LT3663IMS8E#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT3663IMS8E#PBF is an automotive-grade current-mode step-down DC-DC converter accepting 7.5 V to 36 V input and regulating to 0.8 V output at up to 1.2 A, housed in a compact 8-pin MSOP EP package.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT3663IMS8E#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2200(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 7.5 V to 36 V wide input range covering automotive 12 V and 24 V rail variations
- 1.2 A output current with 0.8 V minimum output voltage for low-core-voltage processor rails
- Constant-frequency current-mode control for predictable EMI spectrum and easy filtering
- Automotive-grade I-temperature rating for reliable operation from -40°C to +125°C
- 8-pin MSOP EP package with exposed thermal pad enabling high power density in small footprints
Applications
The LT3663IMS8E#PBF is designed for automotive infotainment, ADAS sensor modules, and industrial equipment requiring a robust step-down regulator on 12 V or 24 V rails with precise low-voltage output. Its constant-frequency operation simplifies EMI compliance in vehicle and industrial environments where conducted interference limits are strict. The 1.2 A output capability and 0.8 V minimum output serve modern low-power FPGAs, DSPs, and microcontrollers in space-constrained PCB designs with operating temperatures up to 125°C.
Specifications
| 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 |
| 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 | 1650kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| 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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does LT3663IMS8E#PBF support and which automotive power rails does it cover?
The LT3663IMS8E#PBF accepts input voltages from 7.5 V to 36 V, covering standard 12 V automotive batteries, 24 V truck electrical systems, and transient spikes on ISO 7637 load-dump events up to 35 V. This wide range allows a single PCB design to operate across passenger car, commercial vehicle, and industrial 24 V DC bus environments without redesigning the power stage.
What is the minimum output voltage of LT3663IMS8E#PBF and which processor cores does it support?
The LT3663IMS8E#PBF regulates output voltage down to 0.8 V at up to 1.2 A output current. This 0.8 V floor supports modern ARM Cortex-M cores, FPGA I/O banks, and DSP cores requiring sub-1 V supply rails. For example, a 1.0 V Cortex-A core drawing 800 mA is comfortably within the regulator's 1.2 A maximum output rating from a 12 V automotive rail.
How does constant-frequency operation in LT3663IMS8E#PBF simplify EMI filter design?
Constant-frequency current-mode control in the LT3663IMS8E#PBF produces a predictable switching frequency, concentrating EMI energy at known harmonic frequencies rather than spreading it across a wide spectrum. This allows the input EMI filter to be designed with a single LC stage targeting those discrete frequencies, reducing filter component count by 2 to 3 parts versus spread-spectrum architectures in automotive CISPR 25 compliance designs.
For an automotive application at -40°C, does LT3663IMS8E#PBF guarantee stable startup?
Yes, the LT3663IMS8E#PBF carries an I-grade automotive temperature rating from -40°C to +125°C, ensuring stable startup and regulation across the full automotive cold-soak range. At -40°C with a 12 V input, the regulator transitions from soft-start to steady-state regulation within 1 ms to 2 ms, well within the boot sequence requirements of automotive microcontroller and ADAS sensor SoC power-up specifications.
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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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