R5323x SERIES
150mA Dual LDO REGULATOR
NO.EA-089-071105
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, DFN(PLP)1820-6 and WLCSP-6-P1 package, dual LDO regulators are included in each package,
high density mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Supply Current .............................................................. Typ. 90µA (VR1, VR2)
Standby Mode ............................................................... Typ. 0.1µA (VR1, VR2)
Dropout Voltage ............................................................ Typ. 0.22V (I
OUT
=150mA
, V
OUT
=3.0V)
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)
=
=
Temperature-drift Coefficient of Output Voltage............ Typ.
±100ppm/°C
Line Regulation ............................................................. Typ.0.02%/V
Output Voltage Accuracy...............................................±2.0%
Packages ..................................................................... SOT-23-6, DFN(PLP)1820-6, WLCSP-6-P1
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
CE1
V
OUT1
Error Amp.
Vref
Current Limit
R1_1
R2_1
V
DD
GND
R1_2
Error Amp.
Vref
R2_2
Current Limit
CE2
V
OUT2
R5323xxxxB
CE1
V
OUT1
Error Amp.
Vref
Current Limit
R1_1
R2_1
V
DD
R1_2
Error Amp.
Vref
Current Limit
GND
R2_2
CE2
V
OUT2
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
a
Contents
Designation of Package Type:
N : SOT-23-6
K : DFN(PLP)1820-6
Z : WLCSP-6-P1
Setting combination of dual 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, WLCSP-6-P1)
None : Au plating (DFN(PLP)1820-6)
b
c
d
e
*) 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.
3
R5323x
PIN CONFIGURATION
•
SOT-23-6
6
5
4
•
DFN(PLP)1820-6
Top View
6
5
4
Bottom View
4
5
6
(mark side)
1
2
3
1
2
3
3
2
1
WLCSP-6-P1
Mark Side
Bump Side
1
6
6
1
2
5
5
2
3
4
4
3
PIN DESCRIPTIONS
•
SOT-23-6
Pin No.
1
2
3
4
5
6
Symbol
V
OUT1
V
DD
V
OUT2
CE2
GND
CE1
Description
Output Pin 1
Input Pin
Output Pin 2
Chip Enable Pin 2
Ground Pin
Chip Enable Pin 1
DFN(PLP)1820-6
Pin No.
1
2
3
4
5
6
Symbol
V
OUT2
V
DD
V
OUT1
GND
CE1
CE2
Description
Output Pin 2
Input Pin
Output Pin 1
Ground Pin
Chip Enable Pin 1
Chip Enable Pin 2
•
WLCSP-6-P1
Pin No.
1
2
3
4
5
6
Symbol
V
OUT1
V
DD
V
OUT2
CE2
GND
CE1
Description
Output Pin 1
Input Pin
Output Pin 2
Chip Enable Pin 2
Ground Pin
Chip Enable Pin 1
∗)
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.
4
R5323x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
CE
V
OUT
I
OUT1
I
OUT2
P
D
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current 1
Output Current 2
Power Dissipation (SOT-23-6)*
Power Dissipation (DFN(PLP)1820-6) *
Power Dissipation (WLCSP-6-P1)
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
−0.3
to 6.5
−0.3
to V
IN
+
0.3
200
200
420
880
633
−40
to 85
−55
to 125
°C
°C
mW
Unit
V
V
V
mA
mA
∗)
For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded ever for an instant under
any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation
above these absolute maximum ratings may cause degradation or permanent damage to the device.
These are stress ratings only and do not necessarily imply functional operation below these limits.
5
