Overview
The ADP2102YCPZ-1-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 is particularly suited for applications requiring low output voltages and high switching frequencies, making it ideal for USB-powered devices, WLAN and gateways, point of loads, and processor core power supplies.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 5.5 | V |
| Output Voltage Range | 0.8 to 1.2 (adjustable) | V |
| Output Current | 600 mA | mA |
| Switching Frequency | 3 MHz (typical) | MHz |
| Synchronous Rectifier | Yes | - |
| Operating Temperature | -40°C to 85°C | °C |
| Package Type | 8-LFCSP (3x3 mm) | - |
| Mounting Type | Surface Mount | - |
| Thermal Shutdown Threshold | 150°C | °C |
| Thermal Shutdown Hysteresis | 15°C | °C |
Key Features
- High efficiency up to 95% and 1% output voltage accuracy
- Constant on-time current-mode control architecture with voltage feed forward
- Internal synchronous rectifier and internal soft start
- Internal compensation and enable/shutdown logic input
- Undervoltage lockout, thermal shutdown, and short-circuit protection
- Valley current-mode control to prevent minimum on-time limitations at low output voltages
- Forced continuous conduction mode (CCM) and power save mode (PSM) for different load conditions
- Low duty cycle capability, ideal for USB applications and 5 V systems powering submicron processor cores
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-1-R7?
The input voltage range is from 2.7 V to 5.5 V.
- What is the typical switching frequency of the ADP2102YCPZ-1-R7?
The typical switching frequency is 3 MHz.
- Does the ADP2102YCPZ-1-R7 have a synchronous rectifier?
Yes, it has an internal synchronous rectifier.
- What is the maximum output current of the ADP2102YCPZ-1-R7?
The maximum output current is 600 mA.
- What are the operating temperature ranges for the ADP2102YCPZ-1-R7?
The operating temperature range is from -40°C to 85°C.
- What type of control architecture does the ADP2102YCPZ-1-R7 use?
The ADP2102YCPZ-1-R7 uses a constant on-time current-mode control architecture with voltage feed forward.
- Does the ADP2102YCPZ-1-R7 have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold of 150°C and hysteresis of 15°C.
- What are the package and mounting types of the ADP2102YCPZ-1-R7?
The package type is 8-LFCSP (3x3 mm) and it is a surface mount device.
- What are the key protection features of the ADP2102YCPZ-1-R7?
The key protection features include undervoltage lockout, thermal shutdown, and short-circuit protection.
- Can the ADP2102YCPZ-1-R7 operate in different modes based on load conditions?
Yes, it can operate in forced continuous conduction mode (CCM) and power save mode (PSM) based on load conditions.
