L5957 STMicroelectronics, L5957 Datasheet - Page 4

• Manufacturer Part Number: L5957
• Description: IC VREG MULTIFUNCT MULTIWATT15
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of L5957

• Applications: Converter, Car Audio System
• Voltage - Input: 6 ~ 18 V
• Number Of Outputs: 4
• Voltage - Output: 3.3V, 5V, 8.5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 15-Multiwatt
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

List of figures
List of figures
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Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pins connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maximum ESR for stability valid for all the regulators outputs . . . . . . . . . . . . . . . . . . . . . . 10
Timing diagram of regulators and power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Backup and reset diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Hold and thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ignition buffer diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Protection of the power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Short circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PowerSO20 (slug up) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 13
Multiwatt15 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 14
Doc ID 14442 Rev 2
L5957