Rev.4.1
_00
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1111/1121 Series
Electrical Characteristics
Table 6
(Ta
=
25
°C
unless otherwise specified)
Item
Output voltage
*1
Output current
*2
Dropout voltage
*3
Symbol
V
OUT(E)
I
OUT
V
drop
Conditions
V
IN
=
V
OUT(S)
+
1.0 V, I
OUT
=
30 mA
V
IN
≥
V
OUT(S)
+
1.0 V
I
OUT
=
100 mA
1.5 V
≤
V
OUT(S)
≤
1.9 V
2.0 V
≤
V
OUT(S)
≤
2.4 V
2.5 V
≤
V
OUT(S)
≤
2.7 V
2.8 V
≤
V
OUT(S)
≤
3.3 V
3.4 V
≤
V
OUT(S)
≤
5.5 V
V
OUT(S)
+
0.5 V
≤
V
IN
≤
6.5 V,
I
OUT
=
30 mA
V
IN
=
V
OUT(S)
+
1.0 V,
1.0 mA
≤
I
OUT
≤
80 mA
V
IN
=
V
OUT(S)
+
1.0 V, I
OUT
=
10 mA,
−40°C ≤
Ta
≤
85°C
V
IN
=
V
OUT(S)
+
1.0 V, ON/OFF pin
=
ON,
no load
V
IN
=
V
OUT(S)
+
1.0 V, ON/OFF pin
=
OFF,
no load
⎯
V
IN
=
V
OUT(S)
+
1.0 V, R
L
=
1.0 kΩ
V
IN
=
V
OUT(S)
+
1.0 V, R
L
=
1.0 kΩ
V
IN
=
6.5 V, V
ON/OFF
=
6.5 V
V
IN
=
6.5 V, V
ON/OFF
=
0 V
V
IN
=
V
OUT(S)
+
1.0 V, f
=
1.0 kHz,
ΔV
rip
=
0.5 Vrms, I
OUT
=
30 mA
V
IN
=
V
OUT(S)
+
1.0 V, ON/OFF pin
=
ON,
V
OUT
=
0 V
Min.
V
OUT(S)
×
0.99
150
*5
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
2.0
1.5
⎯
−0.1
−0.1
⎯
⎯
Typ.
V
OUT(S)
⎯
0.60
0.35
0.24
0.20
0.17
0.05
20
±100
35
0.1
⎯
⎯
⎯
⎯
⎯
70
250
Max.
V
OUT(S)
×
1.01
⎯
1.40
0.70
0.35
0.30
0.26
0.2
40
⎯
65
1.0
6.5
⎯
0.3
0.1
0.1
⎯
⎯
Unit
V
mA
V
V
V
V
V
%/V
mV
ppm
/
°C
μA
1
V
V
V
μA
μA
dB
mA
Test
Circuit
1
3
1
1
1
1
1
1
1
1
2
2
⎯
4
4
4
4
5
3
Line regulation
Load regulation
Output voltage
*4
temperature coefficient
Current consumption
during operation
Current consumption
during shutdown
Input voltage
Shutdown pin
input voltage “H”
Shutdown pin
input voltage “L”
Shutdown pin
input current “H”
Shutdown pin
input current “L”
Ripple rejection
Short-circuit current
Δ
V
OUT1
Δ
V
IN
•
V
OUT
ΔV
OUT2
Δ
V
OUT
Δ
Ta
•
V
OUT
I
SS1
I
SS2
V
IN
V
SH
V
SL
I
SH
I
SL
RR
I
short
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(= 30 mA) and inputting V
OUT(S)
+
1.0 V
*2.
The output current at which the output voltage becomes 95% of V
OUT(E)
after gradually increasing the output current.
*3.
V
drop
=
V
IN1
−
(V
OUT3
×
0.98)
V
OUT3
is the output voltage when V
IN
=
V
OUT(S)
+
1.0 V and I
OUT
=
100 mA.
V
IN1
is the input voltage at which the output voltage becomes 98% of V
OUT3
after gradually decreasing the input
voltage.
*4.
The change in temperature [mV/°C] is calculated using the following equation.
Δ
V
OUT
[
mV/
°
C
]
*1
=
V
OUT(S)
[
V
]
*2
× Δ
V
OUT
[
ppm/
°
C
]
*3
÷
1000
Δ
Ta
Δ
Ta
•
V
OUT
*1.
The change in temperature of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the
power dissipation of the package when the output current is large.
This specification is guaranteed by design.
Seiko Instruments Inc.
9
SII [ SEIKO INSTRUMENTS INC ]
