Model No: MP2451DT-LF-Z
Monolithic Power Systems Inc. MP2451DT-LF-Z
Manufacturer: Monolithic Power Systems Inc.
SEMICON NO.: MP2451DT-LF-Z
Package: SOT-23-6
Stock: In stock
Description: Buck Regulator Positive 0.8V 1 Output 600mA
SEMICON NO.: MP2451DT-LF-Z
Package: SOT-23-6
Stock: In stock
Description: Buck Regulator Positive 0.8V 1 Output 600mA
Quantity :
| Mfr | Monolithic Power Systems Inc. |
| Device Type | Step-Down (Buck) Switching Regulator |
| Input Voltage | 3.3 V to 36 V |
| Absolute Maximum | 40 V |
| Output Configuration | Positive |
| Topology | Buck (Step-Down) |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Output Voltage Range | 0.8 V to 28.8 V |
| Output Current (Max) | 600 mA |
| Switching Frequency | 2 MHz (Fixed) |
| Internal Power MOSFET | 500 mΩ (High-Side) |
| Quiescent Current | 130 µA (Operating) |
| Shutdown Current | 3 µA |
| Control Mode | Current Mode Control |
| Operating Temperature | -40°C to +125°C |
| Package | SOT-23-6 |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
MP2451DT‑LF‑Z is a high‑frequency non‑synchronous step‑down buck converter from MPS, housed in SOT‑23‑6 package, supporting 3.3V‑36V wide input voltage, delivering up to 0.6A adjustable output current, adopting current‑mode control with integrated high‑side power MOSFET, featuring 2MHz fixed switching frequency, internal compensation and multiple built‑in protections, suitable for industrial, battery‑powered and 24V field bus powered embedded systems.
Key highlights: Wide 3.3V‑36V input voltage range tolerates high‑voltage industrial and transient input conditions; integrated 500mΩ high‑side MOSFET eliminates external power switch requirement; 2MHz fixed switching frequency enables compact passive component selection for small PCB layouts; internally compensated loop achieves stable operation with ceramic output capacitors without extra compensation circuits; internal soft‑start, thermal shutdown and precision current‑limit protection enhance system robustness; low 130μA operating quiescent current and 3μA shutdown current optimize battery standby power consumption; adjustable output ranges from 0.8V to 0.8×VIN with over 90% peak conversion efficiency under proper working conditions.
FAQ
Q: Does MP2451DT‑LF‑Z need external compensation components?
A: No, internal compensation supports ceramic capacitors for simplified design.
Q: What is the maximum continuous output current?
A: 0.6A, thermal derating is required under high input voltage and high ambient temperature.
Q: Can it operate for automotive raw battery input?
A: For automotive scenarios, select MPQ2451‑AEC1 automotive‑grade variant for reliability against harsh vehicle conditions.
FAQ
Q: Does MP2451DT‑LF‑Z need external compensation components?
A: No, internal compensation supports ceramic capacitors for simplified design.
Q: What is the maximum continuous output current?
A: 0.6A, thermal derating is required under high input voltage and high ambient temperature.
Q: Can it operate for automotive raw battery input?
A: For automotive scenarios, select MPQ2451‑AEC1 automotive‑grade variant for reliability against harsh vehicle conditions.
Alternative DC‑DC regulator models
● MPQ2451DT‑AEC1‑LF‑Z: AEC‑Q100 automotive‑grade buck converter with identical electrical performance, optimized for automotive transient and temperature stress environments.
● MP1540DJ‑LF‑Z: Compact high‑voltage buck converter with similar package, offering different current rating for low‑power auxiliary power rail designs.
● LM25017MX/NOPB: 36V input non‑synchronous buck regulator supporting 0.6A output, providing pin‑to‑pin compatible alternative for cross‑brand migration projects.
● MPQ2451DT‑AEC1‑LF‑Z: AEC‑Q100 automotive‑grade buck converter with identical electrical performance, optimized for automotive transient and temperature stress environments.
● MP1540DJ‑LF‑Z: Compact high‑voltage buck converter with similar package, offering different current rating for low‑power auxiliary power rail designs.
● LM25017MX/NOPB: 36V input non‑synchronous buck regulator supporting 0.6A output, providing pin‑to‑pin compatible alternative for cross‑brand migration projects.
