Controllers | NCV8856A
概览
The NCV8856A is an adjustable output, synchronous buck controller, which drives dual N−channel MOSFETs - ideal for high
power applications. Average current mode control is employed for very fast transient response and tight regulation over wide input voltage and output load ranges. An internal fixed 6.0 V low−dropout linear regulator (LDO) supplies charge to the switch mode power supply’s (SMPS) top and bottom gate drivers, limiting the power lost to excess gate drive. The IC is designed for operation over an input voltage range of 4.5 V to 38 V and is capable of 10 to 1 voltage conversion at 500 kHz.
- Automotive Systems Requiring a High Current Power Supply.
- Pre-regulated Supply for Low-voltage SMPSs and LDOs.
- Radio and Infotainment
- Instrumentation and Clusters
- Telematics
- Body Electronics
- Navigation
- Automotive
- Average Current Mode
- 0.8 V Reference Voltage
- +/-2% Output Voltage Accuracy over temperature
- 4.5 V to 38 V Input Range
- Input Undervoltage Lockout
- Low Quiescent Current in Sleep Mode
- Internally controlled soft-start
- Programmable Switching Frequency up to 500kHz
- Switching Frequency can be Synchronized up to 600kHz
- Average Output Current Limiting
- Peak Output Current Limiting
- 6.0 V Low-dropout Linear Regulator Auxiliary Output
- -40 °C to 150 °C Operating Junction Temperature
- Thermal Shutdown Protection
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