L4953 Datasheet PDF | STMicroelectronics

STMicroelectronics L4953

The L4953 contains a triple voltage regulator and a power switch. The IC includes a monitoring circuit to warn if a BLOCK DIAGRAM VS 7 LOAD DUMP AND REV BATT PROT POW GND 3 5V, 100mA REGULATOR STAND-BY 5V, 1000mA REGULATOR SWITCHED 11 Multiwatt 15 ORDERING NUMBER: L4953 low voltage or no voltage condition is occuring. The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-by line to allow the µP to store data.

Part No.	L4953
Datasheet	L4953 Download
Manufacturer	STMicroelectronics
Description	MULTIFUNCTION VOLTAGE REGULATOR
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DESCRIPTION

In stand-by output is active as long as possible even when in thermal shutdown or any other fault conditions. STAND-BY 5V 9 OUT 5V EN 5V STCAP EN 10V 1 12 10V, 500mA REGULATOR SWITCHED 10 OUT 10V 2 16V, 3A VOLTAGE CLAMP SWITCHED 4 OUT 16V EN 16V 15 VCAP REF GEN 5 Vref1 LVW THRESHOLD Vref2 Reset THRESHOLD IGNITION THRESHOLD OVERVOLTAGE UNDERVOLTAGE THERMAL PROT RESET IGN INP PROT SIG GND 8 6 D94AU053A 13 LVW/FAULT 14 RESET IGN OUT June 2000 1/6 L4953

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Symbol V SDC VSTR IO Top Tstg Transient Supply Voltage Output Current Operating Temperature Range Storage Temperature Parameter DC Operating Supply Voltage Value –14 to 28 50 internally limited –40 to 85 –55 to 150 °C °C Unit V V PIN CONNECTION (Top view) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 EN 16V RESET LVW/FAULT STCAP STBY5V OUT 8.25V OUT 5V PGND VS IGNOUT IGNINP OUT 16V SGND EN 8.25V EN 5V TAB CONNECTED TO PIN 8 D94AU054B THERMAL DATA Symbol Rth j-case Parameter Thermal Resistance Junction-case Value 2...