S-8550 SII [Seiko Instruments Inc], S-8550 Datasheet - Page 15
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S-8550
Manufacturer Part Number
S-8550
Description
STEP-DOWN, BUILT-IN FET, SYNCHRONOUS RECIFICATION, PWM CONTROL SWITCHING REGULATORS
Manufacturer
SII [Seiko Instruments Inc]
Datasheet
1.S-8550.pdf
(26 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S-8550AA-I8T1G
Manufacturer:
Skyworks
Quantity:
210
Company:
Part Number:
S-8550AA-M5T1G
Manufacturer:
SEIKO
Quantity:
230
Part Number:
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Manufacturer:
SII/精工
Quantity:
20 000
STEP-DOWN, BUILT-IN FET, SYNCHRONOUS RECTIFICATION, PWM CONTROL SWITCHING REGULATORS
Rev.2.1
Characteristics (Typical Data)
1. Example of Major Power Supply Dependence Characteristics (Ta = 25°C)
1. 1 Current consumption 1 (I
1. 3 Oscillation frequency (f
1. 5 Power MOS FET on-resistance (R
1. 7 ON/OFF pin input voltage“H” (V
1.38
1.34
1.30
1.26
1.22
1.18
1.14
1.10
1.06
1.02
500
400
300
200
100
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
_01
0
2.0
2.0
2.0
2.0
2.5
2.5
2.5
2.5
3.0
3.0
3.0
3.0
3.5
3.5
3.5
3.5
V
osc
V
V
V
Pch
Nch
SS1
IN
IN
IN
IN
) vs. Input voltage (V
[V]
[V]
[V]
[V]
4.0
4.0
4.0
SH
4.0
) vs. Input voltage (V
FET
) vs. Input voltage (V
) vs. Input voltage (V
4.5
4.5
4.5
4.5
5.0
5.0
5.0
5.0
Seiko Instruments Inc.
5.5
5.5
5.5
5.5
IN
IN
)
IN
)
)
IN
)
1. 2 Current consumption during shutdown (I
1. 4 Soft-start time (t
1. 6 Power MOS FET leakage current (I
1. 8 ON/OFF pin input voltage“L” (V
−0.1
−0.2
−0.3
−0.4
−0.5
1.0
0.8
0.6
0.4
0.2
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.5
0.4
0.3
0.2
0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0
0
2.0
2.0
2.0
2.0
2.5
2.5
2.5
2.5
3.0
3.0
3.0
3.0
SS
) vs. Input voltage (V
3.5
3.5
3.5
3.5
S-8550/8551 Series
V
V
V
V
Pch
Nch
IN
IN
IN
SL
IN
) vs. Input voltage (V
[V]
[V]
[V]
[V]
LSW
4.0
4.0
4.0
4.0
SSS
) vs. Input voltage (V
) vs. Input voltage (V
4.5
4.5
4.5
4.5
5.0
5.0
5.0
5.0
IN
)
IN
5.5
5.5
5.5
5.5
)
IN
IN
)
15
)