LTC1693-1CS8 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC1693-1CS8

High Speed Single/Dual N-Channel MOSFET Drivers

Linear Technology 

TYPICAL APPLICATIONS

5V to 12V Boost Converter

R2

R1

D1

13k

7.5k

BAT85 1%

1%

VCC = 5V

C2

0.1µF

+

C3

4.7µF

8

1 LTC1693-3

7

C1

3

680pF

4

L1*

D2

22µH 1N5819

Q1

BS170

+

CL

47µF

VOUT

12V

50mA

INDUCTOR PEAK CURRENT ≈ 600mA

R2, C1 SET THE OSCILLATION FREQUENCY AT 200kHz

R1 SETS THE DUTY CYCLE AT 45%

EFFICIENCY ≈ 80% AT 50mA LOAD

*SUMIDA CDRH125-220

1693 TA06a

LTC1693

Output Voltage

18

VCC = 5V

50mA LOAD

16

14

12

10

8

6

35 40 45 50 55

DUTY CYCLE (%)

60 65

1693 TA06b

Efficiency

100

VCC = 5V

50mA LOAD

90

80

70

60

50

10

11 12 13 14 15 16

OUTPUT VOLTAGE (V)

1693 TA06c

15

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