400 mA, High Accuracy, Low Input Voltage, Low Dropout Regulator

The NCP4686 is CMOS Linear voltage regulators with 400 mA output current capability. The device has very high output voltage accuracy, low supply current and low ON−resistance transistor. The NCP4686 is easy to use and includes output current fold−back protection and a fully integrated constant slope circuit as a soft−start circuit. Due to it inrush current is minimized and no output voltage overshoots are there. A Chip Enable function is included to save power by lowering supply current.

FEATUREs
• Operating Input Voltage Range: 1.0 V to 3.6 V
• Output Voltage Range: 0.7 V to 1.8 V (available in 0.1 V steps)
• Output Voltage Accuracy: ±0.8% (VOUT ≥ 1.0 V, TA = 25°C)
• Supply Current: 48 μA
• Dropout Voltage: 0.22 V (VOUT = 1.5 V)
• Line Regulation: 0.1%/V Typ.
• Ripple Rejection: Typ. 60 dB (f = 10 kHz)
• Stable with Ceramic Capacitors: 1 F or more
• Current Fold Back Protection
• Build−in Constant Slope Circuit
• Available in XDFN6 1.2 x 1.2 mm, SC−70, SOT23 Packages
• These are Pb−Free Devices

Typical Applications
• Battery−powered Equipment
• Networking and Communication Equipment
• Cameras, DVRs, STB and Camcorders
• Home Appliances