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MP1601A 2.3-5.5V, 1A, 2.2MHz Synchronous Step-down Converter SOT563
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pMPS MP1601A — synchronous step-down converter, 2.3-5.5V input, 1A output, 2.2 MHz, SOT563./p
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MP1601A 2.3-5.5V, 1A, 2.2MHz Synchronous Step-down Converter SOT563
MPS MP1601A is a synchronous step-down converter that accepts 2.3 V to 5.5 V input, delivers 1 A, switches at 2.2 MHz, supplied in a SOT563 package.
Key Specifications
| Part Number | MP1601A |
| Input Voltage | 2.3 V to 5.5 V |
| Output Current | 1 A |
| Switching Frequency | 2.2 MHz |
| Topology | Synchronous Step-down Converter |
| Package | SOT563 |
| Ordering Codes | MP1601A |
Features
- 2.2MHz Switching Frequency
- EN for Power Sequencing
- Wide 2.3V to 5.5V Operating Input Range
- Output Adjustable from 0.6V
- Up to 1A Output Current
- 160mΩ and 120mΩ Internal Power MOSFET Switches
- Output Discharge
- 100% Duty Cycle
- Short-Circuit Protection (SCP) with Hiccup Mode
- Stable with Low ESR Output Ceramic Capacitors
Applications
- Wireless/Networking Cards
- Portable and Mobile Devices
- Battery-Powered/Wearable Devices
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 SOT563 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP1601A?
2.3–5.5 V input and 1 A output.
What switching frequency does the MP1601A run at?
2.2 MHz.
Which package is the MP1601A available in?
SOT563.
Shenzhen Gaorunxin Technology Co., Ltd
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