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Спецификации
| Атрибут | Ценность |
| Package / Case | Tape & Reel (TR) |
| Part Status | Not For New Designs |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.7V |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 5.4V |
| Current - Output | 4A |
| Frequency - Switching | 1.5MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Обзор
Description
MP28115DQ-LF-Z is a Monolithic Power Systems DC-DC buck regulator IC (power-management IC) used to step down a higher input voltage to a stable lower output for digital electronics. It is designed for high efficiency and compact size in power management applications.
Key points:
- Type: Buck converter IC (typically used with an inductor, diode/MOSFETs, and feedback network).
- Features: adjustable output, switching-frequency control, soft-start, enable/disable, UVLO, over-current/short-circuit protection, and over-temperature protection.
- Packaging: -LF-Z denotes lead-free, RoHS-compliant packaging.
- Applications: voltage regulation for VRMs and point-of-load regulators in computers, telecom, embedded/consumer electronics, and LED drivers.
Note: exact electrical specs (input voltage range, output voltage range, switching frequency, current capability, pinout) vary by variant. Refer to the official datasheet for precise numbers and recommended app notes.
Key points:
- Type: Buck converter IC (typically used with an inductor, diode/MOSFETs, and feedback network).
- Features: adjustable output, switching-frequency control, soft-start, enable/disable, UVLO, over-current/short-circuit protection, and over-temperature protection.
- Packaging: -LF-Z denotes lead-free, RoHS-compliant packaging.
- Applications: voltage regulation for VRMs and point-of-load regulators in computers, telecom, embedded/consumer electronics, and LED drivers.
Note: exact electrical specs (input voltage range, output voltage range, switching frequency, current capability, pinout) vary by variant. Refer to the official datasheet for precise numbers and recommended app notes.
Features
MP28115DQ-LF-Z is a Monolithic Power Systems buck regulator with an integrated switch. Key features include:
- Integrated high-side MOSFET and controller for a compact buck solution
- Wide input voltage range for versatility (battery, automotive, etc.)
- Adjustable output via feedback network; supports external compensation
- Current-mode PWM control with fixed switching frequency; fast transient response
- Soft-start and enable/shutdown control
- Protection: overcurrent/short-circuit, overtemperature shutdown, and overvoltage protection
- Undervoltage lockout and safe-start behavior
- Low quiescent current for efficiency at light load
- Lead-free, RoHS-compliant package (LF-Z) for compact applications
Note: For exact electrical specs (input range, output voltage options, efficiency, package details), please refer to the official datasheet.
- Integrated high-side MOSFET and controller for a compact buck solution
- Wide input voltage range for versatility (battery, automotive, etc.)
- Adjustable output via feedback network; supports external compensation
- Current-mode PWM control with fixed switching frequency; fast transient response
- Soft-start and enable/shutdown control
- Protection: overcurrent/short-circuit, overtemperature shutdown, and overvoltage protection
- Undervoltage lockout and safe-start behavior
- Low quiescent current for efficiency at light load
- Lead-free, RoHS-compliant package (LF-Z) for compact applications
Note: For exact electrical specs (input range, output voltage options, efficiency, package details), please refer to the official datasheet.
Pinout
- Pin count: 8 pins (8-pin package, e.g., QFN/SOP)
- Function: High-efficiency buck regulator/LED driver with integrated switch MOSFET, providing constant-current regulation for LED strings (CC/CV operation with protections).
- Function: High-efficiency buck regulator/LED driver with integrated switch MOSFET, providing constant-current regulation for LED strings (CC/CV operation with protections).
Manufacturer
- Manufacturer: Monolithic Power Systems, Inc. (MPS).
- What kind of company: A fabless semiconductor company that designs and markets high-performance power-management ICs (switching regulators, controllers, LDOs, etc.) for consumer, industrial, data/comms, and automotive applications (publicly traded on NASDAQ as MPWR).
- What kind of company: A fabless semiconductor company that designs and markets high-performance power-management ICs (switching regulators, controllers, LDOs, etc.) for consumer, industrial, data/comms, and automotive applications (publicly traded on NASDAQ as MPWR).
Application
MP28115DQ-LF-Z is a high-efficiency switching regulator (buck) IC. Typical applications include:
- Consumer electronics power supplies and VRMs
- Notebook/desktop adapter power modules
- Automotive 12V/24V DC-DC converters
- LED lighting backlights and general LED-driver power stages
- Industrial/telecom power-supply circuits
Concise summary: enables efficient generation of low-voltage rails in compact power-management designs.
- Consumer electronics power supplies and VRMs
- Notebook/desktop adapter power modules
- Automotive 12V/24V DC-DC converters
- LED lighting backlights and general LED-driver power stages
- Industrial/telecom power-supply circuits
Concise summary: enables efficient generation of low-voltage rails in compact power-management designs.
Package
Package type: 16‑pin QFN (QFN‑16, 4×4 mm). The LF suffix means lead‑free/RoHS compliant, and Z indicates tape‑and‑reel packaging.
