Datasheet

V
BAT
TPS43330-Q1
or
TPS43332-Q1
5V to 30V
VBAT
DS
GC1
GC2
CBA
GA1
PHA
GA2
PGNDA
SA1
SA2
FBA
COMPA
SSA
PGA
ENA
ENB
COMPC
ENC
SYNC
DLYAB
RT
AGND
PGB
SSB
COMPB
FBB
SB2
SB1
PGNDB
GB2
PHB
GB1
CBB
VREG
DIV
EXTSUP
VIN
3.9µH
0.1µF
0.1µF
4.7µF
10nF
10nF
1nF
5kΩ5kΩ
100µF
C
OUTB
22µH
0.045Ω
V — 3.3V, 16.5W
BuckB
10µH
10µF
470µF
C
OUT1
150µF
C
OUTA
V — 5V, 15W
BuckA
0.015Ω
8.2kΩ
18nF
220pF
39kΩ
1nF
20pF
36kΩ
1nF
47pF
16kΩ
34kΩ
16kΩ
84kΩ
TOP-SW1
BOT-SW1
BOT-SW2
TOP-SW2
TOP-SW3
BOT-SW3
C
330µF
IN
1kΩ
L1
L2
L3
D1
0.03Ω
BOOST — 10V, 20W
1.5kΩ
470pF
TPS43330-Q1
TPS43332-Q1
SLVSA82E –MARCH 2011–REVISED APRIL 2013 www.ti.com
Table 8. Application Example 3
PARAMETER V
BuckA
V
BuckB
BOOST
V
IN
= 5 V to 30 V V
IN
= 6 V to 30 V V
BAT
= 5 V (cranking pulse
Input voltage
12 V - typical 12 V - typical input) to 30 V
Output voltage, V
OUTx
5 V 2.5 V 10 V
Maximum output current, I
OUTx
3 A 1 A 2 A
Load-step output tolerance, ∆V
OUT
+ ∆V
OUT(Ripple)
±0.2 V ±0.12 V ±0.5 V
Current output load step, ∆I
OUTx
0.1 A to 3 A 0.1 A to 1 A 0.1 A to 2 A
Converter switching frequency, f
SW
400 kHz 400 kHz 200 kHz
Figure 30. Simplified Application Schematic, Example 3
Table 9. Application Example 3 – Component Proposals
Name Component Proposal Value
L1 MSS1278T-392NL (Coilcraft) 3.9 µH
L2 MSS1278T-822ML (Coilcraft) 8.2 µH
L3 MSS1278T-223ML (Coilcraft) 22 µH
D1 SK103 (Micro Commercial Components)
TOP_SW3 IRF7416 (International Rectifier)
TOP_SW1, TOP_SW2 Si4840DY-T1-E3 (Vishay)
BOT_SW1, BOT_SW2 Si4840DY-T1-E3 (Vishay)
BOT_SW3 IRFR3504ZTRPBF (International Rectifier)
C
OUT1
EEVFK1V471Q (Panasonic) 470 µF
C
OUTA
ECASD91A157M010K00 (Murata) 150 µF
C
OUTB
ECASD40J107M015K00 (Murata) 100 µF
C
IN
EEEFK1V331P (Panasonic) 330 µF
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