LT8609AHDDM-5#TRPBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
Analog Devices LT8609AHDDM-5#TRPBF is a 42 V input, 2 A continuous (3 A peak) synchronous buck regulator with a fixed 5 V output in a 10-pin DFN package. Uses current-mode PWM control for fast transient response and high efficiency across a 3 V to 42 V input range. Available from stock worldwide with fast shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LT8609AHDDM-5#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5900(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 LT8609AHDDM-5#TRPBF?
- 3 V to 42 V wide input range supports automotive, industrial, and telecom power rails including 12 V, 24 V, and 36 V bus voltages in a single compact design
- 2 A continuous and 3 A peak synchronous buck topology achieves up to 95% efficiency with integrated high-side and low-side MOSFETs, eliminating external switching transistors
- Fixed 5 V output with current-mode PWM control delivers fast transient response and inherent cycle-by-cycle current limiting for robust short-circuit protection in space-constrained 10-pin DFN designs
What is LT8609AHDDM-5#TRPBF used for?
The LT8609AHDDM-5#TRPBF is ideal for automotive ECU power supplies, industrial sensor nodes, and 24 V or 36 V bus-powered embedded systems requiring a regulated 5 V rail at up to 2 A from a wide-range input. Its high-voltage 42 V capability and compact DFN footprint also suit distributed power architectures in telecom equipment and robotics controllers where board space is at a premium.
What are the specifications of LT8609AHDDM-5#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1647 |
| YTEOL | 8.5 |
| 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-PQCC-N10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 5.11V |
| Output Voltage-Min | 4.89V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.12,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2075kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Small Outline No-lead |
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 LT8609AHDDM-5#TRPBF datasheet?
LT8609AHDDM-5#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT8609AHDDM-5#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does LT8609AHDDM-5#TRPBF support, and which industrial bus voltages does that cover?
The LT8609AHDDM-5#TRPBF operates from 3 V to 42 V input, directly supporting 12 V automotive, 24 V industrial Ethernet, and 36 V telecom bus voltages without additional voltage pre-regulation. The 42 V maximum input also tolerates load dump transients common in automotive environments, making it a single-component power solution for multi-rail systems.
How much output current can LT8609AHDDM-5#TRPBF deliver continuously versus at peak, and what limits the peak?
The LT8609AHDDM-5#TRPBF delivers 2 A continuously and up to 3 A peak output current. Peak current is limited by the internal cycle-by-cycle current limit circuit that monitors inductor current on each PWM cycle, protecting the integrated MOSFETs and external inductor from saturation during load transients while maintaining the regulated 5 V output.
For a compact automotive ECU board, how does the 10-pin DFN package of LT8609AHDDM-5#TRPBF reduce PCB area versus a TO-263 regulator?
The 10-pin DFN (3 mm x 3 mm footprint) of the LT8609AHDDM-5#TRPBF occupies approximately 9 mm² of PCB area compared to the 163 mm² footprint of a TO-263 package linear regulator, saving over 90% of board space. This compact synchronous buck solution also eliminates the heatsink required by a linear regulator dissipating up to 10 W at 2 A from a 12 V input.
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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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|---|---|---|
| 19+ | $6.0800 | $115.52 |
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