Overview
The ADP2139ACBZ-0.8-R7 is a high-efficiency, synchronous step-down DC-DC converter produced by Analog Devices Inc. This compact device is designed to operate with a wide input voltage range of 2.3V to 5.5V and provides a fixed output voltage of 0.8V with a maximum output current of 800mA. It features a fixed 3MHz switching frequency and advanced control techniques to maintain high efficiency across the entire load range. The ADP2139ACBZ-0.8-R7 is particularly suited for space-constrained designs due to its compact 6-UFBGA, WLCSP package.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 2.3 | - | 5.5 | V |
| Output Voltage (VOUT) | 0.8 | - | - | V |
| Output Current (IOUT) | - | 800 | - | mA |
| Switching Frequency | - | 3 | - | MHz |
| Operating Temperature Range | -40 | - | 125 | °C |
| Thermal Shutdown Threshold | - | - | 150 | °C |
| Thermal Shutdown Hysteresis | - | - | 20 | °C |
| Shutdown Current | - | 0.2 | - | μA |
| Package Type | - | - | - | 6-UFBGA, WLCSP |
Key Features
- High efficiency synchronous step-down DC-DC converter
- Fixed 3MHz switching frequency
- Internal power switch and synchronous rectifier for minimal external part count and high efficiency
- Internal soft start and compensation
- Current overload and thermal shutdown protections
- Ultralow shutdown current: 0.2 μA (typical)
- Forced PWM and automatic PWM/PSM modes
- Internal discharge switch (ADP2139)
- Compact 6-UFBGA, WLCSP package for space-constrained designs
- Synchronous rectification for improved efficiency
- Supported by ADIsimPower™ design tool
Applications
- Portable electronics
- Wearable devices
- Internet of Things (IoT) applications
- Embedded systems
- Automotive electronics
- PDAs and palmtop computers
- Wireless handsets
- Digital audio and portable media players
- Digital cameras and GPS navigation units
Q & A
- What is the input voltage range of the ADP2139ACBZ-0.8-R7?
The input voltage range is from 2.3V to 5.5V.
- What is the fixed output voltage of the ADP2139ACBZ-0.8-R7?
The fixed output voltage is 0.8V.
- What is the maximum output current of the ADP2139ACBZ-0.8-R7?
The maximum output current is 800mA.
- What is the switching frequency of the ADP2139ACBZ-0.8-R7?
The switching frequency is fixed at 3MHz.
- What are the operating modes of the ADP2139ACBZ-0.8-R7?
The device operates in forced PWM mode or automatic PWM/PSM modes depending on the load current level.
- What is the package type of the ADP2139ACBZ-0.8-R7?
The package type is 6-UFBGA, WLCSP.
- Does the ADP2139ACBZ-0.8-R7 have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold of 150°C and hysteresis of 20°C).
- What is the shutdown current of the ADP2139ACBZ-0.8-R7?
The shutdown current is typically 0.2 μA).
- Is the ADP2139ACBZ-0.8-R7 RoHS compliant?
Yes, the device is RoHS compliant).
- What design tool supports the ADP2139ACBZ-0.8-R7?
The device is supported by ADIsimPower™ design tool).
