R5112S Series

42 V Input Ultra Low Supply Current VR with RESET

NO.EA-406-160420

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OUTLINE

R5112S is an ultra-low supply current voltage regulator with a voltage detector featuring 200 mA output

current and 42 V input voltage. This device consists of an Output Short-circuit Protection Circuit, an

Overcurrent Protection Circuit, and a Thermal Shutdown Circuit in addition to the basic regulator circuits. The

operating temperature range is between

−40°C to 105°C, and the maximum input voltage is 42 V. The output

voltages are internally fixed at either of the following: 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.4 V, or 5.0 V. The

output voltage accuracy is ±0.6%. The detector threshold accuracy of the voltage detector is ±0.6%. This

device is offered in an 8-pin HSOP-8E package with high power dissipation.

FEATURES

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Input Voltage Range (Maximum Rating)··········· 3.5 V to 42 V (50 V)

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Operating Temperature Range·······················

−40°C to 105°C

(Usable in high-temperature environment)

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Supply Current ··········································· Typ. 3.8 µA

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Standby Current ········································· Typ. 0.1 µA

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Output Voltage Range ································· 1.8 V / 2.5 V / 2.8 V / 3.0 V / 3.3 V / 3.4 V / 5.0 V

*Contact Ricoh sales representatives for other voltages.

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Output Voltage Accuracy ······························ ±0.6% (Ta = 25°C)

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Output Voltage Temperature-Drift Coefficient ···· Typ. ±60 ppm/°C

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Detector Threshold Range ···························· R5112Sxx1B: 1.6 V to 4.8 V

R5112Sxx1D: 2.9 V to 4.8 V

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Detector Threshold Accuracy························· ±0.6% (Ta = 25°C)

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Detector Threshold Temperature Coefficient ····· Typ. ±60 ppm/°C

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Line Regulation ·········································· Typ. 0.01%/V (2.5 V

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Built-in Output Short-circuit Protection Circuit···· Typ. 80 mA

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Built-in Overcurrent Protection Circuit·············· Typ. 350 mA

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Built-in Thermal Shutdown Circuit··················· Thermal Shutdown Temperature: Typ. 170°C

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Ceramic capacitors are recommended

μF or more

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Package ··················································· HSOP-8E

APPLICATIONS

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Power source for home appliances such as refrigerators, rice cookers, and electric hot-water pot.

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Power source for notebook PCs, digital TVs, cordless phones, and private LAN system.

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Power source for office equipment machines such as copiers, printers, facsimiles, scanners,

and projectors.