NCV47551DAJR2G ON Semiconductor

NCV47551 LDO Regulator - Adjustable, Low Noise, Adjustable Current 3.3 V to 20 V NCV47551 V V in out V REF1 VOLTAGE V NR REF2 I = I CSO out REFERENCE (Ratio 1:1) PASS DEVICE AND CURRENT MIRROR ENABLE EN SATURATION SP PROTECTION THERMAL TSD SHUTDOWN V REF2 + 2.55 V NOISE NR NR CSO REDUCTION SP V REF1 + 1.265 V GND ADJ TSD Figure 2. Simplified Block Diagram 18 ADJ V out GND NC NR EN CSO V in SOIC8 Figure 3. Pin Connections (Top View) PIN FUNCTION DESCRIPTION Pin No. SOIC8 Pin Name Description 1 ADJ Adjustable Voltage Setting Input. See Application Section for more details. 2 GND Power Supply Ground. 3 EN Enable Input low level disables the IC. 4 CSO Current Sense Output, Current Limit setting and Output Current value information. See Application Section for more details. 5 V Positive Power Supply Input. in 6 NR Noise Reduction Input. Connect either external capacitor for decreasing noise or must be left unconnected. 7 NC Not Connected. 8 V Regulated Output Voltage. out