SC4501 데이터 시트보기 (PDF) - Semtech Corporation

부품명

상세내역

일치하는 목록

SC4501

2Amp, 2MHz Step-Up Switching Regulator with Soft-Start

Semtech Corporation 

SC4501

POWER MANAGEMENT

Typical Characteristics

Feedback Voltage vs Temperature

1.3

1.25

1.2

1.15

-50 -25

0 25 50 75 100 125

Temperature (ºC)

ROSC vs Switching Frequency

100

VIN = 2V

25ºC

10

1

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Frequency (MHz)

Switching Frequency

vs Temperature

1.7

ROSC = 7.68KΩ

1.6

VIN = 12V

1.5

VIN = 2V

1.4

1.3

-50 -25

0 25 50 75 100 125

Temperature (ºC)

Switch Saturation Voltage

vs Switch Current

400

25ºC

300

85ºC

200

-40ºC

100

0

0 0.5 1 1.5 2 2.5 3

Switch Current (A)

Switch Current Limit

vs Temperature

3

2.8

2.6

2.4

2.2

2

-50 -25 0

25 50 75 100

Temperature (ºC)

Minimum VIN vs Temperature

1.5

1.4

1.3

1.2

1.1

1

-50 -25

0 25 50 75 100 125

Temperature (ºC)

VIN Quiescent Current vs Temperature

1.3

Not Switching

1.2

VIN = 16V

1.1

1

VIN = 2V

0.9

0.8

-50 -25

0 25 50 75 100 125

Temperature (ºC)

VIN Current in Shutdown

vs Input Voltage

50

40

-40ºC

30

125ºC

20

10

0

0

VSHDN = 0

5

10

15

20

Input Voltage (V)

Shutdown Threshold

vs Temperature

1.20

VIN = 2V

1.15

1.10

1.05

1.00

-50 -25

0 25 50 75 100 125

Temperature (ºC)

© 2005 Semtech Corp.

6

www.semtech.com

Share Link: