LTC3411_15 Datasheet, PDF (7/24 Pages) Linear Technology – 1.25A, 4MHz, Synchronous Step-Down DC/DC Converter

BLOCK DIAGRAM
SV_IN
7
SGND
I_TH
3
10
LTC3411
PV_IN
6
V_FB 9
0.8V _VOLTAGE
REFERENCE
+
–
0.74V +
ERROR
AMPLIFIER
V_B
–
B
–
I_TH
LIMIT
BCLAMP
+
BURST
COMPARATOR
HYSTERESIS = 80mV
OSCILLATOR
PMOS CURRENT
COMPARATOR
+
–
SLOPE
COMPENSATION
PGOOD 8
+
0.86V –
1
SHDN/R_T
LOGIC
+
–
NMOS
COMPARATOR
–
+
REVERSE
COMPARATOR
2
SYNC/MODE
4 SW
5 PGND
3411 BD
3411fb
7