8

LT1300

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7487

1

2

3

4

0.150 – 0.

(3.810 – 3.

8

7

6

5

0.189 – 0.197*

(4.801 – 5.004)

0.228 – 0.244

(5.791 – 6.197)

0.016 – 0.050

0.406 – 1.270

0.010 – 0.020

(0.254 – 0.508)

× 45°

0°– 8° TYP

0.008 – 0.010

(0.203 – 0.254)

SO8 0294

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).

S8 Package

8-Lead Plastic S0IC

© LINEAR TECHNOLOGY CORPORATION 1994

LT/GP 0394 10K • PRINTED IN USA

Four-Cell to 5V/3.3V Up-Down Converter

N8 Package

8-Lead Plastic DIP

N8 0392

0.009 – 0.015

(0.229 – 0.381)

0.300 – 0.320

(7.620 – 8.128)

0.325

+0.025

–0.015

+0.635

–0.381

8.255

()

0.045 ± 0.015

(1.143 ± 0.381)

0.100 ± 0.010

(2.540 ± 0.254)

0.065

(1.651)

TYP

0.045 – 0.065

(1.143 – 1.651)

0.130 ± 0.005

(3.302 ± 0.127)

0.020

(0.508)

MIN

0.018 ± 0.003

(0.457 ± 0.076)

0.125

(3.175)

MIN

12

3

4

87

6

5

0.250 ± 0.010

(6.350 ± 0.254)

0.400

(10.160)

MAX

+

100µF

22µF

35V

CONTRAST

VOUT –4V TO –29V 12mA

MAXIMUM FROM 1.8V SUPPLY

(77% EFFICIENT)

20mA MAXIMUM FROM

3V SUPPLY (83% EFFICIENT)

2.2µF

SW

PWM IN

0% TO 100%

CMOS DRIVE 0V TO 5V

150K

12K

12K

1

10

8

2

9

3

7

4

PGND

GND

SENSE

LT1300

SELECT

LT1300 TA6

1N5819

T1

T1 = DALE LPE-5047-AO45 (605) 665-9301

SHDN

SHUTDOWN

N/C

N/C

1.8V TO 6V

+

+

1N5817

2N4403

5V, 200mA

+

L1*

10µH

*SUMIDA CD54-100LC

COILCRAFT DO3316-223

100µF

100µF

470

Ω

0.1µF

2

×

AA

CELL

SW

PGND

GND

SENSE

LT1300

SELECT

LT1300 TA5

SHDN

NC

SHUTDOWN

+

Step-Up Converter with Automatic Output Disconnect

LCD Contrast Supply

1N5817

5V/3.3V

220mA

80% EFFICIENT

+

L1*

27µH

*L1, L2 = GOWANDA GA20-272K

COILCRAFT DO3316-273K

SUMIDA CD73-270K

**C1, C2, C3 = SANYO OS-CON 16SA100M

L2*

27µH

C1**

100µF

C2**

100µF

C3**

100µF

4

×

AA

CELL

SW

PGND

GND

SENSE

LT1300

SELECT

LT1300 TA3

5V/3.3V

2.5V

SHDN

SHUTDOWN

N/C

+

+