Datasheet

VREG
0.1 µF
IN ISET
R
ISET
ISENSE
R
SENSE
GATE
DISCH VSENSE
R
VSENSE_TOP
R
VSENSE_BOTTOM
+
FAULT
PWRGD
FAULT
PWRGD
TIMER
ENABLE
DGND
AGND
R
g1
+
V
O1
V
O2
ENABLE
1 µF ∼ 10 µF
1 µF ∼ 10 µF
12 V IN1
3.3 V IN2
TPS2331
+
V
O3
1 µF ∼ 10 µF
5 V IN3
System Board
R
g3
R
g2
TPS2330
TPS2331
www.ti.com SLVS277G –MARCH 2000–REVISED JULY 2013
THREE-CHANNEL HOT-SWAP APPLICATION
Some applications require hot-swap control of up to three voltage rails, but may not explicitly require the sensing
of the status of the output power on all three of the voltage rails. One such application is a device bay, where
dV/dt control of 3.3 V, 5 V, and 12 V is required. By using TPS2330/TPS2331 to drive all three power rails, as is
shown in Figure 19, TPS2330/31 can deliver three different voltages to three loads while monitoring the status of
one of the loads.
Figure 19. Three-Channel Application
Figure 20 shows ramp-up waveforms of the three output voltages.
Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Links: TPS2330 TPS2331