STMicroelectronics L4943
The L4943 contains a triple voltage regulator and a high side driver. The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the BLOCK DIAGRAM Multiwatt 15 ORDERING NUMBER: L4943 5V Stand-by line to allow the µP to store data.| Part No. | L4943 |
|---|---|
| Datasheet | L4943 Download |
| Manufacturer |  STMicroelectronics |
| Description | MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO |
| Buy | Stock & Price |
DESCRIPTION
In stand-by the output is active as long as possible even when in thermal shutdown or under any other fault conditions. FILTER CAP 11 GEN REF VMEM (3÷7)V 0.5A 10 ST CAP 12 VMEM VMEM_feed VADJ1 VADJ1_feed VADJ2 VADJ2_feed EN1 1 VADJ1 (3÷11)V 0.5A 7 13 EN2 2 VADJ2 (3÷11)V 0.5A 9 14 VS 5 HSD LOAD DUMP 4 HSD 6 P-GND 3 S-GND 8 TAB D97AU668B December 2000 1/6 L4943ABSOLUTE MAXIMUM RATINGS
Symbol VS IO Vin RESR Ptot Top Tstg Parameter DC Operating Supply Voltage Transient Supply Overvoltage (50ms) Voltage Regulator Output Current Input Voltage (EN1, EN2) Output Capacitor Series Eq. Resistance Power Dissipation (Tcase = 85°C) Operating Temperature Range Storage Temperature Ranges Value -0.6 to 30 50 Internally limited 0 to 6 0.2 to 10 33 -40 to 85 -55 to 150 Unit V V V Ω W °C °C PIN CONNECTION (t.b.d.) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 FILTER CAP V2 feed V1 feed ST CAP VMEM VMEM_feed V2 TAB V1 P-GND VS HSD S-GND EN2 EN1 TAB CONNECTED TO PIN 8 D97AU674A THERMAL DATA Symbol RTh j-...
