Overview
The ADP2108AUJZ-1.82R7 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, making it suitable for a variety of portable and battery-powered applications. The ADP2108 features a fixed frequency of 3 MHz and uses a proprietary high-speed current mode, constant frequency PWM control scheme for excellent stability and transient response.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage | 1.0 V to 3.3 V (adjustable, but specific model ADP2108AUJZ-1.82R7 is set to 1.82 V) |
| Maximum Load Current | 600 mA |
| Fixed Frequency | 3 MHz |
| Typical Quiescent Current | 18 μA |
| Peak Efficiency | 95% |
| Shutdown Supply Current | 0.2 μA |
| Package Type | TSOT23-5, WLCSP 5-ball |
Key Features
- High efficiency with a peak efficiency of 95%
- Fixed frequency operation at 3 MHz
- Low quiescent current of 18 μA
- Maximum load current of 600 mA
- Internal synchronous rectifier and internal compensation
- Internal soft start and current overload protection
- Thermal shutdown protection
- 100% duty cycle low dropout mode
- Support for tiny multilayer inductors and capacitors
- Supported by ADIsimPower™ design tool
Applications
The ADP2108AUJZ-1.82R7 is designed for use in various portable and battery-powered devices, including:
- 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-1.82R7?
The input voltage range is 2.3 V to 5.5 V. - What is the fixed frequency of operation for the ADP2108?
The fixed frequency is 3 MHz. - What is the maximum load current the ADP2108 can handle?
The maximum load current is 600 mA. - What is the typical quiescent current of the ADP2108?
The typical quiescent current is 18 μA. - Does the ADP2108 have internal protection features?
Yes, it includes current overload protection, thermal shutdown protection, and undervoltage lockout. - What is the peak efficiency of the ADP2108?
The peak efficiency is 95%. - What are the package types available for the ADP2108?
The ADP2108 is available in TSOT23-5 and WLCSP 5-ball packages. - Is the ADP2108 supported by any design tools?
Yes, it is supported by the ADIsimPower™ design tool. - What is the shutdown supply current of the ADP2108?
The shutdown supply current is 0.2 μA. - What are some typical applications for the ADP2108?
Typical applications include PDAs, wireless handsets, digital audio players, digital cameras, and GPS navigation units.
