LTC3810-5 Datasheet, PDF (11/36 Pages) Linear Technology – 60V Current Mode Synchronous Switching Regulator Controller

LTC3810-5
FUNCTIONAL DIAGRAM
INTV_CC
EXTV_CC N_DRV INTV_CC
V_IN
R_UV1 UVIN
13
R_UV2
0.8V
MODE/SYNC
5
PLL/LPF
8
V_ON
2
R_ON ^ION
V_IN
31
5V
REG
–
V_IN UV
+
+
F
–
PLL-SYNC
0.8V
INTV_CC
REF
MODE
LOGIC
5.5V +
9V
4.2V
INTV_CC
UV
–
OFF
270μA
ON
1.4μA
100nA
t_ON
=
V_VON
I_ION
(76pF)
20k
I_CMP
R
SQ
+
I_REV
–
TIMEOUT
LOGIC
DRV OFF
FCNT
ON
SWITCH
LOGIC
SHDN
OV
×
1.4V
V_RNG
3
OVERTEMP
SENSE
I_TH’
FOLDBACK
FB
0.7V
I_TH
6
UV
2.6V 4V
C_C2
R_C
RUN
C_C1
EA
FAULT
+ ^SHDN –
OV
1.5V
0.8V
SS/TRACK SHDN
9
12
NDRV
14
INTV_CC
16
EXTV_CC
15
V_IN
M3
5.5V
+
D_B
4.7V
BOOST
27
TG
26
SW
25
SENSE⁺
24
DRV_CC
17
BG
18
BGRTN
19
SENSE^–
20
PGOOD
4
V_IN
+
C_IN
C_B
M1
L1
V_OUT
C_VCC
M2
+
C_OUT
R_FB1
0.72V
V_FB
7
0.88V
SGND
12
R_FB2
38105 FD
38105fc
11