LTC3621EMS8E-3.3#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Name: LTC3621EMS8E-3.3#TRPBF
Brand: Analog Devices
SKU: LTC3621EMS8E-3.3#TRPBF
Availability: InStock

LTC3621EMS8E-3.3#TRPBF is a synchronous step-down DC-DC converter from Analog Devices with a fixed 3.3 V output, accepting 2.7 V to 17 V input and delivering up to 1 A output current. Current-mode control with pulse-skip operation maximises efficiency at light loads in automotive and industrial designs. Available on tape-and-reel with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

LTC3621EMS8E-3.3#TRPBFSmall Outline Packages

Quick Facts

Manufacturer: Analog Devices
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: LTC3621EMS8E-3.3#TRPBF Datasheet PDF
Category: Integrated Circuit
Price: From $3.5300(MOQ 1)
Temp Range: ?°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of LTC3621EMS8E-3.3#TRPBF?

Fixed 3.3 V synchronous step-down output from a wide 2.7 V to 17 V input range covers automotive 12 V battery and industrial 5 V rails
1 A continuous output current with current-mode control and pulse-skip mode for high efficiency across light and heavy loads
Automotive-grade 8-pin MSOP-EP package with exposed pad enables compact, thermally efficient PCB designs
Analog Devices LTC precision design delivers tight load and line regulation suitable for noise-sensitive analog and digital subsystems

What is LTC3621EMS8E-3.3#TRPBF used for?

The LTC3621EMS8E-3.3#TRPBF is designed for automotive infotainment, ADAS sensor modules, and telematics units that require a regulated 3.3 V rail from a 12 V vehicle battery. Its wide 2.7 V to 17 V input range also suits industrial field instruments, handheld test equipment, and embedded computing boards powered from unregulated 5 V or 12 V adapters. The pulse-skip control mode reduces quiescent current in battery-backed IoT nodes and portable instruments where standby power consumption directly impacts battery runtime.

What are the specifications of LTC3621EMS8E-3.3#TRPBF?

Pbfree Code	No
Manufacturer Package Code	05-08-1662
YTEOL	10
Analog IC - Other Type	SWITCHING REGULATOR
Control Mode	CURRENT-MODE
Control Technique	PULSE SKIP MODE
Input Voltage-Max	17V
Input Voltage-Min	2.7V
Input Voltage-Nom	12V
JESD-30 Code	S-PDSO-G8
JESD-609 Code	e3
Number of Functions	1
Output Current-Max	1A
Output Voltage-Max	3.35V
Output Voltage-Min	3.25V
Output Voltage-Nom	3.3V
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	TSSOP8,.19
Package Shape	SQUARE
Package Style	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel)	260
Surface Mount	YES
Switcher Configuration	BUCK
Switching Frequency-Max	1160kHz
Technology	CMOS
Temperature Grade	AUTOMOTIVE
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	0.65mm
Terminal Position	DUAL
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 LTC3621EMS8E-3.3#TRPBF datasheet?

LTC3621EMS8E-3.3#TRPBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LTC3621EMS8E-3.3#TRPBF?

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

Frequently Asked Questions

What input voltage range does the LTC3621EMS8E-3.3#TRPBF support, and is it suitable for a 12 V automotive battery supply?

The LTC3621EMS8E-3.3#TRPBF accepts an input voltage of 2.7 V to 17 V, which comfortably spans the 9 V to 16 V range seen on a 12 V automotive battery under cranking and load-dump conditions. This makes it a robust choice for automotive ECUs, infotainment systems, and telematics units that need a stable 3.3 V output from an unregulated vehicle bus.

How much output current can the LTC3621EMS8E-3.3#TRPBF deliver, and what control mode improves light-load efficiency?

The LTC3621EMS8E-3.3#TRPBF delivers up to 1 A continuous output current. Its current-mode control architecture combined with pulse-skip mode allows the converter to maintain high efficiency at loads below 100 mA, which is critical in battery-powered IoT nodes and always-on sensor modules where the dominant operating state is light load.

Which package does the LTC3621EMS8E-3.3#TRPBF use, and how does it aid thermal management in compact designs?

The LTC3621EMS8E-3.3#TRPBF is housed in an 8-pin MSOP package with an exposed thermal pad (EP). The exposed pad transfers heat directly to the PCB copper pour, allowing the IC to sustain 1 A output current without a heatsink even when operating from a 17 V input, reducing thermal derating in space-constrained automotive and industrial boards.

When is LTC3621EMS8E-3.3#TRPBF a better choice than a linear regulator for powering a 3.3 V microcontroller from a 12 V rail?

At 1 A from a 12 V input, a linear regulator would dissipate approximately 8.7 W as heat, requiring a large heatsink and increasing PCB area. The LTC3621EMS8E-3.3#TRPBF's synchronous switching topology achieves efficiencies above 85%, cutting power loss to under 1.5 W in the same scenario and eliminating the heatsink entirely, which is decisive in automotive and embedded designs with strict thermal budgets.

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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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AvailabilityIn Stock

Reference Price (USD)

From $3.5300

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$4.9200	$4.92
19+	$4.6800	$88.92
1000+	$3.5300	$3530.00

pcs

Unit price: $4.9200 · Total: $4.92

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

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

LTC3621EMS8E-3.3#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

What are the key features of LTC3621EMS8E-3.3#TRPBF?

What is LTC3621EMS8E-3.3#TRPBF used for?

What are the specifications of LTC3621EMS8E-3.3#TRPBF?

Compliance & Regulatory

Where can I find the LTC3621EMS8E-3.3#TRPBF datasheet?

What are equivalent replacements for LTC3621EMS8E-3.3#TRPBF?

Frequently Asked Questions

What input voltage range does the LTC3621EMS8E-3.3#TRPBF support, and is it suitable for a 12 V automotive battery supply?

How much output current can the LTC3621EMS8E-3.3#TRPBF deliver, and what control mode improves light-load efficiency?

Which package does the LTC3621EMS8E-3.3#TRPBF use, and how does it aid thermal management in compact designs?

When is LTC3621EMS8E-3.3#TRPBF a better choice than a linear regulator for powering a 3.3 V microcontroller from a 12 V rail?

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