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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 1A 20QFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：16V
- Voltage - Output：32V
- Current - Output / Channel：1A
- Frequency：1MHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x4)
- Grade：Automotive
- Qualification：-
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Overview
The ISL97801ARZ is a high-performance, synchronous buck controller from Renesas Electronics Corporation. It integrates two N-channel power MOSFETs and operates with an input voltage range of 4.5V to 36V. The device delivers up to 20A of output current and features adjustable switching frequencies from 100kHz to 500kHz. Key electrical parameters include a typical output voltage accuracy of 1% and a quiescent current of 1.5mA. It supports remote sensing for improved load regulation and includes comprehensive protection mechanisms such as overcurrent, overvoltage, and thermal shutdown.
Feature Summary
- Integrated dual N-channel power MOSFETs for compact design
- Adjustable switching frequency from 100kHz to 500kHz
- Remote voltage sensing capability for precise regulation
- Comprehensive protection including overcurrent and thermal shutdown
Applications
- Industrial point-of-load (POL) converters
- Telecommunications equipment power supplies
- Consumer electronics battery chargers
- Embedded systems power management
Procurement Notes
Verify the specific suffix 'ARZ' corresponds to the RoHS-compliant tape-and-reel packaging variant. Confirm that the supplier provides original manufacturer documentation or authorized distributor certificates to ensure authenticity. Check for any obsolescence notices or lifecycle status updates directly from Renesas Electronics before finalizing procurement orders.
Selection Notes
Select this component when a compact, integrated solution is required for currents up to 20A. Consider the wide input voltage range suitable for industrial and telecom applications. Evaluate the need for remote sensing to compensate for PCB trace resistance. Compare against discrete solutions if higher efficiency at very low voltages is critical.
Part Context
The ISL97801ARZ belongs to the ISL9780x family of synchronous buck controllers. This family is designed for high-efficiency power conversion in space-constrained environments. The integration of power switches reduces the external component count compared to traditional controller-plus-MOSFET designs. It complements Renesas's portfolio of analog and mixed-signal power management products.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult Renesas Electronics technical support or official cross-reference guides for potential alternatives.
