LOW NOISE 150mA LDO REGULATOR
| The R1124N 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 R1124N 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 package for
these ICs is SOT-23-5, high
density mounting of the ICs on boards is possible. |
|
 Low
Supply Current |
TYP. 75µA |
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| Standby
Mode |
TYP. 0.1µA |
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| Low
Dropout Voltage |
TYP. 0.22V(IOUT=150mA, 3.0V Output type) |
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| High
Ripple Rejection |
TYP. 70dB(f=1kHz 3.0V Output type) / 60dB(f=10kHz) |
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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 |
±2.0%
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| Small
Package |
SOT-23-5 |
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| 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 |
CIN=COUT=1mF(VOUT<2.5V)
CIN=1mF, COUT=0.47mF(VOUT≥2.5V) |
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Power source for cellular phones such as GSM, CDMA and various
kind of PCSs.
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Power source for domestic 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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R1124N
Series
