Overview
The ADP2139ACBZ-3.0-R7 is a high-efficiency, low quiescent current, synchronous step-down DC-to-DC converter produced by Analog Devices Inc. This compact device is designed to operate within a wide input voltage range of 2.3V to 5.5V and can regulate an output voltage down to 0.8V. It is particularly suited for applications requiring low power consumption and high efficiency, such as portable electronic devices.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.3 | 5.5 | V | |
| Output Voltage Accuracy (PWM mode) | -2% | +2% | % | |
| Output Current | 800 | mA | ||
| Switching Frequency | 2.6 | 3.0 | 3.4 | MHz |
| Shutdown Current | 0.2 | 1.0 | μA | |
| Thermal Shutdown Threshold | 150 | °C | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Package Type | 6-WLCSP |
Key Features
- High efficiency, low quiescent current synchronous step-down DC-to-DC converter.
- Internal synchronous rectifier, compensation, and soft start.
- Current overload and thermal shutdown protections.
- Ultralow shutdown current: 0.2 μA (typical).
- Forced PWM and automatic PWM/PSM modes.
- Supported by ADIsimPower™ design tool.
- Internal discharge switch (ADP2139) to discharge the output capacitor when the EN pin goes low or when the device enters shutdown.
- Compact 6-WLCSP package.
Applications
- 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-3.0-R7?
The input voltage range is 2.3V to 5.5V.
- What is the maximum output current of the ADP2139ACBZ-3.0-R7?
The maximum output current is 800 mA.
- What is the switching frequency of the ADP2139ACBZ-3.0-R7?
The switching frequency is typically 3 MHz, ranging from 2.6 MHz to 3.4 MHz.
- Does the ADP2139ACBZ-3.0-R7 have thermal shutdown protection?
- What is the shutdown current of the ADP2139ACBZ-3.0-R7?
The shutdown current is typically 0.2 μA.
- What package type is used for the ADP2139ACBZ-3.0-R7?
The device is packaged in a 6-WLCSP (Wafer Level Chip Scale Package).
- Does the ADP2139ACBZ-3.0-R7 support both PWM and PSM modes?
- What is the purpose of the internal discharge switch in the ADP2139ACBZ-3.0-R7?
The internal discharge switch discharges the output capacitor when the EN pin goes low or when the device enters shutdown.
- Is the ADP2139ACBZ-3.0-R7 RoHS compliant?
- What design tool supports the ADP2139ACBZ-3.0-R7?
The device is supported by the ADIsimPower™ design tool.
