Overview
The ADP2139ACBZ-1.5-R7 is a compact, high-efficiency step-down DC-to-DC converter produced by Analog Devices, Inc. This integrated circuit (IC) is designed to provide a fixed output voltage of 1.5V with a maximum load current of 800mA. It operates within an input voltage range of 2.3V to 5.5V, making it suitable for various power sources including single lithium or lithium polymer cells, multiple alkaline or NiMH cells, and standard power sources like USB and PCMCIA.
The ADP2139ACBZ-1.5-R7 features a synchronous rectifier and an internal power switch, minimizing the need for external components and enhancing efficiency. The device also includes internal soft start, undervoltage lockout, and a power save mode to improve light load efficiency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | ADP2139ACBZ-1.5-R7 | |
| Manufacturer | ADI (Analog Devices, Inc.) | |
| Description | IC REG BCK 1.5V 0.8A SYNC 6WLCSP | |
| Output Voltage (Fixed) | 1.5V | V |
| Input Voltage Range | 2.3V to 5.5V | V |
| Maximum Load Current | 800mA | A |
| Topology | Buck | |
| Synchronous Rectifier | Yes | |
| Package Type | 6-WLCSP (1.03x1.50) | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Switching Frequency | 3MHz | Hz |
| Mounting Type | Surface Mount | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High Efficiency: The ADP2139ACBZ-1.5-R7 operates with high efficiency due to its internal power switch and synchronous rectifier, minimizing the need for external components.
- Power Save Mode: The device shifts to a power save mode at light loads to lower regulation power losses, improving efficiency.
- Internal Soft Start: Reduces inrush current during startup.
- Undervoltage Lockout: Prevents deep battery discharge by disconnecting the input from the output when the input voltage falls below a predefined threshold.
- Compact Package: Available in a 6-WLCSP (1.03x1.50) package, making it suitable for space-constrained applications.
- Wide Input Voltage Range: Operates on input voltages from 2.3V to 5.5V, supporting various power sources.
- Fixed Frequency Operation: Operates at a fixed frequency of 3MHz in PWM mode.
Applications
- Portable Electronics: Suitable for powering components in smartphones, tablets, and other portable devices.
- Industrial Control Systems: Can be used in industrial control systems where efficient power conversion is critical.
- Medical Devices: Applicable in medical devices requiring reliable and efficient power supply.
- Aerospace and Defense: Used in various aerospace and defense applications due to its high reliability and efficiency.
- Consumer Electronics: Ideal for use in consumer electronics such as set-top boxes, gaming consoles, and other multimedia devices.
Q & A
- What is the output voltage of the ADP2139ACBZ-1.5-R7?
The output voltage is fixed at 1.5V.
- What is the maximum load current of the ADP2139ACBZ-1.5-R7?
The maximum load current is 800mA.
- What is the input voltage range of the ADP2139ACBZ-1.5-R7?
The input voltage range is from 2.3V to 5.5V.
- Does the ADP2139ACBZ-1.5-R7 have a synchronous rectifier?
Yes, it includes an internal synchronous rectifier.
- What is the switching frequency of the ADP2139ACBZ-1.5-R7 in PWM mode?
The switching frequency is 3MHz.
- What is the operating temperature range of the ADP2139ACBZ-1.5-R7?
The operating temperature range is -40°C to 85°C.
- Is the ADP2139ACBZ-1.5-R7 RoHS compliant?
Yes, it is lead-free and RoHS compliant.
- What is the package type of the ADP2139ACBZ-1.5-R7?
The package type is 6-WLCSP (1.03x1.50).
- Does the ADP2139ACBZ-1.5-R7 have an internal soft start feature?
Yes, it includes internal soft start to reduce inrush current during startup.
- What is the moisture sensitivity level (MSL) of the ADP2139ACBZ-1.5-R7?
The MSL is 1 (Unlimited).
