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L5958SM

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
L5958 Electrical specifications
Doc ID 17716 Rev 2 13/20
Figure 4. Regulator and power switch diagram
9V
18V
VIN1
DUMP
EN_3P3_1P8
AC00597
4.5V
5V
EN_8P5_5
5V
EN_3P3sw_1P8sw
5V
EN_sw
5V
REG1
8.5V
REG2
5V
18V
VIN2
DUMP
REG3
3.3V
REG4
REG5
REG6
SW
Temperature
Protection
1.8V
3.3V
1.8V
VIN1
Electrical specifications L5958
14/20 Doc ID 17716 Rev 2
3.5 Timing diagrams
Figure 5. Timing chart V
batt
detection
Figure 6. Timing chart 1.8 Vperm/3.3 Vperm and 1.8V sw/3.3 Vsw
Vbatt
En_perm
3.3Vperm
1.8Vperm
3.3Vsw
1.8Vsw
En_sw
3.3Vperm
1.8Vsw
3.3Vsw
1.8Vperm
0.5Vmax
0.5Vmax
0.5Vmax
0.5Vmax
AC00603
L5958 Electrical specifications
Doc ID 17716 Rev 2 15/20
Figure 7. Reset and BU1 backup diagram
Figure 8. BU2 backup diagram
Figure 9. Maximum ESR for stability (valid for all the regulator outputs)
14 V
3 V
RESET
CDELAY
AC00598
Vin1
BU1
t
t
t
t
t
1.80 V
1.76 V
1.74 V
REG6
3.30 V
3.20 V
3.15 V
REG5
14 V
AC00599
Vin1
BU2
t
t
t
1.80 V
REG4
3.30 V
REG3
ESR
[
]
Maximum ESR
Minimum ESR
Stable region
AC00600
1001010.1 100 C [ µF ]
20
15
10
5
50m
0
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

L5958SM

Mfr. #:
Buy L5958SM
Manufacturer:
STMicroelectronics
Description:
LDO Voltage Regulators Multifunction Voltage Regulator
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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