S-8337ACDB-P8T1G datasheet(25/51 Pages) SII

Part #	S-8337ACDB-P8T1G

Description	SWITCHING REGULATOR CONTROLLER

PDF	51 Pages

Scroll/Zoom	100%

Manufacturer	SII [Seiko Instruments Inc]

Direct Link	http://www.sii.co.jp

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25 / 51 page

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

Rev.4.0_01

S-8337/8338 Series

25

100

90

80

70

60

50

40

30

20

10

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

MaxDuty

[%]

MaxDuty vs. Ta (VIN

= 3.3 V)

MaxDuty

= 88.5% (ROSC = 200 kΩ, RDuty= 100 kΩ)

MaxDuty

= 77% (ROSC= 200 kΩ, RDuty= 300 kΩ)

MaxDuty

= 47% (ROSC= 200 kΩ, RDuty= 820 kΩ)

tSS vs. Ta (VIN

= 3.3 V)

25.0

20.0

15.0

10.0

5.0

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

tSS

[ms]

tSS

= 10 ms

tSS

= 20 ms

70.0

60.0

50.0

40.0

30.0

20.0

10.0

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

tPRO

[ms]

tPRO vs. Ta (VIN

= 3.3 V)

tPRO

= 50 ms (CSP = 0.1 μF)

VUVLO vs. Ta

2.5

2.0

1.5

1.0

0.5

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

VUVLO

[V]

VUVLO

= 2.3 V

VUVLO

= 1.5 V

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

VUVLOHYS

[V]

VUVLOHYS vs. Ta

VUVLOHYS

= 0.3 V

VUVLOHYS

= 0.1 V

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

ICCH

[

μA]

ICCH vs. Ta (VIN

= 3.3 V)

100

90

80

70

60

50

40

30

20

10

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

ICCL

[

μA]

ICCL vs. Ta (VIN

= 3.3 V)

1.2

1.0

0.8

0.6

0.4

0.2

0

−40 −20

0

20

40

60

80

100

Ta [

°C]

VRTLT

[V]

VRTLT vs. Ta (VIN

= 3.3 V)

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S-8337ACDB-P8T1G Datasheet(PDF) 25 Page - Seiko Instruments Inc

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