STMicroelectronics L4957A
The L4957A devices are Ultra Low Drop Output linear regulators with an internal N-channel MOS of 200mΩ particulary suitable for low voltage/low dropout applications. The devices are ideal for use as one of the sup- MULTIPOWER BCD TECHNOLOGY 3 1 Versawatt TO-220 D2PAK ORDERING NUMBERS: L4957AV1.5 L4957AV1.8 L4957AV2.5 L4957AV3.3 L4957AD1.5 L4957AD1.8 L4957AD2.5 L4957AD3.3 plies required by processor, for example they are the cost effective and efficient solution for conversion from 3.3V (rail bus) to 2.5V @ 2.5A or to 1.5V with high current rating.| Part No. | L4957A |
|---|---|
| Datasheet | L4957A Download |
| Manufacturer |  STMicroelectronics |
| Description | UP TO 5A ULDO LINEAR REGULATOR |
| Buy | Stock & Price |
APPLICATIONS
MOTHER BOARDS PROCESSOR I/O & SUPPLIES LOW VOLTAGE MEMORY & CHIP SET SUPPLIES GRAPHIC & SOUND CARDS LOW VOLTAGE LOGIC SUPPLIES POST REGULATOR FOR SMPSDESCRIPTION
Operating with a input voltage from 3V to 14V they are capable to deliver up to 5A. Fast response transient minimise the output capacitor value. A minimum of 22µF assures the stability in all load conditions. The on-chip trimming technique offers a tighter voltage reference tolerance (with ± 2% including line and load variation) beside to ensure a controlled short circuit current. Thermal shutdown provides protection against overload conditions that creates excessive junction temperature. TYPICAL APPLICATION 3V to 14V IN 1 3 OUT VOUT L4957A C1 2 GND D00IN1107A C2 May 2000 This is preliminary information on a new product now in development. Details are subject to change without notice. 1/7 L4957AABSOLUTE MAXIMUM RATINGS
Symbol VIN Ti Tstg Supply Input Voltage Junction Temperature Storage Temperature Parameter Val...
