Overview
The ADP2102YCPZ-3-R7 is a synchronous step-down DC-DC converter produced by Analog Devices Inc. This device is designed to convert an unregulated input voltage ranging from 2.7 V to 5.5 V to a lower regulated output voltage with high efficiency and accuracy. The ADP2102 features a constant on-time current-mode control architecture, which allows for the generation of very low output voltages at high switching frequencies and provides a fast load and line transient response. It is particularly suited for applications requiring minimal external component count and size.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 5.5 | V |
| Output Voltage Range | 1.5 to 3.3 (adjustable) | V |
| Output Current | 0.6 | A |
| Switching Frequency | 3 MHz (typical) | Hz |
| Efficiency | Up to 95% | % |
| Shutdown Supply Current | 0.01 µA | A |
| Package Type | 8-lead LFCSP (3 mm × 3 mm) | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Thermal Shutdown Threshold | 150°C | °C |
| Thermal Shutdown Hysteresis | 15°C | °C |
Key Features
- Internal synchronous rectifier and soft start
- Undervoltage lockout, thermal shutdown, and short-circuit protection
- Constant on-time current-mode control with voltage feed forward
- Low duty cycle capability ideal for USB applications and 5 V systems
- Forced continuous conduction mode (CCM) and power save mode (PSM)
- Enable/shutdown logic input
- Small ceramic output capacitors supported
Applications
- USB powered devices
- WLAN and gateways
- Point of loads
- Processor core power from 5 V
- Digital cameras
- PDAs and palmtop computers
- Portable media players and GPS devices
Q & A
- What is the input voltage range of the ADP2102YCPZ-3-R7?
The input voltage range is from 2.7 V to 5.5 V. - What are the available output voltage options for the ADP2102YCPZ-3-R7?
The output voltage can be adjusted from 1.5 V to 3.3 V. - What is the typical switching frequency of the ADP2102YCPZ-3-R7?
The typical switching frequency is 3 MHz. - What is the maximum output current of the ADP2102YCPZ-3-R7?
The maximum output current is 0.6 A. - What are the key protection features of the ADP2102YCPZ-3-R7?
The device features undervoltage lockout, thermal shutdown, and short-circuit protection. - What is the package type and size of the ADP2102YCPZ-3-R7?
The package type is an 8-lead LFCSP with dimensions of 3 mm × 3 mm. - What are the operating modes of the ADP2102YCPZ-3-R7?
The device operates in forced continuous conduction mode (CCM) and power save mode (PSM). - What is the shutdown supply current of the ADP2102YCPZ-3-R7?
The shutdown supply current is 0.01 µA. - What is the thermal shutdown threshold of the ADP2102YCPZ-3-R7?
The thermal shutdown threshold is 150°C. - What are some typical applications of the ADP2102YCPZ-3-R7?
Typical applications include USB powered devices, WLAN and gateways, point of loads, processor core power from 5 V, digital cameras, PDAs, and portable media players.
