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Product Detailed Parameters
- Description：IC REG CTRLR MULT TOP 16SSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Boost, Flyback, Forward Converter, SEPIC
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：3V ~ 25V
- Frequency - Switching：100kHz ~ 500kHz
- Duty Cycle (Max)：95%
- Synchronous Rectifier：No
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-SSOP
- Grade：-
- Qualification：-
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Overview
The LT1950IGN#TRPBF is a single-switch PWM controller with an auxiliary boost converter, manufactured by Analog Devices Inc. It supports forward, boost, flyback, and SEPIC topologies. The device drives an N-channel power MOSFET with minimal external components. Input voltage ranges from 5.5 V to 60 V. Switching frequency is adjustable between 100 kHz and 500 kHz. Output configuration is positive and isolation capable. Operating temperature range is -40°C to 125°C TJ. Package is 16-SSOP.
Feature Summary
- Single-switch PWM controller architecture
- Integrated auxiliary boost converter for gate drive
- Supports multiple converter topologies including forward, boost, flyback, and SEPIC
- Drives N-channel power MOSFETs
Applications
- Forward converter designs
- Boost converter applications
- Flyback power supplies
- SEPIC topology implementations
Procurement Notes
Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm package marking matches the 16-SSOP specification. Check date codes and lot numbers against current manufacturing records. Ensure storage conditions comply with moisture sensitivity level requirements prior to soldering. Validate that the specific suffix TRPBF corresponds to tape and reel packaging if required for automated assembly processes.
Selection Notes
Select this controller when designing isolated or non-isolated power supplies requiring flexible topology support. The integrated auxiliary boost simplifies gate drive requirements for high-side N-channel MOSFETs. Consider thermal management capabilities within the -40°C to 125°C junction temperature range. Evaluate external component count reduction benefits compared to discrete solutions. Ensure input voltage stays within the specified operational limits for stable regulation.
Part Context
The LT1950 belongs to Analog Devices' family of switching voltage regulators and controllers. It serves as a core control IC for various DC-DC conversion architectures. The IGN#TRPBF designation indicates a specific package and packaging variant within the broader LT1950 product line. This component falls under the PMIC category, specifically focusing on power management integrated circuits for efficient energy conversion.
Replacement Considerations
LT1950IGN#TR is listed as a direct substitute but is marked obsolete. Verify functional compatibility before substitution. No other official substitutes are documented in available public data.
