LTC1265IS Ver la hoja de datos (PDF) - Linear Technology

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LTC1265IS

1.2A, High Efficiency Step-Down DC/DC Converter

Linear Technology 

LTC1265/LTC1265-3.3/LTC1265-5

TYPICAL APPLICATIONS

5V Buck-Boost Converter

VIN (V)

3.5

4.0

5.0

6.0

7.0

7.5

IOUT(MAX) (mA)

240

275

365

490

610

665

L1B

L1A

32

TOP VIEW

4 1•

L1B

L1A

VIN

3.5V TO 7.5V

75pF

3300pF

1k

*SANYO OS-CON CAPACITOR

**IRC LRC2010-01-R162-J

†L1A, L2A SELECTION

MANUFACTURER PART NO.

COILTRONICS

DALE

CTX33-4

LPT4545-330LA

2

1, 13

VIN

4

LBIN

PWR VIN

14

SW

LTC1265

3

12

LBOUT

PGND

5

CT

11

SGND

+

0.1µF

10

SHDN SHDN

6

ITHR

7 SENSE –

9

VFB

SENSE+ 8

0.01µF

CIN*

100µF

16V

33µF

10V*

4

• L1B††

33µH

3

RSENSE**

0.162Ω

L1A††

33µH

1

2

1N5818

VOUT

5V

75k

+ COUT*

100µF

10V

100pF 25k

LTC1265 F09

9V to 12V and – 12V Outputs

VIN (V)

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

12.0

IOUT(MAX) (mA)

40

60

80

100

115

130

150

165

180

VIN

4V TO 12V

75pF

L1B

L1A

32

TOP VIEW

4 1•

L1B

L1A

3300pF

1k

*AVX TPSE686K020

**AVX TPSE336K025

†IRC LRC2010-01-R162-J

††L1A,L2A SELECTION

MANUFACTURER

COILTRONICS

DALE

PART NO.

CTX50-4

LPT4545-500LA

MBRS130LT3

2

VIN

4

LBIN

1, 13

PWR VIN

14

SW

+

0.1µF

1N914

CIN*

68µF

20V

33µF**

25V

LTC1265

3

12

LBOUT

PGND

5

CT

11

SGND

10

SHDN SHDN

SI19430DY

4

•

3

L1B††

50µH

6

ITHR

9

VFB

7 SENSE – SENSE+ 8

0.01µF

RSENSE*

0.162Ω

L1A††

50µH

1

2

MBRS130LT3

100pF

COUT*

68µF

20V

VOUT

–12V

VOUT

12V

301k

+ COUT*

68µF

20V

34k

LTC1265 TA05

14

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