LT8609AEMSE#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT8609AEMSE#PBF is a synchronous step-down DC-DC regulator with 3V to 42V input range and 2A output current. Switching frequency reaches 2.2 MHz with adjustable output from 800mV to 41.5V. Available in compact MSOP-10 package for industrial and automotive power supplies.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LT8609AEMSE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.3077(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT8609AEMSE#PBF?
- Wide 3 V to 42 V input range with 2 A continuous output current in a compact MSOP-10 footprint
- 2.2 MHz switching frequency enabling small external inductors and capacitors to minimize solution size
- Current-mode PWM control with adjustable 800 mV to 41.5 V output covering a broad range of rail voltages
What is LT8609AEMSE#PBF used for?
The LT8609AEMSE#PBF is designed for automotive, industrial, and telecom power supplies that must regulate from high-voltage inputs down to sub-1V logic rails. Its 3V to 42V input range handles 12V, 24V, and 48V bus voltages while delivering up to 2A, making it suitable for distributed power architectures in factory automation and vehicle body electronics. The 2.2 MHz switching frequency reduces EMI filter size and allows use of low-profile inductors in space-constrained PCB designs.
What are the specifications of LT8609AEMSE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1664 |
| YTEOL | 9 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 3V |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 42V |
| Output Voltage-Min | 0.782V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2075kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| 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 | Thailand |
Where can I find the LT8609AEMSE#PBF datasheet?
LT8609AEMSE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT8609AEMSE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT8609AEMSE#PBF support, and what output current can it supply?
The LT8609AEMSE#PBF accepts an input voltage from 3 V to 42 V and delivers up to 2 A continuous output current. The adjustable output spans 800 mV to 41.5 V, allowing a single device to serve 1.8 V, 3.3 V, and 5 V rails from a 12 V or 24 V bus in industrial power designs.
Why does the 2.2 MHz switching frequency of the LT8609AEMSE matter for PCB layout?
At 2.2 MHz the required inductance is typically 2.2 µH to 4.7 µH versus 10 µH to 47 µH at lower frequencies, shrinking inductor footprint and height. Smaller passive components reduce total solution area on the PCB and ease thermal management in dense multi-rail power supplies for automotive and IoT modules.
Which control architecture does the LT8609AEMSE use, and how does it affect transient response?
The device uses current-mode pulse-width modulation control, which provides inherent cycle-by-cycle current limiting and fast load transient response. A 1 A load step at a 3.3 V output typically shows recovery within a few microseconds, maintaining tight voltage regulation in dynamic loads such as FPGA core rails and DSP power supplies.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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.
More from Analog Devices
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.9632 | $3.96 |
| 53+ | $3.8165 | $202.27 |
| 68+ | $3.6893 | $250.87 |
| 91+ | $3.3077 | $301.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit