LT3959EUHE View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LT3959EUHE

Wide Input Voltage Range Boost/SEPIC/Inverting Converter with 6A, 40V Switch

Linear Technology 

LT3959

Typical Applications

2.5V to 5V Input, –5V Output Inverting Converter

VIN

2.5V TO 5V

CDC

4.7µF, 25V

L1A

X7R

L1B

CIN

47µF

10V

X5R

124k

22k

VIN

PGOOD

EN/UVLO

SW

DRIVE

121k

LT3959

SYNC

GND

SGND

GNDK

FBX

D2

D1

1µF

16V

X5R

RT

27.4k

300kHz

SS

VC INTVCC

0.1µF 9.09k

CVCC

4.7µF

10V

10nF X5R

L1A, L1B: COILTRONICS DRQ127-3R3

D1: VISHAY 6CWQ03FN

D2: PHILIPS PMEG2005EJ

COUT

47µF

10V

X5R

×2

VOUT

–5V

1A

84.5k

15.8k

3959 TA02

Efficiency vs Output Current

100

VIN = 5V

90

80

70

60

50

0

200 400 600 800 1000

OUTPUT CURRENT (mA)

3759 TA02a

3959fa

20

For more information www.linear.com/LT3959

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