Overview
The ADP2139ACBZ-1.2-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 provide a regulated output voltage from an input voltage range of 2.3V to 5.5V. It features a fixed output voltage of 1.2V and can deliver up to 800mA of output current. The ADP2139ACBZ-1.2-R7 is housed in a 6-ball Wafer Level Chip Scale Package (WLCSP), making it ideal for space-constrained applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.3 | 5.5 | V | |
| Output Voltage | 1.2 | 1.2 | V | |
| Output Current | 800 | mA | ||
| Switching Frequency | 2.6 | 3.0 | 3.4 | MHz |
| Operating Temperature Range | -40 | 85 | °C | |
| Thermal Shutdown Threshold | 150 | °C | ||
| Shutdown Current | 0.2 | 1.0 | μA | |
| Package Type | 6-Ball 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 only)
- Fixed frequency, current-mode PWM control architecture
- Power save mode at light loads to lower regulation power losses
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-1.2-R7?
The input voltage range is from 2.3V to 5.5V.
- What is the fixed output voltage of the ADP2139ACBZ-1.2-R7?
The fixed output voltage is 1.2V.
- What is the maximum output current of the ADP2139ACBZ-1.2-R7?
The maximum output current is 800mA.
- What is the switching frequency of the ADP2139ACBZ-1.2-R7?
The switching frequency is between 2.6 MHz and 3.4 MHz.
- What is the operating temperature range of the ADP2139ACBZ-1.2-R7?
The operating temperature range is from -40°C to 85°C.
- Does the ADP2139ACBZ-1.2-R7 have thermal shutdown protection?
- What is the typical shutdown current of the ADP2139ACBZ-1.2-R7?
The typical shutdown current is 0.2 μA.
- What package type is the ADP2139ACBZ-1.2-R7 available in?
- Does the ADP2139ACBZ-1.2-R7 support both PWM and PSM modes?
- Is the ADP2139ACBZ-1.2-R7 supported by any design tools?
