
Seiko Instruments Inc
LOW DROPOUT CMOS VOLTAGE REGULATOR
The S-818 Series is a positive voltage regulator developed utilizing CMOS technology featured by low dropout voltage, high output voltage accuracy and low current consumption. Built-in low on-resistance transistor provides low dropout voltage and large output current. A ceramic capacitor of 2 µF or more can be used as an output capacitor. A power-OFF circuit ensures long battery life.
The SOT-23-5 miniaturized package and the SOT-89-5 package are recommended for configuring portable devices and large output current applications, respectively.
FEATUREs
• Low current consumption
During operation: Typ. 30 µA, Max. 40 µA
During power off: Typ. 100 nA, Max. 500 nA
• Output voltage: 0.1 V steps between 2.0 and 6.0 V
• High accuracy output voltage: ±2.0%
• Peak output current;
200 mA capable (3.0 V output product, VIN=4 V) Note
300 mA capable (5.0 V output product, VIN=6 V) Note
• Low dropout voltage
Typ. 170 mV (5.0 V output product, IOUT = 60 mA)
A ceramic capacitor (2 µF or more) can be used as an
output capacitor.
• Built-in power-off circuit
• Compact package: SOT-23-5, SOT-89-5
APPLICATIONs
• Power source for battery-powered devices
• Power source for personal communication devices
• Power source for home electric/electronic appliances