LT1619 Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LT1619

Low Voltage Current Mode PWM Controller

Linear Technology 

LT1619

APPLICATIO S I FOR ATIO

CP

150pF

1

S/S

8

VIN

2

FB

7

DRV

LT1619

3

6

VC

GATE

RC

75k

CZ

15nF

4

GND

5

SENSE

CIN2

1µF

CERAMIC

CDRV +

0.1µF

CERAMIC

CIN1

300µF

VIN

L1

1µH

M1

FDS6680A

D1

×2

RSENSE

COUT1 +

220µF

×4

CIN1: SANYO POSCAP 6TPB150M ×2

COUT1: SANYO POSCAP 10TPB220M ×4

D1: MOTOROLA MBRB1545CT

L1: SUMIDA CEPH149-1R0

RSENSE: PANASONIC 0.002Ω 1W

COUT2

10µF

CERAMIC

5V

8A

R1

37400Ω

R2

12400Ω

1619 F15a

Figure 15a. 3.3V to 5V/8A Boost Converter

89

VIN = 3.3V

88

87

86

85

84

83

0.01

0.1

1

LOAD CURRENT (A)

10

1619 F15b

Figure 15b. Efficiency of the 5V/8A Boost Converter

14

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