LTC1477CS8#PBF

LTC1477 is a protected high side switch. It provides extremely low RDS(ON) switching with built-in protection against short-circuit and thermal overload conditions. A built-in charge pump generates gate drive higher than the supply voltage to fully enhance the internal NMOS switch. This switch has no parasitic body diode and therefore no current flows through the switch when it is turned off and the output is forced above the input supply voltage. Two levels of protection are provided by the device. The first level of protection is short-circuit current limit which is set at 2A. The second level of protection is provided by thermal overload protection which limits the die temperature to approximately 130°C. It is used in applications such as notebook computer power management, power supply/load protection, supply/battery switch-over circuits, circuit breaker function, "Hot Swap" board protection, peripheral power protection etc.

• ON resistance is 0.07 ohm typ at (VINS = VIN1 = VIN2 = VIN3 = 5V, IOUT = 1A)
• No parasitic body diode, built-in short-circuit protection is 2A
• Built-in thermal overload protection
• Operating voltage range is 2.7V to 5.5V
• Inrush current limited
• Built-in charge pump
• Ultralow standby current is 0.01µA typ at (switch OFF, enable = 0V, TA = 25°C)
• Controlled rise and fall time is 1ms typ at (ROUT = 100 ohm, COUT = 1µF, to 90% of final value)
• Operating temperature is 0°C to 70°C
• Package style is 8-lead NSOIC

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