s-8337aaca-t8t1g Seiko Instruments Inc., s-8337aaca-t8t1g Datasheet - Page 37

• Manufacturer Part Number: s-8337aaca-t8t1g
• Description: Step-up, 1.2 Mhz High-frequency, Pwm Control Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

3. Reference data (2)
Rev.3.1
3. 1 V
3. 2 V
(1) f
(3) f
(1) f
(3) f
Vr
[mV]
Vr
[mV]
Vr
[mV]
Vr
[mV]
The data of output current (I
OSC
OSC
OSC
OSC
100
100
100
100
OUT
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
90
80
70
60
50
40
30
20
10
0
0
0
0
= 1133 kHz, MaxDuty = 77 % (R
= 1133 kHz, MaxDuty = 77 % (R
= 286 kHz, MaxDuty = 77 % (R
= 286 kHz, MaxDuty = 77 % (R
0.01
0.01
0.01
0.01
_00
= 13.1 V (R
= 9.2 V (R
STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER
0.1
0.1
0.1
0.1
FB1
FB1
= 8.2 k Ω , R
= 7.5 k Ω , R
1
1
1
1
I
I
I
I
OUT
OUT
OUT
OUT
[mA]
[mA]
[mA]
[mA]
OSC
OSC
OSC
10
10
OSC
10
10
FB2
OUT
FB2
= 510 kΩ, R
= 510 kΩ, R
= 120 kΩ, R
= 120 kΩ, R
= 1.0 k Ω )
) vs. ripple voltage (Vr) characteristics is shown below.
= 620 Ω )
V
V
V
V
V
V
100
100
100
100
IN
IN
IN
IN
IN
IN
Seiko Instruments Inc.
= 3.3 V
= 5.0 V
= 3.3 V
= 5.0 V
= 5.0 V
= 5.0 V
Duty
Duty
Duty
Duty
= 750 kΩ)
= 750 kΩ)
1000
1000
1000
1000
= 180 kΩ)
= 180 kΩ)
(2) f
(2) f
Vr
[mV]
Vr
[mV]
OSC
OSC
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
= 700 kHz, MaxDuty = 77 % (R
= 700 kHz, MaxDuty = 77 % (R
0.01
0.01
0.1
0.1
1
1
I
I
OUT
OUT
[mA]
[mA]
S-8337/8338 Series
OSC
OSC
10
10
= 200 kΩ, R
= 200 kΩ, R
V
V
V
100
100
IN
IN
IN
= 3.3 V
= 5.0 V
= 5.0 V
Duty
Duty
= 300 kΩ)
= 300 kΩ)
1000
1000
37