L5958 STMICROELECTRONICS [STMicroelectronics], L5958 Datasheet - Page 4

• Manufacturer Part Number: L5958
• Description: Multifunction voltage regulator for car radio
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
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Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Flexiwatt27 (SMD and vertical) pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Regulator and power switch diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Timing chart V
Timing chart 1.8 Vperm/3.3 Vperm and 1.8V sw/3.3 Vsw . . . . . . . . . . . . . . . . . . . . . . . . . 14
Reset and BU1 backup diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
BU2 backup diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maximum ESR for stability (valid for all the regulator outputs) . . . . . . . . . . . . . . . . . . . . . . 15
Current limit of the power switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 17
Flexiwatt27 (SMD) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . 18
batt
detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Doc ID 17716 Rev 1
L5958