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MP5402 7-36V, 5A Frequency-Selectable Step-Down Converter QFN-26
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pMPS MP5402 — Frequency-Selectable Step-Down Converter, 7-36V input, 5 A output, QFN-26./p
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MP5402 7-36V, 5A Frequency-Selectable Step-Down Converter QFN-26
The MPS MP5402 is a Frequency-Selectable Step-Down Converter. It operates from a 7 V to 36 V input, is rated for 5 A and switches at 150 kHz. It is supplied in a QFN-26 package.
The MP5402 integrates a monolithic, step- down, switch-mode converter with two USB current-limit switches and a charging port identification circuit.
Key Specifications
| Part Number | MP5402 |
| Function | Frequency-Selectable Step-Down Converter |
| Input Voltage | 7 V to 36 V |
| Output Voltage | 5 V |
| Current Rating | 5 A |
| Switching Frequency | 150 kHz |
| Package | QFN-26 |
| Ordering Codes | MP5402 |
Features
- Wide 7V to 36V Operating Input Voltage Range
- Fixed 5V Output Voltage with Line Drop Compensation
- Accurate USB1/USB2 Output Current Limit
- 40mΩ/32mΩ Low-RDS(ON) Internal Buck Power MOSFETs
- 24mΩ/24mΩ Low-RDS(ON) Internal USB1/USB2 Power MOSFETs
- 350kHz / 250kHz / 150kHz Frequency Selectable
- Programmable Line Drop Compensation
- Output Over-Voltage Protection (OVP)
- Hiccup Current Limit
- Supports DCP Schemes for BC1.2, Divider Mode, and 1.2V/1.2V Mode
Typical Application Circuit
Applications
- USB Dedicated Charging Ports (DCP)
Design Notes
- Rail sequencing order and delay are part of the SoC power-up contract; a wrong order latches the processor even though every rail is in spec.
- In multiphase designs, current balance depends on the loop matching between phases, so keep the layout symmetric.
- Digital interfaces (PMBus, I²C) need pull-ups to the correct rail and a defined state during power-up.
- Thermal design is a system problem here: the PMIC sits next to the load it feeds, so budget the shared copper, not the package alone.
Common Questions
What input voltage does the MP5402 support?
7 V to 36 V. The rated output is 5 A.
Which package and ordering codes apply to the MP5402?
QFN-26; order codes include MP5402.
What are the defining features of the MP5402?
Wide 7V to 36V Operating Input Voltage Range Fixed 5V Output Voltage with Line Drop Compensation
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