S8540 datasheet(32/36 Pages) SII

Part #	S8540

Description	STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

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Manufacturer	SII [Seiko Instruments Inc]

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

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32 / 36 page

STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER

S-8540/8541 Series

Rev.4.0_01

32

2. Ripple Voltage (Vrip)

− Output Current (IOUT) Characteristics

2. 1 S-8540A33FN

2. 2 S-8541A33FN

0

20

40

60

80

100

1

10

100

1000

(3.3 V, 600 kHz, PWM control)

5.0 V

7.2 V

IOUT (mA)

VIN

=4.0 V

0

20

40

60

80

100

1

10

100

1000

5.0 V

7.2 V

(3.3 V, 600 kHz, PWM/PFM control)

IOUT (mA)

VIN

=4.0 V

2. 3 S-8540A18FN

2. 4 S-8541A18FN

0

20

40

60

80

100

1

10

100

1000

(1.8 V, 600 kHz, PWM control)

3.6 V 5.0 V

IOUT (mA)

VIN

=2.5 V

0

20

40

60

80

100

1

10

100

1000

3.6 V

5.0 V

(1.8 V, 600 kHz, PWM/PFM control)

IOUT (mA)

VIN

=2.5 V

2. 5 S-8540C33FN

2. 6 S-8541C33FN

0

20

40

60

80

100

1

10

100

1000

(3.3 V, 600 kHz, PWM control)

3.6 V

5.0 V

IOUT (mA)

VIN

=2.5 V

0

20

40

60

80

100

1

10

100

1000

3.6 V

5.0 V

(3.3 V, 600 kHz, PWM/PFM control)

IOUT (mA)

VIN

=2.5 V

2. 7 S-8540C18FN

2. 8 S-8541C18FN

0

20

40

60

80

100

1

10

100

1000

(1.8 V, 300 kHz, PWM control)

3.6 V

5.0 V

IOUT (mA)

VIN

=2.5 V

0

20

40

60

80

100

1

10

100

1000

3.6 V

5.0 V

(1.8 V, 300 kHz, PWM/PFM control)

IOUT (mA)

VIN

=2.5 V

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S8540 Datasheet(PDF) 32 Page - Seiko Instruments Inc

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