Welcome to our company!
MP2249 2.5-6V, 3A, 1MHz Low-Voltage Synchronous Step-Down Converter QFN10
Share
pMPS MP2249 — Low-Voltage Synchronous Step-Down Converter, 2.5-6V input, 3 A output, QFN10./p
- Product Details
- Download
MP2249 2.5-6V, 3A, 1MHz Low-Voltage Synchronous Step-Down Converter QFN10
The MPS MP2249 is a Low-Voltage Synchronous Step-Down Converter. It operates from a 2.5 V to 6 V input, is rated for 3 A and switches at 1 MHz. It is supplied in a QFN10 package.
The MP2249 is a 1MHz constant frequency, current mode, PWM step-down converter.
Key Specifications
| Part Number | MP2249 |
| Function | Low-Voltage Synchronous Step-Down Converter |
| Input Voltage | 2.5 V to 6 V |
| Current Rating | 3 A |
| Switching Frequency | 1 MHz |
| Interface | PWM |
| Peak Efficiency | 90% |
| Package | QFN10 |
| Ordering Codes | MP2249 |
Features
- High Efficiency: Up to 90%
- Power Save Mode at Light Load
- 1MHz Constant Switching Frequency
- Up to 4.5A PeakCurrent
- 2.5V to 6V Input Voltage Range
- Output Adjustable from 0.6V to VIN
- 100% Duty Cycle in Dropout
- Output Discharge Function
- Internal Soft-Start Control
- Power Good Indicator
Typical Application Circuit
Applications
- Cellular and Smart Phones
- Microprocessors and DSP Core Supplies
- MP3 Players
- Digital Still and Video Cameras
- Portable Instruments "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.
Design Notes
- Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
- The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
- Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
- Route the feedback divider from the output capacitor terminals, away from the switch node.
Common Questions
What input voltage does the MP2249 support?
2.5 V to 6 V. The rated output is 3 A.
Which package and ordering codes apply to the MP2249?
QFN10; order codes include MP2249.
What are the defining features of the MP2249?
High Efficiency: Up to 90% Power Save Mode at Light Load
Shenzhen Gaorunxin Technology Co., Ltd
Online message
Shenzhen Gaorunxin Technology Co., Ltd
