The document describes a 2.5 A step down switching regulator for automotive applications, which is qualified according to AEC-Q100 requirements. It features an operating input voltage range of 4 V to 36 V, a 3.3 V / (±2%) reference voltage, an adjustable output voltage from 1.235 V to 35 V, low dropout operation with 100% duty cycle, 250 kHz fixed frequency, voltage feedforward, zero load current operation, etc.
The A5974D is a monolithic power switching regulator designed specifically for automotive applications, including cold crank conditions. It features a minimum switch current limit of 3.1 A, allowing it to deliver up to 2.5 A of DC output current. The device operates with an internal p-channel DMOS transistor and includes features such as voltage feedforward, zero load current operation, and synchronization capabilities.
| Output current | 2.5 A |
|---|---|
| Operating input voltage | 4 V to 36 V |
| Output voltage range | 1.235 V to 35 V |
| Switching frequency | 250 kHz |
| Operating junction temperature | -40 to 150 °C |
The device has a minimum input voltage of 4 V, making it suitable for automotive cold crank conditions.
The regulator has a minimum switch current limit of 3.1 A, enabling it to deliver up to 2.5 A of DC output current.
Yes, the device includes a synchronization feature for master/slave operation.