Overview
The ADP2503ACPZ-R7 is a synchronous average current-mode switching buck-boost regulator produced by Analog Devices Inc. This device is designed to maintain a fixed output voltage from a wide range of input voltages, making it versatile for various power management applications. The ADP2503 series is known for its high efficiency, low quiescent current, and robust thermal performance, making it suitable for battery-powered devices, portable electronics, and other systems requiring reliable and efficient power regulation.
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 (PWM operation, no load) | 490 | 500 | 510 | mV |
| Output Voltage Initial Accuracy | -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 = 3.6 V, EN = 3.6 V, device not switching) | 38 | 50 | µA | |
| Shutdown Current | 0.2 | 1 | µA | |
| N-Channel Switch On-Resistance (VIN = 3.6 V) | 150 | mΩ | ||
| P-Channel Switch On-Resistance (VIN = VOUT = 3.6 V) | 150 | mΩ | ||
| Switch Current Limit | 1.0 | 1.4 | A | |
| Oscillator Frequency | 2.1 | 2.5 | 2.9 | MHz |
| Thermal Shutdown Threshold | 150 | °C |
Key Features
- Synchronous average current-mode switching buck-boost topology for high efficiency and stable output voltage.
- Wide input voltage range from 2.3V to 5.5V and output voltage range from 2.8V to 5.5V.
- Low quiescent current of 38µA to 50µA, reducing power consumption in standby modes.
- High accuracy output voltage with initial accuracy of ±2%.
- Robust thermal performance with a thermal shutdown threshold of 150°C.
- Compact 10-lead LFCSP package (3mm x 3mm) for space-efficient designs.
- Support for forced PWM mode for constant frequency operation.
- SYNC clock input for synchronization with external clocks.
Applications
The ADP2503ACPZ-R7 is suitable for a variety of applications, including:
- Battery-powered devices: The wide input voltage range and low quiescent current make it ideal for battery-powered systems.
- Portable electronics: Its compact package and high efficiency make it a good fit for portable electronics such as smartphones, tablets, and laptops.
- Industrial control systems: The device's robust thermal performance and high accuracy output voltage make it suitable for industrial control systems.
- Automotive systems: The ADP2503ACPZ-R7 can be used in automotive applications due to its wide operating temperature range and high reliability.
Q & A
- What is the input voltage range of the ADP2503ACPZ-R7?
The input voltage range is from 2.3V to 5.5V. - What is the output voltage range of the ADP2503ACPZ-R7?
The output voltage range is from 2.8V to 5.5V. - What is the quiescent current of the ADP2503ACPZ-R7?
The quiescent current is between 38µA and 50µA. - What is the thermal shutdown threshold of the ADP2503ACPZ-R7?
The thermal shutdown threshold is 150°C. - What is the package type of the ADP2503ACPZ-R7?
The package type is a 10-lead LFCSP (3mm x 3mm). - Can the ADP2503ACPZ-R7 be synchronized with an external clock?
Yes, it has a SYNC clock input for synchronization with external clocks. - What is the switch current limit of the ADP2503ACPZ-R7?
The switch current limit is between 1.0A and 1.4A. - Is the ADP2503ACPZ-R7 RoHS compliant?
Yes, the part is RoHS compliant. - What are some typical applications for the ADP2503ACPZ-R7?
Typical applications include battery-powered devices, portable electronics, industrial control systems, and automotive systems. - What is the oscillator frequency range of the ADP2503ACPZ-R7?
The oscillator frequency range is from 2.1MHz to 2.9MHz.
