MFG:STMicroelectronics Category:Integrated Circuits (ICs) Package Cooled:ZIP-15 D/C:08+09+
L4953G, L4953K, L4955 Datasheet download
Category: Integrated Circuits (ICs)
MFG: STMicroelectronics
Package Cooled: ZIP-15
D/C: 08+09+
Description: IC VREG MULTI CAR MULTIWATT15
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PDF/DataSheet Download
Datasheet: L4953G
File Size: 46518 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: L4953K
File Size: 57823 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: L4955
File Size: 145825 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
| Technical/Catalog Information | L4953G |
| Vendor | STMicroelectronics |
| Category | Integrated Circuits (ICs) |
| Package / Case | Multiwatt-15 (Vertical, Bent and Staggered Leads) |
| Packaging | Tube |
| Type | Audio Voltage Regulator |
| Voltage - Input | 11 ~ 18 V |
| Voltage - Output | 5V, 9.2V, 16V |
| Number of Outputs | 3 |
| Applications | Converter, Car Audio System |
| Operating Temperature | -40°C ~ 85°C |
| Drawing Number | * |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | L4953G L4953G |
The L4953G contains a triple voltage regulator and a power switch.
The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occuring.
In stand-by output is active as long as possible even when in thermal shutdown or any other fault conditions.
The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-byline to allow the mP to store data.
| Symbol | Parameter | Value | Unit |
| VSDC | DC Operating Supply Voltage | 6 to 28 | V |
| VSTR | Transient Supply Voltage | 50 | V |
| IO | Output Current | internally limited | |
| TOP | Operating Temperature Range | 40 to 85 | °C |
| TSTG | Storage Temperature | 55 to 150 | °C |
The L4953K contains a triple voltage regulator and a power switch.
The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occuring. In stand-by output is active as long as possible even when in thermal shutdown or any other fault conditions.
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 mP to store data.
|
Symbol |
Parameter |
Value |
Unit |
|
VSDC |
DC Operating Supply Voltage |
14 to 28 |
V |
|
VSTR |
Transient Supply Voltage |
50 |
V |
|
IO |
Output Current |
internally limited |
|
|
Top |
Operating Temperature Range |
40 to 85 |
°C |
|
Tstg |
Storage Temperature |
55 to 150 |
°C |
The L4955 is a family of monolithic ultra very low drop linear regulators designed to supply the most recent microprocessors.
The dropout voltage is only 0.75V (Typ.) at 5A, directly dependent on the output current conditions.
Realized in BCDII technology, it has on board a charge pump to properly drive an N-channel power mos Transistor with 150m of RDSON.
It operates from a 4.5V minimum supply, with a very low quiescent current irrespective of the load; a minimum of 22F output capacitor is required for stability.
The on-chip trimming techniques improve the precision of the available output voltages to ±2%.
Ancillary functions like power good, inhibit with low power consumption, programmable output voltage and current limiting make the flexible heptawatt version usable in applications where power management, stand-by, features, post regulation and adjustable current generators for battery chargers are important.
|
Symbol |
Parameter |
Value |
Unit |
|
VIN |
Supply Input Voltage |
24 |
V |
| ADJ and CL pins PG and INH pins |
-0.3 to 4 0 to VIN |
VV | |
|
PTOT |
Power Dissipation @ Tamb = 50°C Power Dissipation @ Tcase = 90°C |
2 15 |
W W |
|
Tst, Ti |
Storage Temperature |
-40 to +150 |
°C |
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