Overview
The ADP2108ACBZ-1.8-R7, manufactured by Analog Devices Inc., is a high-efficiency, low quiescent current step-down DC-to-DC converter. This device is designed for use in portable electronics and other applications where compact size and high efficiency are crucial. The ADP2108 operates with an input voltage range of 2.3 V to 5.5 V and can regulate an output voltage down to 1.0 V. It features a fixed frequency of 3 MHz and a current mode PWM control architecture, ensuring excellent stability and transient response.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | 1.8 V (for ADP2108ACBZ-1.8-R7) |
| Output Current | 600 mA |
| Switching Frequency | 3 MHz |
| Quiescent Current | 18 μA |
| Peak Efficiency | 95% |
| Package Type | 5-ball WLCSP or 5-lead TSOT |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
Key Features
- High efficiency with a peak efficiency of 95%
- Fixed frequency operation at 3 MHz
- Low quiescent current of 18 μA
- Current mode architecture for fast load and line transient response
- 100% duty cycle low dropout mode
- Internal synchronous rectifier and internal compensation
- Internal soft start and current overload protection
- Thermal shutdown protection
- Shutdown supply current of 0.2 μA
- Supported by ADIsimPower™ design tool
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 ADP2108ACBZ-1.8-R7?
The input voltage range is 2.3 V to 5.5 V.
- What is the maximum output current of the ADP2108ACBZ-1.8-R7?
The maximum output current is 600 mA.
- What is the switching frequency of the ADP2108ACBZ-1.8-R7?
The switching frequency is 3 MHz.
- What is the quiescent current of the ADP2108ACBZ-1.8-R7?
The quiescent current is 18 μA.
- Does the ADP2108ACBZ-1.8-R7 have built-in protection features?
Yes, it includes current overload protection, thermal shutdown protection, and undervoltage lockout.
- What are the package options for the ADP2108ACBZ-1.8-R7?
The device is available in 5-ball WLCSP and 5-lead TSOT packages.
- What is the operating temperature range of the ADP2108ACBZ-1.8-R7?
The operating temperature range is -40°C to +125°C.
- Does the ADP2108ACBZ-1.8-R7 support any design tools?
Yes, it is supported by the ADIsimPower™ design tool.
- What are some typical applications for the ADP2108ACBZ-1.8-R7?
Typical applications include PDAs, wireless handsets, digital audio players, digital cameras, and GPS navigation units.
- How does the ADP2108ACBZ-1.8-R7 manage power efficiency at light loads?
The device smoothly transitions to a power save mode at light loads, which reduces regulation power losses and improves conversion efficiency.
