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Product Detailed Parameters
- Description：IC REG BST FLYBCK ADJ 1.5A 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, Flyback, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：35V (Switch)
- Current - Output：1.5A (Switch)
- 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) Exposed Pad
- Supplier Device Package：8-MSOP-EP
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Overview
The LT1961EMS8E#TRPBF is a monolithic step-up switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 25 V and delivers up to 1.5 A output current. The device integrates a 1.25 MHz switching frequency, enabling the use of small external components. It features adjustable output voltage capability and includes internal soft-start functionality to limit inrush current. The component is housed in an 8-lead MSOP package with an exposed pad for thermal management.
Feature Summary
- Integrates a high-efficiency power switch capable of delivering 1.5 A continuous output current
- Features fixed 1.25 MHz switching frequency to minimize passive component size
- Includes internal soft-start circuitry to control inrush current during startup
- Supports adjustable output voltage configuration via external resistor network
Applications
- Battery-powered portable equipment requiring efficient voltage boosting
- Industrial systems utilizing single-cell or multi-cell battery inputs
- Automotive electronics operating within specified voltage ranges
- General-purpose DC-DC conversion in space-constrained designs
Procurement Notes
Verify the specific suffix #TRPBF confirms tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the MSOP-EP package footprint matches the design layout requirements. Cross-reference the datasheet revision date to ensure compatibility with latest electrical specifications.
Selection Notes
Select this component when a compact solution is required for stepping up low input voltages to higher levels. The 1.25 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Verify that the load current does not exceed the 1.5 A limit under all operating conditions. Consider thermal performance due to the exposed pad requirement for adequate heat dissipation.
Part Context
This part belongs to the LT1961 series of step-up regulators from Analog Devices. It shares the core architecture with other variants in the family but differs in packaging and reel configuration. The MSOP-EP package provides a balance between pin count and thermal performance suitable for moderate power applications.
Replacement Considerations
LT1961IMS8E#PBF is a tube-packaged equivalent offering identical electrical characteristics. LT1961EMS8EPBF represents the same functional device with alternative packaging notation. Verify pinout compatibility before substituting any variant.
