S-816 Series EXTERNAL TRANSISTOR TYPE www.ablic.com CMOS VOLTAGE REGULATOR www.ablicinc.com ABLIC Inc., 1996-2014 Rev.6.1 02 The S-816 Series, developed using the CMOS technology, is an external transistor type positive voltage regulator which incorporates an overcurrent protection circuit and an ON/OFF circuit. A low drop-out type regulator with an output current ranging from several hundreds of mA to 1 A can be configured with the PNP transistor driven by this IC. Despite the features of the S-816 Series, which is low current consumption, the improvement in its transient response characteristics of the IC with a newly deviced phase compensation circuit made it possible to employ the products of the S-816 Series even in applications where heavy input variation or load variation is experienced. The S-816 Series regulator serves as an ideal power supply unit for portable devices when coupled with the small SOT-23-5 package, providing numerous outstanding features, including low current consumption. Since the S-816 Series can accommodate an input voltage of up to 16 V, it is also suitable when operating via an AC adapter. Features Output voltage: 2.5 V to 6.0 V, selectable in 0.1 V step Input voltage: 16 V max. Output voltage accuracy: 2.0% Current consumption: During operation: 30 A typ., 40 A max. During power-off: 1 A max. Built-in overcurrent (base current) protection circuit Built-in ON/OFF circuit: Ensures long battery life. Built-in current source (10 A): No need for a base-emitter resistance. Operation temperature range: Ta = 40 C to 85 C *1 Lead-free, Sn 100%, halogen-free *1. Refer to Product Name Structure for details. Applications Power supply for on-board such as battery device for portable telephone, electronic notebook, PDA Constant voltage power supply for camera, video equipment and portable communication equipment Power supply for CPU Post-regulator for switching regulator Main regulator in multiple-power supply system Package SOT-23-5 1 EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR S-816 Series Rev.6.1 02 Block Diagram VIN EXT VOUT Current Source Pull-Up Reisitance Overcurrent Protection Circuit Error Sink V Amplifier ref Driver ON/OFF VSS Remark 1. To ensure you power cutoff of the external transistor when the device is powered down, the EXT output is pulled up to V by a pull-up resistance (approx. 0.5 M ) inside the IC. IN 2. The diode inside the IC is a parasitic diode. Figure 1 2