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Product Detailed Parameters
- Description：IC REG CTRLR BST/FWRD CONV 16DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, Forward Converter
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：9V ~ 60V
- Frequency - Switching：-
- Duty Cycle (Max)：90%
- Synchronous Rectifier：No
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Soft Start
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：16-DIP (0.300", 7.62mm)
- Supplier Device Package：16-PDIP
- Grade：-
- Qualification：-
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Overview
The LT1680IN#PBF is a monolithic high-power DC/DC step-up controller designed for boost and forward converter applications. It features an input voltage range up to 60V and operates at a switching frequency of 200 kHz. The device draws a quiescent current of 150 uA and supports a minimum operating temperature of -40°C. Packaged in a 16-DIP format, it drives an N-channel MOSFET switch with a gate drive output capable of handling up to 10,000pF gate capacitance. The component functions as a current mode switching power supply controller.
Feature Summary
- Supports boost and forward converter topologies
- High current gate drive output capability
- Monolithic construction for efficient operation
Applications
- DC/DC step-up converter designs
- Forward converter applications
- N-channel MOSFET switch driving circuits
Procurement Notes
Verify the specific ordering suffix #PBF to confirm lead-free compliance and package type. Ensure the supplier provides the official Analog Devices datasheet for the LT1680 series. Confirm that the received component matches the 16-DIP physical package dimensions. Check for any manufacturer-specific marking codes on the top surface. Validate the part number against the distributor's catalog to avoid counterfeit or obsolete stock.
Selection Notes
Select this controller when designing boost converters requiring input voltages up to 60V. Consider the 200 kHz switching frequency for balancing efficiency and component size. Evaluate the 150 uA quiescent current for low-power standby requirements. Ensure the load application fits within the current mode control architecture. Verify compatibility with N-channel MOSFET switches for the gate drive stage.
Part Context
The LT1680 belongs to Analog Devices' family of high-power switching controllers. It is specifically engineered for applications demanding robust performance in boost and forward topologies. The component integrates essential control logic into a single monolithic chip. Its design focuses on simplifying the implementation of high-efficiency power supplies.
Replacement Considerations
Consult Analog Devices documentation for direct pin-compatible alternatives within the same product line. Verify electrical specifications such as input voltage limits and switching frequencies before substitution. Ensure thermal characteristics match the original design constraints.
