LDO Regulator, 150 mA, 38 V, 1 A I , with PG Q NCP730 The NCP730 device is based on unique combination of features very low quiescent current, fast transient response and high input and output voltage ranges. The NCP730 is CMOS LDO regulator designed www.onsemi.com for up to 38 V input voltage and 150 mA output current. Quiescent current of only 1 A makes this device ideal solution for battery powered, alwayson systems. Several fixed output voltage versions MARKING DIAGRAMS are available as well as the adjustable version. The device (version B) implements power good circuit (PG) which 5 TSOP5 indicates that output voltage is in regulation. This signal could be used XXXAYW SN SUFFIX 5 for power sequencing or as a microcontroller reset. CASE 483 1 Internal short circuit and over temperature protections saves the 1 device against overload conditions. XXX = Specific Device Code A = Assembly Location Features Y = Year Operating Input Voltage Range: 2.7 V to 38 V W = Work Week = PbFree Package Output Voltage: 1.2 V to 24 V (Note: Microdot may be in either location) Capable of Sourcing 200 mA Peak Output Current WDFN6 (2x2) 1 Very Low Quiescent Current: 1 A typ. MT SUFFIX XX M Low Dropout: 290 mV typ. at 150 mA, 3.3 V Version CASE 511BR Output Voltage Accuracy 1% 1 XX = Specific Device Code Power Good Output (Version B) M = Date Code Stable with Small 1 F Ceramic Capacitors Builtin Soft Start Circuit to Suppress Inrush Current PIN ASSIGNMENTS OverCurrent and Thermal Shutdown Protections TSOP5 Available in Small TSOP5 and WDFN6 (2x2) Packages IN 5 1 OUT These Devices are PbFree and are RoHS Compliant GND 2 Typical Applications 4 EN NC/ADJ/PG 3 Battery Power Tools and Equipment CASE 483 Home Automation RF Devices WDFN6 (2x2) Metering OUT 1 6 IN Remote Control Devices NC/ADJ 2 EP 5 NC/PG White Goods GND 3 4 EN CASE511BR (Top Views) ORDERING INFORMATION See detailed ordering and shipping information on page 29 of this data sheet. Semiconductor Components Industries, LLC, 2018 1 Publication Order Number: March, 2021 Rev. 1 NCP730/DNCP730 TYPICAL APPLICATION SCHEMATICS V VOUT=5V VIN=638V VOUT=5.0V IN=638V IN OUT IN OUT C CIN COUT C OUT IN NCP730A ADJ NCP730A 5.0V R1 C FF 1 F 1 F 1 F 1 F 2M4 1nF TSOP5 / WDFN6 TSOP5 / WDFN6 ON ON 1.2V EN ADJ EN NC GND GND OFF OFF R2 750k Figure 1. Fixed Output Voltage Application (No PG) Figure 2. Adjustable Output Voltage Application (No PG) VIN=638V VOUT=5.0V VIN=638V VOUT=5V IN IN OUT OUT CIN C COUT OUT C IN R1 CFF NCP730B ADJ 1 F NCP730B 5.0V 1 F 1 F 1 F 2M4 1nF R PG TSOP5 / WDFN6 Only WDFN6 100k 1.2V NC ADJ RPG ON ON 100k EN PG PG EN PG R2 GND GND 750k OFF OFF PG Figure 3. Fixed Output Voltage Application with PG Figure 4. Adjustable Output Voltage Application with PG R 1 V V 1 I R OUT ADJ ADJ 1 R 2 IN OUT UVLO Comparator UVLO 1.95 V V V REF CCEN 1.2V VREFERENCE EA AND SOFTSTART R ADJ1 V =1.2V FB EN ADJ Enable R ADJ2 EN Comparator GND THERMAL 0.9 V SHUTDOWN PG PG Comparator DEGLITCH NC DELAY TMR 93% of V REF Blue objects are valid for ADJ version Note: Green objects are valid for FIX version Brown objects are valid for B version (with PG) Figure 5. Internal Block Diagram www.onsemi.com 2 I = 300nA ENPU Current limit