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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.782V
- Voltage - Output (Max)：42V
- Current - Output：3A
- Frequency - Switching：200kHz ~ 2.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
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Overview
The LT8609EMSE#PBF is a synchronous step-down switching regulator from Analog Devices, housed in a 10-pin MSOP package. It supports an input voltage range of 3V to 42V and delivers up to 3A output current with adjustable output voltages from 0.8V to 41.5V. The device features a low quiescent current of 2.5µA and operates at switch frequencies between 200kHz and 2.2MHz. It functions within a temperature range of -40°C to +125°C.
Feature Summary
- Synchronous buck topology for high efficiency
- Ultra-low static current operation
- Wide input voltage capability
- Integrated soft-start functionality
Applications
- Automotive power systems
- Industrial point-of-load regulation
- General-purpose DC-DC conversion
- Battery-powered equipment
Procurement Notes
Verify the specific suffix against official documentation to confirm pinout and thermal pad configuration. Ensure compatibility with required input voltage ranges and load currents. Check for automotive qualification status if applicable to the target environment. Confirm availability through authorized channels due to potential supply constraints.
Selection Notes
Select this component for applications requiring wide input voltage tolerance and compact size. Consider the trade-off between switching frequency and external component size. Verify thermal performance under maximum load conditions. Ensure the selected package variant meets PCB layout requirements for heat dissipation.
Part Context
This part belongs to the LT8609 family of high-voltage synchronous buck regulators. It shares architectural similarities with other members like the LT8609A but may differ in specific electrical characteristics or EMI filtering options. The EMSE suffix indicates a specific MSOP package variant suitable for surface-mount assembly.
Replacement Considerations
LT8609AEDDM-5#PBF offers similar specifications with potential differences in EMI performance or package type. LT8609SIV#PBF provides an alternative LQFN package option. Verify functional equivalence and pin compatibility before substitution.
