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S-1170B44UC-OUDTFG Datasheet(PDF) 1 Page - Seiko Instruments Inc |
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S-1170B44UC-OUDTFG Datasheet(HTML) 1 Page - Seiko Instruments Inc |
1 / 29 page Rev.3.0_02 HIGH RIPPLE-REJECTION AND LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR S-1170 Series Seiko Instruments Inc. 1 The S-1170 Series is a positive voltage regulator with a low dropout voltage, high output voltage accuracy, 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, a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor, and a built-in thermal shutdown circuit prevents damage caused by the heat. An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the conventional CMOS process, a larger variety of capacitors are available, including small ceramic capacitors. Small SOT-89-5 and 6-Pin HSON(A) packages realize high-density mounting. Features • Output voltage: 1.5 V to 5.5 V, selectable in 0.1 V steps. • High-accuracy output voltage: ±1.0% • Low dropout voltage: 120 mV typ. (3.0 V output product, IOUT = 300 mA) • Low current consumption: During operation: 80 µA typ., 160 µA max. During shutdown: 0.1 µA typ., 1.0 µA max. • High current capability: 800 mA output is possible (at VIN ≥ VOUT(S) + 1.0 V) *1 • Built-in ON/OFF circuit: Ensures long battery life. • Low ESR capacitor can be used: A ceramic capacitor of 4.7 µF or more can be used for the output capacitor. • High ripple rejection: 70 dB typ. (at 1.0 kHz) • Built-in overcurrent protector: Overcurrent of output transistor can be restricted. • Built-in thermal shutdown circuit: Damage caused by heat can be prevented. • Small package: SOT-89-5, 6-Pin HSON(A) • Lead-free products *1. Attention should be paid to the power dissipation of the package when the output current is large. Applications • Power supply for DVD and CD-ROM drives • Power supply for battery-powered devices • Power supply for personal communication device • Power supply for note PCs Packages Package Name Drawing Code Package Tape Reel SOT-89-5 UP005-A UP005-A UP005-A 6-Pin HSON(A) PD006-A PD006-A PD006-A |
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