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Product Detailed Parameters
- Description：IC REG BOOST SEPIC ADJ DL 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive and Negative (Dual Rail)
- Topology：Boost, SEPIC
- Output Type：Adjustable
- Number of Outputs：2
- Voltage - Input (Min)：1.2V
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：±1.23V
- Voltage - Output (Max)：±34V
- Current - Output：250mA (Switch)
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 70°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
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Overview
The LT1945EMS#TRPBF is a dual-output switching regulator IC manufactured by Analog Devices Inc. It operates with an input voltage range of 1.2V to 15V and provides two adjustable outputs ranging from ±1.23V to 36V/-34V. The device supports non-inverting, inverting, step-up, and step-down topologies within a single package. It features a typical quiescent current of 20µA and line regulation of 0.1%/V. The component is housed in a 10-pin MSOP surface-mount package and is rated for an operating temperature range of -40°C to 85°C.
Feature Summary
- Dual-output architecture providing simultaneous positive and negative voltage rails
- Supports multiple converter topologies including boost, SEPIC, buck, and inverting configurations
- Low quiescent current consumption for improved efficiency in standby modes
Applications
- Portable equipment requiring dual polarity power supplies
- Battery-powered systems needing flexible voltage conversion
- Industrial control circuits utilizing isolated or split rail requirements
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm RoHS compliance status as indicated in official documentation. Ensure the 10-MSOP package dimensions match your PCB footprint requirements. Check for any recent Product Change Notifications (PCN) regarding marking or material updates before finalizing procurement.
Selection Notes
Select this component when dual output generation from a single low-voltage source is required. Consider the 1.2V minimum input voltage constraint against your system's battery discharge curve. Evaluate the 250mA switch current limit against peak load demands. Verify that the 10-MSOP thermal performance meets your application's dissipation needs without additional heatsinking.
Part Context
This part belongs to the LT1945 family of dual-output DC/DC converters. It integrates two switching regulators into one compact solution, reducing board space compared to using separate discrete controllers. The series is designed for applications where power density and input voltage flexibility are critical design constraints.
Replacement Considerations
LT1945IMS#TRPBF offers identical electrical specifications but utilizes an MSOP-10 package variant. Cross-reference pinouts carefully as package variations may exist within the same functional family.
