NCP4683 300 mA, Low Dropout Regulator The NCP4683 is a CMOS Linear voltage regulator with 300 mA output current capability. The device has high output voltage accuracy, low supply current and high ripple rejection. The NCP4683 is easy to www.onsemi.com www.onsemi.com use, with output current foldback protection circuit included. A Chip Enable function is included to save power by lowering supply current. MARKING The line and load transient responses are very good, thus this regulator DIAGRAMS is suitable for use as a power supply for communication equipment. Features XXX Operating Input Voltage Range: 1.40 V to 5.25 V M SOT235 Output Voltage Range: 0.8 V to 3.6 V (available in 0.1 V steps) CASE 1212 Output Voltage Accuracy: 1.0% (V > 2.0 V) OUT Supply Current: 50 A Dropout Voltage: 0.25 V (I = 300 mA, V = 2.8 V) OUT OUT XXX High PSRR: 70 dB (f = 1 kHz) XMM SC70 Line Regulation: 0.02%/V Typ. CASE 419A Stable with Ceramic Capacitors: 1.0 F or more Current Fold Back Protection Available in UDFN4 1.0 x 1.0 mm, SC70, SOT23 Packages 1 XX These are PbFree Devices MM UDFN4 1 CASE 517BR Typical Applications Batterypowered Equipment XX, XXX, XXXX = Specific Device Code Networking and Communication Equipment M, MM = Date Code Cameras, DVRs, STB and Camcorders Home Appliances ORDERING INFORMATION NCP4683x VIN VOUT See detailed ordering, marking and shipping information in the VIN VOUT package dimensions section on page 18 of this data sheet. C1 C2 CE 1 1 GND Figure 1. Typical Application Schematic Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: February, 2016 Rev. 3 NCP4683/DNCP4683 VIN VIN VOUT VOUT Vref Vref Current Limit Current Limit CE CE GND GND NCP4683Dxxxx NCP4683Hxxxx Figure 2. Simplified Schematic Block Diagram PIN FUNCTION DESCRIPTION Pin No. Pin No. Pin No. UDFN1010* SC70 SOT23 Pin Name Description 1 4 5 V Output pin OUT 2 3 2 GND Ground 3 1 3 CE Chip enable pin (Active H) 4 5 1 V Input pin IN 2 4 NC No connection *Tab is GND level. (They are connected to the reverse side of this IC. The tab is better to be connected to the GND, but leaving it open is also acceptable. ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit Input Voltage (Note 1) V 6.0 V IN Output Voltage V 0.3 to VIN + 0.3 V OUT Chip Enable Input V 0.3 to 6.0 V CE Output Current I 400 mA OUT Power Dissipation UDFN1010 P 400 mW D Power Dissipation SC70 380 Power Dissipation SOT23 420 Junction Temperature T 40 to 150 C J Storage Temperature T 55 to 125 C STG ESD Capability, Human Body Model (Note 2) ESD 2000 V HBM ESD Capability, Machine Model (Note 2) ESD 200 V MM Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area. 2. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per AECQ100002 (EIA/JESD22A114) ESD Machine Model tested per AECQ100003 (EIA/JESD22A115) Latchup Current Maximum Rating tested per JEDEC standard: JESD78. www.onsemi.com 2