LTC1266 Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LTC1266

Synchronous Regulator Controller for N- or P-Channel MOSFETs

Linear Technology 

LTC1266

LTC1266-3.3/LTC1266-5

TYPICAL APPLICATIO S (Layout Assist Schematics)

VIN

4.3V TO 10V

(VIN (MIN) = 3.5V IF ILOAD < 100mA

0.1µF

+ CIN

100µF

20V

BINH

CT

200pF

CC

3300pF

RC

1k

1 TDRIVE

BDRIVE 16

2 PWR VIN

PGND 15

3 PINV

LBOUT 14

4 BINH

LBIN 13

5

VIN

LTC1266

SGND

12

6 CT

SHDN 11

7

ITH

VFB 10

8 SENSE– SENSE+ 9

1000pF

0.068Ω

1M

1M

*DALE LPT4545-A002

COILTRONICS CTX20-4

**MMBT2222ALT1

L*

20µH

D1

MBRS130LT3

Si9410DY

100pF

127k

1% +

15k

1%

VOUT

12V/500mA

C0UT

100µF

20V

Q1**

180k 1N4148

SHUTDOWN

100k

1266 F12

Figure 12. 5V to 12V/500mA High Efficiency Boost Regulator

18

VIN

4V TO PWR VIN – 4.5V

(VIN(MIN) = 3.5V IF ILOAD < 2.5A)

1µF

PWR VIN

VIN + 4.5V TO 18V

BINH

CT

180pF

CC

3300pF

RC

470Ω

*TOKO 919AS-4R7M

Si9410DY

1 TDRIVE

BDRIVE 16

Si9410DY

2 PWR VIN

PGND 15

3 PINV

14

LBOUT

4 BINH

13

LBIN

5

LTC1266-3.3

VIN

SGND

12

6 CT

SHDN 11 SHUTDOWN

7

ITH

10

NC

8 SENSE– SENSE+ 9

1000pF

+

D1

MBRS140T3

CIN

100µF

20V

2×

L*

5µH

+

RSENSE

0.02Ω

COUT

220µF

10V

2×

VOUT

3.3V

1266 F13 5A

Figure 13. All N-Channel 5V to 3.3V/5A Converter with Drivers Powered from External PWR VIN Supply

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