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MP3433GQ-Z 2.8-17V, 20A, 600kHz Synchronous Boost Converter QFN-16
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pMPS MP3433GQ-Z — Synchronous Boost Converter, 2.8-17V input, 20 A output, QFN-16./p
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MP3433GQ-Z 2.8-17V, 20A, 600kHz Synchronous Boost Converter QFN-16
The MPS MP3433GQ-Z is a Synchronous Boost Converter. It operates from a 2.8 V to 17 V input, is rated for 20 A and switches at 600 kHz. It is supplied in a QFN-16 package.
The MP3433 is a 600kHz fixed-frequency, wide input voltage (VIN) range, highly integrated boost converter.
Key Specifications
| Part Number | MP3433GQ-Z |
| Function | Synchronous Boost Converter |
| Input Voltage | 2.8 V to 17 V |
| Output Voltage | 22 V |
| Current Rating | 20 A |
| Switching Frequency | 600 kHz |
| Peak Efficiency | 95% |
| Package | QFN-16 |
| Ordering Codes | MP3433GQ-Z |
Features
- 2.8V to 17V Start-Up Voltage (VST)
- 0.8V to 17V Operating Input Voltage (VIN)
- Up to 22V Output Voltage (VOUT)
- Supports 30W or 50W Load Power from a 1-Cell or 2-Cell Battery, Respectively
- Configurable Input Current (IIN) Limit
- 20A Switching Current Limit (IPK_LIMIT)
- Integrated 6mΩ and 9mΩ Power MOSFETs
- >95% Efficiency for 6.6V VIN to 16V/50W
- >20kHz Ultrasonic Mode (USM) under Light-Load Conditions
- 600kHz Fixed Switching Frequency (fSW)
Typical Application Circuit
Applications
- Notebooks
- Bluetooth Speakers
- Portable Point-of-Sale (POS) Systems
Design Notes
- Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
- The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
- Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
- Route the feedback divider from the output capacitor terminals, away from the switch node.
Common Questions
What input voltage does the MP3433GQ-Z support?
2.8 V to 17 V. The rated output is 20 A.
Which package and ordering codes apply to the MP3433GQ-Z?
QFN-16; order codes include MP3433GQ-Z.
What are the defining features of the MP3433GQ-Z?
2.8V to 17V Start-Up Voltage (VST) 0.8V to 17V Operating Input Voltage (VIN)
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