Overview
The ADP2105ACPZ-1.5-R7, produced by Analog Devices Inc., is a low quiescent current, synchronous, step-down DC-to-DC converter. This device is part of the ADP2105/ADP2106/ADP2107 family and is designed to operate in a compact 4 mm × 4 mm LFCSP package. It is optimized for high efficiency and minimal external component count, making it ideal for portable and battery-powered applications.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V |
| Output Voltage Range | 0.8 V to VIN (adjustable), preset options: 3.3 V, 1.8 V, 1.5 V, 1.2 V |
| Maximum Load Current | 1.5 A (ADP2106) |
| Quiescent Current | 20 μA |
| Shutdown Supply Current | 0.1 μA |
| Switching Frequency | 1.2 MHz |
| Maximum Duty Cycle | 100% |
| Package Type | 16-lead 4 mm × 4 mm LFCSP |
| Operating Temperature Range | −40°C to +125°C |
| Thermal Shutdown Threshold | 140 °C |
Key Features
- High efficiency up to 97%
- Ultralow quiescent current of 20 μA
- Integrated synchronous rectifier for high efficiency
- Smooth transition into low dropout (LDO) mode
- Enable/shutdown logic input
- Undervoltage lockout to prevent deep battery discharge
- Programmable soft start to limit inrush current at startup
- Supported by ADIsimPower™ design tool
Applications
- Mobile handsets
- PDAs and palmtop computers
- Telecommunication and networking equipment
- Set-top boxes
- Audio/video consumer electronics
Q & A
- What is the input voltage range of the ADP2105ACPZ-1.5-R7?
The input voltage range is from 2.7 V to 5.5 V.
- What are the preset output voltage options available for this device?
The preset output voltage options are 3.3 V, 1.8 V, 1.5 V, and 1.2 V.
- What is the maximum load current for the ADP2106 model?
The maximum load current for the ADP2106 model is 1.5 A.
- What is the quiescent current of the ADP2105/ADP2106/ADP2107 devices?
The quiescent current is 20 μA.
- What is the switching frequency of these devices?
The switching frequency is 1.2 MHz.
- What is the package type and size of the ADP2105ACPZ-1.5-R7?
The package type is a 16-lead 4 mm × 4 mm LFCSP.
- What are the key features that contribute to the high efficiency of these devices?
The integrated synchronous rectifier, high switching frequency, and ability to transition into LDO mode contribute to the high efficiency.
- What applications are these devices typically used in?
These devices are typically used in mobile handsets, PDAs, telecommunication equipment, set-top boxes, and audio/video consumer electronics.
- What design tool supports the ADP2105/ADP2106/ADP2107 devices?
These devices are supported by the ADIsimPower™ design tool.
- What is the thermal shutdown threshold for these devices?
The thermal shutdown threshold is 140 °C.
