Kp522201a adopts SOT23-6 encapsulated 4.5V to 17V input, 2A output, 600kHz synchronous step-down converter

KP52220XA

use  SOT23-6 Packaged 4.5V to 17V Input 、2A Output 、600kHz Synchronous buck converter

KP522201A/08A It's a simple and easy to use 、 Efficient integrated synchronous buck converter . It has 4.5V To 17V Wide input voltage range , Well suited to 12V and 15V And other common input voltage rails . It supports up to 2A Continuous output current , The output voltage range is 0.768V to 7V. KP522201A Light load operates in pulse frequency modulation mode (PFM) To maintain high light load efficiency ;KP522208A Working in forced pulse width modulation mode (FPWM) To achieve fixed switching frequency and low output ripple under full load current . KP522201A/08A Integrated with perfect protection functions , Including input undervoltage protection (UVLO), Cycle by cycle valley bottom current limiting protection (OCL), Output undervoltage belch protection (UVP), Output overvoltage protection (OVP) And over temperature protection (OTP), To ensure that it remains safe under different working conditions 、 Reliable operation . KP522201A/08A Use small size SOT23-6 encapsulation , The operating junction temperature range is -40℃ To 125℃.

characteristic

FAE :13530009832

The main features

•  Wide input voltage range ：4.5V to 17V •  Output voltage range ：0.768V to 7V •  Support  2A Continuous output current •  Inductive current continuous mode  600kHz Switching frequency of •  Internally integrated low on resistance MOSFET Switch tube •  Low quiescent operating current ：190μA ( No switch action , Typical values ) •  Low off current ：2.5μA ( Typical values ) •  Ultra fast dynamic response is achieved by constant on time control •  Two light load operation modes ： •  KP522201A： Pulse frequency modulation mode (PFM) •  KP522208A： Forced PWM mode (FPWM) •  High reference voltage accuracy ：0.768V ±1.0% @25℃

•  Integrated protection functions ： •  Precise enable control and adjustable undervoltage locking function •  Inside  1ms Soft start time , Avoid overshoot voltage and current •  Cycle by cycle valley bottom current limiting protection  (OCL) •  Non latching input undervoltage protection  (UVLO)、 Output under voltage protection (UVP)、     Output overvoltage protection (OVP) And over temperature protection (OTP) •  Compact solution size ： •  Support use  MLCC Ceramic capacitor , It also supports low output capacitance •  No external compensation is required •  Small package type ：SOT23-6

Typical applications

•  The set-top box , digital television    •  Home networking devices    •  Security monitoring equipment    •  Smart sound    •  Electronics  POS machine    •  Other general purpose power applications

Typical application circuits		Pin encapsulation