LTC1473CGN#TRPBF Datasheet LTC1473IGN#PBF, LTC1473CGN#PBF, LTC1473CGN#TRPBF | P13-P15

13

LTC1473

TYPICAL APPLICATIONS

U

R

SENSE

0.015Ω

Q1

Si4412DY

C4

0.1µF

D1

CMDSH-3

C3

4.7µF

16V

D2

MBRS140T3

C

IN

22µF

35V

× 2

C

OUT

100µF

10V

× 3

V

OUT

5V/3.5A

Q2

Si4412DY

+

R1

105k

1%

L1*

10µH

SGND

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

C1

100pF

C5

1000pF

C

SS

, 0.1µF

C

C2

, 51pF

C

OSC

57pF

R

C

, 10k

C

330pF

+

C6

100pF

C2, 0.1µF

R2

20k

1%

4700pF

C

TIMER

C7

1µF

C8

1µF

GND

SW

BOOST

GND

UV

GND

OVP

CLP

CLN

COMP1

SENSE

GND

V

CC1

V

CC2

V

CC3

PROG

V

C

UVOUT

GND

COMP2

BAT

SPIN

LT

®

1511

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

DCIN

OUT A

V

–

IN

+

A

IN

–

B

OUT B

V

+

REF

HYST

LTC1442

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

1

2

3

4

8

7

6

5

74C00

12

3

4

5

6

13

12

11

14

MMBD2838LT1

D5

MBRD340

C11

0.47µF

D6

MBR0540T

D4

MBRD340

L3***

20µH

2,3

1,4

C10

1µF

R13

5.1k

1%

R12

3k

1%

C16

220pF

R

SENSE

0.033Ω

R20

395k

0.1%

R21

164k

0.1%

C17

10µF

8.4V

Li-Ion

BATTERY

R19

200Ω

1%

R15

1k

C15

0.33µF

R16

300Ω

C14

1µF

R17

4.93k

C12

10µF

C13

10µF

R

SENSE

0.033Ω

R14

510Ω

R6

900k

1%

R7

130k

1%

R9

113k

1%

R8

427k

1%

R10

50k

1%

R11

1132k

1%

C9

0.1µF

R5

500k

7

L2**

1mH

R18, 200Ω, 1%

1473 TA03

*SUMIDA CDRH125-10

**COILCRAFT 1812LS-105XKBC

***COILTRONICS CTX20-4

10

9

8

Si9926DY

R

SENSE

0.033Ω

IN1

IN2

DIODE

TIMER

V

+

V

GG

SW

GND

GA1

SAB1

GB1

SENSE

+

SENSE

–

GA2

SAB2

GB2

LTC1473

Si9926DY

D3

6.8V

TG

BOOST

SW

V

IN

INTV

CC

BG

PGND

EXTV

CC

C

OSC

RUN/SS

I

TH

SFB

SGND

V

OSENSE

SENSE

–

SENSE

+

LTC1735

8

+

V

OUT

Complete Front End Including Battery Charger and DC/DC Converter with Automatic Switchover Between Battery and DCIN

14

LTC1473

TYPICAL APPLICATION

U

Protected Automatic Switchover Between Two Supplies

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

IN1

IN2

DIODE

TIMER

V

+

V

GG

SW

GND

GA1

SAB1

GB1

SENSE

+

SENSE

–

GA2

SAB2

GB2

LTC1473

+

L1*, 1mH

C5

1µF

+

C7

1µF

C6

4700pF

–

+

5

6

7

–

+

3

2

1

8

4

1M

10k

1M

SUPPLY V2

SUPPLY V1

1M

1µF

5V

18

3

LT1121-5

D1

MMBD2838LT1

Q1

Si9926DY

Q2

Si9926DY

R3

0.033Ω

OUT

*1812LS-105XKBC, COILCRAFT

1473 TA04

LT1490

15

LTC1473

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

GN Package

16-Lead Plastic SSOP (Narrow 0.150)

(LTC DWG # 05-08-1641)

Dimensions in inches (millimeters) unless otherwise noted.

PACKAGE DESCRIPTION

U

GN16 (SSOP) 1098

* DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

12

3

4

5

6

7

8

0.229 – 0.244

(5.817 – 6.198)

0.150 – 0.157**

(3.810 – 3.988)

16

15

14

13

0.189 – 0.196*

(4.801 – 4.978)

12 11 10

9

0.016 – 0.050

(0.406 – 1.270)

0.015

± 0.004

(0.38 ± 0.10)

× 45°

0° – 8° TYP

0.007 – 0.0098

(0.178 – 0.249)

0.053 – 0.068

(1.351 – 1.727)

0.008 – 0.012

(0.203 – 0.305)

0.004 – 0.0098

(0.102 – 0.249)

0.0250

(0.635)

BSC

0.009

(0.229)

REF

LTC1473CGN#TRPBF

LTC1473CGN#TRPBF

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