Datasheet

TPS65023, TPS65023B
www.ti.com SLVS670J –JUNE 2006– REVISED SEPTEMBER 2011
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
Input voltage range step-down converters
V
CC
(VINDCDC1, VINDCDC2, VINDCDC3); pins need to be tied to the same 2.5 6 V
voltage rail
Output voltage range for VDCDC1 step-down converter
(1)
0.6 VINDCDC1
V
O
Output voltage range for VDCDC2 step-down converter
(1)
0.6 VINDCDC2 V
Output voltage range for VDCDC3 step-down converter
(1)
0.6 VINDCDC3
V
I
Input voltage range for LDOs (VINLDO1, VINLDO2) 1.5 6.5 V
V
O
Output voltage range for LDOs (VLDO1, VLDO2) 1 VINLDO1-2 V
I
O(DCDC1)
Output current at L1 1700 mA
Inductor at L1
(2)
1.5 2.2 μH
C
I(DCDC1)
Input capacitor at VINDCDC1
(2)
10 μF
C
O(DCDC1)
Output capacitor at VDCDC1
(2)
10 22 μF
I
O(DCDC2)
Output current at L2 1200 mA
Inductor at L2
(2)
1.5 2.2 μH
C
I(DCDC2)
Input capacitor at VINDCDC2
(2)
10 μF
C
O(DCDC2)
Output capacitor at VDCDC2
(2)
10 22 μF
I
O(DCDC3)
Output current at L3 1000 mA
Inductor at L3
(2)
1.5 2.2 μH
C
I(DCDC3)
Input capacitor at VINDCDC3
(2)
10 μF
C
O(DCDC3)
Output capacitor at VDCDC3
(2)
10 22 μF
C
I(VCC)
Input capacitor at VCC
(2)
1 μF
C
i(VINLDO)
Input capacitor at VINLDO
(2)
1 μF
C
O(VLDO1-2)
Output capacitor at VLDO1, VLDO2
(2)
2.2 μF
I
O(VLDO1-2)
Output current at VLDO1, VLDO2 200 mA
C
O(VRTC)
Output capacitor at VRTC
(2)
4.7 μF
T
A
Operating ambient temperature –40 85 °C
T
J
Operating junction temperature –40 125 °C
Resistor from VINDCDC3, VINDCDC2, VINDCDC1 to VCC used for filtering
(3)
1 10 Ω
(1) When using an external resistor divider at DEFDCDC3, DEFDCDC2, DEFDCDC1
(2) See Applications Information section for more information.
(3) Up to 3 mA can flow into V
CC
when all 3 converters are running in PWM. This resistor causes the UVLO threshold to be shifted
accordingly.
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Product Folder Link(s) :TPS65023 TPS65023B