S-8540A15FN-IAAT2Z Datasheet, PDF (22/36 Pages) Seiko Instruments Inc – SWITCHABLE SWITCHING REGULATOR CONTROLLER

STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8540/8541 Series
Rev.4.0_01
 Typical Characteristics
1. Examples of major parameters characteristics
(1) ISS1 − VIN S-8540/8541(300 kHz)
250
85°C
200
25°C
(2) ISS1 − VIN S-8540/8541(600 kHz)
250
85°C
200
150
150
100
100
50
Ta=−40°C
50
25°C
Ta=−40°C
0
2.5
4.0
5.5
7.0
8.5
V_IN (V)
(3) fOSC − VIN
360
340
S-8540/8541(300 kHz)
85°C
320
300
280
25°C
Ta=−40°C
260
240
2.5 4.0 5.5 7.0 8.5
V_IN (V)
(5) IEXTH − VIN S-8540/8541
10.0
10.0
100
80
60
Ta=−40°C
25°C
40
20
85°C
0
2.5 4.0 5.5 7.0 8.5 10.0
V_IN (V)
0
2.5 4.0 5.5 7.0 8.5
V_IN (V)
(4) fOSC − VIN S-8540/8541(600 kHz)
720
680
85°C
640
600
560
25°C
Ta=−40°C
520
480
2.5 4.0 5.5 7.0 8.5
V_IN (V)
(6) IEXTL − VIN S-8540/8541
100
80
60
Ta=−40°C
40
20
25°C
85°C
0
2.5
4.0
5.5
7.0
8.5
V_IN (V)
10.0
10.0
10.0
(7) VSH − VIN S-8540/8541
(8) VSL − VIN S-8540/8541
2.3
2.2
2.1 Ta=−40°C
2.0
25°C
1.9
1.8
85°C
1.7
2.5
4.0
5.5
7.0
8.5 10.0
V_{IN (V)}
22
0.9
0.8
0.7 Ta=−40°C
0.6
25°C
0.5
0.4
85°C
0.3
2.5
4.0
5.5
7.0
8.5 10.0
V_IN (V)