ltc1709-7 Linear Technology Corporation, ltc1709-7 Datasheet - Page 9
![no-image](/images/manufacturer_photos/0/3/389/linear_technology_corporation_sml.jpg)
ltc1709-7
Manufacturer Part Number
ltc1709-7
Description
2-phase, 5-bit Vid, Current Mode, High Efficiency, Synchronous Step-down Switching Regulator
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC1709-7.pdf
(28 pages)
- Current page: 9 of 28
- Download datasheet (319Kb)
FU CTIO AL DIAGRA
f
IN
U
R6
R5
V
R
C
IN
+
V
5V
LP
LP
SEC
ATTENOUT
PLLFLTR
DIFFOUT
ATTENIN
EXTV
PGOOD
INTV
PLLIN
SGND
V
V
FCB
V
OS
OS
IN
CC
–
+
0.18 A
CC
50k
U
10k
3V
OSCILLATOR
4.8V
PHASE DET
0.80V
4.5V
R1
–
+
–
+
A1
–
+
+
–
CLK1
CLK2
TO SECOND
CHANNEL
–
+
–
+
INTERNAL
SUPPLY
V
LDO
REG
5V
REF
0.86V
EAIN
0.74V
FCB
VID0
W
VID1
DUPLICATE FOR SECOND
CONTROLLER CHANNEL
5-BIT VID DECODER
VID2
6V
1.2 A
VID3
4(V
0.86V
FB
SLOPE
COMP
)
VID4
I
S
R
1
0.55V
–
+
Q
Q
–
TYPICAL ALL
40k
DROP
VID PINS
OUT
DET
+
45k
–
+
B
4(V
SHDN
+
RST
FB
)
BOT
V
TOP ON
–
BIAS
SHDN
FCB
START
45k
SOFT
RUN
OV
–
+
2.4V
EA
I
2
SWITCH
–
+
+
–
LOGIC
V
FB
0.80V
0.86V
TOP
BOT
INTV
CC
INTV
30k
30k
CC
SENSE
SENSE
BOOST
RUN/SS
PGND
EAIN
SW
TG
BG
I
TH
+
–
INTV
CC
C
C
D
•
D
C2
C
C
B
SEC
B
C
R
•
SS
C
V
LTC1709-7
IN
R
SENSE
D1
+
C
IN
9
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