XC9235C33CER-G

The XC9235 series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42O P-channel MOS driver transistor and 0.52ON-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Operating voltage range is from 2.0V to 6.0V (A-C types). The A type have a fixed output voltage of 1.8V (accuracy: ±2.0%). The device provides a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally. With the built-in oscillator, 1.2MHz to be selected for suiting to your particular application. As for operation mode, the XC9235 series is PWM control, allowing fast response, low ripple and high efficiency over the full range of loads (from light load to heavy load).

The soft start and current control functions are internally optimized. During stand-by, all circuits are shutdown to reduce current consumption to as low as 1.0µA or less. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF when input voltage becomes 1.4V or lower. When the devices enter stand-by mode, output voltage quickly returns to the VSS level as a result of this function. Four types of package SOT-25, USP-6C, USP-6EL and WLP-5-03 are available.

• Driver Transistor Built-In0.42O P-ch driver transistor 0.52O N-ch switch transistor
• Input voltage: 2.0V-6.0V (A/B/C types) 1.8V-6.0V (D/E/F/G types)
• Output voltage 0.8V-4.0V (Internally set)0.9V-6.0V (Externally set)
• High Efficiency: 92% (TYP.)
• Output current: 600mA
• Oscillation Frequency: 1.2MHz, 3.0MHz (+15%)
• Maximum Duty Cycle: 100%
• Control Methods: PWM (XC9235)
• Function current Limiter Circuit Built-In (Constant current & Latching)CL Discharge (B/C/D/E/F/G types)High Speed Soft Start (B/F/G type)
• Capacitor: Low ESR Ceramic Capacitor
• Operating Ambient Temperature: -40°C to 85°C
• Packages: SOT-25 (A/B/C types only)USP-6CUSP-6EL(A/B/C types only)WLP-5-03(A/B types only)
• Environmentally Friendly: EU Rohs Compliant, Pb Free.