LTC3788-1 Datasheet, PDF (10/28 Pages) Linear Technology – 2-Phase, Dual Output Synchronous Boost Controller

LTC3788-1
BLOCK DIAGRAM
1.32V ⁺
–
VFB1
+
1.08V –
FREQ
20μA
PGOOD1
CLK2
VCO _CLK1
PFD
PLLIN/
MODE
100k
SYNC
DET
VBIAS
EXTV_CC
5.4V
LDO
EN
+
4.8V _–
5.4V
LDO
EN
INTV_CC
SHDN
–+
3.8V
SGND
DUPLICATE FOR SECOND CONTROLLER CHANNEL
S
Q
R
SHDN
BOOST
TG
SWITCHING
LOGIC
AND
CHARGE
PUMP
SW
INTV_CC
BG
0.425V +
–
SLEEP
INTV_CC
D_B
C_B
PGND
V_OUT
C_OUT
–+
2.8V
0.7V
SLOPE COMP
+
+– –
2mV
SENSE ^–
SENSE⁺
SENS LO
VFB
2.5V
EA
1.2V
SS
L
R_SENSE
V_IN
C_IN
0.5μA/
4.5μA
11V
10μA
OV
1.32V
ITH
C_C
C_C2
R_C
SHDN
RUN
SENS
LO
SS
C_SS
37881 BD
37881f
10