XC6376 series

Step-Down DC/DC Converter

The XC6376/77 series are step-down DC/DC converters with built-in P-Channel power MOSFETs. A highly efficient DC/DC converter with output currents of 500mA can be realised using only four peripherals - a coil, a diode and 2 capacitors.

Output voltage can be internally set-up in 0.1V increments (±2.5%) between 1.5V and 6.0V (VOUT type). Alternatively, output voltage can be set-up at will using a 1.0V internal reference voltage source and peripherals (FB type). It is possible to reduce the size of the peripherals used since the switching frequency is 300kHz.

The XC6376 operates in PWM mode maintains high efficiency for larger output currents. The required soft start time can be set-up using an the external capacitor and the stand-by function reduces supply current to less than 2.5uA. U.V.L.O and protection are also built-in.

Features:

  • Input Voltage: 1.8V ~ 10.0V
  • Output Voltage: 1.5V ~ 6.0V
  • Switching Frequency: 180kHz, 300kHz or 500kHz
  • Standby Current: 2.5μA (max)
  • Soft Start externally set-up   
  • PWM, PWM/PFM switching control

Package: SOP-8

PropertyXC6376XC6376XC6376
TypeStep-DownStep-DownStep-Down
ControlPWMPWMPWM
MOSFETInternalInternalInternal
Typical Efficiency (%)959595
Min Operating Voltage (V)1.81.81.8
Max Operating Voltage (V)101010
Min Output Voltage (V)1.51.51.5
Max Output Voltage (V)666
Accuracy (%)2.52.52.5
Min Switching Frequency (kHz)180300500
Max Switching Frequency (kHz)180300500
Built-In Voltage DetectorNoNoNo
Built-In Voltage RegulatorNoNoNo
Max Output Current (mA)500500500
Quiescent Current (uA)N/AN/AN/A
PackagesSOP-8SOP-8SOP-8