CAT3200: Regulated Charge Pump, Low Noise, DC-DC Converter

The CAT3200 and CAT3200-5 are switched capacitor boost converters that deliver a low noise, regulated output voltage. The CAT3200-5 gives a fixed regulated 5.0 V output. The CAT3200 has an adjustable output using external resistors. The constant frequency 2.0 MHz charge pump allows small 1.0 µF ceramic capacitors to be used.Maximum output loads of up to 100 mA can be supported over a wide range of input supply voltages (2.7 V to 4.5 V), making the device ideal for battery-powered applications.A shutdown control input allows the device to be placed in power-down mode, reducing the supply current to less than 1.0 µA.In the event of short circuit or overload conditions, the device is fully protected by both foldback current limiting and thermal overload detection. In addition, a soft start, slew rate control circuit limits inrush current during power up.

特性
  • Constant high frequency (2.0 MHz) operation
  • 100 mA output current
  • Regulated output voltage (5.0 V fixed CAT3200-5, Adjustable CAT3200)
  • Low quiescent current (1.7 mA typ.)
  • Input voltage operation down to 2.7 V
  • Soft start, slew rate control
  • Thermal overload shutdown protection
  • Low value external capacitors (1.0 µF)
  • Foldback current overload protection
  • Shutdown current less than 1.0 µA
应用
  • 3.0 V to 5.0 V boost conversion
  • White LED driver
  • USB On-The-Go 5.0 V supply
  • Local 5.0 V supply from lower rail
  • Battery backup systems
  • Handheld portable devices
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Regulated Charge Pump, Low Noise, DC-DC ConverterCAT3200/D (134kB)16Apr, 2014
封装图纸 (2)
Document TitleDocument ID/SizeRevision
MSOP 8, 3x3846AD (56.5kB)revo
TSOT-23, 6 Lead419AF (54.5kB)revo
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
CAT3200TDI-GT3ActivePb-free Halide freeTSOT-23-6419AF1Tape and Reel3000$0.6
CAT3200ZI-GT3Last ShipmentsPb-free Halide freeMSOP-8846AD1Tape and Reel3000
订购产品技术参数
ProductVin Typ (V)Vout Typ (V)Iout Typ (mA)ICC Max (µA)fOSC Typ (kHz)Shutdown Pin
CAT3200TDI-GT32.7 to 4.5510040002000Yes
Regulated Charge Pump, Low Noise, DC-DC Converter (134kB) CAT3200
TSOT-23, 6 Lead CAT3200
MSOP 8, 3x3 CAT25010