Overview
The ADP2302ARDZ-5.0-R7 is a fixed frequency, current-mode control, step-down DC-to-DC regulator produced by Analog Devices Inc. This regulator is part of the ADP2302/ADP2303 series, which features an integrated power MOSFET. It is designed to operate over a wide input voltage range of 3.0 V to 20 V, making it suitable for various applications. The ADP2302ARDZ-5.0-R7 specifically provides a fixed output voltage of 5.0 V and can handle a maximum load current of 2 A. The regulator's 700 kHz operating frequency allows for the use of small inductors and ceramic capacitors, enabling a compact design. It also includes integrated soft start circuitry to prevent large inrush currents at power-up and features such as undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.0 to 20 | V |
| Output Voltage | 5.0 | V |
| Maximum Load Current | 2 | A |
| Switching Frequency | 700 | kHz |
| Output Voltage Accuracy | ±1.5% | |
| Package Type | SOIC-8 with exposed paddle | |
| Junction Temperature Range | -40°C to +125°C | |
| Undervoltage Lockout Threshold | 2.7 to 2.9 V (rising), 2.2 to 2.4 V (falling) | V |
| Peak Current Limit | 2.7 to 4.4 A | A |
Key Features
- Wide input voltage range: 3.0 V to 20 V
- Fixed output voltage of 5.0 V with ±1.5% accuracy over temperature
- Maximum load current of 2 A for ADP2302 and 3 A for ADP2303
- 700 kHz switching frequency allowing for compact design with small inductors and ceramic capacitors
- Current-mode control architecture for fast and stable line and load transient performance
- Integrated soft start circuitry to prevent large inrush currents at power-up
- Power-good signal for sequencing devices with enable input
- Precision enable threshold voltage for easy sequencing from other input/output supplies
- Protection features: undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP)
Applications
- Intermediate power rail conversion
- DC-to-DC point of load applications
- Communications and networking equipment
- Industrial and instrumentation applications
- Healthcare and medical devices
- Consumer electronics
Q & A
- Q: What is the input voltage range of the ADP2302ARDZ-5.0-R7?
A: The input voltage range is from 3.0 V to 20 V.
- Q: What is the maximum load current for the ADP2302ARDZ-5.0-R7?
A: The maximum load current is 2 A.
- Q: What is the switching frequency of the ADP2302ARDZ-5.0-R7?
A: The switching frequency is 700 kHz.
- Q: What protection features are included in the ADP2302ARDZ-5.0-R7?
A: The regulator includes undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP).
- Q: What is the package type of the ADP2302ARDZ-5.0-R7?
A: The package type is SOIC-8 with an exposed paddle.
- Q: What is the junction temperature range for the ADP2302ARDZ-5.0-R7?
A: The junction temperature range is -40°C to +125°C.
- Q: How does the ADP2302ARDZ-5.0-R7 handle inrush current at power-up?
A: The regulator has integrated soft start circuitry to prevent large inrush currents at power-up.
- Q: Can the ADP2302ARDZ-5.0-R7 be used in high-temperature environments?
A: Yes, it is rated for a junction temperature range of -40°C to +125°C.
- Q: What is the typical bootstrap voltage generated by the ADP2302ARDZ-5.0-R7 for the gate drive circuit?
A: The regulator generates a typical 5.0 V bootstrap voltage for the gate drive circuit.
- Q: Where can I find detailed information about the ADP2302ARDZ-5.0-R7, such as application notes and factory information?
A: You can find detailed information on the Analog Devices website or through authorized distributors like Ovaga.
