R5324x SERIES
TRIPLE LDO
NO. EA-099-081006
OUTLINE
The R5324x Series are CMOS-based multi positive voltage regulator ICs with high output voltage accuracy,
low supply current, low noise, low dropout and high ripple rejection. The R5324x Series contain three voltage
regulators. Each of these voltage regulators in the R5324x Series 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.
The chip enable function contributes to prolong battery life. Further, regulators in the R5324x Series are with
low dropout voltage, excellent load transient response and line transient response, thus the R5324x series are
very suitable for the power supply for hand-held communication equipment.
Since the packages for these ICs are SON-8 and DFN(PLP)2527-10, high density mounting of the ICs on
boards is possible.
FEATURES
•
•
•
•
Supply Current .................................................................. Typ. 90μA (VR1, VR2, VR3)
Standby Current ................................................................ Typ. 0.1μA
Output Current .................................................................. Min. 200mA (VR1), 150mA (VR2), 100mA (VR3)
Dropout Voltage ................................................................ Typ. 0.23V (VR1) (I
OUT
=200mA,
V
OUT
=2.8V)
Typ. 0.22V (VR2) (I
OUT
=150mA,
V
OUT
=2.8V)
Typ. 0.15V (VR3) (I
OUT
=100mA,
V
OUT
=2.8V)
Ripple Rejection................................................................ Typ. 70dB (f=1kHz), Typ. 65dB (f=10kHz)
Input Voltage Range ......................................................... 2.0V to 6.0V
Output Voltage Range....................................................... 1.5V to 4.0V
Output Voltage Accuracy...................................................
±2.0%
Temperature-Drift Coefficient of Output Voltage ............... Typ.
±100ppm/°C
Line Regulation ................................................................. Typ.0.02%/V
Packages ......................................................................... SON-8, DFN(PLP)2527-10
Built-in fold-back protection circuit .................................... Typ.50mA (VR1), Typ.40mA (VR2, VR3)
(Current at short mode)
Ceramic capacitors are recommended to be used with this IC .....1.0μF or more
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APPLICATIONS
•
Power source for cellular phones and portable communication equipment.
•
Power source for electrical appliances such as cameras, VCRs.
•
Power source for battery-powered equipment.
1
R5324x
SELECTION GUIDE
The selection can be made with designating the part number as shown below:
R5324xxxxx-xx-x
←Part
Number
↑ ↑ ↑ ↑ ↑
a b c d e
Code
a
Contents
Designation of Package Type:
D: SON-8
K: DFN(PLP)2527-10
Setting Output Voltage (V
OUT
):
Serial Number for Voltage setting from 001
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.
Designation of Mask Option
A: active high, without auto discharge function* at OFF state.
B: 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 solder plating (SON-8)
None : Au plating
(DFN(PLP)2527-10)
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
R5324x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
CE
V
OUT
I
OUT1
I
OUT2
I
OUT3
P
D
Topt
Tstg
Input Voltage
Input Voltage (CE Pin)
Output Voltage
Output Current (V
OUT1
)
Output Current (V
OUT2
)
Output Current (V
OUT3
)
Power Dissipation (SON-8)*
Power Dissipation (DFN(PLP)2527-10)*
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
-0.3 to 6.5
-0.3 to V
IN
+0.3
230
180
180
480
910
-40 to 85
-55 to 125
°C
°C
Unit
V
V
V
mA
mA
mA
mW
∗)
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.
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