SC4517A 데이터 시트보기 (PDF) - Semtech Corporation

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SC4517A

1.25MHz, 1.5A Step-Down Switching Regulator

Semtech Corporation 

SC4517A

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: VIN = 12V, VCOMP = 0.8V, VBST = VIN + 5V, EN = Tied to VIN, SYNC = 0, SW = open.

TA = TJ = -40°C to 125°C.

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

Enable Input Threshold Voltage

VIH

VIL

Enable Input Bias Current

IIL

IIH

SYNC Threshold Voltage

EN = 100mV below threshold

2

0.4

-10

7

15

1.5

SYNC Input Frequency (3)

1.6

2

SYNC Pin Resistance

VSYNC = 0.5V

20

Notes:

(1) The device is not guaranteed to function outside of its operating condition.

The required minimum input voltage for a regulated output depends on the output voltage and load condition.

(2) Guaranteed by design.

(3) For SYNC applications, please contact factory.

UNITS

V

V

µA

µA

V

MHz

kΩ

Marking Information

Adjustable Options (MSOP)

Voltage Options (MSOP)

SC4517AIMS

SC4517AIMSXX

APAJ

yyww

AP50

yyww

yyww = Date Code (Example: 0012)

xxxx = Semtech Lot No. (Example: E901

xxxx

01-1)

Adjustable Options (MLPD)

SC4517AIML

SC

4517

yyww

yyww = Date Code (Example: 0012)

 2006 Semtech Corp.

Part Number Code (Example: AP50 = 5.0V (50)

yyww = Date Code (Example: 0012)

xxxx = Semtech Lot No. (Example: E901

xxxx

01-1)

Voltage Options (MLPD)

SC4517AIMLXX

4517

XX

yyww

Part Number Code (Example: XX = 5.0V (50)

yyww = Date Code (Example: 0012)

4

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