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S-8540A18FN-IADT2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8540/8541 Series
Rev.4.0_00
22 Seiko Instruments Inc.
Typical Characteristics
1. Examples of major parameters characteristics
(1) I
SS1
− V
IN
S-8540/8541(300 kHz) (2) I
SS1
− V
IN
S-8540/8541(600 kHz)
0
50
100
150
200
250
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
ISS1 (μA)
25°C
85°C
Ta=−40°C
0
50
100
150
200
250
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
ISS1
(
μ
A
)
25°C
85°C
Ta=−40°C
(3) f
OSC
− V
IN
S-8540/8541(300 kHz)
240
260
280
300
320
340
360
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
f
OSC
(kHz)
25°C
85°C
Ta=−40°C
(4) f
OSC
− V
IN
S-8540/8541(600 kHz)
480
520
560
600
640
680
720
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
f
OSC
(kHz)
25°C
85°C
Ta=−40°C
(5) I
EXTH
− V
IN
S-8540/8541
0
20
40
60
80
100
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
I
EXTH
(mA)
25°C
85°C
Ta=−40°C
(6) I
EXTL
− V
IN
S-8540/8541
0
20
40
60
80
100
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
I
EXTL
(mA)
25°C
85°C
Ta
=
−
40°C
(7) V
SH
− V
IN
S-8540/8541 (8) V
SL
− V
IN
S-8540/8541
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
V
SH
(V)
25°C
85°C
Ta=−40°C
0.3
0.4
0.5
0.6
0.7
0.8
0.9
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
V
SL
(V)
25°C
85°C
Ta=−40°C
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.4.0_00
S-8540/8541 Series
Seiko Instruments Inc. 23
(9) t
SS
− V
IN
8
9
10
11
12
13
14
15
16
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
t
SS
(ms)
25°C
85°C
Ta=−40°C
(10) V
OUT
− V
IN
1.8 V PWM/PFM 600 kHz
(11) V
OUT
− V
IN
3.3 V PWM/PFM 600 kHz
1.75
1.77
1.79
1.81
1.83
1.85
2.5 4 5.5 7 8.5 10
V
IN
(V)
V
OUT
(V)
100 mA
400 mA
I
OUT
=0.1 mA
3.20
3.25
3.30
3.35
3.40
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
V
OUT
(V)
I
OUT
=0.1 mA
100 mA
400 mA
(12) V
OUT
− V
IN
3.3 V PWM 600 kHz
(13) V
OUT
− V
IN
3.3 V PWM/PFM 300 kHz
3.20
3.25
3.30
3.35
3.40
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
V OUT
(V)
I
OU T
=0.1 mA
100 mA
400 mA
3.20
3.25
3.30
3.35
3.40
2.5 4.0 5.5 7.0 8.5 10.0
V
IN
(V)
V OUT
(V)
I
OUT
=
0.1 mA
100 mA
400 mA
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8540/8541 Series
Rev.4.0_00
24 Seiko Instruments Inc.
2. Transient Response Characteristics
2. 1 Power-on (I
OUT
: no Load)
(1) S-8540A33FN (V
IN
: 0 → 4.95 V) (2) S-8540A33FN (V
IN
: 0 → 10 V)
10 V
0 V
3 V
0 V
V
IN
(
2.5 V/div
)
V
OUT
(
1 V/div
)
t
(
2 ms/div
)
10 V
0 V
3 V
0 V
V
IN
(
2.5 V/div
)
V
OUT
(
1 V/div
)
t
(
1 ms/div
)
(3) S-8540C33FN (V
IN
: 0 → 4.95 V) (4) S-8540C33FN (V
IN
: 0 → 10 V)
10 V
0 V
3 V
0 V
V
IN
(
2.5 V/div
)
V
OUT
(
1 V/div
)
t (2 ms/div)
10 V
0 V
3 V
0 V
V
IN
(2.5 V/div)
V
OU T
(
1 V/div
)
t
(
1 ms/div
)
(5) S-8540A18FN (V
IN
: 0 → 2.7 V) (6) S-8540A18FN (V
IN
: 0 → 10 V)
10 V
0 V
2 V
0 V
V
IN
(
2.5 V/div
)
V
OUT
(0.5 V/div)
t (4 ms/div)
10 V
0 V
2 V
0 V
V
IN
(
2.5 V/div
)
V
OUT
(
0.5 V/div
)
t
(
1 ms/div
)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36

S-8540A18FN-IADT2G

Mfr. #:
Buy S-8540A18FN-IADT2G
Manufacturer:
ABLIC
Description:
Switching Controllers 1.8V Step-Down PWM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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