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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A 20LQFN
- Series：Silent Switcher®3
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：0V
- Voltage - Output (Max)：17.5V
- Current - Output：2A
- Frequency - Switching：300kHz ~ 6MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：20-TFQFN Exposed Pad
- Supplier Device Package：20-LQFN (4x3)
- Grade：-
- Qualification：-
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Overview
The LT8622SAV#TRPBF is a synchronous step-down switching regulator from Analog Devices, housed in a 20-lead TFQFN package with an exposed pad. It supports an input voltage range up to 18V and delivers a continuous output current of 2A. The device integrates a Silent Switcher architecture to minimize electromagnetic interference (EMI) without external filtering components. It features an adjustable switching frequency ranging from 300kHz to 6MHz, allowing for optimization of efficiency and component size. The regulator provides a single positive adjustable output voltage.
Feature Summary
- Integrates Silent Switcher technology to reduce radiated EMI emissions
- Synchronous rectification design for high conversion efficiency
- Adjustable switching frequency allows customization for specific application requirements
Applications
- Industrial control systems requiring low noise power supplies
- Battery-powered equipment needing efficient voltage regulation
- Embedded systems with strict EMI compliance standards
Procurement Notes
Verify the exact suffix and tape/reel specifications against the manufacturer's latest datasheet before ordering. Confirm that the 20-TFQFN package dimensions match your PCB footprint constraints. Ensure thermal management strategies account for the exposed pad requirement to maintain reliability under load.
Selection Notes
Select this component when an 18V input limit and 2A output capacity are sufficient for the design. Consider the adjustable frequency range if optimizing for specific inductor sizes or transient response needs. Evaluate the thermal performance of the TFQFN package relative to the expected ambient temperature and power dissipation levels.
Part Context
This part belongs to the LT8622 family of Silent Switcher regulators, designed for applications where space and EMI are critical constraints. It shares architectural similarities with other members of the series but is distinguished by its specific input voltage rating and output current capability within the 20-lead form factor.
Replacement Considerations
Check for direct pin-compatible alternatives within the same product family that may offer different thermal characteristics or updated packaging options. Verify that any substitute maintains the required 18V input and 2A output specifications while supporting the necessary switching frequency range.
