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S1112 Datasheet(PDF) 1 Page - Seiko Instruments Inc |
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S1112 Datasheet(HTML) 1 Page - Seiko Instruments Inc |
1 / 30 page S-1112/1122 Series www.sii-ic.com HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR © Seiko Instruments Inc., 2002-2015 Rev.6.1_00 Seiko Instruments Inc. 1 The S-1112/1122 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output voltage, and low current consumption developed based on CMOS technology. A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in overcurrent protection circuit prevents the load current from exceeding the current capacity of the output transistor. An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the conventional CMOS technology, a larger variety of capacitors are available, including small ceramic capacitors. Small SNT-6A(H) (S-1112 Series only) and SOT-23-5 packages realize high-density mounting. In SOT-23-5, the lineup includes the S-1112 and S-1122 Series, which differ in pin configuration. Features • Output voltage: 1.5 V to 5.5 V, selectable in 0.1 V step • Output voltage accuracy: ±1.0% • Dropout voltage: 190 mV typ. (3.0 V output product, IOUT = 100 mA) • Current consumption: During operation: 50 μA typ., 90 μA max. During power-off: 0.1 μA typ., 1.0 μA max. • Output current: Possible to output 150 mA (VIN ≥ VOUT(S) + 1.0 V) *1 • Output capacitor: A ceramic capacitor of 0.47 μF or more can be used. • Ripple rejection: 80 dB typ. (f = 1.0 kHz) • Built-in overcurrent protection circuit: Limits overcurrent of output transistor. • Built-in ON/OFF circuit: Ensures long battery life. • Operation temperature range: Ta = −40°C to +85°C • Lead-free, Sn 100%, halogen-free *2 *1. Attention should be paid to the power dissipation of the package when the output current is large. *2. Refer to “ Product Name Structure” for details. Applications • Constant-voltage power supply for battery-powered device • Constant-voltage power supply for personal communication device • Constant-voltage power supply for home electric/electronic appliance • Constant-voltage power supply for cellular phone Packages • SNT-6A(H) • SOT-23-5 |
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