LTC3714_15 Datasheet, PDF (9/28 Pages) Linear Technology – Intel Compatible, Wide Operating Range, Step-Down Controller with Internal Op Amp

LTC3714
Pin Functions
INTV_CC (Pin 28): Internal 5V Regulator Output. The driver
and control circuits are powered from this voltage. De-
couple this pin to power ground with a minimum of 4.7µF
tantalum or other low ESR capacitor.
Functional Block Diagram
11 V_ON
R_ON
21 I_ON
0.7V
2.4V
20 FCB
1µA
26 EXTV_CC
4.7V
+–
1
OST
t_ON
=
V_VON
I_ION
(10pF)
20k
I_CMP
1.4V
V_RNG
13
0.7V
X
(0.5 TO 2)
R
SQ
0.6V
–+
F
+
I_REV
–
FCNT
ON
SWITCH
LOGIC
SHDN
OV
V_IN
27 V_IN
+
C_IN
0.6V
REF
5V
REG
BOOST
6
TG
5
SW
4
SENSE
3
INTV_CC
28
BG
1
PGND
2
PGOOD
12
C_B
C_VCC
M1
L1
V_OUT
+
M2
C_OUT
3.3µA
1
240k
1V
Q2 Q4
Q6
0.54V
UV
Q3 Q1
+– _0.8V
×5.3
EA
0.6V
Q5
SS
–+
0.6V
14 ITH _RC ^CC1
RUN
SHDN
OV
0.66V
1.2µA
6V
0.4V
10 RUN/SS ^CSS
OP⁺ 17
OP^– 16
15 OPVIN
+
OP AMP
–
19 SGND
18 OPOUT
V_OSENSE
23
R2
10k
5× (ALL VID PINS)
INTV_CC
2.5µA
7 VID0
8 VID1
VID
DAC
9 VID2
24 VID3
25 VID4
22 VFB ^R1
19 SGND
3714 FD
3714f
9