Overview
The ADP2119ACPZ-3.3-R7 is a high-efficiency, synchronous, step-down DC-DC converter produced by Analog Devices Inc. This component is part of the ADP2119/ADP2120 family, which are low quiescent current, synchronous, step-down DC-to-DC regulators. The ADP2119ACPZ-3.3-R7 is housed in a compact 10-lead, 3 mm × 3 mm LFCSP_WD package, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage (Fixed) | 3.3 V (adjustable versions available from 0.6 V to 5.5 V) |
| Output Current | Up to 2 A |
| Switching Frequency | 1.2 MHz (synchronizable between 1 MHz and 2 MHz) |
| Package Type | 10-lead LFCSP_WD (3 mm × 3 mm) |
| Operating Temperature Range | -40°C to 125°C (TJ) |
| Output Accuracy | ±1.5% |
| High-Side On Resistance | 145 mΩ to 190 mΩ (at VIN = 3.3 V, ISW = 200 mA) |
| Low-Side On Resistance | 70 mΩ to 100 mΩ (at VIN = 3.3 V, ISW = 200 mA) |
| Load Regulation | 0.08 %/A (for IO = 0 A to 2 A) |
| Line Regulation | 0.05 %/V (for IO = 1 A) |
Key Features
- High-efficiency synchronous buck converter with integrated high-side switch (P-channel MOSFET) and low-side synchronous rectifier (N-channel MOSFET)
- Adjustable output voltage from 0.6 V to 5.5 V (fixed output versions available)
- Current mode, constant frequency PWM control scheme with PFM mode for light loads
- Synchronizable switching frequency between 1 MHz and 2 MHz
- Internal compensation and soft start
- Thermal shutdown, undervoltage lockout (UVLO), overvoltage protection (OVP), and overcurrent protection (OCP)
- Power-good flag and voltage tracking
- Low quiescent current (< 2 µA when disabled)
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-3.3-R7?
The input voltage range is from 2.3 V to 5.5 V. - What is the maximum output current of the ADP2119ACPZ-3.3-R7?
The maximum output current is up to 2 A. - What is the switching frequency of the ADP2119ACPZ-3.3-R7?
The switching frequency is 1.2 MHz, and it is synchronizable between 1 MHz and 2 MHz. - What package type is used for the ADP2119ACPZ-3.3-R7?
The component is housed in a 10-lead LFCSP_WD package (3 mm × 3 mm). - What are the key protection features of the ADP2119ACPZ-3.3-R7?
The key protection features include thermal shutdown, undervoltage lockout (UVLO), overvoltage protection (OVP), and overcurrent protection (OCP). - Can the ADP2119ACPZ-3.3-R7 operate in PFM mode?
Yes, it can operate in PFM mode at light loads to maintain high efficiency. - What is the operating temperature range of the ADP2119ACPZ-3.3-R7?
The operating temperature range is from -40°C to 125°C (TJ). - Is the ADP2119ACPZ-3.3-R7 RoHS compliant?
Yes, it is RoHS compliant. - What is the typical quiescent current when the device is disabled?
The typical quiescent current is less than 2 µA when the device is disabled. - Does the ADP2119ACPZ-3.3-R7 support voltage tracking?
Yes, it supports voltage tracking.
