Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator

The radiation hardened ISL72991RH is a low dropout adjustable negative regulator with an output voltage range of -2.25V to -26V. The device features a 1A output current capability, an adjustable current limit pin (ILIM) and a shutdown pin (SD) for easy on/off control.

Features

• Electrically Screened to DSCC SMD # 5962-02503

• QML Qualified per MIL-PRF-38535 Requirements

• Radiation Environment

- Total Dose (Max) . . . . . . . . . . . . . . . . . . . . 300krad(SI)

- Latch-Up Immune

• Line Regulation . . . . . . . . . . . . . . . . . . . . . . ±25mV (max)

• Load Regulation . . . . . . . . . . . . ±12mV (typ); ±15mV (max)

• Output Voltage Range . . . . . . . . . . . . . . . . -2.25V to -26V

• Dropout Voltage (100mA). . . . . . . . 0.2V (typ); 0.3V (max)

• Dropout Voltage (1A) . . . . . . . . . . . . . . . . . . . . . .1V (max)

• Minimum Load Current. . . . . . . . . . . . . . . . . . . . . . .3.0mA

• TTL Input-Level Shutdown (SD); Low = On

Applications

• Switching Power Supplies

• DC/DC Converters

• Motor Controllers