Datasheet

9
LTC1629/LTC1629-PG
FU CTIO AL DIAGRA
UU
W
SWITCH
LOGIC
0.80V
4.7V
5V
V
IN
V
IN
A1
CLK2
CLK1
+
–
+
–
–
+
V
REF
PHASE LOGIC
INTERNAL
SUPPLY
PHASMD
±2µA
EXTV
CC
INTV
CC
SGND
+
5V
LDO
REG
SW
SHDN
TOP
BOOST
TG
C
B
C
IN
D
B
PGND
BOT
BG
INTV
CC
INTV
CC
V
IN
+
V
OUT
1629 FBD
R1
EAIN
DROP
OUT
DET
RUN
SOFT
START
BOT FCB
FORCE BOT
S
R
Q
Q
OSCILLATOR
PLLLPF
50k
EA
0.86V
0.80V
OV
1.2µA
6V
R2
–
+
R
C
4(V
FB
)
RST
SHDN
RUN/SS
I
TH
C
C
C
SS
4(V
FB
)
0.86V
SLOPE
COMP
+
–
SENSE
–
SENSE
+
INTV
CC
30k
45k
2.4V
45k
30k
I1
AMPMD
DIFFOUT
0V POSITION
PHASE DET
PLLIN
CLKOUT
DUPLICATE FOR SECOND
CONTROLLER CHANNEL
LTC1629
ONLY
+–
R
SENSE
L
C
OUT
+
V
OS
+
V
OS
–
F
IN
R
LP
C
LP
0.74V
0.86V
LTC1629-PG PGOOD CONNECTION
THE AMPMD PIN ON
THE LTC1629 IS
REPLACED BY A PGOOD
PIN IN THE LTC1629-PG
A1
+
–
DIFFOUT
V
OS
+
V
OS
–
+
–
+
–
EAIN
PGOOD