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Product Detailed Parameters
- Description：IC REG BUCK ADJ 500MA 8DFN
- 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)：3V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：36V
- Current - Output：500mA
- Frequency - Switching：1.1MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LT3502IDC is a current mode PWM step-down DC/DC converter manufactured by Analog Devices Inc. It features an internal 500mA power switch and operates at switching frequencies of 750kHz or 2.2MHz. The device accepts input voltages ranging from 3V to 40V and provides adjustable output voltages between 0.8V and 36V. It is housed in an 8-lead 2mm x 2mm DFN package with an exposed pad, designed for space-constrained applications requiring efficient voltage regulation.
Feature Summary
- Integrates a 500mA power switch within a compact footprint
- Supports flexible switching frequency selection via external resistor
- Utilizes current mode PWM control architecture for stable regulation
Applications
- Portable electronic devices requiring efficient step-down conversion
- Battery-powered systems with wide input voltage ranges
- Space-limited industrial equipment power supplies
Procurement Notes
Verify the specific suffix (e.g., #PBF) and tape/reel configuration when ordering, as availability varies by packaging type. Confirm RoHS compliance status through official datasheets prior to integration. Ensure the selected variant matches the required operating temperature range for the target application environment.
Selection Notes
Select this component for designs prioritizing high efficiency and minimal board space. The internal switch eliminates the need for external power transistors. Consider the thermal performance of the DFN package and ensure adequate PCB copper area for heat dissipation under maximum load conditions.
Part Context
This part belongs to the LT3502 family of buck regulators from Analog Devices. It shares architectural similarities with other members like the LT3502A but may differ in electrical specifications or packaging options. The family targets applications needing reliable, compact power management solutions in small form factors.
Replacement Considerations
Compatible substitutes include LT3502EMS#PBF and LT3502EDC#TRMPBF. Verify pin compatibility and electrical parameters before substitution. Ensure the replacement part meets the same thermal and regulatory requirements.
