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R1180N121B Datasheet, PDF (1/24 Pages) RICOH electronics devices division – 150mA LDO REGULATOR
R1180x SERIES
150mA LDO REGULATOR
NO.EA-105-0606
OUTLINE
The R1180x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, and low ON-resistance. Each of these ICs consists of a voltage reference unit, an error amplifier,
resistor-net for voltage setting, a current limit circuit which prevents the destruction by excess current, and so on.
The output voltage of these ICs is fixed with high accuracy. B version has a chip enable pin, therefore ultra-low
consumption current standby mode can be realized with the pin.
Since the packages for these ICs are SOT-23-5 (R1180N Series), SC-82AB (R1180Q Series), and SON1612-6
(R1180D Series), therefore high density mounting of the ICs on boards is possible.
FEATURES
• Low Supply Current ..........................................Typ. 1µA(Except the current through CE pull-down circuit)
• Standby Mode ...................................................Typ. 0.1µA
• Low Dropout Voltage.........................................Typ. 0.25V (IOUT=150mA 3.0V Output type)
• Low Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
• Good Line Regulation .......................................Typ. 0.05%/V
• High Output Voltage Accuracy ..........................±2.0%
• Small Packages ..............................................SOT-23-5 (R1180N), SC-82AB (R1180Q),
SON1612-6 (R1180D)
• Output Voltage ..................................................1.2V to 3.6V
• Built-in Fold Back Protection Circuit .................Typ. 40mA (Current at short mode)
• Ceramic capacitors are recommended to be used with this IC 0.1µF
APPLICATIONS
• Stable voltage reference.
• Power source for electrical appliances such as cameras, VCRs and camcorders.
• Power source for battery-powered equipment.
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