NCP339AFCT2G ON Semiconductor

NCP339 3 A Ultra-Small Controlled Load Switch with Auto-Discharge Path and Reverse Current Control NCP339 VCC V+ LS NCP339 DCDC Converter A2 A1 SMPS IN OUT Platform ICn B2 B1 or LDO IN OUT C2 EN 100n 1 F ENy ENx 0 LS Platform ICn+1 Figure 1. Typical Application Circuit Table 1. PIN FUNCTION DESCRIPTION Pin Name Pin Number Type Description IN A2, B2 POWER Load-switch input voltage connect a 1 F or greater ceramic capacitor from IN to GND as close as possible to the IC. GND C1 POWER Ground connection. EN C2 INPUT Enable input, logic high turns on power switch. OUT A1, B1 OUTPUT Load-switch output connect a 100 nF ceramic capacitor from OUT to GND as close as possible to the IC is recommended. IN: pin A2, B2 OUT: pin A1, B1 Gate driver and soft start control Control logic Optional EN: C2 EN block 7M GND: C1 Figure 2. Block Diagram