Overview
The ADP2164ACPZ-R7 is a high-efficiency, synchronous step-down DC-to-DC regulator produced by Analog Devices Inc. This regulator is designed to provide a continuous output current of up to 4 A and is available in a compact 4 mm x 4 mm LFCSP package. It operates with an input voltage range of 2.7 V to 6.5 V and can regulate the output voltage from 0.6 V to the input voltage (VIN), with preset output voltage options of 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, and 1.0 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Continuous Output Current | 4 | A |
| Input Voltage Range | 2.7 to 6.5 | V |
| Output Voltage Range | 0.6 to VIN | V |
| Preset Output Voltage Options | 3.3, 2.5, 1.8, 1.5, 1.2, 1.0 | V |
| Integrated FET On-Resistance | 43 mΩ (P-channel), 29 mΩ (N-channel) | mΩ |
| Output Accuracy | ±1.5% | % |
| Switching Frequency | Fixed: 600 kHz or 1.2 MHz, Adjustable: 500 kHz to 1.4 MHz | kHz / MHz |
| Synchronization Range | 500 kHz to 1.4 MHz | kHz / MHz |
| Package Type | 16-lead LFCSP | - |
Key Features
- High efficiency synchronous step-down DC-to-DC regulator
- Integrated soft start to limit inrush current at startup
- Undervoltage lockout (UVLO), overvoltage protection (OVP), and overcurrent protection (OCP)
- Thermal shutdown for overheating protection
- 100% duty cycle operation for low dropout voltage at 4 A output current
- Synchronization input (SYNC) to reduce ripple and eliminate beat frequencies
- Compact 4 mm x 4 mm LFCSP package
Applications
- Powering high-speed analog-to-digital converters (ADCs) and other high-performance analog circuits
- Phased array radar systems and other military and aerospace applications
- Communications receivers and electronic test and measurement equipment
- Systems requiring multiple voltage domains, such as those with GSPS ADCs
Q & A
- What is the maximum continuous output current of the ADP2164?
The maximum continuous output current of the ADP2164 is 4 A.
- What is the input voltage range of the ADP2164?
The input voltage range of the ADP2164 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 available for the ADP2164 are 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 ADP2164?
The ADP2164 has a fixed switching frequency of 600 kHz or 1.2 MHz and an adjustable frequency range from 500 kHz to 1.4 MHz.
- Does the ADP2164 support synchronization?
Yes, the ADP2164 has a synchronization input (SYNC) to synchronize multiple ICs out of phase, reducing ripple and eliminating beat frequencies.
- What protection features does the ADP2164 include?
The ADP2164 includes undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
- What is the package type of the ADP2164?
The ADP2164 is available in a 16-lead LFCSP package.
- What are some typical applications of the ADP2164?
The ADP2164 is typically used in powering high-speed ADCs, phased array radar systems, communications receivers, and other high-performance analog circuits.
- How does the ADP2164 manage inrush current at startup?
The ADP2164 includes an integrated soft start feature to limit inrush current at startup.
- What is the significance of the 100% duty cycle operation in the ADP2164?
The 100% duty cycle operation allows for low dropout voltage at 4 A output current.
