RP114x SERIES
300mA LDO REGULATOR
NO. EA-236-120613
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
•
•
•
•
•
•
•
•
•
•
•
•
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 INFORMATIONS.)
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
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, auto discharge function, and package, etc. for the ICs can be selected at the user’s
request.
Product Name
RP114Kxx1∗-TR
RP114Qxx2∗-TR-FE
RP114Nxx1∗-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 : The set output voltage can be selected from 0.8V(08) to 3.6V(36) in 0.1V steps.
The second decimal point of the voltage is described as below.
1.25V: RP114K121∗5-TR, RP114Q122∗5-TR-FE, RP114N121∗5-TR-FE
1.85V: RP114K181∗5-TR, PR114Q182∗5-TR-FE, RP114N181∗5-TR-FE
2.85V: RP114K281∗5-TR, PR114Q282∗5-TR-FE, RP114N281∗5-TR-FE
∗
: The auto discharge function at off state is options as follows.
(B) without auto discharge function at off state
(D) with auto discharge function at off state
2
RP114x
PIN CONFIGURATIONS
•
DFN(PLP)1010-4
Top View
4
3
•
SC-88A
4
5
4
•
SOT-23-5
5
4
Bottom View
3
∗
(mark side)
(mark side)
1
2
2
1
1
2
3
1
2
3
PIN DESCRIPTIONS
•
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
No Connection
Ground Pin
Output Pin
Input Pin
Pin Description
Chip Enable Pin ("H" Active)
•
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
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation (DFN(PLP)1010-4)
Power Dissipation (SC-88A)
∗
∗
∗
Item
Rating
6.0
−0.3
to 6.0
−0.3
to V
IN
+0.3
400
400
380
420
−40
to 85
−55
to 125
Unit
V
V
V
mA
mW
°C
°C
Power Dissipation (SOT-23-5)
T
opt
T
stg
Storage Temperature Range
Operating Temperature Range
∗)
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.
4
RP114x
POWER DISSIPATION (DFN(PLP)1010-4)
This specification is at mounted on board. Power Dissipation (P
D
) depends on conditions of mounting on board.
This specification is based on the measurement at the condition below:
Measurement Conditions
Standard Land Pattern
Environment
Board Material
Board Dimensions
Copper Ratio
Through-holes
Measurement Results
Power Dissipation
Thermal Resistance
Thermal Resistance
600
Mounting on Board (Wind velocity=0m/s)
Glass cloth epoxy plastic (Double sided)
40mm
×
40mm
×
1.6mm
Top side : Approx. 50% , Back side : Approx. 50%
φ0.54mm ×
24pcs
(Topt=25°C, Tjmax=125°C)
Standard Land Pattern
400mW
θja=(125−25°C)/0.4W=250°C/W
θjc=67°C/W
40
Power Dissipation P
D
(mW)
500
400
300
200
100
0
0
25
85
50
75
100
Ambient Temperature (°C)
40
125
150
Measurement Board Pattern
IC Mount Area
(Unit: mm)
Power Dissipation
The above graph shows the Power Dissipation of the
package based on Tjmax=125°C and Tjmax=150°C.
Operating the IC in the shaded area in the graph
might have an influence it's lifetime.
Operating time must be within the time limit described
in the table below, in case of operating in the shaded
area.
Operating Estimated
years∗
time
13,000hrs
9years
∗The
volume is calculated on the supposition that
operating four hours/day.
RECOMMENDED LAND PATTERN
3-
C
0.
1
0.25
8
0.
48
0.47
1.30
0.22
0.65
0.
45
48
(Unit: mm)
0.40
5
Microchip MCU
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