LTC3621HMS8E-5#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC3621HMS8E-5#PBF is a step-down DC-DC switching regulator with 2.7 V to 17 V input range, fixed 5 V output at 1 A, in an automotive-grade 8-pin MSOP EP package with current-mode control and pulse-skip mode for efficient low-power operation.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3621HMS8E-5#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2200(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 LTC3621HMS8E-5#PBF?
- 2.7 V to 17 V input range covering automotive battery, 12 V bus, and Li-Ion battery powered systems
- Fixed 5 V output at 1 A with current-mode control for fast transient response in automotive sensor rails
- Pulse-skip mode for high efficiency at light loads, extending battery life in always-on automotive subsystems
- Compact 8-pin MSOP EP package with exposed pad for improved thermal dissipation in tight PCB layouts
What is LTC3621HMS8E-5#PBF used for?
The LTC3621HMS8E-5#PBF is designed for automotive ECU subsystems, industrial sensor nodes, and portable instruments that need a regulated 5 V at 1 A from a wide 2.7 V to 17 V input bus. Its pulse-skip mode control maintains high efficiency at light loads below 100 mA, making it well-suited for always-on keep-alive circuits in vehicle electronics. The automotive-grade package rating and wide input range allow direct connection to a 12 V vehicle battery with standard fly-back transient protection, powering microcontrollers, CAN transceivers, and sensor front-ends without a separate LDO stage.
What are the specifications of LTC3621HMS8E-5#PBF?
| 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 | 5.075V |
| Output Voltage-Min | 4.925V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| 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 |
| Country of Origin | Malaysia |
Where can I find the LTC3621HMS8E-5#PBF datasheet?
LTC3621HMS8E-5#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3621HMS8E-5#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range and output specification of the LTC3621HMS8E-5#PBF?
The LTC3621HMS8E-5#PBF accepts an input voltage from 2.7 V to 17 V and provides a fixed 5 V regulated output at up to 1 A continuous current. This wide 2.7 V to 17 V input range accommodates automotive 12 V battery supplies, stepped-down bus rails, and Li-Ion battery stacks while delivering a stable 5 V rail for microcontrollers, CAN transceivers, and other 5 V peripherals.
How does the pulse-skip mode of the LTC3621HMS8E-5#PBF benefit battery-powered and automotive always-on applications?
In pulse-skip mode, the LTC3621HMS8E-5#PBF reduces switching frequency at light loads, cutting switching losses and maintaining high efficiency when current demand drops below approximately 10 mA to 50 mA. This directly extends battery life in automotive keep-alive circuits and IoT sensor nodes that spend most of their time in sleep mode drawing under 1 mA from the 5 V rail, compared to forced-PWM regulators that maintain full switching frequency regardless of load.
What control topology does the LTC3621HMS8E-5#PBF use and why does it matter for transient response?
The LTC3621HMS8E-5#PBF uses current-mode control, which provides an inherent inner current feedback loop that improves line and load transient response compared to voltage-mode converters. Current-mode control reduces output voltage deviation during sudden load steps of up to 1 A on the 5 V rail, and it simplifies loop compensation design by achieving stability with smaller output capacitor values, typically 10 µF to 22 µF in this package configuration.
In which automotive sensor or ECU designs is the LTC3621HMS8E-5#PBF a preferred step-down regulator choice?
The LTC3621HMS8E-5#PBF is preferred in automotive ECU power trees that need to step a 12 V vehicle battery down to a clean 5 V rail at 1 A for microcontrollers, CAN or LIN transceivers, and MEMS sensors. Its 17 V maximum input handles load-dump transients after standard TVS clamping, while the MSOP EP 8-pin package fits within the tight board area of body control modules, door node ECUs, and ADAS sensor power supplies where a 1 A step-down rail in under 10 mm2 PCB footprint is required.
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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+ | $5.5900 | $106.21 |
| 100+ | $5.0126 | $501.26 |
| 250+ | $4.5875 | $1146.88 |
| 1000+ | $4.2200 | $4220.00 |
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