HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1111/1121 Series
Rev.4.1_00
Electrical Characteristics
Table 6
(Ta = 25 °C unless otherwise specified)
Test
Circuit
Item
Symbol
VOUT(E)
Conditions
Min.
Typ.
Max.
Unit
VOUT(S)
VOUT(S)
VOUT(S)
Output voltage*1
VIN
VIN
=
VOUT(S)
+
1.0 V, IOUT
1.0 V
= 30 mA
V
1
×
0.99
×
1.01
Output current*2
Dropout voltage*3
IOUT
≥
=
VOUT(S)
+
150*5
⎯
⎯
⎯
mA
V
3
1
1
1
1
1
Vdrop
IOUT
100 mA
1.5 V
≤
≤
≤
≤
≤
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
VOUT(S)
≤
≤
≤
≤
≤
1.9 V
2.4 V
2.7 V
3.3 V
5.5 V
0.60
0.35
0.24
0.20
0.17
1.40
0.70
0.35
0.30
0.26
2.0 V
2.5 V
2.8 V
3.4 V
⎯
⎯
⎯
⎯
V
V
V
V
ΔVOUT1
VOUT(S)
IOUT 30 mA
VIN
1.0 mA
+ 0.5 V ≤ VIN ≤ 6.5 V,
Line regulation
Load regulation
⎯
⎯
⎯
⎯
0.05
20
0.2
40
⎯
% / V
1
1
1
2
=
=
ΔVIN•VOUT
VOUT2
ΔVOUT
VOUT(S)
+
1.0 V,
80 mA
1.0 V, IOUT
85
Δ
mV
≤
IOUT
≤
Output voltage
VIN
=
°
VOUT(S)
Ta
VOUT(S)
+
≤
=
10 mA,
ppm
/ °C
±100
temperature coefficient*4
−40
C
≤
°
C
ΔTa•VOUT
Current consumption
during operation
Current consumption
during shutdown
Input voltage
VIN
=
+
1.0 V, ON/OFF pin
1.0 V, ON/OFF pin
⎯
=
=
ON,
ISS1
35
65
μA
no load
VIN VOUT(S)
no load
=
+
OFF,
ISS2
VIN
⎯
0.1
⎯
1.0
6.5
⎯
1
2
⎯
4
2.0
1.5
V
V
Shutdown pin
input voltage “H”
Shutdown pin
input voltage “L”
Shutdown pin
input current “H”
Shutdown pin
VSH
VIN
VIN
VIN
=
=
=
VOUT(S)
VOUT(S)
+
+
1.0 V, RL
1.0 V, RL
=
=
1.0 k
1.0 k
Ω
Ω
⎯
VSL
ISH
ISL
⎯
⎯
⎯
0.3
0.1
0.1
⎯
V
4
4
4
5
3
6.5 V, VON/OFF
6.5 V, VON/OFF
=
=
6.5 V
0 V
−
0.1
0.1
μ
A
A
VIN
VIN
=
=
−
⎯
μ
input current “L”
VOUT(S)
0.5 Vrms, IOUT
VOUT(S) 1.0 V, ON/OFF pin
0 V
+
1.0 V, f
=
1.0 kHz,
RR
Ishort
Ripple rejection
⎯
⎯
70
dB
Δ
Vrip
VIN
VOUT
=
= 30 mA
=
+
=
ON,
Short-circuit current
250
⎯
mA
=
*1. VOUT(S): Specified output voltage
VOUT(E): Actual output voltage at the fixed load
The output voltage when fixing IOUT(= 30 mA) and inputting VOUT(S) + 1.0 V
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. Vdrop = VIN1 − (VOUT3 × 0.98)
VOUT3 is the output voltage when VIN = VOUT(S) + 1.0 V and IOUT = 100 mA.
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input
voltage.
*4. The change in temperature [mV/°C] is calculated using the following equation.
ΔVOUT
ΔTa
ΔVOUT
ΔTa • VOUT
*2
*3
[
mV/°C
]
*1 = VOUT(S)
[
V
]
×
[
ppm/°C
]
÷1000
*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.
9
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
