HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.4.1
_00
Electrical Characteristics
Table 4
Item
Output voltage
*1
Output current
*2
Dropout voltage
*3
Symbol
V
OUT(E)
I
OUT
V
drop
Condition
V
IN
=V
OUT(S)
+1.0 V, I
OUT
=50 mA
V
IN
≥V
OUT(S)
+1.0 V
I
OUT
= 50 mA
1.5 V
≤V
OUT(S)
≤1.7
V
1.8 V
≤V
OUT(S)
≤1.9
V
2.0 V
≤V
OUT(S)
≤2.4
V
2.5 V
≤V
OUT(S)
≤2.9
V
3.0 V
≤V
OUT(S)
≤3.2
V
3.3 V
≤V
OUT(S)
≤6.0
V
(Ta=25
°C
unless otherwise specified)
Test
Min.
Typ.
Max.
Unit
circuit
V
OUT(S)
×
0.98
150
*5
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
2.0
1.5
⎯
–0.1
–0.1
⎯
⎯
⎯
V
OUT(S)
⎯
0.17
0.16
0.15
0.13
0.12
0.11
0.05
12
±100
90
0.1
⎯
⎯
⎯
⎯
⎯
70
65
60
V
OUT(S)
×
1.02
⎯
0.33
0.29
0.26
0.20
0.15
0.14
0.2
40
⎯
140
1.0
10
⎯
0.3
0.1
0.1
⎯
⎯
⎯
V
mA
V
V
V
V
V
V
%/V
mV
ppm/
°C
μA
μA
V
V
V
μA
μA
dB
dB
dB
1
3
1
1
1
1
1
1
1
1
1
2
2
⎯
4
4
4
4
5
5
5
Line regulation
Load regulation
Output voltage
temperature coefficient
*4
Current consumption
during operation
Current consumption
when shutdown
Input voltage
ON/OFF pin
input voltage “H”
ON/OFF pin
input voltage “L”
ON/OFF pin
input current “H”
ON/OFF pin
input current “L”
Ripple rejection
Δ
V
OUT1
Δ
V
IN
•
V
OUT
ΔV
OUT2
Δ
V
OUT
Δ
Ta
•
V
OUT
V
OUT(S)
+0.5 V
≤V
IN
≤10
V, I
OUT
=50 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
=50 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
=V
OUT(S)
+1.0 V, V
ON/OFF
=7.0 V
V
IN
=V
OUT(S)
+1.0 V, V
ON/OFF
=0 V
V
IN
=V
OUT(S)
+1.0 V,
f = 1.0 kHz,
ΔV
rip
=0.5 V rms,
I
OUT
=50 mA
1.5 V
≤V
OUT(S)
≤3.3
V
3.4 V
≤V
OUT(S)
≤5.0
V
5.1 V
≤V
OUT(S)
≤6.0
V
I
SS1
I
SS2
V
IN
V
SH
V
SL
I
SH
I
SL
RR
*1.
V
OUT(S)
: Specified output voltage
V
OUT(E)
: Actual output voltage at the fixed load
The output voltage when fixing I
OUT
(=50 mA) and inputting V
OUT(S)
+1.0 V
*2.
Output current at which output voltage becomes 95 % of V
OUT
after gradually increasing output current.
*3.
V
drop
=V
IN1
−(V
OUT
×0.98)
V
IN1
is the input voltage at which output voltage becomes 98 % of V
OUT
after gradually decreasing input voltage.
*4.
Temperature change ratio in the output voltage [mV/°C] is calculated by using the following equation.
ΔV
OUT
[
mV/
°
C
]
*1
=
V
OUT(S)
[
V
]
*2
×
ΔV
OUT
[
ppm/
°
C
]
*3
÷
1000
ΔTa
ΔTa
•
V
OU
T
*1.
Temperature change ratio of the output voltage
*2.
Specified output voltage
*3.
Output voltage temperature coefficient
*5.
The output current can be supplied at least to 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 load is large.
This specification is guaranteed by design.
6
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
