Overview
The ADP2504ACPZ-R7, produced by Analog Devices Inc., is a synchronous average current-mode switching buck-boost regulator. This device is designed to maintain a fixed output voltage from an input supply that can be greater than, equal to, or less than the output voltage. It operates in buck, boost, or buck-boost modes depending on the input voltage range relative to the output voltage, ensuring efficient regulation and minimal current ripple.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.3 | 5.5 | V | |
| Undervoltage Lockout Threshold (VIN rising) | 2.15 | 2.20 | 2.25 | V |
| Undervoltage Lockout Threshold (VIN falling) | 2.10 | 2.14 | 2.20 | V |
| Output Voltage Range | 2.8 | 5.5 | V | |
| Feedback Voltage (ADP2503/ADP2504 adjustable output) | 490 | 500 | 510 | mV |
| Output Voltage Initial Accuracy (fixed output) | -2% | +2% | ||
| Load and Line Regulation (VIN = 2.3 V to 3.6 V, ILOAD = 0 mA to 500 mA) | 0.5% | |||
| Load and Line Regulation (VIN = 2.3 V to 5.5 V, ILOAD = 0 mA to 500 mA) | 0.6% | |||
| Quiescent Current (VIN) | 38 | 50 | µA | |
| Switching Frequency | 2.5 MHz | |||
| Output Current | 1 A | |||
| Minimum Operating Temperature | -40°C |
Key Features
- Mode of Operation: The ADP2504 operates in buck, boost, or buck-boost modes depending on the input voltage relative to the output voltage, ensuring efficient voltage regulation.
- Switching Frequency: The device operates at a fixed 2.5 MHz PWM frequency for heavy and medium loads and transitions to power save mode for light loads.
- Synchronization: The ADP2504 can be synchronized to an external clock signal between 2.2 MHz and 2.8 MHz.
- High Accuracy: The output voltage initial accuracy is ±2% for fixed output versions.
- Low Quiescent Current: The device has a low quiescent current of 38 µA to 50 µA, making it power-efficient.
- Compact Package: Available in a 10-Lead LFCSP (3mm x 3mm) package, making it suitable for space-constrained applications.
Applications
- Portable Electronics: Ideal for battery-powered devices such as smartphones, tablets, and laptops due to its efficient voltage regulation and low quiescent current.
- Industrial Systems: Suitable for industrial control systems, medical devices, and other applications requiring stable and efficient power supply.
- Automotive Systems: Can be used in automotive systems where input voltage can vary widely, such as in battery management and power distribution modules.
- Consumer Electronics: Applicable in various consumer electronics requiring compact and efficient power management solutions.
Q & A
- What is the input voltage range of the ADP2504?
The input voltage range of the ADP2504 is from 2.3 V to 5.5 V.
- What are the different modes of operation for the ADP2504?
The ADP2504 operates in buck, boost, or buck-boost modes depending on the input voltage relative to the output voltage.
- What is the switching frequency of the ADP2504?
The switching frequency of the ADP2504 is 2.5 MHz.
- Can the ADP2504 be synchronized to an external clock signal?
Yes, the ADP2504 can be synchronized to an external clock signal between 2.2 MHz and 2.8 MHz.
- What is the output current capability of the ADP2504?
The ADP2504 can deliver up to 1 A of output current.
- What is the minimum operating temperature of the ADP2504?
The minimum operating temperature of the ADP2504 is -40°C.
- What is the package type and size of the ADP2504?
The ADP2504 is available in a 10-Lead LFCSP (3mm x 3mm) package.
- What is the quiescent current of the ADP2504?
The quiescent current of the ADP2504 is between 38 µA and 50 µA.
- What is the output voltage initial accuracy of the ADP2504?
The output voltage initial accuracy of the ADP2504 is ±2% for fixed output versions.
- In which applications is the ADP2504 commonly used?
The ADP2504 is commonly used in portable electronics, industrial systems, automotive systems, and consumer electronics.
