Overview
The ADP197ACBZ-01-R7, produced by Analog Devices Inc., is a high-side load switch designed for power management applications. It operates within a voltage range of 1.8 V to 5.5 V and is capable of handling continuous currents up to 3 A at temperatures below 70°C. The device features an internal charge pump that biases the NMOS switch, resulting in an ultralow on-resistance of 12 mΩ across the entire input voltage range. This load switch is particularly useful for power domain isolation and is compatible with various processors and GPIO controllers due to its built-in level shifter for enable logic.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| VIN to GND | −0.3 V to +6.5 V |
| VOUT to GND | −0.3 V to VIN |
| EN to GND | −0.3 V to +6.5 V |
| Continuous Drain Current (TA = 25°C) | ±4 A |
| Continuous Drain Current (TA = 85°C) | ±2.22 A |
| Continuous Diode Current | −50 mA |
| Storage Temperature Range | −65°C to +150°C |
| Operating Junction Temperature Range | −40°C to +105°C |
| On Resistance | 12 mΩ |
| Package Type | 6-Ball WLCSP, 6-Lead LFCSP |
| Package Dimensions (WLCSP) | 1.0 mm × 1.5 mm, 0.5 mm pitch |
| Package Dimensions (LFCSP) | 2.0 mm × 2.0 mm × 0.55 mm, 0.65 mm pitch |
Key Features
- High-side load switch with an internal charge pump for low on-resistance (12 mΩ).
- Operates within a voltage range of 1.8 V to 5.5 V.
- Capable of handling continuous currents up to 3 A at temperatures below 70°C.
- Built-in level shifter for enable logic, compatible with 1.8 V logic signals.
- Overtemperature protection circuitry that disables the output if the junction temperature exceeds 125°C.
- Quick output discharge (QOD) circuit to discharge output capacitance when the output is disabled (ADP197-02).
- Low quiescent current with a nominal 4 MΩ pull-down resistor on the EN pin.
- Space-saving packages: 6-ball WLCSP and 6-lead LFCSP.
- ESD protection structures.
Applications
The ADP197 is suitable for various applications requiring power domain isolation and efficient power management. These include:
- Mobile phones and other portable electronics.
- General power management in embedded systems and consumer electronics.
- Systems requiring low on-resistance and high current handling capabilities.
- Applications where space is a constraint, due to its ultrasmall package options.
Q & A
- What is the operating voltage range of the ADP197?
The ADP197 operates within a voltage range of 1.8 V to 5.5 V.
- What is the maximum continuous current the ADP197 can handle?
The ADP197 can handle continuous currents up to 3 A at temperatures below 70°C.
- What is the on-resistance of the ADP197?
The on-resistance of the ADP197 is 12 mΩ across the entire input voltage range.
- Does the ADP197 have overtemperature protection?
Yes, the ADP197 has overtemperature protection circuitry that disables the output if the junction temperature exceeds 125°C).
- What types of packages are available for the ADP197?
The ADP197 is available in 6-ball WLCSP and 6-lead LFCSP packages).
- Is the ADP197 compatible with low voltage logic signals?
Yes, the ADP197 has a built-in level shifter for enable logic, making it compatible with 1.8 V logic signals).
- What is the purpose of the quick output discharge (QOD) circuit in the ADP197-02?
The QOD circuit in the ADP197-02 discharges the output capacitance when the output is disabled).
- How does the ADP197 manage ESD protection?
The ADP197 includes ESD protection structures, such as Zener diodes).
- What is the recommended output capacitor for the ADP197?
A typical 1 μF capacitor with an ESR of 0.1 Ω or less is recommended for good transient response).
- What are some common applications of the ADP197?
The ADP197 is commonly used in mobile phones, other portable electronics, and general power management in embedded systems and consumer electronics).
