s-8337aaca-t8t1g Seiko Instruments Inc., s-8337aaca-t8t1g Datasheet - Page 35
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s-8337aaca-t8t1g
Manufacturer Part Number
s-8337aaca-t8t1g
Description
Step-up, 1.2 Mhz High-frequency, Pwm Control Switching Regulator Controller
Manufacturer
Seiko Instruments Inc.
Datasheet
1.S-8337AACA-T8T1G.pdf
(49 pages)
- Current page: 35 of 49
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Rev.3.1
2. 2 V
(2) f
(3) f
(1) f
(a) I
(a) I
(a) I
η
[%]
η
[%]
η
[%]
OSC
OSC
OUT
OUT
OUT
OSC
100
100
100
OUT
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
= 700 kHz, MaxDuty = 77 % (R
= 286 kHz, MaxDuty = 77 % (R
vs. η
0.01
vs. η
0.01
vs. η
0.01
= 1133 kHz, MaxDuty = 77 % (R
_00
= 9.2 V (R
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
0.1
0.1
0.1
FB1
= 8.2 k Ω , R
1
1
1
I
I
I
OUT
OUT
OUT
[mA]
[mA]
[mA]
10
10
10
FB2
= 1.0 k Ω )
OSC
OSC
V
V
V
V
V
V
OSC
100
100
100
IN
IN
IN
IN
IN
IN
Seiko Instruments Inc.
= 200 kΩ, R
= 510 kΩ, R
= 3.3 V
= 5.0 V
= 3.3 V
= 5.0 V
= 3.3 V
= 5.0 V
= 120 kΩ, R
1000
1000
1000
Duty
Duty
Duty
= 300 kΩ)
= 750 kΩ)
= 180 kΩ)
(b) I
(b) I
(b) I
V
[V]
V
[V]
V
[V]
OUT
OUT
OUT
OUT
OUT
OUT
9.30
9.25
9.20
9.15
9.10
9.05
9.00
9.30
9.25
9.20
9.15
9.10
9.05
9.00
9.30
9.25
9.20
9.15
9.10
9.05
9.00
vs. V
vs. V
vs. V
0.01
0.01
0.01
OUT
OUT
OUT
0.1
0.1
0.1
V
V
V
V
V
V
IN
IN
IN
IN
IN
IN
= 3.3 V
= 5.0 V
= 3.3 V
= 5.0 V
= 3.3 V
= 5.0 V
1
1
1
I
I
I
OUT
OUT
OUT
S-8337/8338 Series
[mA]
[mA]
[mA]
10
10
10
100
100
100
1000
1000
1000
35
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