| Part Number | LM3940 |
| Manufacturer | Texas Instruments |
| Title | 1-A Low-Dropout Regulator |
| Description | The LM3940 is a 1-A low-dropout regulator designed to provide 3.3 V from a 5-V supply. The LM3940 is ideally suited for systems which contain both... |
| Features |
•1 Input Voltage Range: 4.5 V to 5.5 V • Output Voltage Specified over Temperature • Excellent Load Regulation • Specified 1-A Output Current • Requires only One External Component • Built-in Protection against Excess Temperature • Short-Circuit Protected 2 Applications • Laptop and Desktop Computer... |
| File Size | 1.95MB |
| Datasheet |
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LM394 : The LM194 and LM394 are junction isolated ultra wellmatched monolithic NPN transistor pairs with an order of magnitude improvement in matching over conventional transistor pairs This was accomplished by advanced linear processing and a unique new device structure Electrical characteristics of these devices such as drift versus initial offset voltage noise and the exponential relationship of base-emitter voltage to collector current closely approach those of a theoretical transistor Extrinsic emitter and base resistances are much lower than presently available pairs either monolithic or discrete giving extremely low noise and theoretical operation over a wide current range Most parameters are.
LM3940 : The LM3940 is a 1A low dropout regulator designed to provide 3.3V from a 5V supply. The LM3940 is ideally suited for systems which contain both 5V and 3.3V logic, with prime power provided from a 5V bus. Because the LM3940 is a true low dropout regulator, it can hold its 3.3V output in regulation with input voltages as low as 4.5V. The T0-220 package of the LM3940 means that in most applications the full 1A of load current can be delivered without using an additional heatsink. The surface mount TO-263 package uses minimum board space, and gives excellent power dissipation capability when soldered to a copper plane on the PC board. Features n n n n n n Output voltage specified over temperatu.
LM3940 : The Bay Linear LM3940 is a 1.25A high accuracy, low dropout voltage regulator with only 40mV at light loads and 350mV(Typ.)@ 1.0A) and low quiescent current of 240µA typical. The LM3940 is designed for low voltage a application that requires lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage applications where require a lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator for switching supplies applications. The LM3940 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip t.