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S-1121B54MC-N3NTFG Datasheet(PDF) 1 Page - Seiko Instruments Inc |
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S-1121B54MC-N3NTFG Datasheet(HTML) 1 Page - Seiko Instruments Inc |
1 / 25 page Rev.4.1_00 HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-1111/1121 Series Seiko Instruments Inc. 1 The S-1111/1121 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, and a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor. An ON/OFF circuit ensures a long battery life, and a small SOT-23-5 package realize high-density mounting. The lineup includes the S-1111 and S-1121 Series, which differ in pin configuration. 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: 200 mV typ. (3.0 V output product, IOUT = 100 mA) • Low current consumption: During operation: 35 μA typ., 65 μA max. During shutdown: 0.1 μA typ., 1.0 μA max. • High peak current capability: 150 mA output is possible (at VIN ≥ VOUT(S) + 1.0 V) *1 • Built-in ON/OFF circuit: Ensures long battery life. • High ripple rejection: 70 dB typ. (at 1.0 kHz) • Built-in overcurrent protector: Overcurrent of output transistor can be restricted. • Small package: SOT-23-5 • 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 battery-powered devices • Power supply for personal communication devices • Power supply for home electric/electronic appliances • Power supply for cellular phones Package Package Name Drawing Code Package Tape Reel SOT-23-5 MP005-A MP005-A MP005-A |
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