S8351 datasheet(32/51 Pages) SII

32 / 51 page

STEP-UP, BUILT-IN / EXTERNAL FET PFM CONTROL SWITCHING REGULATOR / SWITCHING REGULATOR CONTROLLER

S-8351/8352 Series

Rev.3.0_01

17. Transient Response Characteristics

The conditions for external parts are the same as those specified in the electrical characteristics.

(1) Power-on (Ta = 25

°C, RL = 250 Ω)

S-8351A30MC

VIN = 0

→ 1.8 V

S-8351A50MC

VIN = 0

→ 3 V

t [0.2 ms / div]

Input voltage

[0.5 V / div]

Output voltage

[0.5 V / div]

0 V

1.8 V

3 V

t [0.2 ms / div]

Input voltage

[1 V / div]

Output voltage

[1 V / div]

0 V

3 V

5 V

S-8352A30MC

VIN = 0

→ 1.8 V

S-8352A50MC

VIN = 0

→ 3 V

t [0.2 ms / div]

Input voltage

[0.5 V / div]

Output voltage

[0.5 V / div]

0 V

1.8 V

3 V

t [0.2 ms / div]

Input voltage

[1 V / div]

Output voltage

[1 V / div]

0 V

3 V

5 V

(2) Power Supply Voltage Fluctuation (Ta = 25

°C, RL = 250 Ω)

S-8351A30MC

VIN = 1.2

→ 1.8 V

S-8351A30MC

VIN = 1.8

→ 1.2 V

t [0.1 ms / div]

Input voltage

[0.5 V /div]

Output voltage

[0.1 V / div]

1.2 V

1.8 V

3 V

t [0.1 ms / div]

Input voltage

[0.5 V / div]

Output voltage

[0.1 V / div]

1.8 V

1.2 V

3 V

S-8351A50MC

VIN = 2

→ 3 V

S-8351A50MC

VIN = 3

→ 2 V

t [0.1 ms / div]

Input voltage

[0.5 V / div]

Output voltage

[0.1 V / div]

2 V

3 V

5 V

t [0.1 ms / div]

Input voltage

[0.5 V / div]

Output voltage

[0.1 V / div]

3 V

2 V

5 V

S8351 Datasheet(PDF) 32 Page - Seiko Instruments Inc

S8351 Datasheet(HTML) 32 Page - Seiko Instruments Inc

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