| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2A (4 Weeks) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Mfr | Monolithic Power Systems Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Voltage - Input (Max) | 55V |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Current - Output | 3A |
| Supplier Device Package | 8-SOICE |
| Output Configuration | Positive |
| Function | Step-Down |
| Topology | Buck |
| Frequency - Switching | 100kHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 45V |
| Voltage - Input (Min) | 4.5V |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MP24943 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
MP24943DN-LF-Z step-down switching regulator Chip
The MP24943DN-LF-Z is a monolithic, synchronous step-down (Buck) switching regulator designed by Monolithic Power Systems (MPS). It provides a 3A continuous output current with a wide input voltage range of 4.5V to 55V, making it suitable for industrial, automotive, and battery-powered applications. The device features a fixed 100kHz switching frequency, low EMI signature, and programmable output overvoltage protection (OVP). It integrates a 0.15Ω internal power MOSFET and supports output voltages adjustable from 0.8V to 45V.
MP24943DN-LF-Z Buck Switching Regulator Applications
● Automotive Systems: GPS navigation, infotainment, and battery management.
● Industrial Control: Power supplies for sensors, actuators, and communication modules.
● Consumer Electronics: Portable devices, USB power delivery, and audio equipment.
● Battery Chargers: Linear charger power stages and power bank designs.
● Telecommunications: Low-noise power supplies for RF and baseband circuits.
Alternative voltage regulator/buck converter Models
● TPS5430DDAR (Texas Instruments): A 3A, 42V input Buck converter with integrated MOSFETs, suitable for high-voltage industrial applications.
● LM2596S-ADJ (Texas Instruments): A 3A step-down regulator with adjustable output (1.2V to 37V), widely used in low-cost power supplies.
● LT3080EDC-3.3#TRPBF (Analog Devices): A low-dropout linear regulator with 1.1A output, ideal for precision analog circuits.
● XL4015E1 (XLSemi): A 5A, 36V input DC-DC converter with adjustable output, suitable for high-power applications.
● SY8209ABC (Silergy): A 2A, 18V input Buck converter with ultra-fast transient response, optimized for mobile devices.