S-19500A03A-E8T1U4 Datasheet, PDF (45/52 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION

FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION
Rev.1.2_01
S-19500/19501 Series
 Reference Data
1. Transient response characteristics when input (Ta = +25°C)
1. 1 VOUT = 3.3 V
IOUT = 30 mA, CL = 2.2 μF, VIN = 11.5 V ↔ 13.5 V, tr = tf = 5.0 μs
3.8
14
1. 2 VOUT = 5.0 V
IOUT = 30 mA, CL = 2.2 μF, VIN = 11.5 V ↔ 13.5 V, tr = tf = 5.0 μs
6.0
14
3.7
13
5.8
13
3.6 _VIN
12
5.6 _VIN
12
3.5
11
5.4
11
3.4
10
5.2
10
VOUT
VOUT
3.3
9
5.0
9
3.2
100 0
8
100 200 300 400 500
t [s]
4.8
100 0
8
100 200 300 400 500
t [s]
2. Transient response characteristics of load (Ta = +25°C)
2. 1 VOUT = 3.3 V
VIN = 13.5 V, CL = 2.2 μF, IOUT = 50 mA ↔ 100 mA
3.7
150
2. 2 VOUT = 5.0 V
VIN = 13.5 V, CL = 2.2 μF, IOUT = 50 mA ↔ 100 mA
5.8
150
3.6
100
5.6
100
IOUT
IOUT
3.5
50
5.4
50
3.4
0
5.2
0
VOUT
3.3
50
VOUT
5.0
50
3.2
100
4.8
100
3.1
100 0
150
100 200 300 400 500
t [s]
4.6
100 0
150
100 200 300 400 500
t [s]
3. Load dump characteristics (Ta = +25°C)
3. 1 VOUT = 5.0 V
IOUT = 0.1 mA, VIN = 13.5 V ↔ 45.0 V, CIN = CL = 2.2 μF
6.0
50
5.8
40
5.6
30
5.4 VIN
20
5.2
10
VOUT
5.0
0
4.8
10
0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
t [s]
4. Example of equivalent series resistance vs. Output current characteristics (Ta = +25°C)
CIN = CL = 2.2 μF, CDLY = 47 nF
10
0 _0.1
Stable
200
I_OUT [mA]
VIN
VOUT
WEN
WO / RO _CL*1
C_IN
WI ^S-19500
DLY
Series
WADJ
C_DLY
VSS
R_ESR
*1. CL: Murata Manufacturing Co., Ltd.
GCM31CR71H225K (2.2 μF)
45