Overview
The ADP2120ACPZ-1.5-R7 is a low quiescent current, synchronous step-down DC-to-DC regulator produced by Analog Devices Inc. This component is part of the ADP2119/ADP2120 family and is packaged in a compact 3 mm × 3 mm LFCSP_WD package. It is designed for high efficiency and stability, making it suitable for a variety of applications requiring precise voltage regulation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | Adjustable (0.6 V to VIN), Fixed options: 3.3 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V |
| Output Current | 1.25 A |
| Switching Frequency | 1.2 MHz (fixed), Synchronizable between 1 MHz and 2 MHz |
| Package Type | 10-lead LFCSP_WD |
| Package Size | 3 mm × 3 mm |
| Operating Mode | PWM (medium-to-full loads), PFM (light loads) |
| Quiescent Current | < 2 µA (disabled) |
| Output Accuracy | ±1.5% |
| Protection Features | UVLO, OVP, OCP, Thermal Shutdown |
Key Features
- High efficiency due to integrated high-side switch and low-side synchronous rectifier
- Current mode architecture with peak current mode PWM control
- Selectable PWM or PFM mode operation for improved efficiency at light loads
- Integrated soft start and internal compensation
- Power-good flag and voltage tracking
- Low quiescent current and small package size for space-saving designs
- Supported by ADIsimPower™ design tool
Applications
- Point of load conversion
- Communications and networking equipment
- Industrial and instrumentation
- Consumer electronics
- Medical applications
Q & A
- What is the input voltage range of the ADP2120ACPZ-1.5-R7? The input voltage range is from 2.3 V to 5.5 V.
- What are the available output voltage options for this regulator? The output voltage can be adjusted from 0.6 V to the input voltage, and fixed 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 ADP2120ACPZ-1.5-R7? The maximum output current is 1.25 A.
- What is the switching frequency of this regulator? The switching frequency is fixed at 1.2 MHz but can be synchronized between 1 MHz and 2 MHz.
- What are the protection features of the ADP2120ACPZ-1.5-R7? The protection features include undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
- How does the regulator operate under light load conditions? Under light load conditions, the regulator can be configured to operate in pulse frequency modulation (PFM) mode to reduce switching frequency and save power.
- What is the quiescent current when the regulator is disabled? The quiescent current is less than 2 µA when the regulator is disabled.
- Is the ADP2120ACPZ-1.5-R7 RoHS compliant? Yes, the ADP2120ACPZ-1.5-R7 is RoHS compliant.
- What design tool supports the ADP2120ACPZ-1.5-R7? The ADP2120ACPZ-1.5-R7 is supported by the ADIsimPower™ design tool.
- What are some typical applications of the ADP2120ACPZ-1.5-R7? Typical applications include point of load conversion, communications and networking equipment, industrial and instrumentation, consumer electronics, and medical applications.
