120mA LDO REGULATOR
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. |
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 Ultra-Low
Supply Current |
Typ. 75µA |
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| Standby
Mode |
Typ. 0.1µA |
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| Low
Dropout Voltage |
Typ. 0.15V (IOUT=100mA, Output Voltage=3.0V
Type) |
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| High
Ripple Rejection |
Typ. 75dB (f=1kHz) |
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| Low
Temperature-Drift Coefficient of Output Voltage |
Typ. ±100ppm/°C |
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| Excellent
Line Regulation |
Typ. 0.05%/V |
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| High
Output Voltage Accuracy |
±2.0% |
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| Output
Voltage Range |
1.5V to 4.0V |
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| Excellent
Dynamic Response |
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| Small
Package |
SC-82AB
(Super Mini-mold) |
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| Built-in
Chip Enable Circuit (B/D : active high) |
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| Built-in
Fold-back Protection Circuit |
Typ. 40mA (Current at short mode) |
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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.
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| * All PDF files are less than 1MB unless otherwise stated. |
| * If you don't have Adobe Reader, you can download free. |
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Technical Info.
Technical Information on Ricoh Power Management ICs.
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Product Catalog
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| Selection guide is available for download in PDF format. |
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R1140Q
Series
