19

LTC1148

LTC1148-3.3/LTC1148-5

TYPICAL APPLICATIO S

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.

S14 0695

1

2

3

4

0.150 – 0.157**

(3.810 – 3.988)

14

13

0.337 – 0.344*

(8.560 – 8.738)

0.228 – 0.244

(5.791 – 6.197)

12

11

10

9

5

6

7

8

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)

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)

TYP

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

*

**

1

2

3

4

5

6

7

14

13

12

11

10

9

8

P-DRIVE

NC

N-DRIVE

NC

PGND

SGND

SHUTDOWN

LTC1148

1

µF

1000pF

0.05

Ω

SHUTDOWN

*L

50

µH

NDS9410A

D1

MBRS140T3

+

5.2V TO 14V

220

µF

10V

×2

OS-CON

3.3V/2A

OR 5V/2A

3300pF

1k

390pF

*COILTRONICS CTX50-2-MP

**KRL SL-1-C1-0R050R

LTC1148 • F17

10nF

NDS9435A

100

µF

20V

100pF

R1B

43k

1%

R2

56k

1%

R1A

33k

1%

VN2222LL

Figure 17. Logic Selectable 5V/1A or 3.3V/1A High Efficiency Regulator

N14 1197

0.255

± 0.015*

(6.477

± 0.381)

0.770*

(19.558)

MAX

3

1

2

4

5

6

7

8

9

10

11

12

13

14

0.020

(0.508)

MIN

0.125

(3.175)

MIN

0.130

± 0.005

(3.302

± 0.127)

0.045 – 0.065

(1.143 – 1.651)

0.065

(1.651)

TYP

0.018

± 0.003

(0.457

± 0.076)

0.100

± 0.010

(2.540

± 0.254)

0.005

(0.125)

MIN

0.009 – 0.015

(0.229 – 0.381)

0.300 – 0.325

(7.620 – 8.255)

0.325

+0.035

–0.015

+0.889

–0.381

8.255

()

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)

S Package

14-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

N Package

14-Lead PDIP (Narrow 0.300)

(LTC DWG # 05-08-1510)

PACKAGE DESCRIPTIO

Dimensions in inches (millimeters) unless otherwise noted.