ADP191ACBZ-R7

The ADP191ACBZ-R7 is a high-side load switch designed by Analog Devices Inc. (ADI) for applications requiring power domain isolation and efficient power management. This versatile device offers several key features and benefits, making it suitable for a wide range of electronics applications.

Key Features:

1. Logic-Controlled High-Side Power Switch:
   • The ADP191ACBZ-R7 operates as a high-side load switch, controlled by logic signals. This allows it to connect or disconnect a load to a power supply under digital control.
2. Wide Operating Voltage Range:
   • The device supports an input voltage range from 1.2V to 3.6V, making it compatible with a variety of power sources.
3. Low On-Resistance:
   • The ADP191ACBZ-R7 features a low on-resistance P-channel MOSFET, with a typical RDS(ON) of 80 milliohms at 1.8V. This minimizes power loss during operation and improves efficiency.
4. High Current Capability:
   • The load switch is capable of supporting up to 500mA of continuous current, making it suitable for applications with moderate power requirements.
5. Low Quiescent Current:
   • The device consumes a very low ground current of 2μA (maximum), which is ideal for battery-operated portable equipment to maximize battery life.
6. Ultralow Shutdown Current:
   • In shutdown mode, the ADP191ACBZ-R7 consumes an ultralow current of 1μA (maximum), further reducing power consumption when the load is not in use.
7. Built-In Level Shifter:
   • The built-in level shifter for enable logic allows the device to be compatible with modern processors and GPIO controllers operating at lower voltages, such as 1.2V logic.
8. Turn-On Slew Rate Control:
   • The ADP191ACBZ-R7 controls the turn-on slew rate of the switch to reduce the input inrush current, protecting the power supply and downstream components.
9. Internal Output Discharge Resistor:
   • When the output is disabled, an internal output discharge resistor discharges the output capacitance, ensuring safe operation and preventing damage to sensitive components.
10. Compact Package:
    • The device is packaged in a compact WLCSP-4 package, which is ideal for space-constrained applications.

Applications:

• Portable Equipment:
  • The ADP191ACBZ-R7 is well-suited for portable electronics such as smartphones, tablets, and wearable devices due to its low power consumption and compact size.
• Battery-Powered Devices:
  • The device’s low quiescent and shutdown currents make it ideal for battery-operated equipment, where maximizing battery life is critical.
• Power Management Systems:
  • The load switch can be used in power management systems to provide power domain isolation and efficient control of power delivery to different subsystems.

Summary:

The ADP191ACBZ-R7 is a high-performance, low-power load switch designed for applications requiring efficient power management and power domain isolation. Its compact size, low power consumption, and high current capability make it an excellent