사양
| 속성 | 가치 |
| 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) | 2.5V |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 6V |
| Current - Output | 3A |
| Frequency - Switching | 1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
MP2249DN-LF-Z is a Monolithic Power Systems synchronous buck DC-DC regulator. It integrates the control circuitry with high-side and low-side MOSFETs in a lead-free LF-Z package to efficiently convert a higher input voltage to a lower, regulated output.
Key points:
- Synchronous buck topology for high efficiency
- External feedback network for adjustable output
- Enable/shutdown input, soft-start, and protection features (overcurrent, overtemperature, UVLO)
- Suitable for compact power rails in CPUs/GPUs, SoCs, memory, FPGA, and telecom applications
- RoHS-compliant, lead-free packaging (LF-Z)
For exact electrical specs (input voltage range, max output current, switching frequency, efficiency, pinout), refer to the MP2249DN-LF-Z datasheet. If you’d like, I can summarize the key numbers from the datasheet.
Key points:
- Synchronous buck topology for high efficiency
- External feedback network for adjustable output
- Enable/shutdown input, soft-start, and protection features (overcurrent, overtemperature, UVLO)
- Suitable for compact power rails in CPUs/GPUs, SoCs, memory, FPGA, and telecom applications
- RoHS-compliant, lead-free packaging (LF-Z)
For exact electrical specs (input voltage range, max output current, switching frequency, efficiency, pinout), refer to the MP2249DN-LF-Z datasheet. If you’d like, I can summarize the key numbers from the datasheet.
Equivalent
I don’t have a reliable, up-to-date cross-reference for MP2249DN-LF-Z offline. I can search distributor catalogs (e.g., Digi-Key, Mouser) for equivalents now. Do you want me to look them up? If so, please share target specs (VIN range, LED current, dimming type, package) to narrow results.
Features
MP2249DN-LF-Z is a compact, high-efficiency, synchronous buck regulator. Key features:
- Integrated high-side and low-side MOSFETs (synchronous)
- Wide input voltage range
- Output voltage adjustable via external resistors
- Fixed-frequency, current-mode PWM for fast transient response
- Soft-start and enable input
- Protections: overcurrent, overvoltage, undervoltage lockout, thermal shutdown
- Suitable for low quiescent current and compact designs
- High efficiency with a small DFN-8 (LF-Z) package
- RoHS/lead-free compliant
- Integrated high-side and low-side MOSFETs (synchronous)
- Wide input voltage range
- Output voltage adjustable via external resistors
- Fixed-frequency, current-mode PWM for fast transient response
- Soft-start and enable input
- Protections: overcurrent, overvoltage, undervoltage lockout, thermal shutdown
- Suitable for low quiescent current and compact designs
- High efficiency with a small DFN-8 (LF-Z) package
- RoHS/lead-free compliant
Pinout
- Pin count: 8 pins (DFN-8 package, lead-free variant)
- Function: High-efficiency switch-mode constant-current LED driver (buck LED driver with integrated switching transistor for driving LEDs from a higher input voltage).
- Function: High-efficiency switch-mode constant-current LED driver (buck LED driver with integrated switching transistor for driving LEDs from a higher input voltage).
Manufacturer
- Manufacturer: Monolithic Power Systems, Inc. (MPS).
- Company type: A fabless semiconductor company that designs and markets high-performance analog/mixed-signal power-management ICs for consumer electronics, computing, and industrial applications (publicly traded on NASDAQ as MPWR).
- Company type: A fabless semiconductor company that designs and markets high-performance analog/mixed-signal power-management ICs for consumer electronics, computing, and industrial applications (publicly traded on NASDAQ as MPWR).
Application
MP2249DN-LF-Z is a high-efficiency, synchronous buck regulator. Typical applications include:
- CPU/GPU core voltage regulators in desktops and laptops
- Memory and chipset rails
- VRMs for graphics cards, FPGAs, and ASICs
- Motherboard PMICs
- Telecom, network, and industrial power supplies needing high-efficiency DC-DC conversion
(Lead-free package option: LF-Z.)
- CPU/GPU core voltage regulators in desktops and laptops
- Memory and chipset rails
- VRMs for graphics cards, FPGAs, and ASICs
- Motherboard PMICs
- Telecom, network, and industrial power supplies needing high-efficiency DC-DC conversion
(Lead-free package option: LF-Z.)
Package
QFN-16 (4×4 mm) package with an exposed pad; lead-free (LF).
