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R1140Q151B-TL データシート(PDF) 2 Page - RICOH electronics devices division

部品番号 R1140Q151B-TL
部品情報  SC82 120mA LDO REGULATOR???
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メーカー  RICOH [RICOH electronics devices division]
ホームページ  http://www.ricoh.com
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SC82 120mA LDO REGULATOR
R1140Q SERIES
1
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
• Low Dropout Voltage ........................................................... TYP. 0.15V (IOUT=100mA Output Voltage=3.0V Type)
• 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.


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