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R1122N Datasheet(PDF) 1 Page - RICOH electronics devices division

Part No. R1122N
Description  LOW NOISE 150mA LDO REGULATOR
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Maker  RICOH [RICOH electronics devices division]
Homepage  http://www.ricoh.com
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R1122N Datasheet(HTML) 1 Page - RICOH electronics devices division

 
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R1122N SERIES
LOW NOISE 150mA LDO REGULATOR
NO.EA-060-111027
1
OUTLINE
The R1122N Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, low ON-resistance, and high Ripple Rejection. Each of these voltage regulator ICs consists of a
voltage reference unit, an error amplifier, resistors, a current limit circuit, and a chip enable circuit. These ICs
perform with low dropout voltage and a chip enable function.
The line transient response and load transient response of the R1122N Series are excellent, thus these ICs
are very suitable for the power supply for hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy. Since the package for these ICs is SOT-23-5
(Mini-mold) package , high density mounting of the ICs on boards is possible.
FEATURES
• Supply Current ................................................................Typ. 100μA
• Standby Mode Current ..................................................Typ. 0.1μA
• Dropout Voltage ..............................................................Typ. 0.19V (IOUT=100mA 3.0V Output type)
• Ripple Rejection..............................................................Typ. 80dB(f=1kHz)
• Temperature-Drift Coefficient of Output Voltage .............Typ. ±100ppm/°C
• Line Regulation ...............................................................Typ. 0.05%/V
• Output Voltage Accuracy.................................................±2.0%
• Output Voltage Range.....................................................1.5V to 5.0V (0.1V steps)
(For other voltages, please refer to MARK INFORMATIONS.)
• Package ........................................................................SOT-23-5 (Mini-mold)
• Built-in chip enable circuit ( 2 types; A: active “Low”, B: active “High”)
• Built-in fold-back protection circuit ..................................Short Current Typ.30mA
• Pin-out.............................................................................Similar to the TK112,TK111
• Ceramic Capacitors Recommended to be used with this IC
APPLICATIONS
• Power source for cellular phones such as GSM, CDMA, PCS and so forth.
• Power source for domestic appliances such as cameras, VCRs and camcorders.
• Power source for battery-powered equipment.


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