LT1521CMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LT1521CMS8#PBF is a 300 mA adjustable low-dropout linear regulator from Analog Devices, operating from 3.8 V to 20 V input with only 0.5 V typical dropout voltage. Housed in an 8-pin MSOP package, it delivers stable regulated output with line regulation of 0.033 %/V and load regulation of 1.4 %. Available in RoHS-compliant PBF configuration for lead-free designs.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1521CMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1200(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 300 mA output current with only 0.5 V typical dropout voltage for high-efficiency operation
- Adjustable output voltage from 3.8 V to 20 V input range suits diverse power rail requirements
- Ultra-compact 8-pin MSOP package minimizes PCB footprint in space-constrained designs
- Excellent line regulation of 0.033 %/V ensures stable output under varying input conditions
Applications
The LT1521CMS8#PBF is well-suited for battery-powered portable devices where low dropout voltage maximizes usable battery life. It is commonly used in industrial instrumentation, handheld test equipment, and embedded system power supplies requiring a precise, adjustable regulated voltage. Its compact MSOP package also makes it ideal for space-constrained PCB designs in consumer electronics and communication modules.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.75V |
| Dropout Voltage1-Nom | 0.5V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Line Regulation-Max (%/V) | 0.0331 |
| Load Regulation-Max(%) | 1.4% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 20V |
| Output Voltage1-Min | 3.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LT1521CMS8#PBF:
Regulator, 3.8V Min, 20V Max, 0.75V Dropout, BIPolar, PDSO8
Frequently Asked Questions
What is the maximum output current the LT1521CMS8#PBF can supply, and what dropout voltage should designers expect at full load?
The LT1521CMS8#PBF delivers up to 300 mA of output current. At full load, the typical dropout voltage is 0.5 V and the maximum is 0.75 V, enabling efficient regulation even when the input-to-output differential is small.
For a battery-powered sensor node running from a Li-ion cell, how suitable is the LT1521CMS8#PBF as a power regulator?
The LT1521CMS8#PBF handles input voltages up to 20 V and delivers 300 mA with a dropout of only 0.5 V typical, making it suitable for single-cell Li-ion applications. Its adjustable output and low quiescent current help extend battery runtime in sensor nodes.
How does the LT1521CMS8#PBF achieve its lead-free compliance, and which package does it use?
The #PBF suffix indicates RoHS-compliant, lead-free construction using a JESD-609 e3 process. The device is housed in an 8-pin MSOP package (JESD-30 code S-PDSO-G8), occupying minimal PCB area while supporting 300 mA regulated output.
What load and line regulation specifications make the LT1521CMS8#PBF appropriate for precision analog circuits?
With maximum line regulation of 0.033 %/V and maximum load regulation of 1.4 %, the LT1521CMS8#PBF maintains a stable output voltage across varying input and load conditions, making it suitable for precision analog front-ends, data converters, and sensor bias supplies.
Related Guides
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
Why Buy from FindMyChip
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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $30.0000 | $30.00 |
| 9+ | $28.5000 | $256.50 |
| 19+ | $4.1400 | $78.66 |
| 250+ | $3.5061 | $876.52 |
| 500+ | $3.3875 | $1693.75 |
| 1000+ | $3.1200 | $3120.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”