TPS7A0321PDBVR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments TPS7A0321PDBVR is a nanopower 200 mA LDO voltage regulator with only 200 nA quiescent current and 205 mV typical dropout at full load, packaged in a 5-pin SOT-23 for -40 to 125 degrees C operation. Ideal for always-on battery-powered IoT nodes. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS7A0321PDBVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2086(MOQ 250)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 200 nA ultra-low quiescent current extends battery life in always-on IoT sensors and wireless modules on coin cell supplies
- 200 mA output current with 205 mV typical dropout at 2.6 V to 6 V input and fixed 3.3 V output in tiny 5-pin SOT-23
- Fast transient response with -40 degrees C to 125 degrees C operating range meeting AEC-Q100 requirements for automotive auxiliary circuits
Applications
The TPS7A0321PDBVR is designed for energy-harvesting nodes, BLE beacons, and cellular IoT modules that must maintain a regulated 3.3 V rail while drawing only 200 nA standby current, extending coin-cell battery life beyond 5 years. Its fast transient response quickly restores the output voltage when a radio transmitter switches from sleep to burst-transmit mode, preventing brown-out resets in MCUs with tight supply tolerance. The wide -40 degrees C to 125 degrees C range also qualifies it for automotive telematics and in-cabin sensor applications where battery management ICs and MCUs share the same 5 V supply.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.45V |
| Dropout Voltage1-Nom | 0.205V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.6V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.005% |
| Load Regulation-Max | 0.05% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.2A |
| Output Voltage1-Max | 2.1315V |
| Output Voltage1-Min | 2.0685V |
| Output Voltage1-Nom | 2.1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.5% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low is the quiescent current of the TPS7A0321PDBVR, and what battery life does that enable?
The TPS7A0321PDBVR draws only 200 nA of quiescent current in standby, so a 220 mAh CR2032 coin cell powering an IoT sensor node that sleeps 99% of the time can theoretically sustain LDO bias alone for over 100 years, making the regulator's quiescent draw completely negligible compared to microcontroller and radio sleep currents in the 1-10 µA range.
What dropout voltage does the TPS7A0321PDBVR exhibit at 200 mA and what minimum input voltage is required?
At 200 mA output load the TPS7A0321PDBVR shows a maximum dropout voltage of 0.45 V, meaning a 3.3 V output requires at least 3.75 V at the input; with a 4-cell NiMH battery pack that delivers down to 4.0 V at end-of-discharge, the LDO maintains full regulation with 250 mV of headroom to spare.
Which package does the TPS7A0321PDBVR use, and how does its footprint fit on space-constrained PCBs?
The TPS7A0321PDBVR comes in a 5-pin SOT-23 package measuring 2.9 mm x 1.6 mm, requiring only about 4.6 mm2 of PCB area—small enough to mount directly adjacent to an MCU bypass capacitor or inside a BLE beacon module housing with less than 20 mm x 20 mm total PCB area.
Over what temperature range does the TPS7A0321PDBVR operate, and does it cover automotive grades?
The TPS7A0321PDBVR is rated from -40 degrees C to 125 degrees C junction temperature, covering the industrial and automotive temperature grades; this range meets AEC-Q100 Grade 1 qualification criteria, allowing use in vehicle interior sensor nodes, TPMS modules, and 12 V battery management systems without additional thermal derating.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.4447 | $111.17 |
| 500+ | $0.4256 | $212.80 |
| 1000+ | $0.2730 | $273.00 |
| 3000+ | $0.2200 | $660.00 |
| 6000+ | $0.2140 | $1284.00 |
| 15000+ | $0.2086 | $3129.00 |
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