LT3009ESC8-5#PBF Analog Devices Integrated Circuit (SOT23 (8-Pin)) In Stock
Analog Devices LT3009ESC8-5#PBF is a 3 µA quiescent current, 20 mA fixed -5 V low dropout linear regulator operating from 1.6 V to 20 V input. With 0.28 V typical dropout at full load and housed in an 8-pin SOT-23 package, it is ideal for battery-powered and always-on low-power applications.
- Manufacturer
- Analog Devices
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LT3009ESC8-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3009ESC8-5#PBF?
- Ultra-low 3 µA quiescent current extends battery life in always-on IoT sensors and wearable devices powered by coin cells or thin-film batteries
- 20 mA output current with 0.28 V typical dropout voltage supports low-power microcontrollers and sensor rails from 1.6 V to 20 V input
- Compact 8-pin SOT-23 package (3 mm x 3 mm) minimizes board area for space-constrained portable and wearable electronics
What is LT3009ESC8-5#PBF used for?
The LT3009ESC8-5#PBF is designed for battery-powered IoT nodes, medical wearables, and remote sensor modules where a stable 5 V rail at 20 mA must be maintained with minimal battery drain. Its 3 µA quiescent current makes it suitable for always-on supply circuits that remain active during deep-sleep states, such as real-time clock supplies and wireless module keep-alive rails. The wide 1.6 V to 20 V input range allows it to operate from primary lithium cells, 9 V batteries, and standard 12 V or 15 V regulated supplies in industrial monitoring equipment.
What are the specifications of LT3009ESC8-5#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1639 |
| Reach Compliance Code | Compliant |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.45V |
| Dropout Voltage1-Nom | 0.28V |
| Input Voltage Absolute-Max | 22V |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 1.6V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0125% |
| Load Regulation-Max | 0.025% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.02A |
| Output Voltage1-Max | 5.1V |
| Output Voltage1-Min | 4.9V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.09,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| ## LT3009ESC8-5#PBF Alternates Showing results | Image |
| Package | SOT23 (8-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LT3009ESC8-5#PBF datasheet?
LT3009ESC8-5#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3009ESC8-5#PBF?
Compatible alternatives and drop-in replacements for LT3009ESC8-5#PBF:
suggested
Frequently Asked Questions
What is the quiescent current of the LT3009ESC8-5#PBF and why does it matter for battery-powered designs?
The LT3009ESC8-5#PBF has an ultra-low quiescent current of only 3 µA, which means the regulator itself draws just 3 microamps when the load is idle. In a CR2032 coin cell design with 220 mAh capacity, this quiescent current alone would theoretically allow over 8 years of standby life, making it excellent for IoT sensors and medical wearables that spend most of their time in deep sleep.
What dropout voltage does the LT3009ESC8-5#PBF exhibit at full 20 mA load, and what minimum input voltage is required?
At full 20 mA output, the LT3009ESC8-5#PBF has a typical dropout voltage of 0.28 V and a maximum of 0.45 V. This means a minimum input of approximately 5.28 V to 5.45 V is needed to maintain the 5 V output in regulation, which is easily satisfied by a single 9 V battery or a 6 V supply rail in portable and industrial equipment.
How does the LT3009ESC8-5 compare to standard 20 mA LDOs with higher quiescent current for always-on application circuits?
Standard 20 mA LDOs in the SOT-23 package typically consume 50 µA to 100 µA quiescent current, which is 17 to 33 times more than the 3 µA of the LT3009ESC8-5. In an always-on 5 V sensor circuit powered from a 1000 mAh AA cell, replacing a 75 µA LDO with the LT3009ESC8-5 could extend standby battery life from approximately 556 days to over 38 years — a decisive advantage in remote field-deployed equipment.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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