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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 2.5A 16SOIC
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tube
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：80V
- Voltage - Output：-
- Current - Output / Channel：2.5A (Switch)
- Frequency：280kHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-20°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The MP4603EF-LF-Z is a DC-DC regulator IC from Monolithic Power Systems, designed for LED driver applications. It features a step-down (buck) topology and operates within an input voltage range of 4.5 V to 75 V. The device supports a switching frequency of 950 kHz and includes analog and PWM dimming capabilities. Packaged in a TSSOP-EP-16 format, it functions reliably between -20°C and +85°C. This component serves as a partial power WLED driver for TV applications.
Feature Summary
- Supports analog and PWM dimming control methods
- Integrates buck topology for efficient voltage regulation
- Designed specifically for WLED driver applications in TVs
Applications
- TV backlighting systems
- WLED driver circuits
- Partial power LED lighting solutions
Procurement Notes
Verify the NRND status before procurement, as this component is not recommended for new designs. Confirm the exact suffix (LF-Z) matches your requirements. Check RoHS compliance documentation. Ensure compatibility with existing PCB footprints for the TSSOP-EP-16 package. Review the latest datasheet for any design-in warnings or updates.
Selection Notes
Select this part for applications requiring a single-output buck converter with high input voltage tolerance up to 75 V. Consider the 950 kHz switching frequency for compact inductor sizing. Verify that the thermal performance of the TSSOP-EP-16 package meets your heat dissipation needs. Ensure the dimming interface aligns with your system's control logic.
Part Context
This component belongs to the MP4601 series family from Monolithic Power Systems. It shares similar functional characteristics with other parts in the lineup but is distinct in its specific pinout and electrical ratings. The MP4603 variant is tailored for specific LED driving tasks, differing from general-purpose regulators.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult MPS engineering support for direct replacements or pin-compatible alternatives.
