TPS7A2018PDQNR Texas Instruments Integrated Circuit (HXSON) In Stock
TPS7A2018PDQNR is a 300 mA ultra-low-noise, low-IQ LDO linear regulator from Texas Instruments with high PSRR, 2.1 V to 6 V input range, and a maximum 0.2 V dropout voltage. It operates from -40°C to 125°C in a compact 4-pin X2SON package with a line regulation of 0.21%. Available from global stock with fast worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS7A2018PDQNR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1249(MOQ 250)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low-noise high-PSRR LDO delivering 300 mA output with only 0.2 V maximum dropout for near-lossless regulation
- Wide 2.1 V to 6 V input range with -40°C to 125°C operating temperature enabling industrial and automotive designs
- Tiny 4-pin X2SON (S-PDSO-N4) package minimizes PCB footprint for space-constrained RF, sensor, and wearable applications
Applications
TPS7A2018PDQNR is targeted at noise-sensitive analog and RF circuits where a clean power supply rail is critical, such as ADC reference buffers, RF transceivers, and precision sensor front ends. Its ultra-low-noise output and high power-supply rejection ratio (PSRR) suppress switching regulator ripple and EMI noise from adjacent power stages. The device is also suitable for battery-powered wearables and IoT modules that demand low quiescent current while delivering stable 1.8 V output from a single-cell Li-Ion battery.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-09-11 |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.2V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.1V |
| JESD-30 Code | S-PDSO-N4 |
| Line Regulation-Max | 0.2106% |
| Load Regulation-Max | 0.013% |
| 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 | 1.83V |
| Output Voltage1-Min | 1.77V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC4,.04,25 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, EXTREMELY THIN PROFILE |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.66% |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum dropout voltage of TPS7A2018PDQNR, and how does this affect battery-powered designs?
TPS7A2018PDQNR has a maximum dropout voltage of 0.2 V. In a single-cell Li-Ion battery system with a discharge floor near 3.0 V, a 0.2 V dropout allows the regulator to maintain a stable 1.8 V output until the battery falls below 2.0 V, extending usable battery run-time compared to regulators with 0.5 V or higher dropout specifications.
Which noise-sensitive circuit types benefit most from TPS7A2018PDQNR's high PSRR and ultra-low-noise output?
RF transceiver PLLs, ADC reference networks, and low-noise amplifier bias circuits benefit most from TPS7A2018PDQNR's ultra-low-noise and high PSRR characteristics. Ripple and switching noise from a 1 MHz DC-DC converter are attenuated by the PSRR, keeping the analog supply clean to below 10 µV RMS, which is critical for 16-bit or 24-bit ADC dynamic range performance.
How does TPS7A2018PDQNR's 4-pin X2SON package compare in size to a standard SOT-23 LDO, and why does it matter for wearables?
The 4-pin X2SON (S-PDSO-N4) package has a body size of approximately 0.8 mm x 0.8 mm, versus the 2.9 mm x 1.6 mm SOT-23 footprint, occupying roughly 15x less PCB area. For wearable and IoT designs targeting a sub-10 mm² power section, this 0.64 mm² footprint allows placement next to the RF module without consuming layout area needed for antenna keep-out zones.
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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+ | $0.1583 | $39.57 |
| 500+ | $0.1503 | $75.14 |
| 1000+ | $0.1437 | $143.69 |
| 15000+ | $0.1274 | $1910.70 |
| 21000+ | $0.1261 | $2647.89 |
| 30000+ | $0.1249 | $3745.50 |
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