SC187 datasheet(7/17 Pages) SEMTECH

部件名	SC187

功能描述	4A, 2.2MHz Synchronous Step-Down Regulator with 15 Preset Output Voltages

PDF	17 Pages

Scroll/Zoom	100%

制造商	SEMTECH [Semtech Corporation]

网页	http://www.semtech.com

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7 / 17 page

TBD

SC187

Typical Characteristics

Efficiency

Circuit Conditions: C

IN = 22µF/6.3V, COUT = 2 x 22µF/6.3V, CSS = 10nF. Unless otherwise noted, L = 1.0µH (TOKO: FDV0530S-1R0).

DS(ON) Variation vs. Input Voltage

DS(ON) Variation vs. Temperature

-10

-5

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Input Voltage (V)

ILX = ±100mA, TA = 25°C

N-Channel

P-Channel

-20

-15

-10

-5

-40

-15

N-Channel

P-Channel

ILX = ±100mA, TA = 25°C

Ambient Temperature (°C)

Total Loss

Load Regulation

-0.5%

-0.4%

-0.3%

-0.2%

-0.1%

0.0%

0.1%

0.2%

0.3%

0.4%

0.5%

0.5

1.5

2.5

3.5

Output current(A)

Vin=5V,Vout=3.3V

Vin=5V,Vout=1.5V

Vin=3.3V,Vout=1.5V

A = 25 °C

100

Output current(A)

Vin=5V,Vout=3.3V

Vin=5V,Vout=1.5V

Vin=3.3V,Vout=1.5V

0.2

0.4

0.6

0.8

1.2

1.4

1.6

1.8

0.5

1.5

2.5

3.5

Output current(A)

Vin=5V,Vout=3.3V

Vin=5V,Vout=1.5V

Vin=3.3V,Vout=1.5V

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