CAT6242-330MT5T3 ON Semiconductor

CAT6242 1.3 Amp CMOS LDO Voltage Regulator Description The CAT6242 is a low dropout CMOS voltage regulator providing up to 1300 mA of output current with fast response to load current and CAT6242 VIN VIN VOUT VOUT C SENSE IN 1 F CAT6242 C OUT 2.2 F ENABLE BYP GND C BYP (Optional) Figure 1. Application Schematic VOUT VIN I SENSE SENSE Thermal Shutdown + NC 2.5 M + BYP Enable V REF EN Logic GND Figure 2. Simplified Block Diagram Table 1. PIN FUNCTION DESCRIPTION Pin WDFN6 Pin Name Description 1 EN The Enable Input. An active HIGH input, turning ON the LDO. A pullup 2.5 M resistor maintains the circuit in the ON state if the pin is left open. 2, Pad GND Power Supply Ground Device Substrate. The center pad is internally connected to Ground and as such can cause short circuits to signal traces running beneath the IC. This pad is intended for heat sinking the IC to the PCB and is typically connected to the PCB ground plane. 3 BYP Bypass input. Placing a capacitor of 100 pF to 470 pF between BYP and ground reduces noise on V This capacitor is optional and it increases the turn on time. OUT. 4 V Regulated Output Voltage. A protection block eliminates any current flow from output to input if V OUT OUT > V . IN 5 SENSE SENSE is the sense input of the circuit and is connected externally to the VOUT line. 6 V Positive Power Supply Input. Supplies power for V as well as the regulators internal circuitry. IN OUT