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Product Detailed Parameters
- Description：IC REG CTRLR FLYBACK 16SSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Flyback
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.1V ~ 20V
- Frequency - Switching：90kHz ~ 115kHz
- Duty Cycle (Max)：90%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Soft Start
- 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 LT1737IGN#PBF is a high-power isolated flyback controller from Analog Devices, designed for DC-DC conversion applications. It operates within an input voltage range of 4.5V to 20V and supports switching frequencies up to 125kHz. The device features a maximum duty cycle of 90% and is housed in a 16-lead SSOP package. It includes control features such as enable and soft start capabilities. The component is rated for operation across a temperature range of -40°C to 125°C, ensuring reliability in demanding environments.
Feature Summary
- Supports high-power isolated flyback topology for efficient energy transfer
- Integrated enable and soft start functions for controlled power-up sequences
- Wide operating temperature range suitable for industrial applications
Applications
- High-power isolated flyback power supplies
- Industrial power management systems
- DC-DC conversion modules requiring isolation
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm package type matches SSOP-16 requirements for PCB layout. Ensure supplier documentation aligns with Analog Devices specifications for the LT1737 series. Check for any recent product change notifications that may affect pinout or electrical characteristics before finalizing procurement.
Selection Notes
Select this component for designs requiring a dedicated flyback controller with integrated soft start. Consider the 90% maximum duty cycle limit when designing transformer turns ratios. Evaluate thermal performance given the 125°C upper operating limit. Compare against other controllers if synchronous rectification is required, as this model does not support it natively.
Part Context
The LT1737IGN#PBF belongs to the LT1737 family of high-power isolated flyback controllers. It complements other Linear Technology (now Analog Devices) power management ICs by providing robust control for off-line and isolated DC-DC converters. The part is often used in conjunction with external MOSFETs and transformers to build complete power supply solutions.
Replacement Considerations
LT1737IS#PBF is a documented alternative variant within the same family, offering similar functionality in a SOIC-16 package. Verify pin compatibility and thermal characteristics when substituting.
