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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：-40°C ~ 85°C (TA)
- 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 LT1945IMS#TRPBF is a dual-output switching regulator IC manufactured by Analog Devices Inc., housed in a 10-lead MSOP package. It operates with an input voltage range of 1.2V to 15V and provides adjustable outputs ranging from ±1.23V to 36V/-34V. The device supports non-inverting, inverting, step-up, and step-down topologies, delivering up to 250mA switch current. It features a typical quiescent current of 20µA and line regulation of 0.1%/V. Operating temperatures span from -40°C to 85°C.
Feature Summary
- Supports multiple converter topologies including boost, SEPIC, inverting, and non-inverting configurations within a single component.
- Generates dual independent output rails simultaneously for applications requiring positive and negative supply voltages.
- Integrates adjustable output control allowing flexible voltage setting across a wide dynamic range.
Applications
- Automotive electronic systems requiring robust power conversion
- Industrial equipment needing dual polarity power supplies
- Portable devices utilizing single-cell battery inputs
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm RoHS compliance status and SVHC declarations against current regulatory requirements. Ensure the 10-MSOP footprint matches your PCB layout constraints. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity and revision history before procurement.
Selection Notes
Select this component when designing circuits that require simultaneous positive and negative voltage generation from a low-voltage source. Consider the 250mA current limit and thermal performance in the MSOP package for load requirements. Evaluate the 1.2V minimum input voltage against your system's lowest operating condition. Verify that the required output voltage ranges fall within the specified ±1.23V to 36V limits.
Part Context
This part belongs to the LT1945 family of dual-output DC/DC converters designed for space-constrained applications. It integrates high-side and low-side switches to eliminate external diode requirements. The MSOP package offers a compact solution compared to larger SOIC options while maintaining similar electrical characteristics for portable and automotive designs.
Replacement Considerations
LT1945EMS#PBF is a pin-compatible leaded alternative in MSOP format. LT1945IMS#TRPBF represents the same core device in tape-and-reel packaging for automated assembly. Verify package dimensions and thermal pad specifications when substituting between reel and tube variants.
