CAT6241-ADJHU2MUTAG ON Semiconductor

CAT6241 1 Amp Adjustable CMOS LDO Voltage Regulator Description The CAT6241 is a low dropout CMOS voltage regulator providing up to 1000 mA of output current with fast response to load current and CAT6241 VIN VIN VOUT VOUT ENABLE C C OUT IN CAT6241 2.2 F 1 F BYP ADJ GND C BYP (Optional) Figure 1. Application Schematic VIN VOUT VOUT VIN I SENSE Thermal Shutdown + ADJ + BYP Enable V REF EN Logic 2.5 M GND Figure 2. Simplified Block Diagram Table 1. PIN FUNCTION DESCRIPTION Pin # Pin # WDFN6 UDFN 8 Pin Name Description 1 4 EN The Enable Input. An active HIGH input, turning ON the LDO. This input should be tied to V if the LDO is not intended to be shut off during normal operation. A pulldown 2.5 M IN resistor maintains the circuit in the OFF state if the pin is left open. 2, PAD 3, 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 5 BYP Bypass input. Placing a capacitor of 100 pF to 470 pF between BYP and ground reduces noise on V This capacitor is optional. OUT. 4 7, 8 V Regulated Output Voltage. A protection block eliminates any current flow from output to OUT input if V > V . Connect both pins for specified dropout performance. OUT IN 5 6 ADJ Output Voltage Adjust Input. This input ties to the common point of a resistor divider which determines the regulators output voltage. See Applications section for details on selecting resistor values. 6 1, 2 V Positive Power Supply Input. Supplies power for V as well as the regulators internal IN OUT circuitry. Connect both pins for specified dropout performance.