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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.6A DL 16DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：2
- Voltage - Input (Min)：3.6V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：23.25V
- Current - Output：1.6A
- Frequency - Switching：575kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFDFN Exposed Pad
- Supplier Device Package：16-DFN (5x4)
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Overview
The LT3506EDHD#PBF is a dual current mode PWM step-down DC/DC converter manufactured by Analog Devices Inc. It features two independent buck regulators with internal 1.6A power switches, operating from a 3.6V to 25V input range. The device utilizes a fixed 1.1MHz switching frequency and delivers adjustable output voltages down to 0.8V. Designed for DFN-16 surface-mount packaging, it supports an operating temperature range of -40°C to +85°C. Quiescent current is specified at 3.8mA, and the converters run in opposite phases to minimize input ripple.
Feature Summary
- Dual synchronous buck topology with integrated 1.6A power switches
- Anti-phase operation reduces input ripple current
- Fixed 1.1MHz switching frequency for compact external component size
- Adjustable output voltage capability starting from 0.8V
Applications
- Portable battery-powered equipment requiring dual rails
- Industrial control systems with distributed power architectures
- Embedded systems needing efficient step-down conversion from higher bus voltages
Procurement Notes
Verify the specific suffix EDHD corresponds to the DFN-16 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal management design accounts for the DFN-16 exposed pad requirements. Cross-reference the datasheet revision date to validate parameter accuracy against current production standards.
Selection Notes
Select this component when dual isolated or non-isolated buck outputs are required from a single high-voltage source. The anti-phase feature makes it suitable for noise-sensitive applications where input capacitor sizing must be minimized. Compare against single-channel alternatives if only one regulated rail is necessary to optimize board space and cost efficiency.
Part Context
This part belongs to the LT3506 family of dual current mode PWM step-down converters. It shares architectural similarities with other Analog Devices buck regulators but distinguishes itself through its specific dual-output configuration and 1.1MHz fixed frequency operation. The series is designed for applications demanding high efficiency and low component count in space-constrained environments.
Replacement Considerations
LT3506AEFE#PBF offers identical electrical performance in a TSSOP-16 package. LT3506IFE#PBF provides similar specifications within a different TSSOP footprint. Verify pinout compatibility and thermal dissipation characteristics before substituting packages.
