R1140Q21DTL-F
| Model | R1140Q21DTL-F |
| Description | Fixed Positive LDO Regulator, 2.1V, 0.4V Dropout, CMOS, PDSO4, SC-82AB, 4-PIN |
| PDF file | Total 16 pages (File size: 429K) |
| Chip Manufacturer | RICOH |
R1140Q SERIES
Discontinued
120mA LDO REGULATOR
NO.EA-074-110412
OUTLINE
The R1140Q Series are CMOS-based voltage regulator ICs with high output voltage accuracy, 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 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
transient 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
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Power source for cellular phones such as GSM, CDMA and various kinds of PCS.
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Power source for electrical appliances such as cameras, VCRs and camcorders.
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Power source for battery-powered equipment.
Di
APPLICATION
sc
o
Ultra-Low Supply Current............................................. Typ. 75μA
Standby Mode .............................................................. Typ. 0.1μA
Low Dropout Voltage.................................................... Typ. 0.15V (I
OUT
=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%
Output Voltage Range.................................................. 1.5V to 4.0V
Excellent Dynamic Response
Small Package ............................................................. SC-82AB (Super Mini-mold)
Built-in Chip Enable Circuit (B/D : active high)
Built-in Fold-back Protection Circuit............................ Typ. 40mA (Current at short mode)
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inu
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