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RP115L301B Datasheet Preview

RP115L301B Datasheet

Low On Resistance / Low Voltage 1ch 500mA/ 1.0A Alternative LDO

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RP115L301B pdf
RP115x SERIES
Low On Resistance/ Low Voltage 1ch 500mA/ 1.0A Alternative LDO
NO. EA-274-141205
OUTLINE
The RP115x Series are CMOS-based positive voltage regulators featuring 500mA/ 1.0A that provide high
ripple rejection, low dropout voltage, high output voltage accuracy, and low supply current. Internally, the RP115x
Series consist of a voltage reference unit, an error amplifier, a resistor-net for output voltage setting, a current
limit circuit, a thermal shutdown circuit, and a reverse current protection circuit.
The RP115x Series uses CMOS process for achieving low supply current, low On Resistance for low dropout
voltage (TYP. 0.195V (DFN1216-8, IOUT=1.0A, VSET=1.2V)) and CE function for long battery life.
Excellent ripple rejection, input transient response, and load transient response make this series ideal for the
power sources of mobile communication equipments.
The RP115x Series are available in the DFN1216-8 package for space saving and the SOT-89-5 (Output
current: 1.0A fixed) package for higher power applications.
The RP115L Series (DFN1216-8 package) can choose the output current limit between 1.0A or 500mA by
alternating the LCON pin between “H” or “L”.
The RP115H Series (SOT-89-5 package) can output only 1.0A since it does not include the LCON pin.
FEATURES
Supply Current ········································ TYP. 110μA
Supply Current (Standby Mode) ·················· TYP. 0.5μA
Dropout Voltage ······································ TYP. 0.195V (DFN1216-8: IOUT=1.0A, VSET=1.2 V)
TYP. 0.235V (SOT-89-5: IOUT=1.0A, VSET=1.2 V)
Ripple Rejection ······································ TYP. 80dB (f=1kHz, VSET 1.8V)
TYP. 75dB (f=1kHz, VSET > 1.8V)
Output Voltage Accuracy ··························· ±1.0% (VSET 1.75V)
Output Voltage Temperature Coefficient········ TYP. ±30ppm/ ºC (VSET 1.75V)
Line Regulation ······································· TYP. 0.02%/V
Package ················································ DFN1216-8, SOT-89-5
Output Voltage Range······························· 0.7V to 4.3V*1 (0.1V increments)
Built-in Short Current Limit Circuit················ TYP. 60mA (DFN1216-8: LCON = "L")
Built-in Peak Current Limit
Built-in Thermal Shutdown Circuit················ Thermal Shutdown Temperature: 165ºC
Built-in Constant Slope Circuit for Start-up
Built-in Inrush Current Suppression Circuit ···· TYP. 300mA (DFN1216-8: LCON="L")
Reverse Current Protection
Recommended Ceramic Capacitors············· 1.0µF or more
*1 For the voltages in 0.05V increments, please refer to SELECTION GUIDE.
APPLICATIONS
Power source for portable communication equipments.
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for battery-powered equipments.
Local power source for home appliances, printers, scanners, office equipment machines.
1



RICOH electronics
RICOH electronics

RP115L301B Datasheet Preview

RP115L301B Datasheet

Low On Resistance / Low Voltage 1ch 500mA/ 1.0A Alternative LDO

No Preview Available !

RP115L301B pdf
RP115x
NO. EA-274-141205
BLOCK DIAGRAMS
RP115Lxx1B
VDD
CE
-
Vref +
Current Limit
Thermal Shutdown
Reverce
Ditector
VDD
CE
LCON
RP115Hxx1B
-
Vref +
Current Limit
Thermal Shutdown
Reverce
Detector
VOUT VDD
VFB
GND CE
VOUT VDD
VFB
GND CE
RP115Lxx1D
-
Vref +
Current Limit
Thermal Shutdown
Reverce
Ditector
LCON
RP115Hxx1D
-
Vref +
Current Limit
Thermal Shutdown
Reverce
Detector
VOUT
VFB
GND
VOUT
VFB
GND
Note: The RP115H does not include the LCON pin. The output current limit is fixed at 1A.
2


Part Number RP115L301B
Description Low On Resistance / Low Voltage 1ch 500mA/ 1.0A Alternative LDO
Maker RICOH electronics
Total Page 30 Pages
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