RP114x SERIES
300mA LDO REGULATOR
NO. EA-236-160824
OUTLINE
The RP114x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, low supply
current, low dropout, 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 short current limit circuit, a chip enable circuit, and
so on.
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 these ICs is internally fixed.
These ICs 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 Series are excellent, thus these ICs are very suitable for
the power supply for hand-held communication equipment.
Since the packages for these ICs are DFN(PLP)1010-4, SC-88A, SOT-23-5, therefore high density mounting
of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
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Supply Current ............................................................. Typ. 50µA
Standby Current ........................................................... Typ. 0.1µA
Input Voltage Range ..................................................... 1.4V to 5.25V
Output Voltage Range .................................................. 0.8V to 3.6V (0.1V steps)
(
For other voltages, please refer to
Mark Specification Table
).
Output Voltage Accuracy ..............................................
±1.0%
(V
SET
>2.0V, T
opt
=25°C)
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 .................................................................... DFN(PLP)1010-4, 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
RP114x
NO. EA-236-160824
BLOCK DIAGRAMS
RP114xxxxB
V
DD
V
OUT
V
DD
RP114xxxxD
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The set output voltage, the auto discharge function, and the package type for the ICs are user-selectable
options.
Product Name
RP114Kxx1∗(y)-TR
RP114Qxx2∗(y)-TR-FE
RP114Nxx1∗(y)-TR-FE
Package
DFN(PLP)1010-4
SC-88A
SOT-23-5
Quantity per Reel
10,000 pcs
3,000 pcs
3,000 pcs
Pb Free
Yes
Yes
Yes
Halogen Free
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.
(1.05 V, 1.15 V, 1.25 V, 1.35 V, 1.75 V, 1.85 V, 2.85 V, 3.45 V)
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
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-236-160824
PIN DESCRIPTIONS
•
DFN(PLP)1010-4
Top View
4
3
•
SC-88A
5
4
4
•
SOT-23-5
5
4
Bottom View
3
∗
(mark side)
(mark side)
1
2
2
1
1
2
3
1
2
3
•
DFN(PLP)1010-4
Pin No
1
2
3
4
Symbol
V
OUT
GND
CE
V
DD
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.
•
SC-88A
Pin No
1
2
3
4
5
Symbol
CE
NC
GND
V
OUT
V
DD
Pin Description
Chip Enable Pin ("H" Active)
No Connection
Ground Pin
Output Pin
Input Pin
•
SOT-23-5
Pin No
1
2
3
4
5
Symbol
V
DD
GND
CE
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin ("H" Active)
No Connection
Output Pin
Pin Description
3
RP114x
NO. EA-236-160824
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation (DFN(PLP)1010-4)
∗
P
D
Power Dissipation (SC-88A)
∗
Power Dissipation (SOT-23-5)
∗
T
opt
T
stg
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.0
6.0
−0.3
to V
IN
+0.3
400
400
380
420
−40
to 85
−55
to 125
°C
°C
mW
Unit
V
V
V
mA
∗)
For Power Dissipation, please refer to
PACKAGE INFORMATION.
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 is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
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 conditions by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended operating
conditions.
4
RP114x
NO. EA-236-160824
•
ELECTRICAL CHARACTERISTICS
RP114x
V
IN
=V
SET
+1.0V
(V
SET
>
1.5V), V
IN
=2.5V
(V
SET
≤
1.5V), I
OUT
=1mA,
C
IN
=C
OUT
=1.0µF,
unless otherwise noted.
V
SET
is Set Output Voltage.
The specifications in
are guaranteed by design engineering at -40ºC ≤ Ta ≤ 85ºC.
RP114xxxxB/D
Symbol
(Ta=25°C)
Item
Ta=25°C
Conditions
V
SET
> 2.0V
V
SET
≤ 2.0V
V
SET
> 2.0V
V
SET
≤ 2.0V
Min.
×0.99
-20
×0.97
-60
300
Typ.
Max.
×1.01
+20
×1.03
+60
Unit
V
mV
V
mV
mA
V
OUT
Output Voltage
-40°C ≤ Ta ≤ 85°C
I
OUT
∆V
OUT
/∆I
OUT
V
DIF
I
SS
∆V
OUT
/∆V
IN
Output Current
Load Regulation
Dropout Voltage
Supply Current
1mA ≤ I
OUT
≤ 300mA
15
40
mV
Please refer to
Dropout Voltage
shown on the next page.
I
OUT
= 0mA
V
CE
= 0V
V
SET
+0.5V ≤ V
IN
≤ 5.25V
(V
IN
≥ 1.4V)
f=1kHz
Ripple 0.2Vp-p
V
IN
=V
SET
+1V
I
OUT
=30mA
(When V
SET
≤ 2.0V, V
IN
=3.0V)
1.4
±80
60
0.3
1.0
0.4
BW=10Hz to 100kHz
I
OUT
=30mA
V
IN
=4.0V
V
CE
=0V
75
50
0.6
50
0.1
0.02
75
1.0
0.10
μA
μA
%/V
Istandby Standby Current
Line Regulation
RR
Ripple Rejection
75
dB
V
IN
∆V
OUT
/∆Ta
I
SC
I
PD
V
CEH
V
CEL
en
R
LOW
Input Voltage
*2
Output Voltage
-40°C ≤ Ta ≤ 85°C
Temperature Coefficient
Short Current Limit
CE Pull-down Current
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
LOW Output Nch On
Resistance
(D version only)
V
OUT
=0V
5.25
V
ppm
/°C
mA
μA
V
V
μVrms
Ω
All test items listed under
Electrical Characteristics
are done under the pulse load condition (Tj≈Ta=25ºC) except for Output
Noise, Ripple Rejection, and Output Voltage Temperature Coefficient.
*2
The maximum input voltage listed under
Electrical Characteristics
is 5.25V. If, for any reason the input voltage exceeds
5.25V, it has to be no more than 5.5V with 500hrs of the total operating time.
5
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