Datasheet

SLAVE
BUCK
V+
BR1
SLAVE
BUCK
N
L
MASTER
CTRL
MASTER
BUCK
MASTER
VCC CTRL
MASTER
DIM CTRL
Large Valley-Fill CKT
LM3445
www.ti.com SNVS570L –JANUARY 2009–REVISED MAY 2013
Figure 25. Master/Slave Configuration With One Valley-Fill Circuit
THERMAL SHUTDOWN
Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature
exceeds 165°C. After thermal shutdown occurs, the output switch doesn’t turn on until the junction temperature
drops to approximately 145°C.
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