Overview
The ADP2165ACPZ-3.3-R7, produced by Analog Devices Inc., is a high-efficiency, step-down DC-to-DC regulator. This component is part of the ADP2165/ADP2166 series, known for its current mode control architecture and integrated high-side and synchronous rectified FETs. The regulator is designed to operate with an input voltage range of 2.7 V to 5.5 V and can regulate the output voltage down to 0.6 V, with preset options including 3.3 V, which is the case for the ADP2165ACPZ-3.3-R7 model. It is packaged in a 24-lead, 4 mm × 4 mm LFCSP package, making it suitable for applications requiring high power density and small form factor.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Voltage | 3.3 V (fixed) |
| Output Current | Up to 5 A |
| Switching Frequency | Fixed: 620 kHz or 1.2 MHz; Adjustable: 250 kHz to 1.4 MHz |
| Synchronization Range | 250 kHz to 1.4 MHz |
| High-Side On Resistance | 19 mΩ (VBST - VSW = 5 V); 22 mΩ (VBST - VSW = 3.3 V) |
| Low-Side On Resistance | 15 mΩ (VPVIN = 5 V); 16 mΩ (VPVIN = 3.3 V) |
| High-Side Peak Current Limit | 6.5 A to 9.5 A |
| Package Type | 24-lead, 4 mm × 4 mm LFCSP |
Key Features
- High efficiency, current mode control architecture
- Integrated 19 mΩ high-side FET and 15 mΩ synchronous rectified FET
- Programmable switching frequency and soft start
- External compensation and voltage tracking input
- Power-good output and precision enable input
- Accurate current limit and startup into a precharged output
- Bootstrap circuitry for gate drive voltage
- Supported by ADIsimPower™ design tool
Applications
- Point of load regulation
- Communications and networking
- High-end consumer electronics
- Industrial, instrumentation, and healthcare applications
Q & A
- What is the input voltage range of the ADP2165ACPZ-3.3-R7?
The input voltage range is from 2.7 V to 5.5 V. - What is the fixed output voltage of the ADP2165ACPZ-3.3-R7?
The fixed output voltage is 3.3 V. - What is the maximum output current of the ADP2165ACPZ-3.3-R7?
The maximum output current is up to 5 A. - What are the switching frequency options for the ADP2165ACPZ-3.3-R7?
The switching frequency can be fixed at 620 kHz or 1.2 MHz, or adjustable from 250 kHz to 1.4 MHz. - Does the ADP2165ACPZ-3.3-R7 support synchronization with an external clock?
Yes, it supports synchronization with an external clock in the range of 250 kHz to 1.4 MHz. - What is the package type of the ADP2165ACPZ-3.3-R7?
The package type is a 24-lead, 4 mm × 4 mm LFCSP. - What are some key applications of the ADP2165ACPZ-3.3-R7?
Key applications include point of load regulation, communications and networking, high-end consumer electronics, and industrial, instrumentation, and healthcare applications. - Does the ADP2165ACPZ-3.3-R7 have built-in protection features?
Yes, it includes features such as accurate current limit, startup into a precharged output, and power-good output. - Is the ADP2165ACPZ-3.3-R7 supported by any design tools?
Yes, it is supported by the ADIsimPower™ design tool. - What is the on-resistance of the high-side and low-side FETs in the ADP2165ACPZ-3.3-R7?
The high-side FET has an on-resistance of 19 mΩ (VBST - VSW = 5 V) and 22 mΩ (VBST - VSW = 3.3 V), while the low-side FET has an on-resistance of 15 mΩ (VPVIN = 5 V) and 16 mΩ (VPVIN = 3.3 V).
