LTC3807_15 Datasheet, PDF (11/32 Pages) Linear Technology – Low IQ, Synchronous Step-Down Controller with 24V Output Voltage Capability

FUNCTIONAL DIAGRAM
PGOOD
0.88V
V_FB
0.72V
FREQ
20µA
VCO
CLK2
CLK1
PFD
PLLIN/MODE
I_LIM
V_IN
EXTV_CC
100k
SYNC
DET
CURRENT
LIMIT
+
4.7V ^–
5.1V
LDO
EN
5.1V
LDO
EN
SGND
INTV_CC
LTC3807
BOOST
INTV_CC V_IN
D_B
DROP
OUT
TOP
TG
DET
BOT
TOP ON
SW
SQ
RQ
SHDN
INTV_CC
SWITCH
LOGIC _BOT
BG
PGND
C_B
D
C_IN
C_OUT
0.425V ⁺
–
SLEEP
ICMP
–+
2.7V
0.65V
+ ^IR
–
2mV
SENSE⁺
SENSE^–
SLOPE COMP
V_FB
EA 0.80V
TRACK/SS
OV
0.88V
ITH
7µA
SHDN
RST FOLDBACK
2(V_FB)
10µA
TRACK/SS
11V
SHDN
RUN
L
R_SENSE
R_B
R_A
C_C
C_C2 R_C
C_SS
3807 FD
V_OUT
For more information www.linear.com/LTC3807
3807f
11