120mA LDO REGULATOR
The R1141Q Series consist of 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.
Output Current Limit circuit is embedded in the R1141Q Series to prevent the break down of the IC caused by
excess current.
Chip enable circuit realizes standby mode and makes consumption current extremely small.
These ICs perform with low dropout voltage and a chip enable function. The line transient response and load
transient response of the R1141Q Series are excellent, making these ICs very suitable for the power supply for
hand-held communication equipment.
Their output voltage 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. 90µA |
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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 (VOUT<2.4V), 70dB (VOUT>2.5V) (f=1kHz) |
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| Low
Temperature-Drift Coefficient of Output Voltage |
Typ. ±100ppm/°C |
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| Excellent
Line Regulation |
Typ. 0.02%/V |
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| High
Output Voltage Accuracy |
±1.5% or ±30mV (VOUT<2.0V) |
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| Excellent
Dynamic Response |
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| Small
Package |
SC-82AB
(Super Mini-mold) |
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| Output
Voltage |
1.5V to 4.0V |
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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 (Short Current) |
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| Ceramic
capacitor can be used for Output pin |
Recommended value is 2.2µF or more. |
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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, camcorders, and hand-held
communication equipment.
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Power source for battery-powered equipment.
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Very stable Voltage Reference.
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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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R1141Q
Series
