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APW9105
Active
6A, 18V, 600kHz Synchronous Step-Down Converter
Features
- N-CH MOSFET: 20mΩ for Low Side
General Description
The APW9105 is a high efficiency synchronous buck converter with integrated 40m/20mΩ of upper/lower power MOSFET and offers 6A continuous current capability. This part is part of the family of converters with a proprietary ANPEC System Phase Shift (ASP) method that allows multiple converters to be daisy chained together while being able to synchronize to an external clock, allowing for a much reduced system noise performance. The ASP pin of the APW9105 can output a synchronized clock to the external clock with a slight phase delay to the next converter such that next converter will not turn on at the same time. Another feature of this part is its ability to automatically optimize its BW (DyncBandwidth) to allow better dynamic response once it is synchronized to a higher external clock. The APW9105 uses a peak current mode control scheme to regulate the output voltage. The internal switching frequency is set at 600kHz while the EN/SYNC pin supports external clock synchronization. The APW9105 also equips a technique: SpeedTransTM, which allows improving transient response without complex external compensation circuits design. VDD bypass pin allows for an external 5V supply to power the internal control circuitry thereby reducing overall system power consumption for better efficiency especially at light load conditions. And PM selection, It can improve the efficiency when the load is light. The APW9105 is also equipped with Power-on-reset, soft start, and complete protections, over-temperature, overvoltage, under-voltage and over-current of the converter The APW9105 is offered in a TQFN3x2-14 package allowing small size while having an excellent thermal capability for power dissipation.
Features
- Input Voltage range : 4.5V to 18V
- 6A Output Current
- ANPEC System Phase Shift (ASP) function Reduces System Noise by Daisy Chaining Converter with Phase Shift
- Typical 0.6V ±1% Internal Reference Voltage
- Optimized Upper and Lower MOSFETs RDS_on for max Efficiency :
- N-CH MOSFET: 20mΩ for Low Side
- VDD Bypass Function allows for External 5V supply
- Mode Pin allows for Forced PWM or Automatic PSM/PWM mode
- Built in OVP, UVP, Current Limit and OTP
- Low Cost TQFN3x2-14 package
- Lead Free and Green Devices Available (RoHS Compliant)
- DyncBandwidthTM Technology
- SpeedTransTM Technology
General Description
The APW9105 is a high efficiency synchronous buck converter with integrated 40m/20mΩ of upper/lower power MOSFET and offers 6A continuous current capability. This part is part of the family of converters with a proprietary ANPEC System Phase Shift (ASP) method that allows multiple converters to be daisy chained together while being able to synchronize to an external clock, allowing for a much reduced system noise performance. The ASP pin of the APW9105 can output a synchronized clock to the external clock with a slight phase delay to the next converter such that next converter will not turn on at the same time. Another feature of this part is its ability to automatically optimize its BW (DyncBandwidth) to allow better dynamic response once it is synchronized to a higher external clock. The APW9105 uses a peak current mode control scheme to regulate the output voltage. The internal switching frequency is set at 600kHz while the EN/SYNC pin supports external clock synchronization. The APW9105 also equips a technique: SpeedTransTM, which allows improving transient response without complex external compensation circuits design. VDD bypass pin allows for an external 5V supply to power the internal control circuitry thereby reducing overall system power consumption for better efficiency especially at light load conditions. And PM selection, It can improve the efficiency when the load is light. The APW9105 is also equipped with Power-on-reset, soft start, and complete protections, over-temperature, overvoltage, under-voltage and over-current of the converter The APW9105 is offered in a TQFN3x2-14 package allowing small size while having an excellent thermal capability for power dissipation.
