LTC3813 Datasheet, PDF (10/32 Pages) Linear Technology – 100V Current Mode Synchronous Step-Up Controller

LTC3813
FUNCTIONAL DIAGRAM
10V +
–
OFF
V_IN
R_UV1 UVIN
5V
0.8V
REG
REF
14
R_{UV2 SYNC}
7
PLL/LPF
0.8V
PLL-SYNC
–
V_IN UV
+
INTV_CC
UV
6.2V
ON
10
R_OFF
V_OUT
V_OFF
4
I_OFF
1
t_OFF =VI_IVOOFFFF (76pF)
I_CMP
R
SQ
20k
OVERTEMP
SENSE
ON
SWITCH
LOGIC
SHDN
OV
s
1.4V
V_RNG
5
FAULT
1.4μA _RUN
+ ^SHDN –
I_TH
0.7V
8
–
+
1.5V
UV
2.6V
C_C2
R_C
4V
C_C1
EA
SHDN
13
OV
NDRV
15
INTV_CC
17
EXTV_CC
16
V_IN
M3
10V
D_B
BOOST
6.7V
28
TG
27
SW
26
SENSE⁺
25
DRV_CC
18
BG
19
BGRTN
20
SENSE^–
21
PGOOD
6
V_IN
C_IN
L
C_B
V_OUT
M1
C_VCC
M2
+
C_OUT
R2
0.72V
V_FB
9
R1
SGND
12
0.85V
0.8V
SS
11
3813 FD
3813fb
10