Overview
The ADP2166ACPZ-3.3-R7 is a high-efficiency, current-mode control, step-down DC-to-DC regulator produced by Analog Devices Inc. This regulator is part of the ADP2165/ADP2166 family, known for its flexibility and high power density. It integrates a 19 mΩ high-side FET and a 15 mΩ synchronous rectified FET, making it suitable for a variety of applications requiring efficient power management.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Voltage | 0.6 V to 4.95 V (preset options: 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V) |
| 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 | 7.5 A to 10.5 A |
| Low-Side Negative Current Limit | 2.4 A |
| Minimum Off Time | 100 ns |
| Minimum On Time | 100 ns |
| Package | 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 high power density
- Support for ADIsimPower™ design tool
- Bootstrap circuitry for gate drive voltage
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 ADP2166ACPZ-3.3-R7? The input voltage range is from 2.7 V to 5.5 V.
- What are the preset output voltage options for this regulator? The preset output voltage options include 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V.
- What is the switching frequency range of the ADP2166ACPZ-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.
- Can the ADP2166ACPZ-3.3-R7 be synchronized with an external clock? Yes, it can be synchronized with an external clock in the range of 250 kHz to 1.4 MHz.
- What is the on-resistance of the high-side and low-side FETs? 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).
- What is the peak current limit for the high-side FET? The peak current limit for the high-side FET is 7.5 A to 10.5 A.
- What is the minimum off and on time for the switching regulator? The minimum off and on time is 100 ns each.
- In what package is the ADP2166ACPZ-3.3-R7 available? It is available in a 24-lead, 4 mm × 4 mm LFCSP package.
- What design tool supports the ADP2166ACPZ-3.3-R7? It is supported by the ADIsimPower™ design tool.
- What are some of the key applications for the ADP2166ACPZ-3.3-R7? Key applications include point of load regulation, communications and networking, high-end consumer electronics, and industrial, instrumentation, and healthcare applications.
