R5323x SERIES
150mA 2ch LDO REGULATOR
NO.EA-089-0607
OUTLINE
The R5323x 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 current limit circuit, and a chip enable
circuit.
These ICs perform with low dropout voltage due to built-in transistor with low ON resistance, and a chip enable
function prolongs the battery life of each system. The line transient response and load transient response of the
R5323x 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 internally fixed with high accuracy. Since the packages for these ICs are
SOT-23-6, PLP1820-6 and WL-CSP-6 package, 2ch LDO regulators are included in each package, high density
mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Low Supply Current ...................................................... Typ. 90µA (VR1, VR2)
Standby Mode ............................................................... Typ. 0.1µA (VR1, VR2)
Low Dropout Voltage..................................................... Typ. 0.22V (I
OUT
=150mA
, Output Voltage Type)
High Ripple Rejection ...............................Typ. 75dB(V
OUT
<
2.4V) , Typ. 70dB(V
OUT
<
2.5V) (f=1kHz)
=
=
Typ. 65dB(V
OUT
<
2.4V) , Typ. 60dB(V
OUT
<
2.5V) (f=10kHz)
=
=
Low Temperature-drift Coefficient of Output Voltage .... Typ.
±100ppm/°C
Excellent Line Regulation ............................................. Typ.0.02%/V
High Output Voltage Accuracy ......................................±2.0%
Small Packages .......................................................... SOT-23-6, PLP1820-6, WL-CSP-6
Output Voltage ..............................................................Stepwise setting with a step of 0.1V in the range of
1.5V to 4.0V is possible
Built-in chip enable circuit (A/B: active high)
Built-in fold-back protection circuit ................................ Typ. 40mA (Current at short mode)
Ceramic Capacitor is recommended. (1.0µF or more)
APPLICATIONS
•
Power source for handheld communication equipment.
•
Power source for electrical appliances such as cameras, VCRs and camcorders.
•
Power source for battery-powered equipment.
1
R5323x
BLOCK DIAGRAMS
R5323xxxxA
Error Amp.
Vref
Current Limit
R1_1
R2_1
R1_2
Error Amp.
Vref
R2_2
Current Limit
R5323xxxxB
Error Amp.
Vref
Current Limit
R1_1
R2_1
R1_2
Error Amp.
Vref
Current Limit
R2_2
2
R5323x
SELECTION GUIDE
The output voltage, mask option, 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;
R5323xxxxx-xx-x
←
Part Number
↑ ↑ ↑ ↑ ↑
a b c d e
Code
Contents
a
b
c
d
e
Designation of Package Type:
N : SOT-23-6
K : PLP1820-6
Z : WL-CSP-6
Setting combination of 2ch Output Voltage (V
OUT
) : Serial Number for Voltage Setting,
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible for each channel.
Designation of Mask Option:
A version: without auto discharge function at OFF state.
B version: 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 plating:
−
F : Lead free plating (SOT-23-5,WL-CSP-6)
None : Au plating (PLP1820-6)
PIN CONFIGURATION
SOT-23-6
6
5
4
PLP1820-6
Top View
6
5
4
WLCSP-6
Bottom View
4
5
6
CE1
6
1
V
OUT1
CE1
GND
(mark side)
CE2
GND
V
OUT2
5
2
V
DD
V
OUT1
V
DD
CE2
4
3
V
OUT2
1
2
3
1
2
3
3
2
1
3
R5323x
PIN DESCRIPTIONS
•
SOT-23-6
Pin No.
Symbol
Description
PLP1820-6
Pin No.
Symbol
Description
1
2
3
4
5
6
V
OUT1
V
DD
V
OUT2
CE2
GND
CE1
Output Pin 1
Input Pin
Output Pin 2
Chip Enable Pin 2
Ground Pin
Chip Enable Pin 1
1
2
3
4
5
6
V
OUT2
V
DD
V
OUT1
GND
CE1
CE2
Output Pin 2
Input Pin
Output Pin 1
Ground Pin
Chip Enable Pin 1
Chip Enable Pin 2
•
* Tab in the
parts have GND level.
(They are connected to the reverse side of this IC.)
Do not connect to other wires or land patterns.
WLCSP-6
Pin No.
Symbol
Description
1
2
3
4
5
6
V
OUT1
V
DD
V
OUT2
CE2
GND
CE1
Output Pin 1
Input Pin
Output Pin 2
Chip Enable Pin 2
Ground Pin
Chip Enable Pin 1
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
IN
V
CE
V
OUT
I
OUT1
I
OUT2
P
D
Topt
Tstg
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current 1
Output Current 2
Power Dissipation (SOT-23-6)*1
Power Dissipation (PLP1820-6) *1
Power Dissipation (WL-CSP-6)
Operating Temperature Range
Storage Temperature Range
6.5
6.5
−
0.3 to V
IN
+
0.3
V
V
V
mA
mA
mW
°
C
°
C
200
200
420
880
633
−
40 to 85
−
55 to 125
∗
1 For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
4
R5323x
ELECTRICAL CHARACTERISTICS
•
R5323xxxxA/B
Topt=25°C
Symbol
Item
Conditions
Min.
Typ.
Max.
Unit
V
OUT
I
OUT
∆
V
OUT
/
∆
I
OUT
Output voltage
Output Current
Load regulation
Dropout Voltage
Supply Current
Supply Current(Standby)
Line regulation
V
IN
=
Set V
OUT
+
1V
1mA
<
I
OUT
<
30mA
=
=
V
IN
−
V
OUT
=
1.0V
V
IN
=
Set V
OUT
+
1V
1mA
<
I
OUT
<
150mA
=
=
V
IN
=
Set V
OUT
+
1V
V
IN
=
Set V
OUT
+
1V
V
CE
=
GND
Set V
OUT
+
0.5V
I
OUT
=
30mA
<
=
V
OUT
×
0.98
150
15
V
OUT
×
1.02
V
mA
40
mV
V
DIF
I
SS
Istandby
∆
V
OUT
/
∆
V
IN
Refer to the Electrical Characteristics by Output Voltage
90
0.1
V
IN
<
=
120
1.0
0.10
µ
A
µ
A
6.0V
0.02
75
%/V
RR
Ripple Rejection
Ripple 0.5Vp
−
p
V
IN
=
Set V
OUT
+
1V
I
OUT
=
30mA
(In case that V
OUT
<
1.7V,
=
V
IN
=
Set V
OUT
+
1.2V)
2.0
I
OUT
=
30mA
−
40°C
<
Topt
=
V
OUT
=
0V
0.7
1.5
0.0
BW
=
10Hz to 100kHz
V
CE
=
0V
<
=
∗
Note1
∗
Note2
65
dB
V
IN
∆
V
OUT
/
∆
Topt
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
Pull-down resistance for CE pin
6.0
±
100
V
ppm
/
°
C
mA
85°C
Ilim
R
PD
V
CEH
V
CEL
en
R
LOW
40
2.0
8.0
6.0
0.3
30
60
M
Ω
V
V
µ
Vrms
Ω
CE Input Voltage “H”
CE Input Voltage “L”
Output Noise
Low Output Nch Tr. ON
Resistance (of B version)
∗
Note1: f
=
1kHz, 70dB as to V
OUT
>
2.5V Output type.
=
∗
Note2: f
=
10kHz, 60dB as to V
OUT
>
2.5V Output type.
=
5
