S-1112_1 Datasheet, PDF (9/30 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.5.1_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
V_OUT(E) V_IN = V_OUT(S) + 1.0 V, I_OUT = 30 mA
V_OUT(S) V_OUT(S) V_OUT(S)
× 0.99
× 1.01
V
1
Output current^*2
Dropout voltage^*3
I_OUT
V_IN ≥ V_OUT(S) + 1.0 V
150^*5

 mA 3
V_drop I_OUT = 100 mA 1.5 V ≤ V_OUT(S) ≤ 1.6 V
 0.32 0.55 V
1
1.7 V ≤ V_OUT(S) ≤ 1.8 V
 0.28 0.47 V
1
1.9 V ≤ V_OUT(S) ≤ 2.3 V
 0.25 0.35 V
1
2.4 V ≤ V_OUT(S) ≤ 2.7 V
 0.20 0.29 V
1
Line regulation
2.8 V ≤ V_OUT(S) ≤ 5.5 V
∆VOUT1 _{VOUT(S) + 0.5 V ≤ VIN ≤ 6.5 V,}
∆VIN•VOUT I_OUT = 30 mA
 0.19 0.26 V
1
 0.05 0.2 % / V 1
Load regulation
∆V_OUT2
V_IN = V_OUT(S) + 1.0 V,
1.0 mA ≤ I_OUT ≤ 80 mA

12
40 mV 1
Output voltage
∆VOUT _{VIN = VOUT(S) + 1.0 V, IOUT = 10 mA,}
temperature coefficient^*4 ∆Ta• VOUT −40°C ≤ Ta ≤ 85°C

±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 shutdown
I_SS2
V_IN = V_OUT(S) + 1.0 V, ON/OFF pin = OFF,
no load

0.1
1.0 µA 2
Input voltage
Shutdown 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
Shutdown pin
input voltage “L”
V_SL
V_IN = V_OUT(S) + 1.0 V, R_L = 1.0 kΩ


0.3
V
4
Shutdown pin
input current “H”
I_SH
V_IN = 6.5 V, V_ON/OFF = 6.5 V
−0.1 
0.1 µA 4
Shutdown 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,
∆V_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): Specified output voltage
V_OUT(E): Actual output voltage at the fixed load
The 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. The change in temperature [mV/°C] is calculated using the following equation.
[ ] [ ] [ ] ^∆VOUT mV / °C ^*1 = VOUT(S) V ^*2 × ^∆VOUT ppm / °C ^*3 ÷ 1000
∆Ta
∆Ta • VOUT
*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.
Seiko Instruments Inc.
9