LT1933ES6 데이터 시트보기 (PDF) - Linear Technology

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LT1933ES6

600mA, 500kHz Step-Down Switching Regulator in SOT-23 and DFN Packages

Linear Technology 

LT1933

APPLICATIONS INFORMATION

CLOSING SWITCH

SIMULATES HOT PLUG

IIN VIN

LT1933

+

2.2μF

VIN

20V/DIV

LOW

IMPEDANCE

ENERGIZED

24V SUPPLY

STRAY

INDUCTANCE

DUE TO 6 FEET

(2 METERS) OF

TWISTED PAIR

IIN

5A/DIV

(6a)

DANGER!

RINGING VIN MAY EXCEED

ABSOLUTE MAXIMUM

RATING OF THE LT1933

20μs/DIV

+

10μF +

35V

AI.EI.

LT1933

2.2μF

VIN

20V/DIV

IIN

5A/DIV

(6b)

20μs/DIV

1Ω

LT1933

VIN

+

20V/DIV

0.1μF

2.2μF

IIN

5A/DIV

20μs/DIV

1933 F06

(6c)

Figure 6. A Well Chosen Input Network Prevents Input Voltage Overshoot and

Ensures Reliable Operation When the LT1933 is Connected to a Live Supply

1933fe

14

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