Overview
The ADP2119ACPZ-R7 from Analog Devices Inc. is a low quiescent current, synchronous, step-down DC-DC regulator. This device utilizes a current mode, constant frequency pulse-width modulation (PWM) control scheme, ensuring excellent stability and transient response. It can also operate in a pulse frequency modulation (PFM) mode under light load conditions to reduce switching frequency and save power. The regulator supports input voltages from 2.3V to 5.5V and provides an adjustable output voltage from 0.6V to 5.5V, with a maximum output current of 2A.
Key Specifications
| Parameter | Value |
|---|---|
| Topology | Synchronous Buck (Step Down) |
| Input Voltage Range | 2.3V to 5.5V |
| Output Voltage Range | 0.6V to 5.5V (Adjustable) |
| Maximum Output Current | 2A |
| Switching Frequency | 1.2MHz (Synchronizable between 1MHz and 2MHz) |
| Output Accuracy | ±1.5% |
| Operating Temperature | -40°C to +125°C |
| Package Type | 10-lead LFCSP-WD |
| Moisture Sensitivity Level (MSL) | 3 (168 hours) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Current mode architecture with precision threshold enable input
- Selectable PWM or PFM mode operation for power efficiency
- Integrated power switches, synchronous rectifiers, and internal compensation
- Undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown
- Integrated soft start to limit inrush current at start-up
- Power-good flag and voltage tracking
- Supported by ADIsimPower™ design tool
- High efficiency for extended battery life and fast transient response for dynamic loads
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 ADP2119ACPZ-R7? The input voltage range is from 2.3V to 5.5V.
- What is the maximum output current of the ADP2119ACPZ-R7? The maximum output current is 2A.
- What are the switching frequency options for the ADP2119ACPZ-R7? The switching frequency is fixed at 1.2MHz but can be synchronized between 1MHz and 2MHz.
- Does the ADP2119ACPZ-R7 support PWM and PFM modes? Yes, it supports both PWM and PFM modes.
- What are the key protection features of the ADP2119ACPZ-R7? It includes undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.
- What is the operating temperature range of the ADP2119ACPZ-R7? The operating temperature range is -40°C to +125°C.
- What package type does the ADP2119ACPZ-R7 use? It uses a 10-lead LFCSP-WD package.
- Is the ADP2119ACPZ-R7 RoHS compliant? Yes, it is lead free and RoHS compliant.
- What design tool supports the ADP2119ACPZ-R7? It is supported by the ADIsimPower™ design tool.
- What are some typical applications of the ADP2119ACPZ-R7? Typical applications include point of load conversion, communications and networking equipment, industrial and instrumentation, consumer electronics, and medical applications.
