Overview
The ADP2164ACPZ-1.8-R7 is a high-efficiency, synchronous step-down DC-to-DC regulator produced by Analog Devices Inc. This regulator is designed to operate with an input voltage range of 2.7 V to 6.5 V and can regulate the output voltage down to 0.6 V, with preset options including 1.8 V, among others. It is packaged in a compact 4 mm x 4 mm LFCSP (Lead Frame Chip Scale Package) and is capable of delivering a continuous output current of up to 4 A.
The ADP2164 features a fixed-frequency, peak current mode PWM control architecture, which allows for high efficiency and the use of small external components. The regulator also includes integrated soft start, overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown, ensuring reliable and safe operation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 6.5 V |
| Output Voltage Range | 0.6 V to VIN (preset options: 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V) |
| Output Current | Up to 4 A |
| Switching Frequency | Fixed: 600 kHz or 1.2 MHz; Adjustable: 500 kHz to 1.4 MHz |
| Integrated FET On-Resistance | 43 mΩ (P-channel), 29 mΩ (N-channel) |
| Output Voltage Accuracy | ±1.5% |
| Package Type | 16-WQFN Exposed Pad, CSP |
| Package Size | 4 mm x 4 mm |
Key Features
- High efficiency synchronous step-down DC-to-DC regulator
- Integrated low on-resistance P-channel and N-channel MOSFETs
- Fixed-frequency, peak current mode PWM control architecture
- Adjustable switching frequency from 500 kHz to 1.4 MHz
- Synchronizable operation to reduce ripple and eliminate beat frequencies
- Integrated soft start to limit inrush current at startup
- Overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown
- Undervoltage lockout (UVLO) for safe operation
- 100% duty cycle operation for low dropout voltage at high output current
Applications
The ADP2164ACPZ-1.8-R7 is suitable for a variety of applications requiring high-efficiency DC-to-DC conversion, including:
- Portable electronics such as smartphones, tablets, and laptops
- Industrial control systems and automation equipment
- Medical devices requiring reliable and efficient power supply
- Aerospace and defense systems where high reliability is critical
- Server and data center power supplies where efficiency and compactness are essential
Q & A
- What is the input voltage range of the ADP2164ACPZ-1.8-R7?
The input voltage range is from 2.7 V to 6.5 V.
- What are the preset output voltage options available for the ADP2164?
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 maximum output current of the ADP2164ACPZ-1.8-R7?
The maximum output current is up to 4 A.
- What are the switching frequency options for the ADP2164?
The switching frequency can be fixed at 600 kHz or 1.2 MHz, or adjustable from 500 kHz to 1.4 MHz.
- Does the ADP2164 have integrated protection features?
Yes, it includes overvoltage protection (OVP), overcurrent protection (OCP), thermal shutdown, and undervoltage lockout (UVLO).
- What is the package type and size of the ADP2164ACPZ-1.8-R7?
The package type is 16-WQFN Exposed Pad, CSP, and the size is 4 mm x 4 mm.
- Can the ADP2164 be synchronized with other regulators?
Yes, it has a SYNC input that allows multiple ICs to synchronize out of phase to reduce ripple and eliminate beat frequencies.
- What is the purpose of the integrated soft start feature in the ADP2164?
The integrated soft start feature limits the inrush current at startup.
- What is the output voltage accuracy of the ADP2164?
The output voltage accuracy is ±1.5%.
- Is the ADP2164 suitable for high-efficiency applications?
Yes, it is designed for high-efficiency synchronous step-down DC-to-DC conversion.
