s-8460 Seiko Instruments Inc., s-8460 Datasheet - Page 26

• Manufacturer Part Number: s-8460
• Description: Step-up Or Down, Single-coil, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

3. Input Voltage (V
26
STEP-UP OR DOWN, SINGLE-COIL, PWM CONTROL SWITCHING REGULATOR CONTROLLER
S-8460
The following shows the actual input voltage (V
conditions (17) to (24) in Table 4 .
(17) S-8460B00AFT (V
(19) S-8460B00AFT (V
(21) S-8460B00AFT (V
(23) S-8460B00AFT (V
100
100
100
100
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
2
2
2
2
CPH6401, MA2Q737, CDRH104R/22 μH
CPH3403, MA2Q737, CDRH104R/22 μH
CPH6401, MA2Q737, CDRH104R/10 μH
CPH6401,MA2Q737,CDRH104R/22 μ H
CPH6401,MA2Q737,CDRH104R/10 μ H
CPH3403,MA2Q737,CDRH104R/22 μ H
Si2302DS, D1FH3, CDRH104R/22 μH
Si2302DS,D1FH3,CDRH104R/22 μ H
IN
100mA
) vs. Efficiency (η) Characteristics
3
3
3
3
OUT
OUT
OUT
OUT
V
V
V
V
I
IN
IN
IN
IN
OUT
= 3.3 V)
= 3.3 V)
= 3.3 V)
= 3.3 V)
(V)
(V)
(V)
(V)
66mA
66mA
=50mA
100mA
100mA
100mA
66mA
200mA
4
4
4
4
I
I
I
OUT
OUT
66mA
OUT
=50mA
=50mA
=50mA
200m
200m
200m
Seiko Instruments Inc.
IN
5
5
5
5
) vs. efficiency (η) characteristics when the S-8460 is used under
(18) S-8460B00AFT (V
(20) S-8460B00AFT (V
(22) S-8460B00AFT (V
(24) S-8460B00AFT (V
100
100
100
100
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
2
2
2
2
CPH6401, MA2Q737, CDRH104R/47 μH
FTS2001, MA2Q737, CDRH104R/22 μH
FDN335N, D1FH3, CDRH104R/22 μH
CPH6401,MA2Q737,CDRH104R/47 μ H
FTS2001,MA2Q737,CDRH104R/22 μ H
CPH3403, D1FH3, CDRH104R/22 μH
CPH3403,D1FH3,CDRH104R/22 μ H
FDN335N,D1FH3,CDRH104R/22 μ H
I
OUT
3
3
3
3
=50mA
I
I
I
OUT
OUT
OUT
OUT
OUT
OUT
OUT
100mA
V
V
V
V
=50mA
=50mA
=50mA
200mA
IN
IN
IN
IN
= 3.3 V)
= 3.3 V)
= 3.3 V)
= 3.3 V)
(V)
(V)
(V)
(V)
66mA
66mA
4
4
4
4
66mA
200mA
66mA
100mA
200mA
200mA
100mA
100mA
Rev.2.1
5
5
5
5
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