S1212B Datasheet, PDF (9/58 Pages) Seiko Instruments Inc – HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR

HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.3.0_00
S-1212B/D Series
 Electrical Characteristics
Table 13
Item
Symbol
Condition
(Ta = +25°C unless otherwise specified)
Min.
Typ.
Max.
Unit
Test
Circuit
Output voltage^*1
Output current^*2
V_OUT(E)
I_OUT
V_IN = V_OUT(S) + 2.0 V, I_OUT = 10 mA
V_IN ≥ V_OUT(S) + 2.0 V
V_OUT(S)
× 0.980
V_OUT(S)
V_OUT(S)
× 1.020
V
1
250^*4
−
− mA 3
Dropout voltage^*3
V_drop
I_OUT = 125 mA
I_OUT = 250 mA
−
0.35
−
V
1
−
0.80
−
V
1
Line regulation
ΔV_OUT1 V_OUT(S) + 0.5 V ≤ V_IN ≤ 36 V, I_OUT = 10 mA,
ΔV_IN • V_OUT Tj = +25°C
−
0.01 0.03 %/V 1
Load regulation
ΔV_OUT2
V_IN = V_OUT(S) + 2.0 V,
2.5 V ≤ V_OUT(S) < 5.1 V, 0.1 mA ≤ I_OUT ≤ 40 mA,
T_j = +25°C
V_IN = V_OUT(S) + 2.0 V,
5.1 V ≤ V_OUT(S) < 12.1 V, 0.1 mA ≤ I_OUT ≤ 40 mA,
T_j = +25°C
−
16
30 mV
1
−
16
35 mV
1
Current consumption
during operation
I_SS1
V_IN = V_OUT(S) + 2.0 V,
12.1 V ≤ V_OUT(S) ≤ 16.0 V, 0.1 mA ≤ I_OUT ≤ 40 mA,
T_j = +25°C
V_IN = 18.0 V,
V_{ON / OFF} = V_IN, I_OUT = 0.01 mA
−
16
40 mV
1
−
6.5
8.5 μA
2
Current consumption
during power-off
I_SS2
V_IN = 18.0 V,
V_{ON / OFF} = 0 V, no load
−
0.1
3.5 μA
2
Input voltage
V_IN
−
3.0
−
36 V
−
ON / OFF pin
input voltage "H"
V_SH
V_IN = 18.0 V, R_L = 1.0 kΩ,
B type
(ON / OFF logic active "H")
1.5
−
determined by V_OUT output level D type
(ON / OFF logic active "H")
2.0
−
−
V
4
−
V
4
ON / OFF pin
input voltage "L"
V_SL
V_IN = 18.0 V, R_L = 1.0 kΩ,
B type
(ON / OFF logic active "H")
−
determined by V_OUT output level D type
(ON / OFF logic active "H")
−
−
0.25 V
4
−
0.8 V
4
ON / OFF pin
input current "H"
I_SH
V_IN = 18.0 V, V_{ON / OFF} = V_IN
−0.1
−
0.1 μA
4
ON / OFF pin
input current "L"
I_SL
V_IN = 18.0 V, V_{ON / OFF} = 0 V
−0.1
−
0.1 μA
4
Ripple rejection
|RR|
V_IN = V_OUT(S) + 2.0 V,
f = 100 Hz,
ΔV_rip = 0.5 Vrms,
I_OUT = 10 mA
2.5 V ≤ V_OUT(S) < 3.6 V
3.6 V ≤ V_OUT(S) < 6.1 V
6.1 V ≤ V_OUT(S) < 10.1 V
10.1 V ≤ V_OUT(S) ≤ 16.0 V
−
45
− dB
5
−
40
− dB
5
−
35
− dB
5
−
30
− dB
5
Short-circuit current I_short
Thermal shutdown
detection temperature
T_SD
Thermal shutdown
release temperature
T_SR
Discharge shunt
resistance during
R_LOW
power-off
V_IN = V_OUT(S) + 2.0 V,
V_{ON / OFF} = V_IN, V_OUT = 0 V
Junction temperature
Junction temperature
V_IN = 18.0 V, V_{ON / OFF} = 0 V, V_OUT = 2.0 V
−
120
− mA 3
−
165
− °C
−
−
140
− °C
−
−
70
−
kΩ
6
*1. V_OUT(S): Set output voltage
V_OUT(E): Actual output voltage
The output voltage when V_IN = V_OUT(S) + 2.0 V, I_OUT = 10 mA
*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_IN1 is the input voltage at which the output voltage becomes 98% of V_OUT3 after gradually decreasing the input voltage.
V_OUT3 is the output voltage when V_IN = V_OUT(S) + 2.0 V, and I_OUT = 125 mA or 250 mA.
*4. Due to limitation of the power dissipation, this value may not be satisfied. Attention should be paid to the power
dissipation when the output current is large.
This specification is guaranteed by design.
9