LT3663HMS8E-3.3#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LT3663HMS8E-3.3#PBF
Brand: Analog Devices
SKU: LT3663HMS8E-3.3#PBF
Availability: InStock

Analog Devices LT3663HMS8E-3.3#PBF is an automotive-grade current-mode step-down DC-DC regulator in an 8-pin MSOP with exposed pad, converting 7.5 V to 36 V input to a fixed 3.3 V output at 1.2 A, ideal for 12 V automotive and industrial power rails.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LT3663HMS8E-3.3#PBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: LT3663HMS8E-3.3#PBF Datasheet PDF
Category: Integrated Circuit
Price: From $4.5700(MOQ 19)
Temp Range: -40.0°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LT3663HMS8E-3.3#PBF?

Fixed 3.3 V output at up to 1.2 A from a wide 7.5 V to 36 V input range covering automotive 12 V and 24 V systems
Current-mode constant-frequency control provides excellent line and load transient rejection with simple loop compensation
Automotive-qualified 8-pin MSOP with exposed pad (S-PDSO-G8) for compact, thermally-efficient PCB integration
36 V absolute maximum input handles automotive load-dump transients without external clamp circuits
10-year YTEOL product lifecycle support for long-running automotive platform designs

What is LT3663HMS8E-3.3#PBF used for?

The LT3663HMS8E-3.3#PBF is designed for automotive body electronics, infotainment systems, and ADAS sensor modules that require a regulated 3.3 V supply from a 12 V or 24 V vehicle battery rail. Its wide 7.5 V to 36 V input range tolerates cold-crank voltage drops and load-dump spikes without external protection components, simplifying EMC compliance in harsh automotive environments. The device also suits industrial 24 V bus-powered instrumentation, PLCs, and distributed I/O modules where a compact, efficient 3.3 V converter is needed at up to 1.2 A output current.

What are the specifications of LT3663HMS8E-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
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 LT3663HMS8E-3.3#PBF datasheet?

LT3663HMS8E-3.3#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LT3663HMS8E-3.3#PBF?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What input voltage range does LT3663HMS8E-3.3#PBF support and why is this suited to automotive 12 V systems?

The device accepts 7.5 V to 36 V input, with a nominal 12 V design point. In automotive applications, the battery voltage spans from approximately 9 V during cold cranking to over 30 V during load-dump transients, so the 36 V maximum input ensures the regulator survives ISO 7637-2 transients without external TVS protection, reducing BOM cost and board space.

How does current-mode constant-frequency control benefit automotive power supply stability?

Current-mode control senses the inductor current cycle-by-cycle and uses it as a feed-forward signal in the control loop, providing inherent protection against inductor saturation and faster response to input voltage steps typical of automotive alternator switching. The constant-frequency architecture also simplifies EMI filter design since switching noise is concentrated at a predictable frequency, easing CISPR 25 compliance in automotive radio-frequency sensitive environments.

For an ADAS sensor board running from a 12 V automotive rail, what output current does LT3663HMS8E-3.3#PBF provide at 3.3 V?

The LT3663HMS8E-3.3#PBF delivers a fixed 3.3 V output at up to 1.2 A continuous current. At 12 V input converting to 3.3 V, the conversion efficiency of a well-designed switching regulator typically exceeds 85%, meaning approximately 1.2 W of power is dissipated in the 8-pin MSOP package — a level that the exposed thermal pad can handle without an external heatsink on a standard 2-layer PCB.

How long is LT3663HMS8E-3.3#PBF expected to remain available from Analog Devices?

The LT3663HMS8E-3.3#PBF carries a YTEOL rating of 10 years, reflecting Analog Devices' long-term production commitment. For automotive platform programs that span 5 to 7 years of vehicle production plus 10-year service support, this lifecycle horizon aligns well with typical OEM supply chain requirements and eliminates near-term redesign risk due to component obsolescence.

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AvailabilityIn Stock

Reference Price (USD)

From $4.5700

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
19+	$6.0600	$115.14
100+	$5.3560	$535.60
250+	$4.9625	$1240.62
1000+	$4.5700	$4570.00

pcs

Unit price: $6.0600 · Total: $115.14

In Stock · 24h Response · Worldwide Shipping

Direct Contact

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”

Rajesh Patel

Procurement Manager, VoltEdge Energy, India

LT3663HMS8E-3.3#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LT3663HMS8E-3.3#PBF?

What is LT3663HMS8E-3.3#PBF used for?

What are the specifications of LT3663HMS8E-3.3#PBF?

Compliance & Regulatory

Where can I find the LT3663HMS8E-3.3#PBF datasheet?

What are equivalent replacements for LT3663HMS8E-3.3#PBF?

Frequently Asked Questions

What input voltage range does LT3663HMS8E-3.3#PBF support and why is this suited to automotive 12 V systems?

How does current-mode constant-frequency control benefit automotive power supply stability?

For an ADAS sensor board running from a 12 V automotive rail, what output current does LT3663HMS8E-3.3#PBF provide at 3.3 V?

How long is LT3663HMS8E-3.3#PBF expected to remain available from Analog Devices?

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