Overview
The ADP2138ACBZ-2.5-R7 is a high-efficiency, low quiescent current, synchronous step-down DC-to-DC converter produced by Analog Devices Inc. This compact regulator is designed to provide a fixed output voltage of 2.5V and is capable of delivering up to 800 mA of load current. The device operates within an input voltage range of 2.3V to 5.5V, making it suitable for a variety of battery-powered and portable electronic devices. The ADP2138 series is known for its high efficiency, low power losses, and robust protection features, including current overload and thermal shutdown protections.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.3 | 5.5 | V | |
| Output Voltage | 2.5 | V | ||
| Output Current | 800 | mA | ||
| Switching Frequency | 2.6 | 3.0 | 3.4 | MHz |
| Output Voltage Accuracy (PWM mode) | -2 | +2 | % | |
| Line Regulation (VIN = 2.3V to 5.5V, PWM mode) | 0.25 | %/V | ||
| Load Regulation (ILOAD = 0 mA to 800 mA) | -0.95 | %/A | ||
| Shutdown Current | 0.2 | 1.0 | μA | |
| Thermal Shutdown Threshold | 150 | °C | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Package Type | 6-WLCSP (1.03x1.50) |
Key Features
- High efficiency, low quiescent current synchronous step-down DC-to-DC converter.
- Fixed output voltage of 2.5V with up to 800 mA load current.
- Input voltage range: 2.3V to 5.5V.
- 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.
- Compact 6-WLCSP package.
- Lead-free and RoHS compliant.
Applications
- PDAs and palmtop computers.
- Wireless handsets.
- Digital audio and portable media players.
- Digital cameras and GPS navigation units.
Q & A
- What is the output voltage of the ADP2138ACBZ-2.5-R7?
The output voltage of the ADP2138ACBZ-2.5-R7 is fixed at 2.5V.
- What is the maximum load current the ADP2138ACBZ-2.5-R7 can handle?
The maximum load current is 800 mA.
- What is the input voltage range for the ADP2138ACBZ-2.5-R7?
The input voltage range is from 2.3V to 5.5V.
- Does the ADP2138ACBZ-2.5-R7 have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold of 150°C.
- What is the switching frequency of the ADP2138ACBZ-2.5-R7?
The switching frequency is between 2.6 MHz and 3.4 MHz.
- Is the ADP2138ACBZ-2.5-R7 lead-free and RoHS compliant?
Yes, it is lead-free and RoHS compliant.
- What are the operating modes of the ADP2138ACBZ-2.5-R7?
The device operates in forced PWM mode or automatic PWM/PSM modes depending on the load current.
- What is the shutdown current of the ADP2138ACBZ-2.5-R7?
The shutdown current is typically 0.2 μA.
- What is the package type of the ADP2138ACBZ-2.5-R7?
The package type is 6-WLCSP (1.03x1.50).
- What design tool supports the ADP2138ACBZ-2.5-R7?
The device is supported by the ADIsimPower™ design tool.
