ADP7118ARDZ-R7

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The ADP7118ARDZ-R7, part of the ADI family of linear voltage regulators, is a 3.3V PWM synchronous step-down device with integrated power switch, offering an integrated low quiescent current (LQC) power solution with optimized performance under light and heavy load conditions. The device operates with an input voltage of up to 28V, making it suitable for wide range of automotive power applications. The device is designed to provide accurate current regulation while minimizing losses in both the low load and overload conditions, minimizing power dissipation and extending battery life.

The ADP7118ARDZ-R7 is a synchronous converter, which means it has two power switches, one that is actively switching, and one that is in a low-impedance standby mode. The active switch is the high-side switch which forms the primary current path from the input voltage, and the low-side switch is kept in a low-impedance standby mode to create a low voltage drop during quiescent operating conditions. The synchronous topology offers superior efficiency and higher output current capability due to the reduced on-resistance of the power transistors. It also offers improved transient response and enhances the low-noise performance.

The device features a constant ON/OFF time (TON/TOFF) control that ensures good transient performance at light load, while a voltage mode (VMODE) control guarantees good transient response at heavy loads. The signal generator of the ADP7118ARDZ-R7 can be configured to operate in Forced PWM mode or Linear Mode, depending on the system requirements. In Forced PWM mode, the maximum output ripple voltage can be controlled to provide superior transient response and reduce the output noise, while in Linear Mode the power efficiency is improved. The output voltage can be set in two modes, as either a continuous output voltage or a fixed output voltage that is set by a resistor divider.

The ADP7118ARDZ-R7 also features a wide range of protections including input UVLO, output overvoltage protection (OVP), over-temperature protection (OTP) and auto-restart. In the event of an overload, the device will automatically shut down to prevent system damage. The device also offers a low output voltage operation, which allows it to be used as a switching or buck regulator with low uF output capacitors.

The ADP7118ARDZ-R7 is ideal for automotive applications such as 12V/24V systems, engine control, automotive battery charging, electric windows, alternators, power steering, lighting, and central locking. It is especially well suited for applications demanding high efficiency and low quiescent current under light and heavy loading.

The specific data is subject to PDF, and the above content is for reference