LTC1840

11

1840f

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

PACKAGE DESCRIPTIO

OPERATIO

Figure 1. Feedback Divider for 1.25V Reference

Figure 3. Series Diode to Avoid Beat Frequencies

Figure 2. Feedback Divider for 0.8V Reference

(5V TO 12V)

R1

69.8k

R2

23.2k

1.25V

REGULATOR

FB

15(14)

LTC1840*

1840 F01

*ADDITIONAL DETAILS

OMITTED FOR CLARITY

(5V TO 12V)

R3

69.8k

R1

10k

R2

15k

0.8V

1.3V

REGULATOR

FB

15(14)

LTC1840*

1840 F02

*ADDITIONAL DETAILS

OMITTED FOR CLARITY

BYS10-25

FAN 1

FAN 2

FAN 1, FAN 2: NMB 6820PL-04W-B49-D50

1840 F03

GN Package

16-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

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.