Overview
The ADP2503ACPZ-3.3-R7 is a highly efficient, synchronous average current-mode switching buck-boost regulator produced by Analog Devices Inc. This component is designed to maintain a fixed output voltage from a wide range of input voltages, making it versatile for various applications. It operates with an input voltage range of 2.3V to 5.5V and provides a fixed output voltage of 3.3V with a maximum current of 0.6A. The device features internal power switches and synchronous rectifiers to minimize the external device count, enhancing its efficiency and stability.
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 | |
| Output Voltage (Fixed) | 3.3 | V | ||
| Output Current | 0.6 | A | ||
| Quiescent Current (VIN) | 38 | 50 | µA | |
| Switch Current Limit | 1.0 | 1.4 | A | |
| Oscillator Frequency | 2.1 | 2.9 | MHz | |
| Operating Temperature | -40 | 125 | °C | |
| Package Type | 10-Lead LFCSP |
Key Features
- High efficiency, synchronous average current-mode switching buck-boost regulator.
- Internal power switches and synchronous rectifiers to minimize external device count.
- Optional power save mode to reduce switching frequency under light load conditions.
- Logic control input sync for fixed frequency PWM operation under all load conditions.
- Internal compensation, soft start, and switch current limit.
- Enable/shutdown logic input, overtemperature protection, short-circuit protection, and undervoltage lockout protection.
- Compact PCB footprint with 10-lead lead frame chip scale package (LFCSP-WD).
Applications
- Wireless handsets.
- Digital cameras and portable audio players.
- Miniature hard disk power supplies.
- USB powered devices.
- Other portable and low-power applications requiring efficient voltage regulation.
Q & A
- What is the input voltage range of the ADP2503ACPZ-3.3-R7?
The input voltage range is 2.3V to 5.5V. - What is the fixed output voltage of the ADP2503ACPZ-3.3-R7?
The fixed output voltage is 3.3V. - What is the maximum output current of the ADP2503ACPZ-3.3-R7?
The maximum output current is 0.6A. - What is the quiescent current of the ADP2503ACPZ-3.3-R7?
The quiescent current is typically 38µA. - What is the oscillator frequency of the ADP2503ACPZ-3.3-R7?
The oscillator frequency is between 2.1MHz and 2.9MHz. - Does the ADP2503ACPZ-3.3-R7 have overtemperature protection?
Yes, it has overtemperature protection. - What is the operating temperature range of the ADP2503ACPZ-3.3-R7?
The operating temperature range is -40°C to +125°C. - What package type does the ADP2503ACPZ-3.3-R7 use?
The package type is a 10-lead lead frame chip scale package (LFCSP-WD). - Does the ADP2503ACPZ-3.3-R7 support fixed frequency PWM operation?
Yes, it supports fixed frequency PWM operation through the sync input. - What are some common applications of the ADP2503ACPZ-3.3-R7?
Common applications include wireless handsets, digital cameras, portable audio players, and USB powered devices.
