3-MODE 150mA LDO REGULATOR
with Reverse Current Protection
R1163x SERIES
OUTLINE
The R1163x Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy and low
supply current. These ICs perform with the chip enable function and realize a standby mode with ultra low supply
current. To prevent the destruction by over current, the current limit circuit is included. The R1163x Series have
3-mode. One is standby mode with CE or standby control pin. Other two modes are realized with ECO pin™.
Fast Transient Mode (FT mode) and Low Power Mode (LP mode) are alternative with ECO pin™. Consumption
current is reduced at Low Power Mode compared with Fast Transient Mode. The output voltage is maintained
between FT mode and LP mode.
Further, the reverse current protection circuit is built-in. Therefore, if a higher voltage than V
DD
pin is forced to
the output pin, the reverse current to V
DD
pin is very small (Max. 0.1µA) , so it is suitable for backup circuit.
Since the packages for these ICs are SOT-23-5, thin SON-6, and PLP1616-6 packages, high density
mounting of the ICs on boards is possible.
FEATURES
•
Ultra-Low Supply Current ................................. Typ. 6.0µA (Low Power Mode),
Typ. 70µA (Fast Transient Mode)
•
Standby Mode .................................................. Typ. 0.6µA
•
Reverse Current ............................................... Max. 0.1µA
•
Low Dropout Voltage ........................................ Typ. 0.25V (I
OUT
=150mA
Output Voltage=3.0V Type)
•
High Ripple Rejection....................................... Typ. 70dB (f=1kHz, FT Mode)
•
Low Temperature-Drift Coefficient of Output Voltage Typ.
±100ppm/°C
•
Excellent Line Regulation................................. Typ. 0.02%/V
•
High Output Voltage Accuracy..........................
±1.5%(±2.5%
at LP Mode)
•
Small Package ................................................ SOT-23-5 (Super Mini-mold), SON-6, PLP1616-6
•
Output Voltage.................................................. Stepwise setting with a step of 0.1V
in the range of 1.5V to 4.0V is possible
•
Built-in fold-back protection circuit ................... Typ. 40mA (Current at short mode)
•
Performs with Ceramic Capacitors................... C
IN
=1.0µF,C
OUT
=Ceramic
0.47µF
APPLICATIONS
•
Precision Voltage References.
•
Power source for electrical appliances such as cameras, VCRs and hand-held communication equipment.
•
Power source for battery-powered equipment.
1
R1163x
BLOCK DIAGRAM
R1163xxx1B
R1163xxx1D
ECO
ECO
V
DD
V
OUT
V
DD
Vref
V
OUT
Vref
Current Limit
Current Limit
Reverse Detector
Reverse
Detector
CE
R1163xxx1E
GND
CE
GND
ECO
V
DD
-
+
Vref
V
OUT
CE
Current Limit
C
t Li it
Reverse Detector
GND
SELECTION GUIDE
The output voltage, the auto-discharge function, the package and the taping type for the ICs can be selected
at the user's request. The selection can be available by designating the part number as shown below;
R1163xxx1x-xx
↑↑
a b
Code
a
↑ ↑
c d
←Part
Number
Contents
Designation of Package Type :
N: SOT-23-5 (Mini-mold)
D: SON-6
K: PLP1616-6
Setting Output Voltage (V
OUT
) :
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.
New options: 2.85V type: R1163x281x5-xx, 1.85V type: R1163x181x5-xx.
Designation of Chip Enable Options:
B: "H" active type and without auto-discharge function.
D: "H" active and with auto-discharge function.
E: "H" active type and without auto-discharge function. ECO logic reverse type (Low
Power mode at ECO=”H”)
Designation of Taping Type:
Refer to Taping Specifications: TR type is the standard direction.
b
c
d
2
R1163x
ELECTRICAL CHARACTERISTICS
R1163xxx1B, D
Symbol
Item
Conditions
Min.
Typ.
Max.
Topt
=
25°C
Unit
V
OUT
V
OUT
V
IN
=
Set V
OUT
+1V
V
ECO
=
V
IN
1mA
<
I
OUT
<
30mA
×0.985
×1.015
=
=
V
OUT
Output Voltage
V
V
OUT
V
OUT
V
IN
=
Set V
OUT
+
1V V
ECO
=GND
1mA
<
I
OUT
<
30mA
×0.975
×1.025
=
=
V
IN
=
Set V
OUT
+1V,
I
OUT
=30mA
0.0
1.2
%
−1.2
Output Voltage Deviation
∆V
OUT
between FT Mode and LP Mode
V
OUT
>
2.0V
=
V
OUT
<
2.0V
-24
0
+24
mV
=
I
OUT
Output Current
150
mA
V
IN
−
V
OUT
=
1.0V
V
IN
=Set
V
OUT
+1V,
V
ECO
=V
IN
Load Regulation (FT Mode)
20
40
1mA
<
I
OUT
<
150mA
∆V
OUT
/
=
=
mV
∆I
OUT
V
IN
=
Set V
OUT
+1V,V
ECO
=GND
Load Regulation (LP Mode)
20
45
1mA
<
I
OUT
<
150mA
=
=
V
DIF
Dropout Voltage
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
V
IN
=
Set V
OUT
+1V
70
100
I
SS1
Supply Current (FT Mode)
µA
V
ECO
=
V
IN
,
I
OUT
=0mA
V
IN
=
Set V
OUT
+1V
6.0
10.0
I
SS2
Supply Current (LP Mode)
µA
V
ECO
=
GND
,
I
OUT
=0mA
V
IN
=
Set V
OUT
+1V,
V
CE
=
GND
0.6
1.0
Istandby Supply Current (Standby)
µA
V
ECO
=GND
Set V
OUT
+0.5V
<
V
IN
<
6.0V
=
=
0.02
0.10
Line Regulation (FT Mode)
I
OUT
=
30mA, V
ECO
=
V
IN
∆V
OUT
/
%/V
∆V
IN
Set V
OUT
+
0.5V
<
V
IN
<
6.0V
=
=
0.05
0.20
Line Regulation (LP Mode)
I
OUT
=
30mA, V
ECO
=
GND
f
=
1kHz
70
f
=
10kHz,
60
Ripple 0.2Vp-p
dB
RR
Ripple Rejection (FT Mode)
V
IN
=
Set V
OUT
+
1V
I
OUT
=
30mA, V
ECO
=
V
IN
If V
OUT
<
1.7V,then
=
V
IN
=
Set V
OUT
+1V
V
IN
Input Voltage
2.0
6.0
V
ppm
I
OUT
=
30mA
∆V
OUT
/ Output Voltage
±100
Temperature Coefficient
/°C
∆T
−40°C
<
Topt
<
85°C
=
=
40
mA
I
LIM
Short Current Limit
V
OUT
=
0V
CE Pull-down
I
PD
0.3
0.6
µA
Constant Current
R
PD
ECO Pull-down Resistance
2
5
30
MΩ
V
CEH
CE, ECO Input Voltage “H”
1.0
6.0
V
V
CEL
CE, ECO Input Voltage “L”
0.0
0.4
V
Output Noise ”H” (FT Mode) BW
=
10Hz to 100kHz
30
en
µVrms
Output Noise ”L” (LP Mode)
40
BW
=
10Hz to 100kHz
Nch Tr. On Resistance for
60
R
LOW
auto-discharge function
Ω
V
CE
=0V
(Applied only to D version)
I
REV
Reverse Current
V
OUT
>0.5V, 0V
<
V
IN
<
6V
0.0
0.1
µA
=
=
5
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