27

LTC1436A

LTC1436A-PLL/LTC1437A

G28 SSOP 0694

0.301 – 0.311

(7.65 – 7.90)

12 3

4

5

6 7 8

9 10 11 12

14

13

0.397 – 0.407*

(10.07 – 10.33)

25

26

22 21 20 19 18 17 16 15

23

24

27

28

0.068 – 0.078

(1.73 – 1.99)

0.002 – 0.008

(0.05 – 0.21)

0.0256

(0.65)

BSC

0.010 – 0.015

(0.25 – 0.38)

0.005 – 0.009

(0.13 – 0.22)

0

° – 8°

0.022 – 0.037

(0.55 – 0.95)

0.205 – 0.212**

(5.20 – 5.38)

DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD

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

*

**

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.

GN24 (SSOP) 0595

* 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

0.016 – 0.050

(0.406 – 1.270)

0.015

± 0.004

(0.38

± 0.10)

× 45°

0

° – 8° TYP

0.0075 – 0.0098

(0.191 – 0.249)

0.053 – 0.069

(1.351 – 1.748)

0.008 – 0.012

(0.203 – 0.305)

0.004 – 0.009

(0.102 – 0.249)

0.025

(0.635)

BSC

0.337 – 0.344*

(8.560 – 8.737)

12

3

4

5

6

7

8

9 10 11 12

0.229 – 0.244

(5.817 – 6.198)

0.150 – 0.157**

(3.810 – 3.988)

16

17

18

19

20

21

22

23

24

15 14 13

GN Package

24-Lead Plastic SSOP (Narrow 0.150)

(LTC DWG # 05-08-1641)

Dimensions in inches (millimeters) unless otherwise noted.

LTC1436A-PLL Low Noise High Efficiency 5V/1A Regulaor

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

+

+

+

+

PLL LPF

RUN/SS

SFB

SGND

AUXON

AUXFB

PLLIN

POR

BOOST

TGL

SW

TGS

BG

PGND

AUXDR

0.01

µF

22

µF

35V

EXT CLOCK

250kHz

SFB = 0V: CONTINUOUS MODE

SFB = 5V: BURST ENABLED

100

µF

10V

R1

240k

1%

R2

56k

1%

100pF

100pF

510pF

M1

IRF7201

M2

IRF7201

MBRS140T3

SGND

(PIN 6)

1436 TA07

L1

50

µH

47k

0.1

Ω

5.5V TO 28V

ZETEX

FMMT549

HEAT SINK

5V

1A

V1

6.3V

M3

IRLML2803

4.7

µF

22

µF

R8

180k

1%

R7

56k

1%

51pF

0.1

µF

CMDSH-3

LTC1436A-PLL

1000pF

ON/OFF

10k

51pF

0.1

µF

39pF

G Package

28-Lead Plastic SSOP (0.209)

(LTC DWG # 05-08-1640)