RP114x SERIES
300 mA LDO REGULATOR
No.EA-236-190130
OUTLINE
The RP114x is a CMOS-based voltage regulator IC with high output voltage accuracy, low supply current, low
dropout, and high ripple rejection. This IC consists of a voltage reference unit, an error amplifier, resistors for
setting output voltage, a short current limit circuit, a chip enable circuit, and so on. The RP114x features a
minimum input voltage from 1.4V and the output voltage, which can be set from 0.8V to 3.6V (in 0.1V step).
The output voltage of this IC is internally fixed. This IC perform with low dropout voltage due to built-in transistor
with low ON resistance. Low supply current and a chip enable function prolong the battery life of each system.
The ripple rejection, line transient response and load transient response of the RP114x is excellent, thus this
IC is very suitable for the power supply for hand-held communication equipment. Since the packages for this
IC are DFN(PLP)1010-4、DFN(PLP)1010-4B、SC-88A、SOT-23-5, therefore high density mounting of the IC
on boards is possible.
FEATURES
Supply Current ................................................................ Typ. 50µA
Standby Current ............................................................. Typ. 0.1µA
Input Voltage Range ....................................................... 1.4V to 5.25V
Output Voltage Range
(1)
................................................. 0.8V to 3.6V (0.1V steps)
Output Voltage Accuracy ................................................
1.0%
(V
SET
>2.0V, Ta=25C)
Temperature-Drift Coefficient of Output Voltage............. Typ.
80ppm/C
Dropout Voltage .............................................................. Typ. 0.25V (I
OUT
=300mA,
V
SET
=2.8V)
Ripple Rejection ............................................................. Typ. 75dB (f=1kHz)
Line Regulation ............................................................... Typ. 0.02%/V
●
Packages ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ DFN(PLP)1010-4、DFN(PLP)1010-4B、
SC-88A、SOT-23-5
Built-in Fold Back Protection Circuit ............................... Typ. 60mA (Current at short mode)
Ceramic capacitors are recommended to be used with this IC ...... 1.0µF or more
APPLICATIONS
Power source for portable communication equipment.
Power source for electrical appliances such as cameras, VCRs and camcorders.
Power source for battery-powered equipment.
(1)
For other voltages, please refer to
Product-specific Electrical Characteristics.
1
RP114x
No.EA-236-190130
SELECTION GUIDE
The set output voltage, the auto discharge function
(1)
, and the package type for the ICs are user-selectable
options.
Product Name
RP114Kxx1(y)-TR
RP114Kxx1(y)-TRB
RP114Qxx2(y)-TR-FE
RP114Nxx1(y)-TR-FE
Package
DFN(PLP)1010-4
DFN(PLP)1010-4B
SC-88A
SOT-23-5
Quantity per Reel
10,000 pcs
10,000 pcs
3,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
Yes
xx : Specify the set output voltage within the range of 0.8 V (08) to 3.6 V (36) in 0.1 V step.
(y): If the output voltage includes the 3rd digit, indicate the digit of 0.01V.
Ex. If the output voltage is 1.25V, RP114K121∗5-TR
If the output voltage is 1.85V, RP114K181∗5-TR
:
Specify a combination of the CE pin polarity and the auto-discharge function.
(B) “H” Active, without Auto-Discharge function
(D) “H” Active, with Auto-Discharge function
BLOCK DIAGRAMS
VDD
VOUT VDD
VOUT
Vref
Current Limit
Vref
Current Limit
CE
GND CE
GND
RP114xxxxB Block Diagram
RP114xxxxD Block Diagram
(1)
Auto-Discharge function quickly lowers the output voltage to 0V by releasing the electrical charge in the external
capacitor when the chip enable signal is switched from the active mode to the standby mode.
2
RP114x
No.EA-236-190130
PIN DESCRIPTIONS
RP114K [DFN(PLP)1010-4]
Top View
4
3
RP114K [DFN(PLP)1010-4B]
Top View
4
3
Bottom View
3
4
Bottom View
3
4
1
2
2
1
1
2
2
1
RP114Q (SC-88A)
5
4
RP114N (SOT-23-5)
5
4
(mark side)
(mark side)
1
2
3
1
2
3
RP114K Pin Description [DFN(PLP)1010-4 / DFN(PLP)1010-4B]
Pin No
1
2
3
4
Symbol
VOUT
GND
CE
VDD
Output Pin
Ground Pin
Chip Enable Pin ("H" Active)
Input Pin
Pin Description
Tab is GND level. (They are connected to the reverse side of this IC.) The tab is better to be connected to the GND, but
leaving it open is also acceptable.
RP114Q Pin Description (SC-88A)
Pin No
1
2
3
4
5
Symbol
CE
NC
GND
VOUT
VDD
Description
Chip Enable Pin (“H” Active)
No Connection
Ground Pin
Output Pin
Input Pin
3
RP114x
No.EA-236-190130
RP114N Pin Description (SOT-23-5)
Pin No
1
2
3
4
5
Symbol
VDD
GND
CE
NC
VOUT
Input Pin
Ground Pin
Chip Enable Pin (“H” Active)
No Connection
Output Pin
Description
4
RP114x
No.EA-236-190130
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
DFN(PLP)1010-4, JEDEC STD. 51
P
D
Power Dissipation
(1)
DFN(PLP)1010-4B, JEDEC STD. 51
SC-88A,
RICOH Evaluation Board
SOT-23-5, JEDEC STD. 51
Tj
Tstg
Junction Temperature Range
Storage Temperature Range
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent
damages and may degrade the life time and safety for both device and system using the device in the field.
The functional operation at or over these absolute maximum ratings are not assured.
Item
Rating
6.0
6.0
0.3
to V
IN
0.3
400
800
800
380
660
40
to 125
55
to 125
Unit
V
V
V
mA
mW
C
C
RECOMMENDED OPERATING CONDITIONS
Symbol
V
IN
Ta
Input Voltage
Operating Temperature Range
RECOMMENDED OPERATING CONDITIONS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended
operating conditions, even if when they are used over such ratings by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended
operating conditions.
Item
Rating
1.4 to 5.25
(2)
−40
to 85
Unit
V
°C
(1)
(2)
Refer to
POWER DISSIPATION
for detailed information.
If the input voltage exceeds the maximum value of 5.25 V for some reasons, the operational accumulated time
becomes up to 500 hours at 5.5V.
5
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