Original, special price MPQ8633A 16V, 12A, synchronous buck converter with adjustable current limit, programmable frequency and voltage tracking

Description

The MPQ8633A is a fully integrated high frequency synchronous buck converter. The MPQ8633A operates efficiently over a wide output current load range. The MPQ8633A uses a constant on-time control mode (COT) with internal compensation to provide fast transient response and easy loop stabilization. The MPQ8633A's operating frequency can be easily set to 600kHz, 800kHz, or 1000kHz through the operating mode configuration, and remains constant regardless of the input and output voltages.

The output voltage start-up ramp is controlled by an internal 1ms timer. The ramp rate can be increased by adding capacitors to TRK/REF. The output indication (PG) pin of the open-drain structure indicates whether the output voltage is within normal range. When the input supply is not available to the MPQ8633A, the PGOOD has an external pull-up voltage and is clamped at approximately 0.7V. Fully integrated protection features include overcurrent protection (OCP), overvoltage protection (OVP), undervoltage protection (UVP), and overtemperature protection (OTP). The MPQ8633A minimizes the use of existing standard external components and is available in a QFN 3mmx4mm package.

Features

- Wide input voltage range, 2.7V minimum - 2.7V to 16V, external 3.3V bias
- 4V to 16V, internal bias or external 3.3V bias

- Differential output voltage remote sampling
- Programmable precision current limit function
- 12A output current
- Low on-state impedance integrated power MOSFET
- Proprietary switching loss reduction technology
- Adaptive constant on-time (COT) control for ultra-fast transient response
- Stable operation with Zero-ESR output capacitors
- Reference voltage accuracy of 0.5% over 0°C to +70°C junction temperature range
- Reference voltage accuracy of 1% over the -40°C to +125°C junction temperature range
- Selectable frequency hopping mode or forced continuous conduction mode (FCCM)
- Excellent load regulation
- Output voltage tracking function
- Output voltage discharge function
- PGOOD active clamp at low levels when power is not available
- Programmable soft-start time down to 1ms
- Pre-biased start-up
- Selectable switch frequencies: 600kHz, 800kHz and 1000kHz
- Non-Latching Overcurrent Protection (OCP), Undervoltage Protection (UVP), Undervoltage Lockout Protection (UVLO), Overtemperature Shutdown Protection and Non-Latching Overvoltage Protection
- Adjustable output voltage range: 0.6 V to 90%*Vin, up to 5.5 V
- Available in QFN 3mm x 4mm package

• FAQ
  Q. Who are you?
  A: We are a professional supplier of electronic components from China. Like new and original integrated circuits, Also provide BOM full service .
  
  Q. Are your products original?
  A: Yes, all products are original, new original import is our purpose .
  
  Q. What is your lead time?
  A: The product is sent within 3 days after the confirmation of payment, and the delivery time is 3 to 6 days .
  
  Q. What is your warranty?
  A: 60 days after goods have been received. Our products will be 100% tested before they are sent out. If the goods are defective, please notify us within 3 days after delivery. Any item must be returned as is in order to qualify for a refund or payment. The buyer is responsible for all shipping costs incurred.
  
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  A: MOQ is 1 pcs .
  
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  A: We will use DHL,TNT,FedEx,EMS,DEPX(3-6 days lead time) to ship your package.
  
  
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