S1112 Datasheet, PDF (9/30 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION AND LOW DROPOUT

HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.6.1_00
S-1112/1122 Series
 Electrical Characteristics
Table 7
(Ta = 25°C unless otherwise specified)
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Test
Circuit
Output voltage^*1
Output current^*2
Dropout voltage^*3
Line regulation
Load regulation
Output voltage
temperature coefficient^*4
V_OUT(E) V_IN = V_OUT(S) + 1.0 V, I_OUT = 30 mA
I_OUT
V_IN ≥ V_OUT(S) + 1.0 V
1.5 V ≤ V_OUT(S) ≤ 1.6 V
1.7 V ≤ V_OUT(S) ≤ 1.8 V
V_drop
I_OUT = 100 mA
1.9 V ≤ V_OUT(S) ≤ 2.3 V
2.4 V ≤ V_OUT(S) ≤ 2.7 V
Δ VOUT1
2.8 V ≤ V_OUT(S) ≤ 5.5 V
V_OUT(S) + 0.5 V ≤ V_IN ≤ 6.5 V,
ΔVIN•VOUT I_OUT = 30 mA
ΔV_OUT2
V_IN = V_OUT(S) + 1.0 V,
1.0 mA ≤ I_OUT ≤ 80 mA
ΔVOUT _{VIN = VOUT(S) + 1.0 V, IOUT = 10 mA,}
ΔTa• VOUT −40°C ≤ Ta ≤ 85°C
V_OUT(S) V_OUT(S) V_OUT(S)
× 0.99
× 1.01
V
1
150^*5
⎯
⎯ mA 3
⎯
0.32 0.55 V
1
⎯
0.28 0.47 V
1
⎯
0.25 0.35 V
1
⎯
0.20 0.29 V
1
⎯
0.19 0.26 V
1
⎯
0.05
0.2 %/V 1
⎯
12
40 mV 1
⎯
±100
⎯
ppm/°
C
1
Current consumption
during operation
I_SS1
V_IN = V_OUT(S) + 1.0 V, ON/OFF pin = ON,
no load
⎯
50
90
μA
2
Current consumption
during power-off
I_SS2
V_IN = V_OUT(S) + 1.0 V, ON/OFF pin = OFF,
no load
⎯
0.1
1.0 μA
2
Input voltage
ON/OFF pin
input voltage “H”
V_IN
⎯
V_SH
V_IN = V_OUT(S) + 1.0 V, R_L = 1.0 kΩ
2.0
⎯
6.5
V
⎯
1.5
⎯
⎯
V
4
ON/OFF pin
input voltage “L”
V_SL
V_IN = V_OUT(S) + 1.0 V, R_L = 1.0 kΩ
⎯
⎯
0.3
V
4
ON/OFF pin
input current “H”
I_SH
V_IN = 6.5 V, V_ON/OFF = 6.5 V
−0.1
⎯
0.1
μA
4
ON/OFF pin
input current “L”
I_SL
V_IN = 6.5 V, V_ON/OFF = 0 V
−0.1
⎯
0.1
μA
4
Ripple rejection
RR
V_IN = V_OUT(S) + 1.0 V, f = 1.0 kHz,
ΔV_rip = 0.5 Vrms, I_OUT = 30 mA
⎯
80
⎯
dB
5
Short-circuit current
I_short
V_IN = V_OUT(S) + 1.0 V, ON/OFF pin = ON,
V_OUT = 0 V
⎯
200
⎯ mA 3
*1. V_OUT(S): Set output voltage
V_OUT(E): Actual output voltage
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. A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
ΔV_OUT
ΔTa
[mV/°C]^*1 = VOUT(S) [V]^*2 ×
ΔV_OUT
ΔTa • V_OUT
[ppm/°C]^*3 ÷ 1000
*1. Change in temperature of output voltage
*2. Set 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.
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