S-8550 SII [Seiko Instruments Inc], S-8550 Datasheet - Page 20
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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
20
STEP-DOWN, BUILT-IN FET, SYNCHRONOUS RECTIFICATION, PWM CONTROL SWITCHING REGULATORS
S-8550/8551 Series
3. Output current (I
2. 3 V
2. 4 V
3. 1 V
(1)
(1)
(1) V
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
50
40
30
20
10
Output current (I
0
Output current (I
0
0
OUT
OUT
OUT
IN
0
0
0
= 3.6 V
= 3.3 V (R
= 4.0 V (R
= 1.1 V (R
V
V
V
V
IN
IN
IN
IN
= 3.7 V
= 5.5 V
= 4.4 V
= 5.5 V
1
1
1
FB1
FB1
FB1
OUT
= 36 kΩ, R
= 51 kΩ, R
= 36 kΩ, R
) vs. Ripple voltage (V
OUT
I
OUT
I
I
OUT
OUT
OUT
10
10
10
) vs. Efficiency (η)
) vs. Efficiency (η)
[mA]
[mA]
[mA]
FB2
FB2
FB2
100
100
100
= 8 kΩ)
= 9 kΩ)
= 43 kΩ)
Seiko Instruments Inc.
1000
1000
1000
r
) Characteristics
(2) Output current (I
(2) Output current (I
(2) V
3.5
3.4
3.3
3.2
3.1
4.2
4.1
4.0
3.9
3.8
50
40
30
20
10
IN
0
= 5.5 V
0
0
0
V
V
V
V
IN
IN
IN
IN
= 5.5 V
= 3.7 V
= 5.5 V
= 4.4 V
1
1
1
OUT
OUT
) vs. Output voltage (V
) vs. Output voltage (V
I
I
I
OUT
OUT
OUT
10
10
10
[mA]
[mA]
[mA]
100
100
100
Rev.2.1
1000
1000
1000
OUT
OUT
_01
)
)