PS7A0522PDBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The PS7A0522PDBZR is an ultra-low quiescent current (1 µA typical) 200 mA fixed-output LDO regulator with a maximum dropout voltage of 382 mV and input range of 2.7 V to 5.5 V. It delivers excellent line regulation of 0.018% and load regulation of 0.062% in a compact 3-pin SOT-23 package. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PS7A0522PDBZR 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 PS7A0522PDBZR?
- Ultra-low 1 µA quiescent current extends battery runtime in sleep-mode IoT nodes and wearables
- 200 mA output current with 382 mV maximum dropout voltage, enabling operation from nearly depleted Li-Ion or alkaline cells
- 0.018% line regulation and 0.062% load regulation in a 3-pin SOT-23 package for precise, low-noise analog supply rails
What is PS7A0522PDBZR used for?
The PS7A0522PDBZR is engineered for always-on battery-powered systems such as IoT sensor nodes, fitness wearables, and wireless beacons where the LDO quiescent current dominates total standby consumption. Its 1 µA IQ allows a coin cell to power a system through months of deep-sleep operation without a measurable impact on battery capacity. The 3-pin SOT-23 package occupies minimal PCB space, making it straightforward to place close to sensitive analog loads in wearable and medical device layouts.
What are the specifications of PS7A0522PDBZR?
| Date Of Intro | 2019-06-25 |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.382V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.7V |
| 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 | 2.266V |
| Output Voltage1-Min | 2.134V |
| Output Voltage1-Nom | 2.2V |
| 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 PS7A0522PDBZR datasheet?
PS7A0522PDBZR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PS7A0522PDBZR?
Compatible alternatives and drop-in replacements for PS7A0522PDBZR:
Frequently Asked Questions
How does the 1 µA quiescent current of the PS7A0522PDBZR extend battery life in a sleep-mode IoT sensor?
At 1 µA quiescent current and a 200 mAh coin cell, the LDO alone adds fewer than 0.2 mAh of drain per day from standby bias. In a sensor that sleeps 99% of the time at 5 µA total system current, the PS7A0522PDBZR's contribution is under 20% of total idle power, compared to a 50 µA-IQ competitor that would dominate standby current and reduce battery life by several months.
What is the minimum input voltage the PS7A0522PDBZR needs to maintain a regulated 200 mA output?
The device requires an input voltage at least 382 mV above the output voltage at maximum 200 mA load—the maximum dropout specification. For a 3.3 V output rail, the input must remain above 3.682 V. On a Li-Ion cell that discharges to 3.0 V, the regulator will drop out before the cell is fully depleted, so the system engineer should account for this cutoff in the battery life budget.
How does the PS7A0522PDBZR's load regulation of 0.062% perform in a precision ADC reference supply application?
At 0.062% load regulation, a 3.3 V output changes by just 2 mV across the full 0 mA to 200 mA load range. For a 12-bit ADC with a 3.3 V reference, that 2 mV shift corresponds to roughly 2.5 LSBs of reference error—acceptable for most data acquisition applications. For 16-bit ADC designs requiring sub-LSB reference stability, an additional 10 µF output capacitor reduces dynamic load transient error further.
In a compact wearable design, how does the PS7A0522PDBZR's 3-pin SOT-23 package compare to alternatives for board-space efficiency?
The SOT-23 package body measures approximately 2.9 mm × 1.3 mm, one of the smallest through-board LDO outlines available. With only 2 external capacitors (typically 1 µF input and 1 µF output), the total solution area is under 15 mm², fitting within the antenna-keepout zone of a wearable BLE SoC module. This is roughly half the footprint of competing 5-pin SOT-23-5 LDO solutions offering similar current ratings.
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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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