Overview
The ADP2108AUJZ-3.3-R7 is a high-efficiency, low quiescent current step-down DC-to-DC converter manufactured by Analog Devices Inc. This device is designed to provide a regulated output voltage from an input voltage range of 2.3 V to 5.5 V. It is particularly suited for applications requiring compact size and high efficiency, such as portable electronics and battery-powered devices.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | 1.0 V to 3.3 V (depending on the specific part number) |
| Maximum Load Current | 600 mA |
| Fixed Frequency Operation | 3 MHz |
| Typical Quiescent Current | 18 μA |
| Peak Efficiency | 95% |
| Package Type | SOT-23-5, TSOT-23-5 |
| 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%
- Low quiescent current of 18 μA
- Fixed frequency operation at 3 MHz
- Current mode architecture for fast load and line transient response
- Internal synchronous rectifier and internal compensation
- Internal soft start and 100% duty cycle low dropout mode
- Compact package options (SOT-23-5, TSOT-23-5)
- 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 ADP2108AUJZ-3.3-R7?
The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum load current of the ADP2108AUJZ-3.3-R7?
The maximum load current is 600 mA.
- What is the fixed frequency of operation for the ADP2108AUJZ-3.3-R7?
The fixed frequency of operation is 3 MHz.
- What is the typical quiescent current of the ADP2108AUJZ-3.3-R7?
The typical quiescent current is 18 μA.
- What are the protection features of the ADP2108AUJZ-3.3-R7?
The device includes current overload protection, thermal shutdown protection, and undervoltage lockout.
- What package types are available for the ADP2108AUJZ-3.3-R7?
The device is available in SOT-23-5 and TSOT-23-5 packages.
- What is the shutdown supply current of the ADP2108AUJZ-3.3-R7?
The shutdown supply current is 0.2 μA.
- What design tool supports the ADP2108AUJZ-3.3-R7?
The device is supported by the ADIsimPower™ design tool.
- What are some typical applications for the ADP2108AUJZ-3.3-R7?
Typical applications include PDAs, wireless handsets, digital audio players, digital cameras, and GPS navigation units.
- How does the ADP2108AUJZ-3.3-R7 manage efficiency at light loads?
The device transitions to a power save mode at light loads, which reduces regulation power losses and improves conversion efficiency.
