R5328K SERIES
Low Voltage 3-Mode Dual 150mA LDO
NO.EA-139-111025
OUTLINE
The R5328K Series are dual 150mA voltage regulator ICs with 3-mode. The 3-mode describes that they are
the inactive standby, the active fast mode, and the active low power mode. The two active modes can be
switched over with ECO pin. With this function, the output voltage maintains the level, and the mode can be
switched over.
The minimum operating voltage is 1.4V, and the output voltage range is from 0.8V to 4.0V.
Since the package for these ICs is DFN(PLP)2020-8, high density mounting of the ICs on boards is possible.
FEATURES
•
Supply Current (Low Power Mode).......................Typ. 2.0μA×2 (VR1&VR2) (V
OUT
<2.0V)
Typ. 2.5μA×2 (VR1&VR2) (V
OUT
>
2.0V)
=
•
Supply Current (Fast Mode)..................................Typ. 75μA×2 (VR1&VR2) (V
OUT
<2.0V)
Typ. 65μA×2 (VR1&VR2) (V
OUT
>
2.0V)
=
•
Standby Mode .......................................................Typ. 0.1μA (VR1&VR2)
•
Input Voltage .........................................................1.4V to 6.0V
•
Output Voltage Range...........................................0.8V to 4.0V (0.1V steps)
(
For details, please refer to MARK INFORMATIONS.)
•
Dropout Voltage ....................................................Typ. 0.25V (I
OUT
=150mA,
V
OUT
=2.8V)
•
Ripple Rejection (Fast Mode) ...............................Typ. 70dB (f=1kHz)
•
Line Regulation (Fast Mode).................................Typ. 0.02%/V
•
Output Voltage Accuracy (Fast Mode) ..................±1.0%
•
Output Voltage Accuracy (Low Power Mode) .......±1.2%
•
Temperature-drift Coefficient of Output Voltage....Typ.
±100ppm/°C
•
Package ................................................................DFN(PLP)2020-8
•
Built-in fold-back protection circuit ........................Typ. 50mA (Current at short mode)
•
Ceramic Capacitor is recommended. ..................1.0μF
•
Built-in chip enable circuit (A/B: active high)
(Depending on V
IN
and set V
OUT
. Refer to the electrical characteristics table.)
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
R5328K
SELECTION GUIDE
The output voltage, auto discharge function, etc. for the ICs can be selected at the user’s request.
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
R5328Kxxx
∗
-TR
DFN(PLP)2020-8
5,000 pcs
Yes
Yes
xxx : The combination of output voltage for each channel can be designated by serial numbers. (from 001)
The output voltage for each channel can be set in the range from 0.8V to 4.0V in 0.1V steps.
(For details, please refer to MARK INFORMATIONS.)
∗
: The auto discharge function at off state are options as follows.
(A) without auto discharge function at off state
(B) with auto discharge function at off state
PIN CONFIGURATION
•
Top View
8
7
6
5
5
DFN(PLP)2020-8
Bottom View
6
7
8
1
2
3
4
4
3
2
1
PIN DESCRIPTIONS
•
DFN(PLP)2020-8
Pin No.
Symbol
Description
1
2
3
4
5
6
7
8
GND
V
OUT1
V
DD
V
OUT2
CE2
ECO2
ECO1
CE1
Ground Pin
Output Pin 1
Input Pin
Output Pin 2
Chip Enable Pin 2 ("H" Active)
Low Power/ Fast Mode Changer Pin2
Low Power/ Fast Mode Changer Pin1
Chip Enable Pin 1 ("H" Active)
∗
) Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
3
R5328K
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
V
IN
V
CE1
, V
CE2
V
ECO1
, V
ECO2
V
OUT1
, V
OUT2
I
OUT1
, I
OUT2
P
D
Topt
Tstg
Input Voltage
Input Voltage (CE/ECO Pin)
Output Voltage
Output Current
Power Dissipation (DFN(PLP)2020-8)
∗
Operating Temperature Range
Storage Temperature Range
6.5
−
0.3 to 6.5
−
0.3 to V
IN
+
0.3
V
V
V
mA
mW
°
C
°
C
160
880
−
40 to 85
−
55 to 125
∗
) For Power Dissipation, please refer to PACKAGE INFORMATION.
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.
4
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