Overview
The ADP2120ACPZ-1.8-R7 is a low-power, synchronous step-down DC-DC converter produced by Analog Devices Inc. This component is designed for precise voltage regulation and is particularly suited for applications requiring high efficiency and compact design. The ADP2120 series is available in a 10-lead, 3 mm × 3 mm LFCSP_WD package, making it ideal for space-constrained designs. The device supports input voltages from 2.3 V to 5.5 V and can output voltages from 0.6 V up to the input voltage, with the specific model ADP2120ACPZ-1.8-R7 providing a fixed output voltage of 1.8 V.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADP2120ACPZ-1.8-R7 |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | 1.8 V |
| Output Current | 1.25 A |
| Switching Frequency | 1.2 MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature Range | -40°C to 125°C (TJ) |
| Package Type | 10-LFCSP-WD (3x3 mm) |
| Mounting Type | Surface Mount |
Key Features
- Low quiescent current, reducing power consumption in standby mode.
- Integrated 145 mΩ and 70 mΩ MOSFETs for high efficiency.
- ±1.5% output accuracy for precise voltage regulation.
- Fixed switching frequency of 1.2 MHz, with synchronization capability between 1 MHz and 2 MHz.
- Selectable PWM or PFM mode operation to optimize efficiency under different load conditions.
- Current mode architecture for excellent stability and transient response.
- Power-good flag, voltage tracking, and internal soft start for robust operation.
- Protection features include undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
Applications
- Point of load conversion in various electronic systems.
- Communications and networking equipment.
- Industrial and instrumentation applications.
- Consumer electronics requiring efficient power management.
- Medical devices where precise voltage regulation is critical.
Q & A
- What is the input voltage range of the ADP2120ACPZ-1.8-R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the fixed output voltage of the ADP2120ACPZ-1.8-R7?
The fixed output voltage is 1.8 V.
- What is the maximum output current of the ADP2120ACPZ-1.8-R7?
The maximum output current is 1.25 A.
- What is the switching frequency of the ADP2120ACPZ-1.8-R7?
The switching frequency is 1.2 MHz.
- Does the ADP2120ACPZ-1.8-R7 have built-in protection features?
Yes, it includes UVLO, OVP, OCP, and thermal shutdown.
- What is the package type of the ADP2120ACPZ-1.8-R7?
The package type is 10-LFCSP-WD (3x3 mm).
- What are the operating temperature limits of the ADP2120ACPZ-1.8-R7?
The operating temperature range is from -40°C to 125°C (TJ).
- Can the ADP2120ACPZ-1.8-R7 operate in both PWM and PFM modes?
Yes, it can operate in both PWM and PFM modes.
- Is the ADP2120ACPZ-1.8-R7 RoHS compliant?
Yes, it is RoHS compliant.
- What are some typical applications of the ADP2120ACPZ-1.8-R7?
Typical applications include point of load conversion, communications and networking equipment, industrial and instrumentation, consumer electronics, and medical devices.
