RP102x SERIES
LOW NOISE 300mA LDO REGULATOR
NO.EA-141-070727
OUTLINE
The RP102x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, extremely low
supply current, low ON-resistance, and high ripple rejection. Each of these ICs consists of a voltage reference
unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit and a chip enable circuit.
These ICs perform with low dropout voltage and "chip enable" function. The line transient response and load
transient response of the RP102x Series are excellent, thus these ICs are very suitable for the power supply for
hand-held communication equipment.
The output voltage of these ICs is fixed with high accuracy. Since the packages for these ICs are SOT-23-5,
PLP1820-6, and WLCSP-4-P2, therefore high density mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
Supply Current ......................................................Typ. 50µA
Standby Mode .......................................................Typ. 0.1µA
Dropout Voltage ....................................................Typ. 0.12V (I
OUT
=300mA,
V
OUT
=2.8V)
Ripple Rejection....................................................Typ. 80dB (f=1kHz)
Temperature-Drift Coefficient of Output Voltage ...Typ. ±20ppm/°C
Line Regulation .....................................................Typ. 0.02%/V
Output Voltage Accuracy.......................................±0.8%
Packages ..............................................................WLCSP-4-P2, PLP1820-6, SOT-23-5
Input Voltage Range .............................................1.7V to 5.25V
Output Voltage ......................................................1.2V, 1.25V, 1.3V, 1.5V, 1.8V, 1.85V, 2.5V, 2.6V, 2.7V,
2.8V, 2.85V, 2.9V, 3.0V, 3.3V
•
Built-in Fold Back Protection Circuit .....................Typ. 50mA (Current at short mode)
•
Ceramic capacitors are recommended to be used with this IC ......C
IN
=C
OUT
=1µF
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
RP102x
BLOCK DIAGRAMS
RP102xxx1B
RP102xxx1D
V
DD
V
OUT
V
DD
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, auto discharge function*, and the taping type for the ICs can be selected at the user’s
request.
The selection can be made with designating the part number as shown below;
RP102xxx1x-xx-x
↑ ↑
a b
Code
↑ ↑ ↑
c d e
←
Part Number
Contents
a
b
c
d
e
Designation of Package Type:
K: PLP1820-6
N: SOT-23-5
Z: WL-CSP4-P2
Setting Output Voltage (V
OUT
):
1.2V, 1.25V, 1.3V, 1.5V, 1.8V, 1.85V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V, 3.3V
Exceptions: 1.25V
=
RP102x121x5-xx-x, 1.85V
=
RP102x181x5-xx-x,
2.85V
=
RP102x281x5-xx-x.
Designation of Mask Option
B: active high, without auto discharge function* at OFF state.
D: active high, with auto discharge function* at OFF state.
Designation of Taping Type:
Ex: TR (refer to Taping Specifications; TR type is the standard direction.)
Designation of composition of pin plating:
-F: Lead free plating (SOT-23-5,WLCSP-4-P2)
None: Au plating (PLP1820-6)
*) When the mode is into standby with CE signal, auto discharge transistor turns on, and it makes the turn-off
speed faster than normal type.
2
RP102x
PIN CONFIGURATIONS
•
WLCSP-4-P2
Mark Side
4
3
3
•
PLP1820-6
Top View
6
4
•
SOT-23-5
5
4
4
5
6
Bump Side
Bottom View
5
4
(mark side)
1
2
2
1
1
1
2
3
3
2
1
2
3
PIN DESCRIPTION
•
WLCSP-4-P2
Pin No.
Symbol
Description
•
V
DD
CE
GND
V
OUT
Input Pin
Chip Enable Pin
Ground Pin
Output Pin
PLP1820-6*
Pin No.
Symbol
Description
1
2
3
4
1
2
3
4
5
6
V
OUT
V
OUT
GND
CE
V
DD
V
DD
Output Pin
Output Pin
Ground Pin
Chip Enable Pin
Input Pin
Input Pin
∗
Tab in the parts have GND level.
