Model No: LT8609EMSE#TRPBF
Analog Devices Inc. LT8609EMSE#TRPBF
Manufacturer: Analog Devices Inc.
SEMICON NO.: LT8609EMSE#TRPBF
Package: 10-MSOP
Stock: In stock
Description: Buck Switching Regulator 42V 3A
SEMICON NO.: LT8609EMSE#TRPBF
Package: 10-MSOP
Stock: In stock
Description: Buck Switching Regulator 42V 3A
Quantity :
| Mfr | Analog Devices Inc. |
| Device Type | Synchronous Monolithic Step-Down (Buck) Switching Regulator |
| Input Voltage Range | 3.0 V to 42 V |
| Output Voltage Range | 0.782 V to 42 V |
| Output Current (Max) | 3 A (Continuous) |
| Number of Outputs | 1 |
| Topology | Buck (Step-Down) |
| Switching Frequency | 200 kHz to 2.2 MHz |
| Quiescent Current (IQ) | 1.7 µA (Non-switching) / 2.5 µA (Regulating, Burst Mode) |
| Operating Temperature | –40°C to +125°C |
| Package | 10-MSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The LT8609EMSE#TRPBF is a high-performance 42V 3A synchronous step-down Silent Switcher® regulator from Analog Devices (Linear Technology), housed in a compact MSOP-10E exposed-pad surface-mount package. It integrates high-efficiency synchronous power MOSFETs and adopts the patented Silent Switcher® low-EMI architecture with integrated bypass capacitors, supports a 3.0V to 42V wide input voltage range, and delivers up to 3A continuous output current with 200kHz to 2.2MHz adjustable switching frequency and only 2.5µA shutdown current, specified for the -40°C to +125°C extended industrial temperature range, making it an ultra-low-noise, high-efficiency step-down DC-DC converter solution for industrial control systems, automotive auxiliary electronics, and high-density embedded power supply designs.
Application Scenarios
This high-performance 42V 3A synchronous step-down regulator is optimized for high-efficiency low-noise power conversion tasks. Its primary applications include industrial control systems and harsh-environment field devices, where it delivers stable step-down power for industrial MCUs, sensors and communication modules facing frequent power-line surge interference; automotive non-safety auxiliary electronics and in-vehicle embedded computing modules, where it provides high-voltage-transient-tolerant step-down power; and high-performance embedded power supply modules and FPGA/DSP core rails, where it ensures high-efficiency low-noise power conversion for high-speed digital processing circuits.
This high-performance 42V 3A synchronous step-down regulator is optimized for high-efficiency low-noise power conversion tasks. Its primary applications include industrial control systems and harsh-environment field devices, where it delivers stable step-down power for industrial MCUs, sensors and communication modules facing frequent power-line surge interference; automotive non-safety auxiliary electronics and in-vehicle embedded computing modules, where it provides high-voltage-transient-tolerant step-down power; and high-performance embedded power supply modules and FPGA/DSP core rails, where it ensures high-efficiency low-noise power conversion for high-speed digital processing circuits.
Frequently Asked Questions (FAQ):
Q1: What is the maximum input voltage of the LT8609EMSE#TRPBF?
A: It supports 42V maximum input voltage, fully covering 12V, 24V and 36V industrial and automotive power rail requirements.
Q2: What is the core advantage of the Silent Switcher® architecture?
A: It drastically reduces radiated and conducted EMI without external shielding, simplifying power supply design and lowering overall system filter component cost.
Q1: What is the maximum input voltage of the LT8609EMSE#TRPBF?
A: It supports 42V maximum input voltage, fully covering 12V, 24V and 36V industrial and automotive power rail requirements.
Q2: What is the core advantage of the Silent Switcher® architecture?
A: It drastically reduces radiated and conducted EMI without external shielding, simplifying power supply design and lowering overall system filter component cost.
LT8609EMSE#TRPBF Procurement Notes
Verify full ADI original packaging with MSOP-10E standard tape-and-reel format, confirm RoHS-compliant lead-free construction with a valid date code within 2 years, and check that the moisture barrier bag carries an MSL 1 rating, so as to avoid counterfeit components that may cause unexpected efficiency degradation and EMI performance failure in high-frequency switching applications.
Compatible Alternative power supply IC List
● LT8609AEMSE#TRPBF: The enhanced A-grade variant of the same Silent Switcher® family, delivering further optimized EMI performance for ultra-strict EMC-compliant industrial system upgrades.
● TPS54360BDDAR: A Texas Instruments 60V 3.5A step-down converter, serving as a fully pin-compatible cross-vendor second-source alternative with comparable wide input voltage range performance.
● LT8640SIV#PBF: The higher-current 5A enhanced variant of the LT8609 family, delivering 5A maximum output current for higher-power industrial power supply upgrades.
● LT8609AEMSE#TRPBF: The enhanced A-grade variant of the same Silent Switcher® family, delivering further optimized EMI performance for ultra-strict EMC-compliant industrial system upgrades.
● TPS54360BDDAR: A Texas Instruments 60V 3.5A step-down converter, serving as a fully pin-compatible cross-vendor second-source alternative with comparable wide input voltage range performance.
● LT8640SIV#PBF: The higher-current 5A enhanced variant of the LT8609 family, delivering 5A maximum output current for higher-power industrial power supply upgrades.
