| Characteristic | Symbol | Test Conditions | Min | Typ. | Max | Unit |
| Operating Voltage | Vcc | | | | 26 | V |
| Current Consumption without Load | lcc | VS = 8.8 t0 26V | | 1.5 | 1.8 | mA |
| Activation Voltage | VON | | 12.2 | | 1 3 | V |
| Activation Voltage Range | VONR | RA=1KQ | 8 | | 1 0 | V |
| Sustaining Voltage | VSUS | | 8 | | 8.8 | V |
| Differential Resistance in Off Condition | RD(OFF) | | 6.4 | | | KW |
| Output Voltage Swing | VO(P-P) | | | Vcc-3 | | V |
| Short Circuit Current | ISc | VS= 26V | | 35 | | mA |
| | | | | | |
Typical applications for the LT1581 include 3.3V t0 2.5V conversion with a 5V control supply, 5V t0 4.2V conver- sion with a 12V control supply or 5V t0 3.6V conversion with a 12V control supply. It is easy to obtain dropout voltages of less than 0.4V at 4A along with excellent static and dynamic specifications. The LT1 581 is capable oflOA of output current with a maximum dropout of 0.7V. The LT1 581 has fast transient response that allows it to handle the large current changes associated with today's micro- processors.The device isfully protected against ove rcurrent and ove rtemperature conditions. Both fixed voltage (2.5V) and adjustable output versions are available. The device is available in a 7-lead T0-220 package.
