ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
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：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Supplier Device Package：DDPAK-7
Download product information
Overview
The LT1506CR#PBF is a monolithic synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 15V and delivers up to 4.5A of output current at a fixed switching frequency of 500kHz. The device integrates a 4.5A power switch, oscillator, control logic, and error amplifier within an 8-pin DDPAK package (7+Tab). It functions as a direct replacement for the LT1374 but is optimized for lower input voltage applications.
Feature Summary
- Synchronous buck topology providing high efficiency through integrated low-resistance power switches
- Fixed 500kHz switching frequency allows for the use of small external inductors and capacitors
- Internal 4.5A switch capability supports high-current loads without external pass transistors
- Optimized for lower input voltage ranges compared to previous generation regulators
Applications
- Point-of-load regulation for microprocessors and DSPs
- Battery-powered equipment requiring efficient DC-DC conversion
- Industrial control systems utilizing 5V or 12V bus architectures
- Telecommunications infrastructure power distribution
Procurement Notes
Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the CR suffix corresponds to the commercial temperature grade (-40°C to +85°C) rather than industrial or military grades. Ensure the DDPAK-7 footprint matches the target PCB design, paying attention to the exposed thermal pad requirements for adequate heat dissipation during high-current operation.
Selection Notes
Select this component when input voltages fall between 4V and 15V, distinguishing it from the LT1374 which requires higher inputs. The 500kHz frequency offers a balance between component size and switching losses. Consider the 4.5A current limit for peak load demands. Verify that the required output voltage can be set via external resistors if using the adjustable variant, though fixed versions exist.
Part Context
The LT1506 series belongs to Analog Devices' Linear Technology portfolio of switching regulators. It serves as a functional equivalent to the LT1374 but addresses applications with reduced input voltage headroom. The device represents a mature technology in the synchronous buck converter category, widely used in established designs requiring robust performance and simple implementation.
Replacement Considerations
LT1374: Functionally identical but designed for higher input voltages (5.5V to 25V). LT1506IR#PBF: Industrial temperature grade version of the same electrical specification.
