LTC3784_15 Datasheet, PDF (10/38 Pages) Linear Technology – 60V PolyPhase Synchronous Boost Controller

LTC3784
Block Diagram
CLKOUT
PHASMD
INTV_CC
FREQ
20µA
CLK2
VCO _CLK1
PFD
OVMODE
PLLIN/
5M
MODE
100k
ILIM
VBIAS
EXTV_CC
5.4V
LDO
EN
+
4.8V –
SYNC
DET
CURRENT
LIMIT
5.4V
LDO
EN
INTV_CC
SHDN
–+
3.8V
SGND
DUPLICATE FOR SECOND CONTROLLER CHANNEL
S
RQ
SHDN
SWITCHING
LOGIC
AND
CHARGE
PUMP
BOOST
TG
SW
INTV_CC
BG
INTV_CC
D_B
C_B
0.425V +
–
SLEEP
PGND
I_{CMP – +}
2.8V
0.7V
SLOPE COMP
+
+–
I_REV
–
2mV
SENSE ^–
SENSE⁺
L
R_SENSE
SENS LO
2.3V
VFB
EA
1.2V
SS
V_OUT
C_OUT
V_IN
C_IN
0.5µA/
4.5µA
11V
SHDN
RUN
SENS
LO
OV
10µA 1.32V ⁺
–
VFB
SS
+
1.08V –
C_SS
1.32V
ITH
PGOOD
3784 BD
C_C
C_C2
R_C
10
For more information www.linear.com/LTC3784
3784fb