Overview
The ADP2105ACPZ-R7, produced by Analog Devices Inc., is a low quiescent current, synchronous step-down DC-to-DC converter. It is part of the ADP2105/ADP2106/ADP2107 family, designed to provide high efficiency and minimal external part count. This converter is housed in a compact 4 mm × 4 mm LFCSP package, making it ideal for space-constrained applications. The device is optimized for use in portable electronics, ensuring long battery life through its ultra-low quiescent current and efficient power management schemes.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Maximum Load Current | 1 A | |
| 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 | |
| Switching Frequency | 1.2 MHz | |
| Quiescent Current | 20 μA | |
| Shutdown Supply Current | 0.1 μA | |
| Operating Temperature Range | -40°C to 125°C (TJ) | |
| Package Type | 16-lead 4 mm × 4 mm LFCSP | |
| Efficiency | Up to 97% |
Key Features
- High efficiency up to 97% and ultra-low quiescent current of 20 μA.
- Synchronous rectifier and integrated power switch for minimal external part count and high efficiency.
- Pulse frequency modulation (PFM) control scheme under light load conditions to reduce switching frequency and save power.
- Current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response at medium to high load currents.
- Smooth transition into low dropout (LDO) mode.
- Enable/shutdown logic input, undervoltage lockout, and 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 maximum load current of the ADP2105ACPZ-R7?
The maximum load current of the ADP2105ACPZ-R7 is 1 A.
- What is the input voltage range for the ADP2105ACPZ-R7?
The input voltage range is from 2.7 V to 5.5 V.
- What are the available output voltage options for the ADP2105ACPZ-R7?
The output voltage is adjustable from 0.8 V to VIN, with preset options of 3.3 V, 1.8 V, 1.5 V, and 1.2 V.
- What is the switching frequency of the ADP2105ACPZ-R7?
The switching frequency is 1.2 MHz.
- How much quiescent current does the ADP2105ACPZ-R7 consume?
The quiescent current is 20 μA.
- What is the shutdown supply current of the ADP2105ACPZ-R7?
The shutdown supply current is less than 0.1 μA.
- What is the operating temperature range for the ADP2105ACPZ-R7?
The operating temperature range is from -40°C to 125°C (TJ).
- What type of package does the ADP2105ACPZ-R7 come in?
The ADP2105ACPZ-R7 comes in a 16-lead 4 mm × 4 mm LFCSP package.
- What are some key applications of the ADP2105ACPZ-R7?
Key applications include mobile handsets, PDAs, telecommunication and networking equipment, set-top boxes, and audio/video consumer electronics.
- Does the ADP2105ACPZ-R7 support any design tools?
Yes, it is supported by the ADIsimPower™ design tool.
