Overview
The ADP5053ACPZ-R7 from Analog Devices Inc. is a highly integrated power management IC that combines four high-performance buck regulators, a supervisory circuit, a watchdog timer, and a manual reset. This device is packaged in a 48-lead LFCSP, making it suitable for applications requiring high performance and minimal board space. It supports direct connection to high input voltages up to 15.0 V without the need for preregulators. The ADP5053 is designed to provide flexible and efficient power management solutions for a variety of systems.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Input Voltage Range | 4.5 V to 15.0 V | Operating input voltage range |
| Output Current (Channel 1 & 2) | 1.2 A, 2.5 A, or 4 A (programmable) | Maximum output current for Channels 1 and 2 |
| Output Current (Channel 3 & 4) | 1.2 A | Maximum output current for Channels 3 and 4 |
| Switching Frequency | 250 kHz to 1.4 MHz (adjustable) | Range of switching frequencies that can be programmed or synchronized to an external clock |
| Output Accuracy | ±1.5% over full temperature range | Voltage accuracy of the output voltages |
| Package | 48-Lead LFCSP | Package type and lead count |
| Watchdog Timer | Preset timeout period | Generates a reset if the WDI pin is not toggled within the preset timeout period |
Key Features
- High-Performance Buck Regulators: Four buck regulators with integrated high-side and low-side MOSFETs for efficient power conversion.
- Adjustable Output Current: Channels 1 and 2 can be programmed for 1.2 A, 2.5 A, or 4 A output current, and Channels 3 and 4 deliver 1.2 A.
- Flexible Switching Frequency: Switching frequency can be programmed or synchronized to an external clock within the range of 250 kHz to 1.4 MHz.
- Supervisory Circuits: Monitors voltage levels and includes a watchdog timer and manual reset functionality.
- Precision Enable Pins: Each channel has a precision enable pin for easy power-up sequencing or adjustable UVLO threshold.
- Efficiency Optimized Solution: External NFETs can be used in low-side power devices to achieve an efficiency-optimized solution.
Applications
The ADP5053ACPZ-R7 is suitable for a variety of applications requiring high-performance power management, including:
- Industrial control systems
- Medical devices
- Automotive systems
- Communication equipment
- High-density power supplies
Q & A
- What is the input voltage range of the ADP5053ACPZ-R7?
The input voltage range is from 4.5 V to 15.0 V.
- What are the output current options for Channels 1 and 2?
Channels 1 and 2 can be programmed for 1.2 A, 2.5 A, or 4 A output current.
- What is the maximum output current for Channels 3 and 4?
The maximum output current for Channels 3 and 4 is 1.2 A each.
- Can the switching frequency be adjusted?
- What type of package does the ADP5053ACPZ-R7 come in?
The device is packaged in a 48-lead LFCSP.
- Does the ADP5053ACPZ-R7 have supervisory circuits?
- How does the watchdog timer function?
The watchdog timer generates a reset if the WDI pin is not toggled within a preset timeout period.
- Can the output voltage accuracy be relied upon across different temperatures?
- What is the purpose of the precision enable pins on each channel?
The precision enable pins are used for easy power-up sequencing or adjustable UVLO threshold.
- Can external NFETs be used to optimize efficiency?
