LT3580EMS8E-TRPBF(RevC) Ver la hoja de datos (PDF) - Linear Technology

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componentes Descripción

Fabricante

LT3580EMS8E-TRPBF
(Rev.:RevC)

Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization

Linear Technology 

LT3580

TYPICAL APPLICATIONS

–5V Output Inverting Converter Switches at 2.5MHz and Accepts Inputs Between 3.3V to 12V

VIN

3.3V TO 12V

L1

4.7μH

C3

1μF

C1

2.2μF

VIN

SHDN

SW

GND

LT3580

RT

FB

SYNC

VC

SS

35.7k

0.1μF

C1: 2.2μF, 25V, X5R, 1206

C2: 10μF, 25V, X5R, 1206

C3: 1μF, 50V, X5R, 0805

D1: CENTRAL SEMI CMMSH1-40

L1, L2: COILCRAFT LSP4018-472ML

L2

4.7μH

D1

60.2k

VOUT

–5V

800mA (VIN = 12V)

C2 620mA (VIN = 5V)

10μF 450mA (VIN = 3.3V)

10k 100pF

2.2nF

3580 TA08a

Efficiency and Power Loss

vs Load Current

85

VIN = 5V

80

75

70

1200

1000

800

65

600

60

55

400

50

200

45

40

0

0

100 200 300 400 500 600 700

LOAD CURRENT (mA)

3580 TA08b

3580fc

25

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