LTC3714 Linear, LTC3714 Datasheet - Page 9

• Manufacturer Part Number: LTC3714
• Description: Wide Operating Range / Step-Down Controller with Internal Op Amp
• Manufacturer: Linear

PI FU CTIO S
INTV
and control circuits are powered from this voltage. De-
FU CTIO AL DIAGRA
U
U
CC
(Pin 28): Internal 5V Regulator Output. The driver
U
U
0.7V
V
RNG
13
U
240k
1.4V
0.7V
11
+
–
5.3
1
1
t
ON
V
OST
0.8V
=
ON
I
V
CMP
Q3
I
VON
ION
2.4V
+
–
Q1
(0.5 TO 2)
(10pF)
X
0.6V
21 I
+
Q2
20k
ON
EA
3.3 A
W
R
Q4
ON
–
Q6
R
S
+
–
14
Q
I
REV
0.6V
I
1 A
TH
Q5
R
C
1V
20 FCB
–
–
C
C1
OP
OP
SS
F
+
–
0.6V
+
+
17
16
4.7V
+
–
+
OP AMP
0.4V
15
19
SHDN
RUN
OPV
SGND
couple this pin to power ground with a minimum of 4.7 F
tantalum or other low ESR capacitor.
SHDN
–
FCNT
IN
ON
OV
26 EXTV
18
SWITCH
10
LOGIC
OPOUT
RUN/SS
CC
1.2 A
UV
OV
+
–
+
–
6V
C
SS
0.6V
REF
REG
5V
0.54V
0.66V
INTV
PGOOD
BOOST
SENSE
PGND
SW
TG
BG
28
12
6
5
4
3
1
2
27 V
CC
22
IN
R2
10k
+
V
INTV
C
C
FB
B
VCC
CC
5 (ALL VID PINS)
C
DAC
VID
R1
IN
M1
M2
V
19
V
IN
V
+
OSENSE
2.5 A
L1
OUT
23
24
25
3714 FD
7
8
9
SGND
VID0
VID1
VID2
VID3
VID4
C
OUT
LTC3714
9
3714f