Features: ` Constant high frequency (2MHz) operation
` 100mA output current
` Regulated output voltage (5V fixed CAT3200-5, Adjustable CAT3200)
` Low quiescent current (1.7mA typ.)
` Input voltage operation down to 2.7V
` Soft start, slew rate control
` Thermal overload shutdown protection
` Low value external capacitors (1F)
` Foldback current overload protection
` Shutdown current less than 1A
` CAT3200-5 in low profile (1mm thin) 6-lead SOT23 package
` CAT3200 in MSOP-8 packageApplication· 3V to 5V boost conversion
· White LED driver
· USB On-The-Go 5V supply
· Local 5V supply from lower rail
· Battery backup systems
· Handheld portable devicesPinout
Description
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 5V output. The CAT3200 has an adjustable output using external resistors. The constant frequency 2MHz charge pump allows small 1F ceramic capacitors to be used.
CAT3200-5 Maximum output loads of up to 100mA can be supported over a wide range of input supply voltages (2.7V to 4.5V) making the device ideal for battery-powered applications.
CAT3200-5 shutdown control input allows the device to be placed in power-down mode, reducing the supply current to less than 1A.
In the event of short circuit or overload conditions, CAT3200-5 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.
The CAT3200-5 is available in a 6-lead, 1mm max thin SOT23 package. The CAT3200 is available in an 8-lead MSOP package.
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 5V output. The CAT3200 has an adjustable output using external resistors. The constant frequency 2MHz charge pump allows small 1F ceramic capacitors to be used.
CAT3200-5 Maximum output loads of up to 100mA can be supported over a wide range of input supply voltages (2.7V to 4.5V) making the device ideal for batterypowered applications.
A shutdown control input allows CAT3200-5 to be placed in power-down mode, reducing the supply current to less than 1A.
In the event of short circuit or overload conditions, CAT3200-5 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.
The CAT3200-5 is available in a 6-lead, 1mm max thin SOT23 package. The CAT3200 is available in an 8-lead MSOP package.
CAT3200-5 Data Sheet
