SC82 120mA LDO REGULATOR

R1140Q SERIES

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OUTLINE

The R1140Q Series are voltage regulator ICs with high output voltage accuracy, low supply current, low ON-

resistance, and high ripple rejection by CMOS process. Each of these voltage regulator ICs consists of a voltage refer-

ence unit, an error amplifier, resistors for setting Output Voltage, 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 tran-

sient response of the R1140Q 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 internally fixed with high accuracy. Since the package for these ICs is SC-82AB

(Super Mini-mold) package, high density mounting of the ICs on boards is possible.

FEATURES

• Ultra-Low Supply Current ................................................... TYP. 75µA

• Standby Mode....................................................................... TYP. 0.1µA

• High Ripple Rejection .......................................................... TYP. 75dB (f=1kHz)

• Low Temperature-Drift Coefficient of Output Voltage....... TYP. ±100ppm/°C

• Excellent Line Regulation.................................................... TYP. 0.05%/V

• High Output Voltage Accuracy ............................................ ±2.0%

• Excellent Dynamic Response

• Small Package....................................................................... SC-82AB (Super Mini-mold)

• Output Voltage...................................................................... Stepwise setting with a step of 0.1V in the range of 1.5V

to 4.0V is possible

• Built-in chip enable circuit (B/D: active high)

• Built-in fold-back protection circuit..................................... TYP. 40mA (Current at short mode)

APPLICATIONS

• Power source for cellular phones such as GSM, CDMA and various kinds of PCS.

• Power source for electrical appliances such as cameras, VCRs and camcorders.

• Power source for battery-powered equipment.