Overview
The ADP2108ACBZ-2.3-R7 is a high-efficiency, low quiescent current step-down DC-to-DC converter manufactured by Analog Devices Inc. This device is designed to operate with input voltages ranging from 2.3 V to 5.5 V, making it suitable for a variety of power sources including single lithium or lithium polymer cells, multiple alkaline or NiMH cells, PCMCIA, USB, and more. The converter is available in two different packages: 5-ball WLCSP and 5-lead TSOT, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | Down to 1.0 V (adjustable) |
| Maximum Load Current | 600 mA |
| Switching Frequency | 3 MHz (fixed frequency) |
| Quiescent Current | Typical 18 μA |
| Efficiency | Peak efficiency: 95% |
| Package | 5-ball WLCSP, 5-lead TSOT |
| Shutdown Supply Current | 0.2 μA |
| Protection Features | Current overload protection, thermal shutdown protection, undervoltage lockout |
Key Features
- High efficiency with a peak efficiency of 95%
- Fixed 3 MHz switching frequency for high efficiency and small component size
- Low quiescent current of 18 μA typical
- 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 limit protection
- Thermal shutdown and undervoltage lockout protection
- 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-2.3-R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum load current of the ADP2108ACBZ-2.3-R7?
The maximum load current is 600 mA.
- What is the switching frequency of the ADP2108ACBZ-2.3-R7?
The switching frequency is fixed at 3 MHz.
- What are the protection features of the ADP2108ACBZ-2.3-R7?
The device includes current overload protection, thermal shutdown protection, and undervoltage lockout.
- What are the typical applications of the ADP2108ACBZ-2.3-R7?
Typical applications include PDAs, wireless handsets, digital audio and portable media players, and digital cameras.
- What is the quiescent current of the ADP2108ACBZ-2.3-R7?
The typical quiescent current is 18 μA.
- What is the efficiency of the ADP2108ACBZ-2.3-R7?
The peak efficiency is 95%.
- What packages are available for the ADP2108ACBZ-2.3-R7?
The device is available in 5-ball WLCSP and 5-lead TSOT packages.
- Does the ADP2108ACBZ-2.3-R7 have internal compensation and soft start?
- Is the ADP2108ACBZ-2.3-R7 supported by any design tools?