(They are connected to the back side of this IC.)
Do not connect to other wires or land patterns.
•
SOT-23-5
Pin No.
Symbol
Description
1
2
3
4
5
V
DD
GND
CE
NC
V
OUT
Input Pin
Ground Pin
Chip Enable Pin
No Connection
Output Pin
3
RP102x
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
IN
V
CE
V
OUT
I
OUT
P
D
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current
Power Dissipation (WLCSP-4-P2) *
Power Dissipation (PLP1820-6) *
Power Dissipation (SOT-23-5) *
Operating Temperature Range
Storage Temperature Range
6.0
6.0
−
0.3 to V
IN
+
0.3
V
V
V
mA
mW
°
C
°
C
300
530
420
880
−
40 to 85
−
55 to 125
Topt
Tstg
*) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
4
RP102x
ELECTRICAL CHARACTERISTICS
•
RP102xxx1B/D
V
IN
=
Set V
OUT
+
1V for V
OUT
options grater than 1.5V. V
IN
=
2.5V for V
OUT
I
OUT
=
1mA, C
IN
=
C
OUT
=
1
µ
F, unless otherwise noted.
Symbol
Item
Conditions
<
=
1.5V.
Topt=25°C
Min.
×
0.992
−
16
<
=
Typ.
Max.
×
1.008
+
16
Unit
V
OUT
I
OUT
∆
V
OUT
/
∆
I
OUT
Output Voltage
Output Current
Load Regulation
Dropout Voltage
Supply Current
Supply Current (Standby)
Line Regulation
Ripple Rejection
Input Voltage*
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down Current
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
Low Output Nch Tr. ON
Resistance (of D version)
V
IN
=
Set V
OUT
+
1V
V
OUT
> 2.0V
V
OUT
2.0V
V
mV
mA
300
1mA
1mA
<
=
<
=
I
OUT
I
OUT
<
=
<
=
150mA
300mA
10
20
50
0.1
20
40
70
2.0
0.10
mV
V
DIF
I
SS
Istandby
∆
V
OUT
/
∆
V
IN
Refer to the Electrical Characteristics by Output Voltage
I
OUT
=
0mA
V
CE
=
0V
Set V
OUT
+
0.5V
<
=
µ
A
µ
A
V
IN
<
=
5V
0.02
80
1.7
%/V
dB
RR
V
IN
∆
V
OUT
/
∆
Topt
f
=
1kHz, Ripple 0.2Vp-p
V
IN
=
Set V
OUT
+
1V, I
OUT
=
30mA
(In case that V
OUT
<
2V, V
IN
=
3V)
=
5.25
±
20
V
ppm
/
°
C
mA
−
40
°
C
<
=
Topt
<
=
85
°
C
I
lim
I
PD
V
CEH
V
CEL
en
R
LOW
V
OUT
=
0V
0.05
1.5
50
0.3
0.6
0.3
µ
A
V
V
µ
Vrms
Ω
BW
=
10Hz to 100kHz
I
OUT
=
30mA
V
IN
=
4V
V
CE
=
0V
30
30
*) When Input Voltage is 5.5V, the total operational time must be within 500hrs.
•
Electrical Characteristics by Output Voltage
Output Voltage
V
OUT
(V)
Dropout Voltage V
DIF
(V)
Condition
Typ.
Max.
Condition
Typ.
Topt=25°C
Max.
1.2V
1.5V
1.7V
2.0V
2.5V
2.8V
<
=
<
=
<
=
<
=
<
=
<
=
V
OUT
< 1.5V
V
OUT
< 1.7V
V
OUT
< 2.0V
V
OUT
< 2.5V
V
OUT
< 2.8V
V
OUT
<
=
0.145
0.110
I
OUT
=
150mA
0.100
0.085
0.070
0.060
-
0.160
0.140
0.120
0.100
0.095
I
OUT
=
300mA
0.290
0.220
0.200
0.170
0.140
0.120
0.500
0.320
0.280
0.240
0.200
0.190
3.3V
5
51单片机
