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MP2122A 2.7-6V, 2A, 1MHz Synchronous Buck Regulator TSOT23
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pMPS MP2122A — synchronous buck regulator, 2.7-6V input, 2A output, 1 MHz, TSOT23./p
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MP2122A 2.7-6V, 2A, 1MHz Synchronous Buck Regulator TSOT23
MPS MP2122A is a synchronous buck regulator that accepts 2.7 V to 6 V input, delivers 2 A, switches at 1 MHz, supplied in a TSOT23 package.
Key Specifications
| Part Number | MP2122A |
| Input Voltage | 2.7 V to 6 V |
| Output Current | 2 A |
| Switching Frequency | 1 MHz |
| Quiescent Current | 45 uA |
| Topology | Synchronous Buck Regulator |
| Package | TSOT23 |
| Ordering Codes | MP2122A |
Features
- Dual 2A Output Current
- >93% Peak Efficiency
- >80% Light-Load Efficiency
- Advanced Light-Load Mode
- Wide 2.7V to 6V Operating Input Range
- 80mΩ and 35mΩ Internal Power MOSFET
- 1MHz Fixed Switching Frequency
- Adjustable Output from 0.608V to VIN
- 180° Phase-Shifted Operation
- 100% Duty Cycle Operation
Applications
- Small/Handheld Devices
- DVD Drivers
- Portable Instruments
- Smart Phones and Feature Phones
Design Notes
- The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
- Keep the input loop short — high di/dt at the switch node sets conducted EMI.
- Power switches are integrated, so the thermal path is the PCB copper under the pad.
- Package TSOT23 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2122A?
2.7–6 V input and 2 A output.
What switching frequency does the MP2122A run at?
1 MHz.
Which package is the MP2122A available in?
TSOT23.
Shenzhen Gaorunxin Technology Co., Ltd
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