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IK3301

IK Semicon
Part Number IK3301
Manufacturer IK Semicon
Description Triple DC to DC Converter Control IC
Published May 14, 2010
Detailed Description IK3301 Triple DC to DC Converter Control IC for CCD Image sensor DESCRIPTION IK3301 is to be used as power supply contro...
Datasheet PDF File IK3301 PDF File

IK3301
IK3301

Overview
IK3301 Triple DC to DC Converter Control IC for CCD Image sensor DESCRIPTION IK3301 is to be used as power supply control IC for the system that is based on CCD image sensor.
IK3301 supplies all the voltages that are needed to operate CCD image sensor, 15V, 5V and –8V, with excellently controlled ripple voltage.
The typical power efficiency of this device is 80% at a standard load current.
Due to the high power efficiency, the heat dissipation is suppressed, which can be fatal to the image quality of CCD sensor.
Excellent voltage ripple and suppressed heat dissipation will be very beneficial for the CCD system that needs high image quality.
www.
DataSheet4U.
com FEATURES • Built-in 3-Channel Voltage Output Option : 15V / 5.
0V / -8V, 12V / 3.
3V / -8V • PWM Method • High Power Efficiency (80%) • Low Heat Dissipation • 9~18V Wide Operating Voltage • Very Low Ripple Voltage Noise (less than 20mV) • High Driving Current (300mA@Vout 3.
3V or 5.
0V) • Small Package Size :16pin MLP (QFN) • Simple and Low Cost External Circuit • Built-in Protection Circuit for External Damage APPLICATION • B/W CCD Camera System • Color CCD Camera System • Other CCD Image Sensor Power Supply 1 Rev.
01 IK3301 General Description Figure 1 shows the simplified block diagram of IK3301.
The device consists of two highly efficient DC-DC converters, a negative charge pump, clock generator to supply clock signals to each circuit and reference voltage generator.
The 15V supply voltage is generated by UP voltage converter, which utilizes one external inductor, one external capacitor and two external diodes.
The internal comparator continuously monitors the output voltage and adjusts it to 15V by controlling PWM (Pulse Width Modulation) circuit.
The 5V supply voltage is generated by DOWN voltage converter, which utilizes one external inductor, one PFET switch, one external capacitor and one external diode.
The internal comparator continuously monitors the output voltage and adjusts it to 5V by controll...


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