HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.4.1_00
Electrical Characteristics
Table 4
(Ta=25 °C unless otherwise specified)
Test
Item
Symbol
VOUT(E)
Condition
Min.
Typ.
Max.
Unit
circuit
1
VOUT(S) VOUT(S) VOUT(S)
Output voltage*1
VIN =VOUT(S)+1.0 V, IOUT=50 mA
V
×
0.98
×
1.02
Output current*2
Dropout voltage*3
IOUT
Vdrop
VIN
≥
VOUT(S)+1.0 V
150*5
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
mA
V
V
V
V
3
1
1
1
1
1
1
IOUT = 50 mA
1.5 V
1.8 V
2.0 V
2.5 V
3.0 V
3.3 V
≤
≤
≤
≤
≤
≤
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
≤
≤
≤
≤
≤
≤
1.7 V
1.9 V
2.4 V
2.9 V
3.2 V
6.0 V
0.17
0.16
0.15
0.13
0.12
0.11
0.33
0.29
0.26
0.20
0.15
0.14
V
V
ΔVOUT1
Line regulation
Load regulation
VOUT(S)+0.5 V
≤
VIN
VIN=VOUT(S)+1.0 V, 1.0 mA
VIN=VOUT(S)+1.0 V, IOUT =50 mA,
≤
10 V, IOUT=50 mA
0.05
12
0.2
40
⎯
%/V
1
1
1
⎯
⎯
⎯
ΔVIN•VOUT
ΔVOUT2
≤
IOUT 80 mA
≤
mV
ΔVOUT
Output voltage
ppm/
°C
±100
temperature coefficient*4
–40 Ta 85
°C
≤
≤
°
C
ΔTa• VOUT
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
VIN=VOUT(S)+1.0 V, ON/OFF pin=ON,
No load
VIN=VOUT(S)+1.0 V, ON/OFF pin =OFF,
No load
ISS1
⎯
90
140
μ
A
2
ISS2
VIN
⎯
2.0
1.5
0.1
⎯
1.0
10
⎯
μA
2
⎯
4
⎯
V
VSH
VIN=VOUT(S)+1.0 V, RL=1.0 k
Ω
Ω
⎯
V
V
VSL
ISH
VIN=VOUT(S)+1.0 V, RL=1.0 k
⎯
⎯
⎯
⎯
0.3
0.1
0.1
4
4
4
VIN=VOUT(S)+1.0 V, VON/OFF=7.0 V
VIN=VOUT(S)+1.0 V, VON/OFF=0 V
–0.1
–0.1
μA
ISL
μA
input current “L”
RR
Ripple rejection
1.5 V
3.4 V
5.1 V
≤
VOUT(S)
VOUT(S)
VOUT(S)
≤
3.3 V
5.0 V
6.0 V
⎯
⎯
⎯
70
65
60
⎯
⎯
⎯
dB
dB
dB
5
5
5
VIN=VOUT(S)+1.0 V,
f = 1.0 kHz,
≤
≤
ΔVrip=0.5 V rms,
IOUT=50 mA
≤
≤
*1. VOUT(S): Specified output voltage
VOUT(E): Actual output voltage at the fixed load
The output voltage when fixing IOUT(=50 mA) and inputting VOUT(S)+1.0 V
*2. Output current at which output voltage becomes 95 % of VOUT after gradually increasing output current.
*3. Vdrop=VIN1−(VOUT×0.98)
VIN1 is the input voltage at which output voltage becomes 98 % ofVOUT after gradually decreasing input voltage.
*4. Temperature change ratio in the output voltage [mV/°C] is calculated by using the following equation.
ΔVOUT
ΔTa
ΔVOUT
*2
[
mV/°C *1
]
= VOUT(S)
[
V
]
×
[
ppm/°C *3
÷1000
]
ΔTa • VOUT
*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 ]
