1840 查看數據表（PDF） - Linear Technology
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1840 Datasheet PDF : 12 Pages
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U
OPERATIO
VOUT
(5V TO 12V)
REGULATOR
VFB
1.25V
FB
R1
69.8k
LTC1840*
IDAC
IDACOUTA
15(14) (IDACOUTB)
R2
23.2k
1840 F01
*ADDITIONAL DETAILS
OMITTED FOR CLARITY
Figure 1. Feedback Divider for 1.25V Reference
VOUT
BYS10-25
LTC1840
VOUT
(5V TO 12V)
REGULATOR
FB
1.3V
VFB
0.8V
R3
69.8k
LTC1840*
IDAC
IDACOUTA
15(14) (IDACOUTB)
R1
10k
1840 F02
R2
15k *ADDITIONAL DETAILS
OMITTED FOR CLARITY
Figure 2. Feedback Divider for 0.8V Reference
FAN 1
FAN 2
1840 F03
FAN 1, FAN 2: NMB 6820PL-04W-B49-D50
Figure 3. Series Diode to Avoid Beat Frequencies
PACKAGE DESCRIPTIO
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
0.189 – 0.196*
(4.801 – 4.978)
16 15 14 13 12 11 10 9
0.009
(0.229)
REF
0.229 – 0.244
(5.817 – 6.198)
0.150 – 0.157**
(3.810 – 3.988)
0.007 – 0.0098
(0.178 – 0.249)
0.015
(0.38
±
±
0.004
0.10)
×
45°
0° – 8° TYP
0.016 – 0.050
(0.406 – 1.270)
* 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
1 234 5678
0.053 – 0.068
(1.351 – 1.727)
0.004 – 0.0098
(0.102 – 0.249)
0.008 – 0.012
(0.203 – 0.305)
0.0250
(0.635)
BSC
GN16 (SSOP) 1098
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.
1840f
11
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