R1162x SERIES
3-MODE 150mA LDO REGULATOR
NO.EA-110-0512
OUTLINE
The R1162x Series consist of CMOS-based voltage regulator ICs with high output voltage accuracy and low
supply current. Each of these voltage regulator ICs consists of a voltage reference unit, an error amplifier,
resistors for setting output voltage, a current limit circuit, and so on. The output voltage is internally fixed with
high accuracy.
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 R1162x 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.
Since the packages for these ICs are SOT-23-5 and SON1612-6 packages, high density mounting of the ICs
on boards is possible.
FEATURES
•
Ultra-Low Supply Current..................................Typ. 5.5µA (Low Power Mode),
Typ. 70µA (Fast Transient Mode)
•
Standby Mode ...................................................Typ. 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)
Typ. 60dB (f=10kHz, FT Mode)
•
Low Temperature-Drift Coefficient of Output Voltage Typ.
±100ppm/°C
•
Excellent Line Regulation .................................Typ. 0.02%/V
•
High Output Voltage Accuracy ..........................±2.0%(±3.0% at LP Mode)
•
Small Package ................................................SOT-23-5 (Super Mini-mold), SON1612-6
•
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
=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
R1162x
BLOCK DIAGRAM
R1162xxx1B
ECO
R1162xxx1D
ECO
V
DD
V
OUT
V
DD
V
OUT
Vref
Current Limit
Vref
Current Limit
CE
GND
CE
GND
SELECTION GUIDE
The output voltage, function of auto-discharge, package, and the packing 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;
R1162xxx1x-xx
↑↑
a b
Code
a
b
↑ ↑
c d
←Part
Number
Contents
Designation of Package Type :
N:SOT-23-5 (Mini-mold) D:SON1612-6
Setting Output Voltage (V
OUT
) :
Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V is possible.
Exceptions: 1.85V=R1162x181x5, 2.85V=R1162x281x5
Designation of Chip Enable Option :
B: "H" active type.
D: "H" active type. With auto discharge function
Designation of Taping Type :
Refer to Taping Specifications;TR type is the standard direction.
c
d
2
R1162x
ELECTRICAL CHARACTERISTICS
•
R1162xxx1B/D
Item
Output Voltage
Output Voltage Deviation
between FT Mode and LP
Mode
Output Current
Load Regulation(FT Mode)
Load Regulation(LP Mode)
Dropout Voltage
Supply Current(FT Mode)
Supply Current(LP Mode)
Conditions
Min.
Typ.
Max.
Topt
=
25°C
Symbol
V
OUT
Unit
∆V
OUT
I
OUT
∆V
OUT
/
∆I
OUT
V
DIF
I
SS1
I
SS2
Istandby Supply Current (Standby)
Line Regulation(FT Mode)
∆V
OUT
/
∆V
IN
Line Regulation(LP Mode)
RR
V
IN
∆V
OUT
/
∆Topt
Ilim
I
PD
R
PD
V
CEH
V
CEL
en
en
R
LOW
Ripple Rejection(FT Mode)
Input Voltage
Output Voltage
Temperature Coefficient
Short Current Limit
CE Pull-down
Constant Current
ECO Pull-down Resistance
CE, ECO Input Voltage “H”
CE, ECO Input Voltage “L”
Output Noise (Fast Mode)
Output Noise
(Low Power Mode)
Nch On resistance for
auto-discharge
(Applied to D version)
V
OUT
V
OUT
V
IN
=
Set V
OUT
+1V
V
ECO
=
V
IN
V
Note 1
1mA
<
I
OUT
<
30mA
×0.98
×1.02
=
=
V
OUT
V
OUT
V
IN
=
Set V
OUT
+
1V V
ECO
=GND
V
Note 2
×0.97
×1.03
1mA
<
I
OUT
<
30mA
=
=
V
IN
=
Set V
OUT
+1V,
I
OUT
=30mA
0.0
1.2
%
−1.2
V
OUT
<
2.0V
=
0.0
(24)
mV
V
OUT
>
2.0V
(−24)
=
150
mA
V
IN
−
V
OUT
=
1.0V
V
IN
=Set
V
OUT
+1V,
V
ECO
=V
IN
20
40
mV
1mA
<
I
OUT
<
150mA
=
=
V
IN
=
Set V
OUT
+1V,V
ECO
=GND
20
45
mV
1mA
<
I
OUT
<
150mA
=
=
Refer to the ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
V
IN
=
Set V
OUT
+1V
70
100
µA
V
ECO
=
V
IN
,
I
OUT
=0mA
V
IN
=
Set V
OUT
+1V
5.5
9.0
µA
V
ECO
=
GND
,
I
OUT
=0mA
0.1
1.0
V
IN
=
V
CE
=
Set V
OUT
+1V
µA
Set V
OUT
+0.5V
<
V
IN
<
6.0V
=
=
0.02
0.10
%/V
I
OUT
=
30mA, V
ECO
=
V
IN
<
1.6V: 2.2V
<
V
IN
<
6.0V
V
OUT
=
=
=
Set V
OUT
+
0.5V
<
V
IN
<
6.0V
=
=
0.05
0.20
%/V
I
OUT
=
30mA, V
ECO
=
GND
<
1.6V: 2.2V
<
V
IN
<
6.0V
V
OUT
=
=
=
f
=
1kHz
70
60
f
=
10kHz,Ripple 0.2Vp-p
dB
V
IN
=
Set V
OUT
+
1V
I
OUT
=
30mA, V
ECO
=
V
IN
2.0
6.0
V
ppm
I
OUT
=
30mA
±100
<
Topt
<
85°C
/°C
−40°C
=
=
40
mA
V
OUT
=
0V
0.3
2
1.0
0.00
BW
=
10Hz to 100kHz
BW
=
10Hz to 100kHz
V
CE
=0V
5
0.6
30
6.0
0.35
µA
MΩ
V
V
µVrms
µVrms
Ω
30
40
60
4
ST - Low Power RF
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