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MP28210 2-5.5V, 1A, 1.5MHz Step-Down Regulator
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pMPS MP28210 — step-down regulator, 2-5.5V input, 1A output, 1.5 MHz./p
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MP28210 2-5.5V, 1A, 1.5MHz Step-Down Regulator
MPS MP28210 is a step-down regulator that accepts 2 V to 5.5 V input, delivers 1 A, switches at 1.5 MHz.
Key Specifications
| Part Number | MP28210 |
| Input Voltage | 2 V to 5.5 V |
| Output Current | 1 A |
| Switching Frequency | 1.5 MHz |
| Topology | Step-Down Regulator |
| Ordering Codes | MP28210 |
Features
- Ultra-Low 500nA IQ
- Wide 2.0V to 5.5V Operating Input Range
- 7 Selectable Output Voltages
- Up to 1A Output Current
- 1.5MHz Switching Frequency in Continuous Conduction Mode (CCM)
- 100% Duty Cycle in Dropout Mode
- 0.25Ω and 0.25Ω Internal Power MOSFET Switches
- Cycle-by-Cycle Over-Current Protection (OCP)
- Short-Circuit Protection (SCP) with Hiccup Mode
- Available in a CSP-12 (1.2mmx1.6mm) Package
Applications
- Wearables
- Internet-of-Things (IoT)
- Portable Instruments
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.
Common Questions
What is the input and output rating of the MP28210?
2–5.5 V input and 1 A output.
What switching frequency does the MP28210 run at?
1.5 MHz.
Shenzhen Gaorunxin Technology Co., Ltd
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