LTC3621EMS8E#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC3621EMS8E#PBF is a 1A synchronous step-down (buck) switching regulator with 2.7V to 17V input range and adjustable output starting at 0.6V minimum. It uses current-mode control with pulse-skip mode for high efficiency at light loads in an 8-pin MSOP exposed-pad package. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LTC3621EMS8E#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.5300(MOQ 19)
- 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#PBF?
- 1A output current with 2.7V to 17V input range supporting a wide variety of point-of-load power supply designs from 3.3V to 12V rails
- Pulse-skip mode (PSM) light-load operation dramatically reduces quiescent current, extending battery life in portable and IoT applications
- Current-mode control with adjustable output voltage down to 0.6V enables precise regulation for low-voltage FPGA, DSP, and microprocessor core supplies
What is LTC3621EMS8E#PBF used for?
The LTC3621EMS8E#PBF is ideal for point-of-load power conversion in battery-powered portable devices, IoT nodes, and industrial sensor modules requiring efficient 1A step-down regulation from a 2.7V to 17V input. Its pulse-skip mode minimizes quiescent current draw, extending battery runtime in always-on sensor and wireless communication applications. The 8-pin MSOP exposed-pad package suits compact PCB designs in wearables, data acquisition modules, and embedded computing boards.
What are the specifications of LTC3621EMS8E#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 | 17V |
| Output Voltage-Min | 0.6V |
| 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 |
| 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 |
Where can I find the LTC3621EMS8E#PBF datasheet?
LTC3621EMS8E#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC3621EMS8E#PBF?
Compatible alternatives and drop-in replacements for LTC3621EMS8E#PBF:
suggested
suggested
Frequently Asked Questions
What is the input voltage range of LTC3621EMS8E#PBF and how does it benefit multi-rail system designs?
The LTC3621EMS8E#PBF accepts input voltages from 2.7V minimum to 17V maximum, with a nominal 12V design point. This wide 2.7V–17V range allows a single part to serve as a point-of-load regulator fed from 5V USB, 12V adapter, or 9V battery rails, reducing the number of distinct regulator ICs needed across a product family.
How does pulse-skip mode in LTC3621EMS8E#PBF extend battery life in IoT applications?
In pulse-skip mode (PSM), LTC3621EMS8E#PBF reduces quiescent supply current to microamp levels at light loads by skipping switching cycles when the output capacitor holds sufficient charge. This dramatically improves efficiency below 10% of the 1A full load, enabling months-long battery life in IoT sensor nodes that spend most of their duty cycle in sleep states.
What minimum output voltage can LTC3621EMS8E#PBF regulate to for low-voltage processor core supplies?
The LTC3621EMS8E#PBF supports an adjustable output voltage down to 0.6V, set by an external resistor divider. This enables direct supply of sub-1V core voltages required by modern FPGAs, ARM Cortex-M microcontrollers, and DSP processors, delivering up to 1A output current with tight voltage regulation from a 2.7V to 17V input bus.
How does the exposed-pad MSOP package of LTC3621EMS8E#PBF affect thermal performance in a 1A buck regulator?
The exposed pad on the 8-pin MSOP package of LTC3621EMS8E#PBF provides a low thermal resistance path to the PCB ground plane, reducing junction temperature rise under continuous 1A output current operation. Connecting the exposed pad to a copper pour with multiple vias keeps the die below the 125°C junction temperature limit even at full load with a 17V input, maximizing reliability in compact designs.
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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+ | $4.6800 | $88.92 |
| 250+ | $3.9007 | $975.17 |
| 500+ | $3.8375 | $1918.75 |
| 1000+ | $3.5300 | $3530.00 |
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