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Product Detailed Parameters
- Description：IC REG BCK SEPIC 1.8V 1.5A 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck, SEPIC
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Current - Output：1.5A
- Frequency - Switching：1.25MHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
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Overview
The LT1767EMS8-1.8#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc., featuring a fixed 1.8V output and a 1.5A internal switch. It operates with a 1.25MHz switching frequency and supports an input voltage range of 3V to 25V. The device utilizes current mode control for fast transient response and excellent loop stability. It is housed in an 8-MSOP package, supports Buck and SEPIC topologies, and functions within a junction temperature range of 0°C to 125°C.
Feature Summary
- Integrates a high-efficiency 1.5A power switch with complete control circuitry for high-frequency operation.
- Employs current mode control architecture to ensure rapid transient response and robust loop stability.
- Supports flexible topology configurations including standard step-down (Buck) and SEPIC applications.
Applications
- General-purpose DC-DC step-down conversion
- Dual-output SEPIC converter designs
- Battery-powered systems requiring efficient voltage regulation
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging compliant with RoHS standards. Confirm the fixed 1.8V output variant matches design requirements, as other voltage options exist within the LT1767 family. Ensure the 8-MSOP package footprint aligns with PCB layout specifications before finalizing procurement orders.
Selection Notes
Select this component when a fixed 1.8V output is required alongside a 1.5A current capability. The 1.25MHz frequency allows for smaller passive components compared to lower-frequency regulators. Consider the 8-MSOP package size constraints and the 0°C to 125°C operating temperature range for thermal management planning in compact enclosures.
Part Context
This part belongs to the LT1767 series of monolithic step-down switching regulators from Analog Devices. The series is characterized by its integrated high-efficiency switch and current-mode control architecture. Variants differ primarily by fixed output voltage settings and packaging options, all sharing the core 1.25MHz switching performance and 1.5A load capability.
Replacement Considerations
Direct substitutes include other LT1767 variants with different fixed output voltages, such as LT1767EMS8-3.3 or LT1767EMS8-5, provided the system voltage requirement changes. Ensure pin compatibility and thermal characteristics remain consistent when swapping between these fixed-voltage versions within the same package.
