R5326x SERIES
Automatic Mode Shift 2ch 150mA LDO
NO.EA-138-070806
OUTLINE
The R5326x Series are CMOS-based voltage regulator ICs with high output voltage accuracy, Typ. 5.5µA low
supply current, and remarkably improved transient response compared with the conventional low supply current
voltage regulators. The supply current of IC itself is automatically shifts between fast mode and low power mode
depending on the load current. (The current threshold is fixed internally.) Each of these voltage regulator ICs
consists of a voltage reference unit, an error amplifier, resistors for setting the output voltage, a current limit
circuit for preventing from the destruction by an over current, and so on.
The chip enable function realizes the standby mode with ultra low supply current.
Since the packages for these ICs are SOT-23-6 and PLP1820-6, and chip size package, WLCSP-6-P1, 2ch
LDO regulators are included in each package, high density mounting of the ICs on boards is possible.
FEATURES
Supply Current (Low Power Mode)...................Typ. 5.5µA×2 (VR1&VR2) (I
OUT
=0mA)
Supply Current (Fast Mode)..............................Typ. 50µA×2 (VR1&VR2) (I
OUT
=10mA)
Standby Current ................................................Typ. 0.1µA (VR1&VR2)
Input Voltage .....................................................1.4V to 6.0V
Output Voltage ..................................................0.8V to 4.2V
Dropout Voltage ................................................Typ. 0.19V (I
OUT
=150mA,
V
OUT
=2.8V)
Output Voltage Accuracy...................................±1.0% (V
OUT
>
1.5V)
=
Ripple Rejection................................................Typ. 70dB (f=1kHz)
Typ. 60dB (f=10kHz)
•
Line Regulation .................................................Typ. 0.02%/V
•
Packages .........................................................WLCSP-6-P1, PLP1820-6, SOT-23-6
•
Built-in fold-back protection circuit ....................Typ. 50mA (Current at short mode)
•
Ceramic Capacitor is recommended. ..............1.0µF to 3.3µF
(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
R5326x
BLOCK DIAGRAMS
R5326xxxxA
CE1
V
OUT1
Error
Amp.
R1_1
Vref
Current Limit
R2_1
V
DD
Error
Amp.
GND
R1_2
Vref
Current Limit
R2_2
CE2
V
OUT2
R5326xxxxB
CE1
V
OUT1
Error
Amp.
R1_1
Vref
Current Limit
R2_1
V
DD
Error
Amp.
GND
R1_2
Vref
Current Limit
R2_2
CE2
V
OUT2
2
R5326x
SELECTION GUIDE
The output voltage, auto discharge function*, 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;
R5326xxxxx-xx-x
←Part
Number
↑ ↑ ↑ ↑ ↑
a b c d e
Code
a
Contents
Designation of Package Type:
N: SOT-23-6
K: PLP1820-6
Z: WLCSP-6-P1
Setting combination of 2ch Output Voltage (V
OUT
):
Serial Number for Voltage Setting, Stepwise setting with a step of 0.1V in the range of
0.8V to 4.2V is possible for each channel.
Designation of Mask Option:
A: without auto discharge function* at OFF state.
B: with auto discharge function* at OFF state.
Designation of Taping Type:
Ex. TR (refer to Taping Specifications; for SOT-23-6 and PLP1820-6),
E2 (for WLCSP-6-P1)
Designation of composition of plating:
−F
: Lead free plating (SOT-23-6, WLCSP-6-P1)
None : Au plating (PLP1820-6)
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
R5326x
PIN CONFIGURATIONS
SOT-23-6
Top View
6
5
4
6
5
4
PLP1820-6
Bottom View
4
5
6
1
WLCSP-6-P1
Mark Side
Bump Side
6
6
1
(mark side)
2
5
5
2
3
1
2
3
1
2
3
3
2
1
4
4
3
PIN DESCRIPTIONS
•
SOT-23-6, 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
•
PLP1820-6
Pin No.
1
2
3
4
5
6
Symbol
V
OUT2
V
DD
V
OUT1
CE1
GND
CE2
Description
Output Pin 2
Input Pin
Output Pin 1
Chip Enable Pin 1
Ground Pin
Chip Enable Pin 2
∗
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.
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
Power Dissipation (SOT-23-6) *
1
Power Dissipation (PLP1820-6) *
1
Power Dissipation (WLCSP-6-P1) *
1
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
420
880
633
−40
to 85
−55
to 125
°C
°C
mW
Unit
V
V
V
mA
*1) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
4
R5326x
ELECTRICAL CHARACTERISTICS
•
R5326xxxxA/B
Topt=25°C
VR1/VR2
Symbol
V
OUT
I
OUT
Item
Output Voltage
Output Current
Conditions
V
IN
−V
OUT
=1V
I
OUT
=1mA
V
IN
−V
OUT
=1V
V
IN
−V
OUT
=1V
1mA
<
I
OUT
<
150mA
=
=
0.8V
0.9V
1.0V
V
DIF
Dropout Voltage
I
OUT
=150mA
1.2V
1.5V
2.0V
Supply Current
(Low Power Mode)
Supply Current (Fast Mode)
Standby Current
Low Power Mode
Current threshold
Fast Response Mode
Current threshold
<
=
<
=
<
=
<
=
<
=
<
=
MIN.
×0.99
−15
150
<
=
TYP.
MAX.
×1.01
+15
Unit
V
mV
mA
V
OUT
>
1.5V
V
OUT
1.5V
∆V
OUT
/∆I
OUT
Load Regulation
80
0.62
0.58
0.48
0.40
0.31
0.22
0.19
5.5
50
0.1
0.6
3
±0.02
70
±0.2
1.0
0.87
0.78
0.69
0.59
0.48
0.37
0.27
16
mV
V
OUT
<0.9V
V
OUT
<1.0V
V
OUT
<1.2V
V
OUT
<1.5V
V
OUT
<2.0V
V
OUT
<2.8V
<
=
V
2.8
I
SS1
I
SS2
I
standby
I
OUTL
I
OUTH
V
OUT
V
IN
−V
OUT
=1V,
I
OUT
=0mA
V
IN
−V
OUT
=1V,
I
OUT
=10mA
V
IN
−V
OUT
=1V,
V
CE1
=V
CE2
=GND
V
IN
−V
OUT
=1V,
I
OUT
=30mA
to 1µA
V
IN
−V
OUT
=1V,
I
OUT
=1µA
to 30mA
V
OUT
+0.5V
<
V
IN
<
6V
=
=
I
OUT
=30mA
(∗V
IN
>
1.8V)
=
Ripple 0.2Vp-p,
V
IN
−V
OUT
=1V,
f=1kHz
I
OUT
=30mA
(In case that
V
OUT
<1.5V,
f=10kHz
V
IN
−V
OUT
=1.5V)
1.4
I
OUT
=30mA,
−40°C
<
T
opt
=
V
OUT
=0V
0.15
1.0
0
BW=10Hz to 100kHz
<
=
µA
µA
µA
mA
mA
%/V
∆V
OUT
/∆V
IN
Line Regulation
RR
Ripple Rejection
dB
60
6.0
±100
50
0.30
0.45
6.0
0.4
30
40
V
ppm/
°C
mA
µA
V
V
µVrms
Ω
V
IN
∆V
OUT
/∆T
opt
I
lim
I
PD
V
CEH
V
CEL
en
R
LOW
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down Current
CE Input Voltage "H"
CE Input Voltage "L"
Output Noise
Low Output Nch Tr.
ON Resistance (of B version)
85°C
5
PCB设计
