PS7A0512PDBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The PS7A0512PDBZR is an ultra-low-quiescent-current 200 mA LDO regulator from Texas Instruments with only 1 µA IQ for extended battery life. It accepts input voltages from 1.7 V to 5.5 V with a maximum dropout of 0.679 V and provides excellent line regulation of 0.018%. Housed in a 3-pin SOT-23 package with worldwide availability and RoHS-compliant finish.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PS7A0512PDBZR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PS7A0512PDBZR?
- Ultra-low 1 µA quiescent current for maximum battery runtime in always-on IoT and wearable designs
- 200 mA output current with 0.679 V maximum dropout voltage across 1.7 V to 5.5 V input range
- Exceptional 0.018% line regulation and 0.062% load regulation for stable, low-noise power supply output
- Compact 3-pin SOT-23 package enabling minimal PCB footprint in space-constrained portable applications
What is PS7A0512PDBZR used for?
The PS7A0512PDBZR is designed for battery-powered devices such as wearables, wireless sensors, and IoT nodes where minimizing quiescent current below 1 µA dramatically extends battery life. Its 200 mA output capacity and input range from 1.7 V to 5.5 V accommodate a wide variety of single-cell Li-ion and alkaline battery-powered architectures. The 3-pin SOT-23 package also fits handheld medical monitors, asset trackers, and other compact portable instruments.
What are the specifications of PS7A0512PDBZR?
| Date Of Intro | 2019-05-22 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.679V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 1.7V |
| JESD-30 Code | R-PDSO-G3 |
| Line Regulation-Max | 0.018% |
| Load Regulation-Max | 0.062% |
| 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 | 1.236V |
| Output Voltage1-Min | 1.164V |
| Output Voltage1-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 3% |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PS7A0512PDBZR datasheet?
PS7A0512PDBZR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PS7A0512PDBZR?
Compatible alternatives and drop-in replacements for PS7A0512PDBZR:
Frequently Asked Questions
How does the 1 µA quiescent current of the PS7A0512PDBZR benefit a coin-cell powered sensor design?
With only 1 µA quiescent current, the PS7A0512PDBZR draws negligible power when the sensor load is idle. For a CR2032 coin cell with approximately 225 mAh capacity, a device drawing 1 µA standby current can sustain the regulator alone for over 25 years, greatly extending system shelf life. This makes it well-suited for smoke detectors, wireless environmental sensors, and similar always-on monitoring devices.
What is the maximum output current and dropout voltage of the PS7A0512PDBZR at low supply conditions?
The PS7A0512PDBZR delivers up to 200 mA output current with a maximum dropout voltage of 0.679 V. This means a 3.3 V output can be maintained from inputs as low as approximately 4 V, and a 1.8 V output can be supported from a heavily discharged Li-ion cell above 2.5 V. The low dropout characteristic helps extract maximum usable energy from depleted batteries in handheld designs.
Which supply voltage rails are compatible with the PS7A0512PDBZR input range?
The PS7A0512PDBZR accepts input voltages from 1.7 V to 5.5 V, covering single-cell Li-ion batteries (2.5 V to 4.2 V), two-cell alkaline stacks (1.8 V to 3 V), and standard 5 V USB power rails. The absolute maximum input is 6 V, providing margin against USB voltage transients. This broad input range makes the device suitable for mixed-supply portable systems without additional input protection.
How does the PS7A0512PDBZR compare to a standard LDO with 50–100 µA quiescent current for a duty-cycled application?
In a duty-cycled application where the load is active for 1% of the time, an LDO with 100 µA quiescent current contributes roughly 99 µA of average idle drain, versus 1 µA for the PS7A0512PDBZR—a 99× reduction. Over a 1-year deployment on a 500 mAh battery, this saves approximately 867 mAh, effectively doubling or tripling battery life in low-duty-cycle IoT nodes.
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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.
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