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Product Detailed Parameters
- Description：IC REG PUSH-PULL ADJ 1A 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Push-Pull
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：1A
- Frequency - Switching：50kHz ~ 1MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
- Grade：-
- Qualification：-
Download product information
Overview
The LT3999IMSE#PBF is a monolithic, high-voltage, high-frequency DC/DC transformer driver designed to provide isolated power in a small solution footprint. It operates with a push-pull topology and features duty cycle control for input voltage compensation, enabling wide input ranges and low dropout regulator losses. The device delivers up to 1A output current with adjustable output voltage. It supports switching frequencies from 50kHz to 1MHz and functions within an input voltage range of 2.7V to 36V. The component is housed in a 10-MSOP package with an exposed pad for thermal management.
Feature Summary
- Integrates duty cycle control to compensate for input voltage variations, ensuring stable operation across wide input ranges.
- Provides a low-noise isolated power solution suitable for noise-sensitive applications through inherent push-pull topology.
- Enables compact designs by requiring minimal external passive components while delivering high-frequency performance.
Applications
- Medical instruments requiring isolated, low-noise power supplies
- Industrial sensing and control systems needing reliable isolation
- Data conversion equipment demanding clean power rails
- Wideband communications infrastructure
Procurement Notes
Verify the specific suffix #PBF confirms lead-free compliance and RoHS status against the manufacturer's latest documentation. Confirm the MSOP-10 package variant matches the thermal pad requirements for your PCB layout. Ensure the operating temperature range aligns with your system's environmental specifications before finalizing procurement.
Selection Notes
Select this component when isolation and low noise are critical alongside space constraints. The duty cycle control feature is essential if the input voltage varies significantly. Consider the 1A current limit and 36V maximum input when designing the transformer and feedback network. Evaluate thermal performance due to the exposed pad requirement for optimal heat dissipation.
Part Context
The LT3999 belongs to Analog Devices' family of high-frequency DC/DC drivers. It complements other PMIC solutions by offering specialized isolated power generation capabilities. The IMSE designation indicates the industrial temperature grade and MSOP packaging. This part is distinct from non-isolated buck regulators like the LT3990 series.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult official Analog Devices documentation for any direct replacements or pin-compatible alternatives.
