LT1506IR-3.3SYNC#TRPBF

$8.30

Description：IC REG BUCK 3.3V 4.5A DDPAK-7
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:840c92ae9f40 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 3.3V 4.5A DDPAK-7
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：15V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
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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LT1506IR-3.3SYNC#TRPBF

Overview

The LT1506IR-3.3SYNC#TRPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc., housed in an 8-pin DDPAK package with a thermal pad. It operates within a 4V to 15V input voltage range and provides a fixed 3.3V output at up to 4.5A. The device integrates a 4.5A power switch, oscillator, and control logic, functioning at a 500kHz switching frequency. It is optimized for lower input voltage applications compared to the LT1374.

Feature Summary

Synchronous rectification architecture for improved efficiency
Integrated 4.5A power switch and control circuitry
Optimized for low input voltage operation (4V to 15V)
Fixed 3.3V output voltage configuration

Applications

Point-of-load regulation for digital circuits
Battery-powered systems requiring efficient step-down conversion
Industrial control modules with 5V or 12V inputs
Communication equipment power supplies

Procurement Notes

Verify the exact suffix 'SYNC' indicates synchronous operation and '3.3' denotes the fixed output voltage. Confirm the '#TRPBF' suffix specifies tape-and-reel packaging with lead-free finish. Cross-reference the manufacturer datasheet to ensure compatibility with required thermal dissipation standards for the DDPAK package.

Selection Notes

Select this component when a fixed 3.3V output is required from a 4V to 15V source. It serves as a direct functional replacement for the LT1374 in applications where the input voltage does not exceed 15V. Ensure the load current remains within the 4.5A limit and verify PCB layout requirements for the synchronous design.

Part Context

This part belongs to the LT1506 family of monolithic buck mode switching regulators. It is functionally identical to the LT1374 but specifically optimized for lower input voltage ranges. The synchronous version improves efficiency over non-synchronous alternatives by replacing the catch diode with an active switch.