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Product Detailed Parameters
- Description：IC REG BCK BST ADJ 850MA DDPAK-5
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up/Step-Down
- Output Configuration：Positive or Negative, Isolation Capable
- Topology：Buck, Boost, Flyback, Forward Converter
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：75V
- Voltage - Output (Min/Fixed)：1.244V
- Voltage - Output (Max)：100V (Switch)
- Current - Output：850mA (Switch)
- Frequency - Switching：12kHz ~ 60kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Supplier Device Package：DDPAK-5
- Grade：-
- Qualification：-
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Overview
The LT1082IQ#PBF is a monolithic high-voltage switching voltage regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 3 V to 75 V and delivers a maximum output current of 1 A. The device supports multiple topologies including boost, buck, flyback, forward, and inverting configurations. It features an adjustable output voltage starting from 1.244 V with a maximum switch voltage rating of 100 V. The unit operates at a fixed switching frequency of 60 kHz and includes shutdown functionality. It is housed in a DDPAK-5 surface-mount package and functions across a temperature range of -40°C to +125°C.
Feature Summary
- Supports versatile power conversion topologies including boost, buck, flyback, forward, and inverting circuits.
- Integrates a high-voltage internal switch capable of handling up to 100 V.
- Includes a dedicated shutdown pin for power management control.
Applications
- Industrial power supply systems
- Battery-powered equipment requiring step-up or step-down regulation
- Distributed power architectures
Procurement Notes
Verify the specific suffix IQ#PBF against official Analog Devices documentation to confirm the industrial temperature grade (-40°C to +125°C) and the DDPAK-5 surface-mount package type. Ensure compatibility with the required thermal dissipation characteristics for the target application environment before finalizing procurement.
Selection Notes
Select this component when a single-chip solution is needed for high-input voltage applications up to 75 V. It is suitable for designs requiring flexible topology implementation without external discrete switches. Consider the 60 kHz switching frequency and thermal performance in the DDPAK-5 package when designing the PCB layout and heat sinking requirements.
Part Context
The LT1082 series represents a family of high-efficiency switching regulators designed for high-voltage environments. The LT1082IQ#PBF variant specifically targets industrial applications requiring robust performance over extended temperature ranges. It consolidates the controller, oscillator, and high-voltage power switch into a single integrated circuit to simplify design complexity.
Replacement Considerations
Consult official Analog Devices cross-reference guides for verified substitutes. Generic replacements may not match the 75 V input limit or the specific 60 kHz operating frequency.
