S-8520 Seiko Instruments, S-8520 Datasheet - Page 28

• Manufacturer Part Number: S-8520
• Description: (S-8520 / S-8521) PWM Control and PFM Control Step DOwn Switching Regulator Controllers
• Manufacturer: Seiko Instruments

PWM Control & PWM/PFM Control Step-Down Switching Regulator-Controllers
S-8520/8521 Series
28
(6)
(8)
(10)
Efficiency
(%)
Efficiency
(%)
Efficiency
(%)
S-8521B30MC
I
S-8521F33MC
I
S-8520B50MC
I
OUT
OUT
OUT
100
100
100
− Efficiency (CD105/47 µH,TM6201)
− Efficiency (D62F/22 µH,TM6201)
− Efficiency (CD54/47 µH,TM6201)
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
0.01
0.01
0.01
V
V
V
IN
IN
IN
0.1
0.1
0.1
=9 V
=6 V
=4 V
1
1
1
I
I
OUT
I
OUT
OUT
(mA)
(mA)
(mA)
10
10
10
Seiko Instruments Inc.
100
100
100
V
V
V
V
IN
IN
IN
IN
=3.6 V
=9.0 V
=6.0 V
=9.0 V
(11)
1000
1000
1000
(9)
(7)
Efficiency
(%)
Efficiency
(%)
Efficiency
(%)
S-8521B30MC
I
S-8521F33MC
I
S-8520B50MC
I
OUT
OUT
OUT
100
100
100
− Efficiency (CD105/47 µH,IFR7606)
− Efficiency (CDH113/22 µH,IRF7606)
− Efficiency (CD105/47 µH,IRF7606)
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
0.01
0.01
0.01
V
V
V
V
V
V
V
0.1
0.1
0.1
IN
IN
IN
IN
IN
IN
IN
=14 V
=9 V
=6 V
=14 V
=9 V
=6 V
=4 V
1
1
1
I
I
OUT
I
OUT
OUT
(mA)
(mA)
(mA)
10
10
10
100
100
100
V
V
IN
IN
Rev.7.4
=3.6 V
=9.0 V
1000
1000
1000
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