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R1114NXX1X(X) Datasheet

  • R1114NXX1X(X)

  • Power Management ICs

  • 19頁(yè)

  • ETC

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'2002.7.17
LOW NOISE 150mA LDO REGULATOR
R1114X SERIES
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OUTLINE
The R1114X 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 ICs consists of a voltage reference unit , an error amplifier,
resistor-net for voltage setting, 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 R1114X 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 packages for these ICs are SOT-23-5 and SC82-AB,
therefore high density mounting of the ICs on boards is possible.
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FEATURES
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Low Supply Current............................................. Typ. 75碌A(chǔ)
Standby Mode ..................................................... Typ. 0.1碌A(chǔ)
Low Dropout Voltage ........................................... Typ. 0.22V (I
OUT
=150mA 3.0V Output type)
High Ripple Rejection .......................................... Typ. 70dB (f=1kHz 3.0V Output type) / 60dB (f=10kHz)
Low Temperature-Drift Coefficient of Output Voltage Typ. 鹵100ppm/擄C
Excellent Line Regulation..................................... Typ. 0.02%/V
High Output Voltage Accuracy.............................. 鹵2.0%
Small Package .................................................... SOT-23-5/SC82-AB
Output Voltage .................................................... Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is
possible
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Built-in Fold Back Protection Circuit ..................... Typ. 40mA (Current at short mode)
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Ceramic capacitors are recommended to be used with this IC
C
IN
=C
OUT
=1碌F(V
OUT
<2.5V)
.................................................................................
C
IN
=1碌F, C
OUT
=0.47碌F (V
OUT
鈮?.5V)
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APPLICATIONS
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Power source for portable communication equipment.
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for battery-powered equipment.
Rev. 1.10
-1-

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