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Product Detailed Parameters
- Description：IC REG BUCK ADJ 4.5A DDPAK-7
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4V
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：2.42V
- Voltage - Output (Max)：13.95V
- Current - Output：4.5A
- Frequency - Switching：500kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Supplier Device Package：DDPAK-7
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Overview
The DC238A is an evaluation board manufactured by Analog Devices Inc., designed specifically for the LT1506 synchronous step-down switching regulator. This non-isolated DC/DC converter operates with an input voltage range of 4.5V to 15V and provides a fixed 3.3V output. The board supports a maximum output current of 4A at a switching frequency of 500kHz. It utilizes the LT1506 IC in a D2PAK package, offering a compact solution for evaluating buck converter performance under standard industrial conditions.
Feature Summary
- Provides a complete hardware platform for evaluating the LT1506 synchronous buck regulator topology
- Supports fixed 3.3V output configuration with integrated soft-start capabilities
- Includes necessary passive components and layout optimized for 500kHz switching operation
Applications
- Evaluation of low input voltage DC-DC conversion efficiency
- Testing of synchronous step-down regulator thermal performance
- Verification of 4.5A load transient response characteristics
Procurement Notes
Verify that the specific revision of the DC238A matches the LT1506 variant intended for testing. Confirm availability status as manufacturing transitions may affect stock levels. Ensure compatibility with standard laboratory measurement equipment for accurate parameter validation during development phases.
Selection Notes
Select this evaluation kit when designing systems requiring a 3.3V rail from inputs between 4.5V and 15V. It serves as a reference design for PCB layout and component selection. Engineers should verify thermal requirements for the D2PAK package under full 4A load conditions before finalizing the production schematic.
Part Context
The DC238A belongs to the family of evaluation modules for Linear Technology (now Analog Devices) power management ICs. It complements the LT1506, which is functionally similar to the LT1374 but optimized for lower input voltages. This board facilitates rapid prototyping and performance validation for engineers developing compact power supplies.
Replacement Considerations
No direct substitute evaluation boards are publicly confirmed for this specific LT1506 configuration. Alternative designs may require custom layout using the LT1959 or LT1374 datasheets as references, though these differ in input voltage optimization.
