R5323x SERIES
150mA Dual LDO REGULATOR
NO.EA-089-081107
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
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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
Input Voltage Range ..................................................... 2.0V to 6.0V
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
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 solder 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
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
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.
5
Microcontroller MCU
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