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LTC1705 Datasheet(PDF) 10 Page - Linear Technology

Part No. LTC1705
Description  Dual 550kHz Synchronous Switching Regulator Controller with 5-Bit VID and 150mA LDO
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1705 Datasheet(HTML) 10 Page - Linear Technology

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LTC1705
10
Table 1. VID Inputs and Corresponding Core Output Voltages
CODE
VID4
VID3
VID2
VID1
VID0
VOUTC
00000
Gnd
Gnd
Gnd
Gnd
Gnd
2.00V
00001
Gnd
Gnd
Gnd
Gnd
Float
1.95V
00010
Gnd
Gnd
Gnd
Float
Gnd
1.90V
00011
Gnd
Gnd
Gnd
Float
Float
1.85V
00100
Gnd
Gnd
Float
Gnd
Gnd
1.80V
00101
Gnd
Gnd
Float
Gnd
Float
1.75V
00110
Gnd
Gnd
Float
Float
Gnd
1.70V
00111
Gnd
Gnd
Float
Float
Float
1.65V
01000
Gnd
Float
Gnd
Gnd
Gnd
1.60V
01001
Gnd
Float
Gnd
Gnd
Float
1.55V
01010
Gnd
Float
Gnd
Float
Gnd
1.50V
01011
Gnd
Float
Gnd
Float
Float
1.45V
01100
Gnd
Float
Float
Gnd
Gnd
1.40V
01101
Gnd
Float
Float
Gnd
Float
1.35V
01110
Gnd
Float
Float
Float
Gnd
1.30V
01111*
Gnd
Float
Float
Float
Float
1.25V
VID PROGRA
I G CODES
10000
Float
Gnd
Gnd
Gnd
Gnd
1.275V
10001
Float
Gnd
Gnd
Gnd
Float
1.250V
10010
Float
Gnd
Gnd
Float
Gnd
1.225V
10011
Float
Gnd
Gnd
Float
Float
1.200V
10100
Float
Gnd
Float
Gnd
Gnd
1.175V
10101
Float
Gnd
Float
Gnd
Float
1.150V
10110
Float
Gnd
Float
Float
Gnd
1.125V
10111
Float
Gnd
Float
Float
Float
1.100V
11000
Float
Float
Gnd
Gnd
Gnd
1.075V
11001
Float
Float
Gnd
Gnd
Float
1.050V
11010
Float
Float
Gnd
Float
Gnd
1.025V
11011
Float
Float
Gnd
Float
Float
1.000V
11100
Float
Float
Float
Gnd
Gnd
0.975V
11101
Float
Float
Float
Gnd
Float
0.950V
11110
Float
Float
Float
Float
Gnd
0.925V
11111*
Float
Float
Float
Float
Float
0.900V
*01111 and 11111 are defined by Intel to signify “no CPU.” The LTC1705
generates the output voltages shown if these codes are selected.
CODE
VID4
VID3
VID2
VID1
VID0
VOUTC
BGC
IMAXC
COMPC
FBC
VFBC
VCC
PVCC
LTC1705
SWC
PGND
GND
SWIO
VINCLK
SENSEC
BOOSTC
TGC
1705 TC
VIDO:4
RUN/SS
RUN/SS
BGIO
IMAXIO
COMPIO
FBIO
VFBIO
VOUTCLK
BOOSTIO
IVINCLK
IBOOSTIO
IBOOSTC
IPVCC
IVCC
5V
TGIO
PGOOD
VOUTCLK
2k
2k
0.1
µF
100
µF
+
10
µF
+
1000pF
1000pF
2000pF
2000pF
fOSCIO
fOSCC
Test Circuit 1
TEST CIRCUIT


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