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MP2141Q-18 2.3-5.5V, 1.5A Synchronous Step-Down Converter SOT563
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pMPS MP2141Q-18 — synchronous step-down converter, 2.3-5.5V input, 1.5A output, SOT563./p
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MP2141Q-18 2.3-5.5V, 1.5A Synchronous Step-Down Converter SOT563
MPS MP2141Q-18 is a synchronous step-down converter that accepts 2.3 V to 5.5 V input, delivers 1.5 A, supplied in a SOT563 package.
Key Specifications
| Part Number | MP2141Q-18 |
| Input Voltage | 2.3 V to 5.5 V |
| Output Current | 1.5 A |
| Topology | Synchronous Step-Down Converter |
| Package | SOT563 |
| Ordering Codes | MP2141Q-18 |
Features
- PFM Quiescent Current: 20μA
- EN for Power Sequencing
- VSEL for PFM/PWM
- Wide 2.3V to 5.5V Operating Input Range
- Fixed Output Voltage: 1.8V
- Up to 1.5A of Output Current
- 120mΩ and 80mΩ Internal Power MOSFET Switches
- Output Discharging
- Short-Circuit Protection (SCP) with Hiccup Mode
- Stable with Low ESR Output Ceramic Capacitors
Applications
- DDR/Codec
- 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.
- Package SOT563 — check the land pattern in the datasheet before layout.
Common Questions
What is the input and output rating of the MP2141Q-18?
2.3–5.5 V input and 1.5 A output.
Which package is the MP2141Q-18 available in?
SOT563.
Shenzhen Gaorunxin Technology Co., Ltd
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