 1.5 V simplifies design and reduces component count |
| MCP1702T-3302E/MB | Fixed 3.3 V output; 250 mA rating; higher IQ (2 µA shutdown); requires 1 µF min output cap | Higher current and voltage, but incompatible for sub-2.5 V core rails and less efficient on AAA batteries | Choose only for 3.3 V systems needing >50 mA; not suitable for TPS72201DBVT's low-VIN, low-VO use cases |
Compared with TPS72201DBVT, TPS72215DBVT offers pin-compatible simplicity for fixed 1.5 V, while MCP1702T-3302E/MB targets higher-voltage, higher-current roles-neither replaces the adjustable, ultra-low-VIN capability of TPS72201DBVT in battery-critical designs.
Availability
TPS72201DBVT is available at Aetrix Electronics and suitable for portable communication devices, battery-powered medical instruments, and PCMCIA peripheral modules requiring stable component supply and long-term lifecycle support.
Supply support for TPS72201DBVT 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 LDO design expertise and broad automotive/industrial qualification.
The TPS722xx family was engineered specifically for ultra-low-input-voltage, space-constrained portable applications-prioritizing minimal external components, dual-AAA compatibility, and robust protection in 3 mm × 3 mm SOT-23 packaging.
FAQ
What output voltage range does the TPS72201DBVT support?
The TPS72201DBVT supports an adjustable output voltage range of 1.22 V to 2.5 V, set by an external resistor divider connected to the FB pin. This range is defined by its internal 1.225 V reference voltage and allows precise tailoring for MCU core, DSP, or sensor supply rails without changing the IC.
Can the TPS72201DBVT operate directly from two AAA batteries?
Yes, the TPS72201DBVT can operate directly from two AAA batteries, which provide 3.0 V fresh and drop to ~1.8 V at end-of-life. Its 1.8 V minimum input voltage and 50 mV typical dropout enable regulation across the full battery discharge curve-eliminating need for a boost converter.
What is the minimum output capacitor required for stability with the TPS72201DBVT?
The TPS72201DBVT requires only a 0.1 µF ceramic capacitor on the output for stability, thanks to its internally compensated architecture. This is significantly smaller than the 1–10 µF typically needed by conventional LDOs, reducing cost, footprint, and ESL-related noise.
How does the enable (EN) pin function on the TPS72201DBVT?
The EN pin on the TPS72201DBVT controls regulator operation: a logic-high signal (>1.4 V) enables output regulation, while a logic-low (<0.4 V) disables the output and reduces quiescent current to <1 µA. This supports low-power sleep modes and controlled power sequencing in portable systems.
Does the TPS72201DBVT include built-in protection features?
Yes, the TPS72201DBVT integrates overcurrent limiting (~350 mA) and thermal shutdown (170°C trip, 20°C hysteresis). It also includes a PMOS back diode that safely conducts reverse current during input brownout-protecting the device and downstream circuitry without external components.
TPS72201DBVT 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:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.22V
- Voltage - Output (Max):
- 2.5V
- 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
TPS72201DBVT FAQ
1.How can I place an order for TPS72201DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS72201DBVT 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 TPS72201DBVT reliable?
The price and inventory of TPS72201DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS72201DBVT is usually 5 days.
3.What payment methods are accepted for TPS72201DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS72201DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS72201DBVT?
TPS72201DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS72201DBVT 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 TPS72201DBVT?
For technical support, including TPS72201DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS72201DBVT requirements.
6.How does Aetrix verify that TPS72201DBVT is sourced from the original manufacturer or authorized distributors?
All TPS72201DBVT 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 TPS72201DBVT meets industry standards.
7.What is the process for return or replacement of TPS72201DBVT?
All TPS72201DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS72201DBVT, 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 TPS72201DBVT part is unused and in its original packaging.
Return procedure for TPS72201DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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