MP1584EN-LF-Z
| 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 | -20°C ~ 85°C (TA) |
| Voltage - Input (Max) | 28V |
| 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 ~ 1.5MHz |
| Synchronous Rectifier | No |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 25V |
| Voltage - Input (Min) | 4.5V |
| Package | Tape & Reel (TR) |
| Product Status | Not For New Designs |
| Base Product Number | MP1584 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
MP1584EN-LF-Z buck converter DC-DC converter ic 0.8V 1 Output 3A
The MP1584EN-LF-Z is a high-frequency, monolithic step-down (buck) switching regulator from Monolithic Power Systems (MPS), widely recognized for its balance of performance and compact design. Housed in a thermally enhanced 8-pin SOIC-EP package, it integrates a high-side 650V-rated power MOSFET capable of delivering up to 3A of continuous output current. The device operates over a wide 4.5V to 28V input voltage range, making it suitable for unregulated adapters and automotive environments, while its adjustable output can be set from 0.8V to 25V via an external resistor divider. Utilizing current-mode control with a programmable switching frequency ranging from 100 kHz to 1.5 MHz, it offers excellent transient response and allows designers to optimize for efficiency or component size. Key attributes include a low 100 µA operating quiescent current for battery-powered applications, internal soft-start, and comprehensive protection features like cycle-by-cycle current limiting and thermal shutdown. Its high switching frequency enables the use of smaller external inductors and capacitors, making it a staple in space-constrained PCBs.
Alternative step-down regulators
● LM2596S (Texas Instruments): A classic, rugged 3A buck regulator in a TO-263 package, offering higher input voltage (40V) tolerance but lower switching frequency (~150 kHz).
● MP2307 (Monolithic Power Systems): A synchronous buck converter with higher efficiency (integrated low-side FET) and similar footprint, often used as a drop-in upgrade in modern designs.
● XL4015 (XLSEMI): A 5A-capable step-down converter offering higher current in a similar package, popular in high-power LED driver modules.
● TPS5430 (Texas Instruments): A 3A, 36V input capable buck converter with integrated FETs, suitable for designs requiring a wider input safety margin.
