Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR) |
| Part Status | Active |
| Type | DC DC Regulator |
| Topology | Step-Down (Buck), Step-Up (Boost) |
| Internal Switch(s) | Yes |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 4.5V |
| Voltage - Supply (Max) | 55V |
| Current - Output / Channel | 2.5A |
| Frequency | 500kHz |
| Dimming | Analog, PWM |
| Applications | Automotive, Backlight, Lighting |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Tổng quan
Description
MP2483DS-LF-Z is a Monolithic Power Systems high-efficiency, synchronous buck regulator IC with integrated high- and low-side MOSFETs, in the DS-LF-Z lead-free package. It steps down a higher input voltage to a lower, adjustable output using an external feedback network. The device supports enable/shutdown control, soft-start, and current‑mode regulation, plus protection features such as overcurrent, overtemperature, undervoltage lockout, and thermal shutdown. It is intended for point‑of‑load power in consumer electronics, networking, and industrial applications and typically requires only a few external components (inductor, input/output capacitors, and feedback resistors) for a complete regulator solution. For exact electrical specs, pinout, and application guidance, refer to the official MP2483DS-LF-Z datasheet.
Features
Here are the key features of MP2483DS-LF-Z (highlights from the datasheet):
- 60V input range; 3A continuous output capability
- Synchronous buck regulator with integrated high-side and low-side MOSFETs
- Fixed-frequency operation (typical switching frequency ≈ 2.25 MHz)
- Adjustable output voltage via external resistor divider (Vout set by Vref)
- Current-mode control for fast transient response and good regulation
- Enable input with soft-start control
- Protections: over-current/short-circuit protection, over-temperature shutdown, UVLO
- High efficiency (typical values high across load and input ranges)
- Low quiescent current for efficient standby operation
- Lead-free package (LF) with Z suffix indicating package/style
Note: exact package details and some electrical specs can vary by revision; consult the datasheet for precise numbers and recommended application circuit.
- 60V input range; 3A continuous output capability
- Synchronous buck regulator with integrated high-side and low-side MOSFETs
- Fixed-frequency operation (typical switching frequency ≈ 2.25 MHz)
- Adjustable output voltage via external resistor divider (Vout set by Vref)
- Current-mode control for fast transient response and good regulation
- Enable input with soft-start control
- Protections: over-current/short-circuit protection, over-temperature shutdown, UVLO
- High efficiency (typical values high across load and input ranges)
- Low quiescent current for efficient standby operation
- Lead-free package (LF) with Z suffix indicating package/style
Note: exact package details and some electrical specs can vary by revision; consult the datasheet for precise numbers and recommended application circuit.
Pinout
- Pin count: 16 pins (QFN-16, DS-LF-Z package).
- Function: A synchronous buck DC-DC converter with integrated high- and low-side MOSFETs. It steps down Vin to a regulated Vout; uses an external inductor and capacitor network, with feedback to set the output. Features include EN/soft-start, bootstrap for high-side gate drive, and protection (overcurrent/thermal, etc.).
- Function: A synchronous buck DC-DC converter with integrated high- and low-side MOSFETs. It steps down Vin to a regulated Vout; uses an external inductor and capacitor network, with feedback to set the output. Features include EN/soft-start, bootstrap for high-side gate drive, and protection (overcurrent/thermal, etc.).
Manufacturer
- Manufacturer: Monolithic Power Systems, Inc. (MPS)
- What kind of company: A fabless semiconductor company that designs, develops, and markets high-performance power-management, analog and mixed-signal ICs for automotive, industrial, and consumer applications.
- What kind of company: A fabless semiconductor company that designs, develops, and markets high-performance power-management, analog and mixed-signal ICs for automotive, industrial, and consumer applications.
Application
MP2483DS-LF-Z is a high-efficiency synchronous buck regulator. Typical application areas include:
- CPUs/GPUs/ASICs core VRMs
- Motherboards, graphics cards, FPGA/SoC boards
- Telecom and data-communications equipment
- Industrial automation and control systems
- Embedded and consumer electronics and other battery-powered devices requiring compact, high-efficiency DC-DC conversion
- CPUs/GPUs/ASICs core VRMs
- Motherboards, graphics cards, FPGA/SoC boards
- Telecom and data-communications equipment
- Industrial automation and control systems
- Embedded and consumer electronics and other battery-powered devices requiring compact, high-efficiency DC-DC conversion
Package
DFN-8 (3×3 mm) package with exposed pad, RoHS-compliant lead-free (LF).
