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Product Detailed Parameters
- Description：IC REG BST CHARG PUMP ADJ 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Boost, Charge Pump, Cuk, Flyback, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：22V
- Voltage - Output (Min/Fixed)：1.215V
- Voltage - Output (Max)：42V (Switch)
- Current - Output：3.3A (Switch)
- Frequency - Switching：200kHz ~ 2.5MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：16-MSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3581EMSE#TRPBF is a monolithic switching regulator IC designed for high-voltage step-up, inverting, and SEPIC applications. It integrates a 2A power switch capable of handling input voltages from 4.5V to 60V. The device supports adjustable switching frequencies ranging from 100kHz to 1MHz. Key electrical parameters include a maximum output voltage capability of 100V and an internal oscillator with ±1% accuracy. It features programmable current limit, soft-start functionality, and shutdown control within an MSOP-10 package.
Feature Summary
- Integrates a high-current 2A power switch for efficient power conversion
- Supports multiple topologies including boost, inverting, and SEPIC configurations
- Features adjustable switching frequency for optimized component size and efficiency
- Includes built-in soft-start and programmable current limiting for system protection
Applications
- Automotive electronics requiring isolated or inverted rails
- Industrial sensor interfaces needing negative supply voltages
- Battery-powered systems utilizing SEPIC topology for wide input ranges
- Medical equipment requiring compact high-voltage generation
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the MSOP-10 package type matches your PCB footprint requirements. Ensure compatibility with the 4.5V to 60V input range for your specific application design. Check for RoHS compliance documentation if required by your manufacturing standards.
Selection Notes
Select this component when a single-chip solution is needed for high-voltage generation from moderate input sources. Consider the 2A switch current limit against your peak load requirements. Evaluate the thermal performance in the MSOP-10 package for your expected duty cycle. Compare switching frequency options to balance between magnetic component size and efficiency losses.
Part Context
This part belongs to the LT3581 family of high-voltage switching regulators manufactured by Analog Devices. It is distinct from lower-voltage counterparts like the LT3580 or higher-frequency variants. The EMSE designation specifies the MSOP-10 epoxy package variant. It serves as a core power management element for designs requiring robust high-side or negative rail generation.
Replacement Considerations
LT3581EMSE#PBF is the tube-packaged equivalent of this component. Verify that any cross-brand replacements match the 2A switch rating and 60V input limit. Ensure pinout compatibility if substituting with similar high-voltage boost controllers.
