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Product Detailed Parameters
- Description：IC REG BOOST FLYBACK ADJ 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Boost, Flyback, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：100V
- Voltage - Output (Min/Fixed)：1.6V, -0.8V
- Voltage - Output (Max)：140V (Switch)
- Current - Output：500mA (Switch)
- Frequency - Switching：100kHz ~ 500kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad
- Supplier Device Package：16-MSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT8331IMSE#PBF is a current mode DC/DC converter manufactured by Analog Devices Inc., featuring an integrated 140V, 0.5A switch. It operates from a 4.5V to 100V input range and supports Boost, SEPIC, Flyback, and Inverting topologies via a unique single feedback pin architecture. The device delivers adjustable output voltages ranging from 1.6V to 140V or -0.8V for inverting configurations. It functions at a switching frequency of 500 kHz with a quiescent current of 5.5 uA and shutdown current of 840 uA. Rated for automotive applications under AEC-Q100 standards, it operates within a temperature range of -40°C to +125°C TJ in a 16-MSOP-EP package.
Feature Summary
- Integrates a high-voltage 140V, 0.5A power switch for robust performance
- Utilizes a unique single feedback pin architecture to support multiple converter topologies
- Features ultra-low operating quiescent current for enhanced energy efficiency
- Complies with AEC-Q100 automotive qualification standards for reliability
Applications
- Automotive electronics requiring wide input voltage ranges
- Industrial systems utilizing boost or inverting converter configurations
- Medical equipment needing isolated or negative rail generation
- Battery-powered devices requiring low standby power consumption
Procurement Notes
Verify the specific suffix #PBF indicates tube packaging when ordering through distributors. Confirm that the IMSE variant meets industrial temperature specifications compared to EMSE automotive grades. Ensure the 16-MSOP-EP package footprint matches the design layout. Cross-reference the latest datasheet revision for any pinout or electrical parameter updates before finalizing procurement documents.
Selection Notes
Select this component for applications requiring a wide 4.5V to 100V input range without external MOSFETs. Choose the IMSE grade for industrial environments where AEC-Q100 compliance is not strictly mandated but high reliability is desired. Consider the single feedback pin simplicity for reducing external component count in boost, SEPIC, flyback, or inverting designs. Evaluate thermal dissipation requirements given the 125°C junction temperature rating and surface mount package constraints.
Part Context
This part belongs to the LT8331 series of low IQ multi-topology converters from Analog Devices. It shares architectural similarities with other parts in the family but differs in temperature grade and packaging options. The IMSE designation specifically identifies the industrial temperature range version housed in a 16-lead MSOP package with exposed pad, distinguishing it from automotive or tape-and-reel variants.
Replacement Considerations
LT8331EMSE#PBF serves as a direct alternative with identical electrical characteristics but automotive qualification. LT8331IMSE#TRPBF offers the same functionality in tape-and-reel packaging for automated assembly. Verify package compatibility and temperature ratings when substituting.
