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R1118x Series


AUTOMATIC MODE SHIFT / 150mA LOW VOLTAGE REGULATOR




| * Outline | * Features | * Applications | * Documenets Download |



Outline


R1118x Series are CMOS-based voltage regulator ICs with ultra low supply current (Typ.5.5μA), and remarkable improved transient response compared with the conventional low supply current voltage regulator.The supply current of these ICs is automatically shifts between fast mode and low power mode, it depending on the load current. The current threshould is fixed internally. R1118x shifts from low power mode to fast response mode at IOUT=7mA (Typ.) and shifts fast response mode to low power mode at IOUT=2mA (Typ.).

These ICs are capable of the low input voltage (Min.1.4V) and the output voltage range from 0.8V is possible.The output voltage of R1118x is fixed in the IC.

Each of these ICs consists of a voltage reference unit, an error amplifier, a resister net for setting output voltage, a current limit circuits for over-current.

A standby mode with ultra low supply current can be realized with the chip enable function.

Since the packages for these ICs are SOT-23-5 and DFN(PLP)1612-4B, therefore high density mounting of the ICs on boards is possible.
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Features


*Supply Current
Low power Mode: Typ. 5.5μA (IOUT=T 0mA)
Fast Mode: Typ. 50μA (IOUT=11mA)
Standby Mode: TYP. 0.1µA
*Ripple Rejection Typ. 70dB (f=1kHz)
Typ. 60dB (f=10kHz)
*Input Voltage Range 1.4V to 6.0V
*Output Voltage Range 0.8V to 4.2V
*Output Voltage Accuracy ±1.0%
(1.5V < VOUT <= 3.5V, Topt=25°C
*Temperature-Drift Coefficient of Output Voltage Typ. ±100ppm/°C
*Dropout Voltage

Typ. 0.27V (IOUT=150mA, VOUT=2.8V)

*
*Excellent Line Regulation Typ. 0.02%/V
*Packages DFN(PLP)1612-4B , SOT-23-5
*Built-in Short Current Limit Circuit Typ. 40mA
*Ceramic capacitors are recommended to be used with this IC 1.0µF
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Applications

Power source for portable communication equipment.
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for battery-powered equipment.
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Documents Download


Data Sheet
(PDF)
Package Info.
(PDF)
Mark Info.
(PDF)
Quality Assurance Data
(PDF)
*R1118x Series
EA-175-080109(679KB)
SOT-23-5 *R1118N *Reliability
DFN(PLP)1612-4B *R1118K *Reliability

* 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.

* Application Note

Application Note

Technical Information on Ricoh Power Management ICs.
*

Quick Links

* Quality Assurance System
(PDF:61KB)
* Inductor Information
(PDF:70KB)


Product Catalog

Selection Guide
Selection guide is available for download in PDF format.



Non-promotion / Discontinued Products

* Power Management ICs
* Real-time clock ICs


Lead (Pb) Free Information

All of the Lead-free products comply with RoHS Directive. RoHS Compliant


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