S-19244A12H-E8T1U Datasheet, PDF (17/68 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION

FOR AUTOMOTIVE 105°C OPERATION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR WITH SOFT-START FUNCTION
Rev.3.0_00
S-19244xxxH Series
2. Types in which output voltage is externally set (S-19244x00, HSOP-8A, HSOP-6, HSNT-8(2030))
Item
Symbol
Adjustment pin output
voltage ^*1
V_VADJ
Output voltage range
Adjustment pin
internal resistance
Output current^*2
V_ROUT
R_VADJ
I_OUT
Dropout voltage^*3
V_drop
Line regulation
ΔV_OUT1
ΔV_IN • V_OUT
Load regulation
Current consumption
during operation
ΔV_OUT2
I_SS1
Current consumption
during power-off
I_SS2
Input voltage
V_IN
ON / OFF pin
input voltage "H"
V_SH
ON / OFF pin
input voltage "L"
V_SL
ON / OFF pin
input current "H"
I_SH
ON / OFF pin
input current "L"
I_SL
Ripple rejection
|RR|
Short-circuit current I_short
Thermal shutdown
detection temperature
T_SD
Thermal shutdown
release temperature
T_SR
Discharge shunt
resistance during
power-off
R_LOW
ON / OFF pin
pull-down resistance
R_PD
Soft-start time^*6
t_SS
Table 24
Condition
(T_j = −40°C to +150°C unless otherwise specified)
Min.
Typ.
Max.
Unit
Test
Circuit
V_OUT = V_VADJ, V_IN = 2.5 V, I_OUT = 100 mA,
T_j = −40°C to +105°C
−
0.977 1.0 1.023 V
8
1.0
−
9.0 V 15
−
−
600
−
kΩ −
V_OUT = V_VADJ, V_IN = 2.5 V
V_OUT = V_VADJ, I_OUT = 300 mA, Ta = +25°C
V_OUT = V_VADJ, I_OUT = 1000 mA, Ta = +25°C
1000^*5 −
−
*4
−
*4
− mA 10
−
V
8
−
V
8
V_OUT = V_VADJ, 2.5 V ≤ V_IN ≤ 10 V,
I_OUT = 100 mA, Ta = +25°C
− 0.05 0.2 %/V 8
V_OUT = V_VADJ, V_IN = 2.5 V,
1 mA ≤ I_OUT ≤ 300 mA, Ta = +25°C
V_OUT = V_VADJ, V_IN = 2.5 V,
ON / OFF pin = ON, no load
−
15
30 mV 8
−
120 150 μA 9
V_OUT = V_VADJ, V_IN = 2.5 V,
ON / OFF pin = OFF, no load,
−
0.1 4.5 μA 9
T_j = −40°C to +105°C
−
2.5
−
10
V
−
V_OUT = V_VADJ, V_IN = 2.5 V, R_L = 1 kΩ,
determined by V_OUT output level
2.1
−
V_OUT = V_VADJ, V_IN = 2.5 V, R_L = 1 kΩ,
determined by V_OUT output level
−
−
V_IN = 10 V,
B / D / F / H type −0.1 −
ON / OFF = 10 V
A / C / E / G type 0.8 2.5
−
V 11
0.6 V 11
0.1 μA 11
7.8 μA 11
V_IN = 10 V, ON / OFF = 0 V
−0.1 −
0.1 μA 11
V_OUT = V_VADJ, V_IN = 3.0 V, f = 1 kHz,
ΔV_rip = 0.5 Vrms, I_OUT = 100 mA
−
60
− dB 12
V_OUT = V_VADJ, V_IN = 2.5 V, ON / OFF pin = ON,
V_OUT = 0 V, Ta = +25°C
−
330
− mA 10
Junction temperature
−
170
−
°C −
Junction temperature
−
135
−
°C −
V_IN = 10 V, V_OUT = 0.1 V A / B / E / F type
−
100
−
Ω 13
−
A / C / E / G type 1.3 4.0 12 MΩ 11
V_OUT = V_VADJ, V_IN = 2.5 V,
ON / OFF pin = ON
A / B / C / D type
−
1.0
− ms 14
*1. Output voltage when fixing I_OUT (= 100 mA) and inputting 2.5 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_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) + 1.0 V, and I_OUT = 300 mA or 1000 mA.
*4. The dropout voltage is limited by the difference between the input voltage (min. value) and the set output voltage.
In case of set output voltage (V_OUT(S)) = 1.0 V: 2.5 V − V_OUT(S) = V_drop
*5. 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.
*6. Soft-start time shows the time period from immediately after power-on or when the ON / OFF pin is set to ON until the
output voltage rises to 99%. Refer to "8. Soft-start function" in " Operation" for details.
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