XC9207 series

Please note that for new designs, we recommend the synchronous step-down XC9235/36/37 Series.

High Frequency Step-down DC/DC Converter

• XC9206 PWM Control
• XC9207 PWM/PFM auto-switching
• XC9208 PWM/PFM manual control

The XC9206/07/08 series is a family of DC/DC converters with built in 0.4 Ohm P-channel driver transistor for high efficiency operation at output currents up to 500mA. With switching frequencies up to 1.2MHz, small external parts can be used and the XC9206/7/8 is fully compatible with ceramic capacitors.

The designer can choose between fixed PWM operation (XC9206), PWM/PFM auto-switching (XC9207) and PWM/ PFM manual switching (XC9208). The switching operation for the XC9208 is manually controlled using the CE/MODE pin.

Offering fast response, ultra low output ripple and high efficiencies over the full range of output loads, the XC9206/07/08 series is ideal for a wide range of applications.

Please note that for new designs, we recommend the synchronous step-down XC9235/36/37 Series.

Features:

• Input Voltage: 1.8V ~ 6.0V
• Output Voltage: 0.9V ~ 4.0V
  (0.1V steps)
• Output current: 500mA
• Oscillator Frequency: 300KHz,
  600kHz or 1.2MHz
• Built-in current limit and soft start
  circuit
• Small SOT23-5 package
• Compatible with ceramic capacitors
• Standby current: 0.5μA (max)
• U.V.L.O

Packages: SOT-25 , USP-6B