R5324D SERIES
CMOS 3ch-LDOs for RF Unit
NO. EA-099-0606
OUTLINE
The R5324D 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 R5324D Series contain three voltage
regulators. Each of these voltage regulators in the R5324D 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 R5324D Series are with
low dropout voltage, excellent load transient response and line transient response, thus the R5324D series are
very suitable for the power supply for hand-held communication equipment.
Since the package for these ICs is SON-8, high density mounting of the ICs on boards is possible.
FEATURES
•
Low Supply Current .......................................................... Typ. 90µA (VR1, VR2, VR3)
•
Low Standby Current ........................................................ Typ. 0.1µA
•
Low Dropout Voltage......................................................... Typ. 0.23V (VR1) (I
OUT
=200mA,V
OUT
=3.0V)
Typ. 0.22V (VR2) (I
OUT
=150mA,V
OUT
=3.0V)
Typ. 0.15V (VR3) (I
OUT
=100mA,V
OUT
=3.0V)
•
High Ripple Rejection ....................................................... Typ. 70dB (f=1kHz),Typ. 65dB (f=10kHz),
•
High Output Voltage Accuracy ..........................................
±2.0%
•
Low Temperature-Drift Coefficient of Output Voltage........ Typ.
±100ppm/°C
•
Excellent Line Regulation ................................................. Typ.0.02%/V
•
Excellent Load Transient Response and Line Transient Response
•
Small Package ................................................................ SON-8
•
Built-in fold-back protection circuit .................................... Typ.50mA (VR1), Typ.40mA (VR2,VR3)
•
Ceramic Capacitor Recommended for Output 1.0µF or more
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
R5324D
SELECTION GUIDE
The selection can be made with designating the part number as shown below:
R5324Dxxxx-xx-x
←Part
Number
↑ ↑ ↑ ↑
a b c d
Code
a
b
c
d
Contents
Serial Number for Voltage setting from 001
Alphabetical Code for Mask Versions
A: Standard
B: With auto discharge function at off state
Designation of Taping Type
(TR is described as standard.)
Designation of Composition of pin plating.
-F : Lead free plating
3
R5324D
PIN CONFIGURATIONS
SON-8
Top View
8
7
6
5
Bottom View
5
6
7
8
1
2
3
4
4
3
2
1
PIN DESCRIPTIONS
Pin No
1
2
3
4
5
6
7
8
Symbol
V
DD
CE1
CE2
CE3
GND
V
OUT3
V
OUT2
V
OUT1
Input Pin
Chip Enable Pin 1
Chip Enable Pin 2
Chip Enable Pin 3
Ground Pin
Output Pin 3
Output Pin 2
Output Pin 1
Pin Description
* 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.
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)*
Operating Temperature Range
Storage Temperature Range
Item
Rating
6.5
-0.3~V
IN
+0.3
-0.3~V
IN
+0.3
230
180
180
480
-40~85
-55~125
Unit
V
V
V
mA
mA
mA
mW
°C
°C
∗)
For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
4
Automotive Electronics
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