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LTC1706-81 Datasheet(PDF) 7 Page - Linear Technology

Part No. LTC1706-81
Description  5-Bit Desktop VID Voltage Programmer
Download  8 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC1706-81 Datasheet(HTML) 7 Page - Linear Technology

   
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LTC1706-81
APPLICATIONS INFORMATION
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
* DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH,
PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
0.021
± 0.006
(0.53
± 0.015)
0
° – 6° TYP
SEATING
PLANE
0.007
(0.18)
0.040
± 0.006
(1.02
± 0.15)
0.009
(0.228)
REF
0.006
± 0.004
(0.15
± 0.102)
0.034
± 0.004
(0.86
± 0.102)
0.0197
(0.50)
BSC
MSOP (MS10) 1098
12 3 45
0.193
± 0.006
(4.90
± 0.15)
8
9
10
7 6
0.118
± 0.004*
(3.00
± 0.102)
0.118
± 0.004**
(3.00
± 0.102)
MS10 Package
10-Lead Plastic MSOP
(LTC DWG # 05-08-1661)
When a VID input is grounded, there will be a higher
quiescent current flow from VCC because of a resistor from
VCC through a series diode to each one of the inputs. This
increase in quiescent current is calculated from:
IQ = N(VCC – VDIODE)/RPULLUP
N is the number of grounded VID inputs. VDIODE is typically
0.6V while RPULLUP has a typical pull-up resistance of
40k
Ω.
In other words, each VID input has a typical pull-up current
of 68
µA for a 3.3V system.
Besides the LTC1629, the LTC1706-81 also programs a
whole family of LTC DC/DC converters that have an onboard
0.8V reference. The LTC1628, LTC1735, LTC1622,
LTC1772 and LTC1929 are just a few of the high efficiency
step-down switching regulators that will work equally well
with the LTC1706-81.
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.


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