S-8540 Datasheet, PDF (23/36 Pages) Seiko Instruments Inc – STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.3.2_00
S-8540/8541 Series
(9) t_SS − V_IN
16
15 ^{Ta=−40°C}
14
13
12
11
10
25°C
9
85°C
8
2.5
4.0
5.5
7.0
8.5 10.0
V_IN (V)
(10) V_OUT − V_IN 1.8 V PWM/PFM 600 kHz
1.85
1.83
I_OUT=0.1 mA
1.81
1.79
1.77
100 mA
400 mA
1.75
2.5
4
5.5
7
8.5
10
V_IN (V)
(12) V_OUT − V_IN 3.3 V PWM 600 kHz
3.40
3.35
3.30
3.25
3.20
2.5
I_OUT=0.1 mA
100 mA
400 mA
4.0 5.5 7.0 8.5 10.0
V_IN (V)
(11) V_OUT − V_IN 3.3 V PWM/PFM 600 kHz
3.40
3.35
3.30
3.25
I_OUT=0.1 mA _{100 mA}
400 mA
3.20
2.5 4.0 5.5 7.0 8.5 10.0
V_IN (V)
(13) V_OUT − V_IN 3.3 V PWM/PFM 300 kHz
3.40
3.35
IOUT=0.1 mA _{100 mA}
3.30
400 mA
3.25
3.20
2.5 4.0 5.5 7.0 8.5 10.0
V_IN (V)
Seiko Instruments Inc.
23