LTC3814-5_15 Datasheet, PDF (9/30 Pages) Linear Technology – 60V Current Mode Synchronous Step-Up Controller

FUNCTIONAL DIAGRAM
V_IN
V_OFF
2
INTV_CC
5V
0.8V
REG
REF
R_OFF ^IOFF
V_OUT
1
t_OFF =VI_IVOOFFFF (76pF)
20k
I_CMP
R
SQ
OVERTEMP
SENSE
×
1.4V
V_RNG
3
I_TH ^0.7V
5
C_C2
R_C
2.6V
C_C1
EA
0.8V
FAULT
LTC3814-5
5.5V +
–
OFF
NDRV
9
INTV_CC
11
EXTV_CC
10
V_IN
M3
ON
INTV_CC
UV
4.2V
ON
SWITCH
SHDN _LOGIC
OV
5.5V
D_B
V_IN
4.7V
BOOST
16
TG
C_B
15
SW
14
C_IN
L
INTV_CC
BG
12
PGND
13
PGOOD
4
C_VCC
V_OUT
M1
M2
+
C_OUT
R_FB1
1.4μA
RUN
+ ^SHDN –
0.72V
UV
–
Σ₊
0.9V
V_FB
6
R_FB2
4V
OV
SGND
0.88V 8
RUN/SS
7
38145 FD
38145fc
9