Linear Technology LT1185
The LT1185 uses a saturation-limited NPN transistor as the pass element. This device gives the linear dropout characteristics of a FET pass element with significantly less die area. The “on resistance” is typically 0.25Ω.| Part No. | LT1185 |
|---|---|
| Datasheet | LT1185 Download |
| Manufacturer |  Linear Technology |
| Description | Low Dropout Regulator |
| Buy | Stock & Price |
FEATURES
● Low Resistance Pass Transistor: 0.25Ω● Dropout Voltage: 0.75V at 3A
● ±1% Reference Voltage
● Accurate Programmable Current Limit
● Shutdown Capability
● Internal Reference Available
● Full Remote Sense
● Low Quiescent Current: 2.5mA
● Good High Frequency Ripple Rejection
● Available in 5-Lead TO-220 and DD Packages DESCRIPTIO The LT®1185 is a 3A low dropout regulator with adjustable current limit and remote sense capability. It can be used as a positive output regulator with floating input or as a standard negative regulator with grounded input. The output voltage range is 2.5V to 25V, with ±1% accuracy on the internal reference voltage. High efficiency is maintained by using special anti-saturation circuitry that adjusts base drive to track load current. The “on resistance” is typically 0.25Ω. Accurate current limit is programmed with a single 1/8W external resistor, with a range of zero to three amperes. A second, fixed internal limit circuit prevents destructive currents if the programming current is accidentally overranged.
