Datasheet

032-004
Outputvoltage=1.3V,VBAT =3.6V
90
80
70
60
50
40
30
20
10
00
0.0001 0.001 0.01 0.1 1
Iload(A)
Effciency(%)
TPS65950
SWCS032E–OCTOBER 2008–REVISED JANUARY 2011 www.ti.com
Table 4-3. VDD1 dc-dc Regulator Characteristics (continued)
Parameter Comments Min Typ Max Unit
Value 0.7 1 1.3 μH
DCR 0.1 Ω
External coil
Saturation current for TPS65950A2 1.8 A
Saturation current for TPS65950A3 2.1
Value 8 10 12 μF
External capacitor
(1)
Equivalent series resistance (ESR) at 0 20 mΩ
switching frequency
See Table 2-2 for how to connect the VDD1/2 dc-dc converter when it is not used.
Figure 4-2 shows the efficiency of the VDD1 dc-dc regulator in active and sleep modes.
Figure 4-2. VDD1 dc-dc Regulator Efficiency
4.1.1.2 External Components and Application Schematic
Figure 4-3 is an application schematic with the external components on the VDD1 dc-dc regulator.
36 Power Module Copyright © 2008–2011, Texas Instruments Incorporated
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