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Product Detailed Parameters
- Description：IC REG BUCK PROG 20A 24LQFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Programmable
- Number of Outputs：1
- Voltage - Input (Min)：2.9V
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：0.4V
- Voltage - Output (Max)：5.5V
- Current - Output：20A
- Frequency - Switching：400kHz ~ 4MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-PowerTFQFN
- Supplier Device Package：24-LQFN (3.5x4)
- Grade：-
- Qualification：-
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Overview
The LT7170RV#TRPBF is a monolithic synchronous step-down regulator from Analog Devices, designed for high-current applications. It operates with an input voltage range of 2.9 V to 16 V and delivers up to 20 A output current. The device supports adjustable output voltages between 400 mV and 5.5 V. It features a programmable switching frequency ranging from 400 kHz to 4 MHz. The component utilizes a 24-pin LQFN package and functions within a junction temperature range of -40°C to +150°C.
Feature Summary
- Integrates power switches and control circuitry into a single monolithic buck topology
- Supports flexible switching frequency adjustment to optimize efficiency and component size
- Includes internal compensation and protection mechanisms for stable operation
Applications
- Point-of-load regulation in industrial equipment
- Power supply stages for communication infrastructure
- Voltage conversion for embedded computing systems
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm that the RV grade meets the required thermal and electrical specifications for the target operating environment. Ensure compatibility with the intended PCB footprint for the LQFN-24 package before finalizing procurement.
Selection Notes
Select this component when a compact solution is required for converting 12 V or similar bus voltages to lower logic levels. The wide input voltage range accommodates various source conditions. Consider the thermal performance of the LQFN-24 package relative to the expected load current and ambient temperature constraints.
Part Context
This part belongs to the LT7170 series of Silent Switcher regulators. These devices are engineered to minimize radiated electromagnetic interference without requiring external shielding. The series targets applications demanding high efficiency and low noise in space-constrained designs.
Replacement Considerations
Check datasheets for alternative parts offering similar 20 A capability and 16 V input limits. Verify pinout compatibility if substituting directly on existing layouts.
