LT3471 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LT3471

Dual 1.3A, 1.2MHz Boost/Inverter in 3mm × 3mm DFN

Linear Technology 

TYPICAL APPLICATIONS

Single Li-Ion Cell to 5V, 12V Boost Converter

CONTROL 1

1.8V

OV

VIN

2.6V TO 4.2V

CONTROL 2

1.8V

0V

RSS1

4.7k

CSS1

0.33μF

C1

RSS2 4.7μF

4.7k

CSS2

0.33μF

L1

3.3μH

VIN

9 SHDN/SS1

10

SW1

8

VIN

LT3471

1

FB1N

FB1P 2

3

VREF

4

FB2P

7 SHDN/SS2

GND

5

FB2N

SW2

11

L2

6.8μH

6 3471 TA03

VIN

D1

C5

100pF

C2

0.1μF

D2

C6

220pF

R1

20k

R2

4.99k

R3

54.9k

R4

4.99k

C1-C3: X5R OR X7R 6.3V

C4: X5R OR X7R 16V

D1, D2: ON SEMICONDUCTOR MBRM-120

L1: SUMIDA CR43-3R3

L2: SUMIDA CR43-6R8

LT3471

C3

10μF

VOUT1

5V

900mA IF VIN = 4.2V

630mA IF VIN = 3.3V

425mA IF VIN = 2.6V

C4

10μF

VOUT2

12V

300mA IF VIN = 4.2V

210mA IF VIN = 3.3V

145mA IF VIN = 2.6V

3471fb

13

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