ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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
Download product information
Overview
The LT8609EMSE#TRPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It features a wide input voltage range from 3V to 42V and delivers up to 3A of continuous output current. The device operates with a fixed switching frequency of 2MHz, supporting adjustable frequencies between 200kHz and 2.2MHz. It utilizes spread spectrum modulation for low EMI performance and includes Burst Mode operation for ultra-low quiescent current consumption. The component is housed in a 10-lead MSOP package with an exposed pad.
Feature Summary
- Integrated high-speed synchronous buck topology with internal compensation
- Spread spectrum frequency modulation for reduced electromagnetic interference
- Burst Mode operation ensuring low noise and high efficiency at light loads
- Adjustable switching frequency with synchronization capability
Applications
- General purpose DC/DC conversion
- Low EMI power supply designs
- GSM transceiver power management
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing components. Confirm that the LT8609EMSE variant corresponds to the standard speed edge version rather than the A or S variants which offer slower edge speeds for improved EMI at the expense of efficiency. Ensure compatibility with the required thermal dissipation requirements for the MSOP-EP package.
Selection Notes
Select this component for applications requiring a balance between high efficiency and compact size within a 42V input system. The 2MHz fixed frequency allows for smaller passive components compared to lower frequency alternatives. Consider the LT8609A if stricter EMI limits are required, as it offers slower edge speeds. Verify that the 3A output current meets the peak load requirements of the target application.
Part Context
This part belongs to the LT8609 family of micro-power synchronous buck regulators. The EMSE designation identifies the 10-pin MSOP package variant. It is distinct from the LT8609A (slower edges) and LT8609S (Silent Switcher technology). The family is designed for automotive and industrial applications requiring high reliability and efficient power conversion.
Replacement Considerations
LT8609AEMSE#TRPBF: Offers slower edge speeds for improved EMI performance but may have slightly lower efficiency. LT8609IMSE#TRPBF: Identical electrical specifications and pinout; verify package availability and manufacturer lot codes.
