TPS7A2031PDBVR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TPS7A2031PDBVR is a 300 mA ultra-low-noise, high-PSRR LDO linear regulator from Texas Instruments with a 1.6 V to 6 V input range and 145 mV maximum dropout voltage. Its fixed output and 0.019% maximum load regulation make it ideal for sensitive RF and analog signal chains. Available in a 5-pin SOT-23 package on tape-and-reel.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS7A2031PDBVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1293(MOQ 250)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 300 mA output current with ultra-low 145 mV maximum dropout voltage at full load from a 1.6 V–6 V input range
- Ultra-low-noise output and high PSRR for sensitive RF, ADC, and PLL power supply applications
- 0.019% maximum load regulation and 0.2418% maximum line regulation for precision voltage accuracy
- Compact 5-pin SOT-23 (R-PDSO-G5) footprint with RoHS-compliant finish for space-constrained portable designs
Applications
The TPS7A2031PDBVR is used to power noise-sensitive analog subsystems such as ADC reference inputs, PLL VCOs, and RF front-end circuits where supply noise below 10 µV RMS is required and switching regulator ripple would degrade signal quality. Its 1.6 V minimum input and 145 mV dropout also make it an efficient post-regulator in battery-powered IoT devices and wearables operating from single-cell Li-ion supplies down to 3.5 V.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.145V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.6V |
| JESD-30 Code | R-PDSO-G5 |
| Line Regulation-Max | 0.2418% |
| Load Regulation-Max | 0.019% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 3.1465V |
| Output Voltage1-Min | 3.0535V |
| Output Voltage1-Nom | 3.1V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.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
What dropout voltage does the TPS7A2031PDBVR specify, and how does it affect battery-powered designs?
The TPS7A2031PDBVR has a maximum dropout voltage of 145 mV at full 300 mA load. This low dropout allows the regulator to maintain a regulated 3.0 V output from a Li-ion cell discharged to 3.15 V, extracting more usable energy from the battery compared to standard LDOs with 300 mV or higher dropout, thereby extending device run time by up to 10% in typical portable electronics.
Why is the TPS7A2031PDBVR's high PSRR important when powering an ADC or PLL from a switching regulator output?
A switching regulator typically superimposes hundreds of millivolts of ripple at its switching frequency (often 1 MHz or higher) on its output. A high-PSRR LDO attenuates this switching noise by 60 dB or more, reducing a 100 mV peak ripple to less than 0.1 mV at the ADC supply pin. This suppression prevents spurious tones in the ADC spectrum and phase noise degradation in a PLL, which is critical for 16-bit or higher resolution data converters.
How does the TPS7A2031PDBVR's 0.019% load regulation compare to general-purpose LDOs for precision reference circuits?
At 0.019% maximum load regulation, the TPS7A2031PDBVR output shifts by less than 570 µV when the load changes from 1 mA to 300 mA on a 3.0 V rail. General-purpose LDOs often specify 0.1% to 0.5% load regulation, meaning a voltage shift of 3 mV to 15 mV over the same current swing. The TPS7A2031PDBVR's tighter specification makes it suitable as a supply for precision references and sensor bridges where a 1 mV supply error translates directly to a measurable offset in the output signal.
For a compact Bluetooth module power supply, what is the board footprint of the TPS7A2031PDBVR's SOT-23 package?
The 5-pin SOT-23 (JESD-30 code R-PDSO-G5) package measures approximately 1.6 mm × 2.9 mm with a maximum body height of 1.45 mm. This footprint occupies less than 5 mm² of PCB area, allowing the LDO to be placed immediately adjacent to the RF module's supply pin to minimize loop inductance and reduce high-frequency noise pickup on the supply rail.
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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+ | $0.1732 | $43.29 |
| 500+ | $0.1645 | $82.26 |
| 1000+ | $0.1574 | $157.42 |
| 1345+ | $0.1492 | $200.67 |
| 1735+ | $0.1442 | $250.19 |
| 2325+ | $0.1293 | $300.62 |
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