S-8337ACDB-P8T1G datasheet(33/51 Pages) SII

Part #	S-8337ACDB-P8T1G

Description	SWITCHING REGULATOR CONTROLLER

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Manufacturer	SII [Seiko Instruments Inc]

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STEP-UP, 1.2 MHz HIGH-FREQUENCY, PWM CONTROL SWITCHING REGULATOR CONTROLLER

Rev.4.0_01

S-8337/8338 Series

33

4. 4 Input voltage fluctuations (VOUT

= 9.2 V, IOUT = 100 mA, RZ = 200 kΩ, CZ = 0.01 μF)

(1) fOSC

= 1133 kHz, VIN = 2.7 V→3.7 V

(2) fOSC

= 1133 kHz, VIN = 3.7 V→2.7 V

–20

–10

0

10

20

time [ms]

9.15

VOUT

[V]

9.20

VIN

[V]

4.0

3.5

3.0

2.5

9.25

9.30

–20

–10

0

10

20

time [ms]

9.15

VOUT

[V]

9.20

VIN

[V]

4.0

3.5

3.0

2.5

9.25

9.30

(3) fOSC

= 700 kHz, VIN = 2.7 V→3.7 V

(4) fOSC

= 700 kHz, VIN = 3.7 V→2.7 V

–20

–10

0

10

20

time [ms]

9.15

VOUT

[V]

9.20

VIN

[V]

4.0

3.5

3.0

2.5

9.25

9.30

–20

–10

0

10

20

time [ms]

9.15

VOUT

[V]

9.20

VIN

[V]

4.0

3.5

3.0

2.5

9.25

9.30

(5) fOSC

= 286 kHz, VIN = 2.7 V→3.7 V

(6) fOSC

= 286 kHz, VIN = 3.7 V→2.7 V

–20

–10

0

10

20

time [ms]

9.15

VOUT

[V]

9.20

VIN

[V]

4.0

3.5

3.0

2.5

9.25

9.30

–20

–10

0

10

20

time [ms]

9.15

VOUT

[V]

9.20

VIN

[V]

4.0

3.5

3.0

2.5

9.25

9.30

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S-8337ACDB-P8T1G Datasheet(PDF) 33 Page - Seiko Instruments Inc

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