DATA SHEET www.onsemi.com Linear Regulator - Dual-Rail, Very Low-Dropout, QFN20 DFN10 WLCSP10 CASE 485DB CASE 485C CASE 567ZC Programmable Soft-Start MARKING DIAGRAMS 3.0 A 1 1 NCP NCP59744 NCP59744 59744 AWLYYWW AYW The NCP59744 is dualrail very low dropout voltage regulator that is capable of providing an output current in excess of 3.0 A with a QFN20 DFN10 dropout voltage of 75 mV typ. at full load current. The devices are stable with ceramic and other low ESR output capacitors. This series 59744 contains adjustable output voltage version with output voltage down ALYWW to 0.8 V. Internal protection features consist of builtin thermal shutdown and output current limiting protection. Userprogrammable WLCSP10 SoftStart and Power Good pins are available. The NCP59744 is A = Assembly Location offered in DFN10 3x3, QFN20 5x5 and WLCSP10 packages. WL = Wafer Lot YY, Y = Year Features WW, W = Work Week Output Current in Excess of 3.0 A = Pb-Free Package 0.25% Typical Accuracy Over Line and Load (Note: Microdot may be in either location) V Range: 0.8 V to 5.5 V IN V Range: 2.2 V to 5.5 V BIAS ORDERING INFORMATION Output Voltage Range: 0.8 V to 3.6 V See detailed ordering, marking and shipping information on Dropout Voltage: 75 mV at 3 A page 13 of this data sheet. Programmable Soft Start Open Drain Power Good Output Excellent Transient Response Current Limit and Thermal Shutdown Protection These Devices are PbFree and are RoHS Compliant Applications Telecom and Industrial Equipment Point of Load Regulation FPGA, DSP and Logic Power Supplies Switching Power Supply Post Regulation Applications with Specific Startup Time or Sequencing Requirements NCP59744 Figure 1. Typical Application Schematic Semiconductor Components Industries, LLC, 2015 1 Publication Order Number: January, 2022 Rev. 7 NCP59744/DNCP59744 OUT A1 A2 IN 5 4 3 2 1 OUT B1 B2 IN 6 20 IN OUT 7 19 OUT IN 8 18 C1 C2 IN GND OUT FB PG IN 1 10 OUT 9 17 PG NC IN 2 9 OUT BIAS 10 16 FB SS D1 D2 BIAS Thermal 11 12 13 14 15 3 8 PG FB Pad 4 7 BIAS SS E1 E2 EN GND EN 5 6 GND QFN205 50.65P DFN103 30.5P WLCSP10 (Top View) (Top View) (Top View) Figure 2. Pin Connections Figure 3. Simplified Schematic Block Diagram www.onsemi.com 2 EN IN GND NC NC NC NC NC SS OUT