LT3663EMS8E-3.3#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LT3663EMS8E-3.3#PBF is an automotive-grade DC-DC buck converter with fixed 3.3V output, 1.2A current capability, accepting 7.5V to 36V input, using constant-frequency current-mode control in an 8-pin MSOP package.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT3663EMS8E-3.3#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.6100(MOQ 19)
- Temp Range
- ?°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3663EMS8E-3.3#PBF?
- Fixed 3.3V output with 1.2A delivery from 7.5V–36V input covering automotive 12V and 24V bus systems
- Constant-frequency current-mode PWM control for predictable EMI filtering and stable transient response
- Automotive-grade qualification supporting -40°C to 125°C junction temperature for under-hood environments
- Compact 8-pin MSOP with exposed pad for improved thermal dissipation in tight automotive PCB layouts
What is LT3663EMS8E-3.3#PBF used for?
The LT3663EMS8E-3.3#PBF is designed for automotive body electronics, ADAS sensor supplies, and industrial equipment powered from 12V or 24V buses, where a reliable fixed 3.3V rail at up to 1.2A is required across the full automotive temperature range. Its 36V input tolerance handles load-dump transients and the wide battery-voltage swings encountered in start-stop and cold-crank automotive scenarios.
What are the specifications of LT3663EMS8E-3.3#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1662 |
| YTEOL | 10 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | CONSTANT FREQUENCY |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 7.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 2.5A |
| Output Voltage-Max | 3.366V |
| Output Voltage-Min | 3.234V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 3.2mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1100kHz |
| Technology | BIPOLAR |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) - annealed |
| 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 |
Where can I find the LT3663EMS8E-3.3#PBF datasheet?
LT3663EMS8E-3.3#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3663EMS8E-3.3#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT3663EMS8E-3.3#PBF support in automotive applications?
The LT3663EMS8E-3.3#PBF accepts 7.5 V to 36 V input, with a nominal 12 V operating point. The 36 V maximum rating provides margin above ISO 7637 load-dump pulses on 12 V automotive buses, protecting the converter and downstream 3.3 V logic from transient overvoltage events without external clamping components.
How much output current can the LT3663EMS8E-3.3#PBF deliver at its fixed 3.3V output?
The LT3663EMS8E-3.3#PBF delivers up to 1.2 A of continuous output current at a fixed 3.3 V, providing up to 3.96 W of regulated power. This is sufficient to supply microcontrollers, FPGAs, and sensor clusters in automotive body modules, infotainment units, and ADAS camera boards from the vehicle's 12 V battery.
Why is constant-frequency control important for the LT3663EMS8E-3.3#PBF in automotive EMC-sensitive designs?
Constant-frequency PWM switching keeps the switching spectrum at a fixed, predictable frequency, simplifying EMC filter design for CISPR 25 compliance. Designers can place a single LC filter tuned to the known switching frequency rather than broadband suppression needed for variable-frequency converters, reducing both filter component count and design risk in automotive environments.
What temperature range does the LT3663EMS8E-3.3#PBF cover, and is it suitable for under-hood use?
The LT3663EMS8E-3.3#PBF is rated for an automotive operating junction temperature range of -40°C to 125°C. This range qualifies it for under-hood and instrument cluster applications where ambient temperatures can reach 85°C to 105°C, combined with self-heating at 1.2 A load, staying within the 125°C junction limit with appropriate PCB copper pours.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $4.7800 | $90.82 |
| 250+ | $3.9768 | $994.20 |
| 500+ | $3.9250 | $1962.50 |
| 1000+ | $3.6100 | $3610.00 |
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