Overview
The ADP2120ACPZ-3.3-R7 is a synchronous step-down DC-DC regulator produced by Analog Devices Inc. This component is part of the ADP2119/ADP2120 series, known for its high efficiency and compact design. The ADP2120ACPZ-3.3-R7 operates with input voltages ranging from 2.3 V to 5.5 V and can regulate the output voltage down to 0.6 V, with this specific model fixed at 3.3 V output. It features a current mode, constant frequency pulse-width modulation (PWM) control scheme and can also operate in pulse frequency modulation (PFM) mode under light load conditions to enhance power efficiency.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | ADP2120ACPZ-3.3-R7 |
| Manufacturer | Analog Devices Inc. |
| Package Type | 10-lead, 3 mm × 3 mm LFCSP_WD |
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | Fixed at 3.3 V |
| Output Current | Up to 1.25 A |
| Switching Frequency | 1.2 MHz (fixed), synchronizable between 1 MHz and 2 MHz |
| Output Accuracy | ±1.5% |
| Load Regulation | 0.08 %/A |
| Line Regulation | 0.05 %/V |
| High-Side On Resistance | 145 mΩ to 190 mΩ |
| Low-Side On Resistance | 70 mΩ to 100 mΩ |
| Operating Temperature Range | -40°C to 125°C |
Key Features
- High efficiency due to integrated high-side switch (P-channel MOSFET) and low-side synchronous rectifier (N-channel MOSFET).
- Current mode, constant frequency PWM control scheme with the option to operate in PFM mode under light load conditions.
- Synchronizable switching frequency between 1 MHz and 2 MHz.
- Integrated soft start, UVLO, OVP, OCP, and thermal shutdown for robust protection.
- Power-good flag and precision threshold enable input.
- Compact 10-lead, 3 mm × 3 mm LFCSP_WD package.
- Supported by ADIsimPower™ design tool for easy design and simulation).
Applications
- Point of load conversion).
- Communications and networking equipment).
- Industrial and instrumentation applications).
- Consumer electronics).
- Medical applications).
Q & A
- What is the input voltage range of the ADP2120ACPZ-3.3-R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the fixed output voltage of the ADP2120ACPZ-3.3-R7?
The fixed output voltage is 3.3 V.
- What is the maximum output current of the ADP2120ACPZ-3.3-R7?
The maximum output current is up to 1.25 A.
- What is the switching frequency of the ADP2120ACPZ-3.3-R7?
The switching frequency is 1.2 MHz (fixed), and it can be synchronized between 1 MHz and 2 MHz.
- Does the ADP2120ACPZ-3.3-R7 support PFM mode?
Yes, it can operate in PFM mode under light load conditions to enhance power efficiency.
- What are the key protection features of the ADP2120ACPZ-3.3-R7?
The key protection features include UVLO, OVP, OCP, and thermal shutdown.
- What is the package type of the ADP2120ACPZ-3.3-R7?
The package type is a 10-lead, 3 mm × 3 mm LFCSP_WD package.
- What are some typical applications of the ADP2120ACPZ-3.3-R7?
Typical applications include point of load conversion, communications and networking equipment, industrial and instrumentation, consumer electronics, and medical applications.
- Is the ADP2120ACPZ-3.3-R7 supported by any design tools?
Yes, it is supported by ADIsimPower™ design tool.
- What is the operating temperature range of the ADP2120ACPZ-3.3-R7?
The operating temperature range is -40°C to 125°C.
