TPS7A1012PDSER Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
TPS7A1012PDSER is an ultra-low-dropout (LDO) linear regulator delivering 300 mA with a typical dropout voltage of only 70 mV at full load, operating from 1.7 V to 3.3 V input in a 6-pin SOT-23 (SON) package. Its fixed output voltage and extremely low quiescent current make it ideal for battery-powered IoT devices and portable electronics. Suited for always-on power rails in wearables, wireless sensors, and precision analog circuits requiring clean, stable supply voltage.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TPS7A1012PDSER Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 70 mV typical dropout voltage at 300 mA enabling near-rail-to-rail regulation
- Low quiescent current for battery-powered always-on IoT and wearable designs
- Input voltage range 1.7 V to 3.3 V compatible with single-cell Li-ion and Li-polymer batteries
- 300 mA output current in a compact 6-pin SOT-23 / SON package
- Fixed output voltage for reliable point-of-load regulation without external resistors
- RoHS-compliant Pb-free package (JESD-609 e4) rated for high-volume tape-and-reel supply
Applications
The TPS7A1012PDSER is designed for always-on supply rails in wearable health monitors, fitness trackers, and IoT sensor nodes where ultra-low quiescent current preserves battery charge during standby intervals lasting hours or days. It provides a clean, stable output voltage with only 70 mV dropout at 300 mA, making it suitable for powering precision analog front ends, BLE SoCs, and low-noise sensor circuits from single-cell Li-ion batteries in the 1.7 V to 3.3 V range. Portable medical devices and compact industrial wireless nodes also benefit from its 6-pin SON footprint, which minimizes PCB area while delivering reliable LDO regulation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.09V |
| Dropout Voltage1-Nom | 0.07V |
| Input Voltage Absolute-Max | 3.6V |
| Input Voltage-Max | 3.3V |
| Input Voltage-Min | 1.7V |
| JESD-30 Code | S-PDSO-N6 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.0000192% |
| Load Regulation-Max | 0.00071976% |
| 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 | 1.218V |
| Output Voltage1-Min | 1.182V |
| Output Voltage1-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC6,.06,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.5% |
| Package | Small Outline No-lead |
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
How low is the dropout voltage of TPS7A1012PDSER and why does this matter for Li-ion battery designs?
TPS7A1012PDSER has a typical dropout voltage of 70 mV at 300 mA output current, meaning it can maintain regulation when the input is only 70 mV above the output. For a Li-ion battery discharging from 3.7 V down to 3.0 V, a 70 mV dropout LDO can continue regulating a 2.9 V or 3.0 V output rail until the battery is nearly fully depleted, extracting up to 20–30% more usable capacity versus a 300 mV dropout LDO.
What input voltage range is supported by TPS7A1012PDSER?
The TPS7A1012PDSER accepts input voltages from 1.7 V to 3.3 V (absolute maximum 3.6 V), covering the discharge curve of single-cell Li-ion batteries (3.0 V to 4.2 V after a pre-regulator step) and directly matching 3.3 V system rails from coin cells or regulated boost converters. This range suits IoT sensor nodes powered by 2 × AAA NiMH cells in series (2.4 V nominal) as well as 3.0 V coin cells and 3.3 V primary lithium batteries.
For an always-on BLE beacon design, how does TPS7A1012PDSER extend battery runtime?
In a BLE beacon running at a few percent duty cycle, the LDO quiescent current dominates total average consumption between transmit bursts. TPS7A1012PDSER's ultra-low quiescent current keeps the always-on supply loss well below 10 µA during radio sleep intervals, compared to 50–100 µA for standard LDOs — potentially doubling battery runtime in a coin-cell powered beacon that draws 300 mA peaks for only 5 ms every 1 second of advertising interval.
What package does TPS7A1012PDSER use and how compact is the total solution footprint?
TPS7A1012PDSER comes in a 6-pin SON (SOT-23 compatible, JESD-30 code S-PDSO-N6) package measuring approximately 2 mm × 2 mm. Together with a small input bypass capacitor (1 µF) and output capacitor (1 µF), the total LDO solution fits within a 10 mm² PCB area, making it one of the smallest 300 mA LDO solutions available for wearable and miniaturized IoT hardware.
Can TPS7A1012PDSER power a precision analog sensor that requires a very clean supply rail?
Yes, TPS7A1012PDSER's LDO architecture provides inherently low output noise compared to switching regulators, with power supply rejection ratio (PSRR) values typically above 60 dB at low frequencies. This makes it suitable for powering precision 16-bit or 24-bit ADC references, MEMS accelerometers, and analog front-end amplifiers where switching ripple above 1 mV would degrade signal-to-noise ratio. Its 300 mA capacity covers most precision sensor circuits operating from the 1.7 V to 3.3 V input window.
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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.
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