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IS31PM3420B-GRLS4-TR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Lumissil Microsystems. Its product description is IC REG BUCK ADJ 3A 8SOP. Review the specifications below when checking this part for your BOM.
Voltage Regulators - DC DC Switching Regulators specifications for IS31PM3420B-GRLS4-TR
- Description：IC REG BUCK ADJ 3A 8SOP
- Series：-
- Mfr：Lumissil Microsystems
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3.8V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：24V
- Current - Output：3A
- Frequency - Switching：400kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOP-EP
- Grade：-
- Qualification：-
Voltage Regulators - DC DC Switching Regulators datasheet and documents for IS31PM3420B-GRLS4-TR
Voltage Regulators - DC DC Switching Regulators Overview
The IS31PM3420B-GRLS4-TR is a synchronous step-down voltage regulator from Lumissil Microsystems. It operates with an input voltage range of 3.8V to 36V and provides a maximum output current of 3A. The device features a fixed switching frequency of 400kHz and supports positive adjustable output voltages starting from 1V. It is housed in an 8-SOIC package with an exposed pad, measuring 4.9mm x 6.0mm.
Voltage Regulators - DC DC Switching Regulators Feature Summary
- Synchronous rectification for improved efficiency
- Wide input voltage capability
- Adjustable output voltage regulation
Voltage Regulators - DC DC Switching Regulators Applications
- Point-of-load power supply stages
- Battery-powered systems requiring efficient step-down conversion
- Industrial control power distribution
Voltage Regulators - DC DC Switching Regulators Procurement Notes
Verify the specific suffix GRLS4 against the manufacturer's official datasheet to confirm pinout compatibility and thermal pad specifications. Ensure the ordering information matches the exact package dimensions and marking requirements. Cross-reference the component revision level to guarantee consistency with existing design documentation and assembly processes.
Voltage Regulators - DC DC Switching Regulators Selection Notes
Select this component when a compact synchronous buck solution is required for inputs up to 36V. The 400kHz frequency allows for smaller passive components compared to lower-frequency alternatives. The exposed pad design facilitates thermal dissipation for continuous 3A operation in space-constrained PCB layouts.
Voltage Regulators - DC DC Switching Regulators Part Context
This part belongs to Lumissil’s PMIC portfolio, specifically designed for general-purpose power management. It complements their LED drivers and sensor solutions by providing stable core or peripheral voltages. The series targets applications needing reliable, high-efficiency DC-DC conversion in automotive and industrial environments.
Voltage Regulators - DC DC Switching Regulators Replacement Considerations
The IS32PM3420B-GRLA3-TR is a documented variant within the same product family. Verify if the package suffix difference impacts mechanical fit or electrical performance before substitution.
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