SC631EVB datasheet(7/14 Pages) SEMTECH

Part #	SC631EVB

Description	Fixed 4.4V Output Charge Pump Regulator

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Manufacturer	SEMTECH [Semtech Corporation]

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SC631

7

Ripple — 1x Mode

Time (10μs/div)

V

IN -PP

(20mV/div)

V

OUT -PP

(20mV/div)

I

OUT

(200mA/div)

V

IN

= 5.2V, V

OUT

= 4.4V, I

OUT

= 400mA

C

IN

=C

OUT

=22μF (0805)

C

1

=C

2

=2.2μF (0603)

Ripple — 1.5x Mode

Ripple — 2x Mode

V

IN -PP

(100mV/div)

V

OUT -PP

(100mV/div)

I

OUT

(200mA/div)

V

IN -PP

(50mV/div)

V

OUT -PP

(50mV/div)

I

OUT

(200mA/div)

Time (10μs/div)

C

IN

=C

OUT

=22μF (0805)

C

1

=C

2

=2.2μF (0603)

C

IN

=C

OUT

=22μF (0805)

C

1

=C

2

=2.2μF (0603)

0mA

400mA

V

IN

= 4.2V, V

OUT

= 4.4V, I

OUT

= 400mA

V

IN

= 3.2V, V

OUT

= 4.4V, I

OUT

= 400mA

0mA

400mA

0mA

400mA

Startup (No Load)

V

IN

= 3.6V, I

OUT

= 0mA

V

EN

(2V/div)–

0V—

V

OUT

(2V/div)–

0V—

I

OUT

(200mA/div)

Startup (400mA)

V

IN

= 3.6V, I

OUT

= 400mA

V

EN

(2V/div)–

0V —

V

OUT

(2V/div)–

0V—

I

OUT

(200mA/div)–

Typical Characteristics (continued)

Time (200μs/div)

Quiescent Current

V

OUT

= 5V, I

OUT

= 1mA

0.5

1.0

1.5

2.0

2.5

2.90

3.16

3.42

3.68

3.94

4.20

-45C

25C

85C

V

IN (V)

C

IN

=C

OUT

=22μF (0805)

C

1

=C

2

=2.2μF (0603)

C

IN

=C

OUT

=22μF (0805)

C

1

=C

2

=2.2μF (0603)

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