TPS59124 Datasheet, PDF (18/25 Pages) Texas Instruments – Dual Synchronous Step-Down Controller for Low-Voltage Power Rails in Embedded Computing Systems

TPS59124
SLUSA58 – JULY 2010
www.ti.com
Input Voltage
3 V to 28 V
C9
22 µF
R5
R2
R4 _{75 kΩ SGND}
73.2 kΩ
75
kΩ
R1
28.7 kΩ
654321
VO2
1.5 V/10 A
SGND PGND
Power
Good2
C6
10 µF
Q3
IRF7821
L2
1 µH
EN2
C5
0.1 µF
7 PGOOD2
8 EN2
9 VBST2
10 DRVH2
PGOOD1 24
TM
PowerPAD
EN1 23
Power
Good1
EN1
TPS59124RGE
VBST1 22
C2
0.1 µF
DRVH1 21
Q1
IRF7821
C4
2 x 330 µF
V5IN
4.5 V to 5.5 V
Q4
IRF8113
11 LL2
12 ^DRVL2
LL1 20
DRVL1 ₁₉
Q2
IRF8113
PGND
13 14 15 16 17 18
R6
6.8 kΩ
R7 ^R3
3.3Ω ^6.8
kΩ
C7
4.7 μF
C8
1 μF
PGND
PGND
SGND
Figure 25. Typical Application Circuit
C3
L1 ^{10 µF}
1 µH
VO1
1.05 V/10 A
C1
2 x 330 µF
SYMBOL
C1
C4
L1, L2
C3, C6
Q1, Q3
Q2, Q4
Table 2. Typical Application Circuit Components
SPECIFICATION
330 mF, 2.5 V, 15 mΩ
330 mF, 2.5 V, 18 mΩ
1 mH, 2 mΩ
10 mF, 25 V
30 V, 13 mΩ
30 V, 7 mΩ
MANUFACTURER
SANYO
SANYO
TOKO
TDK
International Rectifier
International Rectifier
PART NUMBER
2R5TPE330MF
2R5TPE330MI
FDA1254-1R0M
C3225X5R1E106
IRF7821
IRF8113
18
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