Overview
The ADP5310AREZN-3.3R7, produced by Analog Devices Inc., is a highly integrated power management solution that combines dual buck regulators and a high-side load switch. This device is packaged in a 16-lead TSSOP_EP, making it ideal for applications where both performance and board space are critical. The ADP5310 supports a wide input voltage range of 2.7 V to 15.0 V, allowing it to be powered by various sources including alkaline/NiMH or lithium cells.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Input Voltage Range | 2.7 V to 15.0 V | Wide input voltage range supporting multiple power sources |
| Quiescent Current | 700 nA (EN1 = SYNC/MODE = low) | Low quiescent current for energy-efficient operation |
| Output Accuracy | ±1.5% over full temperature range in PWM mode | High accuracy for stable output voltage |
| Switching Frequency | 600 kHz (or 1.2 MHz) with optional synchronization input from 400 kHz to 1.4 MHz | Flexible switching frequency options |
| Channel 1 Output Current | Up to 800 mA | High current output for demanding applications |
| Channel 2 Output Current | Up to 50 mA in hysteresis mode, up to 300 mA in PWM mode | Ultralow power buck regulator with adjustable output current |
| Load Switch RDS(ON) | 494 mΩ at VOUT3 = 2.5 V | Low on-resistance for efficient power delivery |
| Operating Temperature Range | −40°C to +125°C | Wide operating temperature range for various environments |
Key Features
- Dual Buck Regulators: Channel 1 provides up to 800 mA, while Channel 2 offers up to 50 mA in hysteresis mode and up to 300 mA in PWM mode.
- High-Side Load Switch: With low RDS(ON) of 494 mΩ at VOUT3 = 2.5 V, providing power domain isolation and extending battery operation time.
- Flexible Operation Modes: Automatic PSM/PWM or forced PWM mode via factory fuse for Channel 1, and selectable hysteresis or PWM operation mode for Channel 2.
- Low Noise and High Efficiency: Low output ripple in PWM mode and excellent efficiency in light output current conditions.
- Safety Features: Overcurrent protection (OCP), thermal shutdown (TSD), and input under-voltage lockout (UVLO).
- Power-Good Signal: Indicates that the output of Channel 1 is within 92% of its nominal value.
Applications
- Battery-Powered Systems: Ideal for systems requiring low power consumption and high efficiency, such as portable electronics and IoT devices.
- Industrial Automation: Suitable for industrial control systems, sensors, and other automation equipment requiring reliable power management.
- Medical Devices: Applicable in medical devices that need precise voltage regulation and low noise operation.
- Aerospace and Defense: Can be used in various aerospace and defense applications where high reliability and efficiency are crucial.
Q & A
- What is the input voltage range of the ADP5310AREZN-3.3R7?
The input voltage range is 2.7 V to 15.0 V.
- What are the output current capabilities of the two buck regulators?
Channel 1 can provide up to 800 mA, while Channel 2 can provide up to 50 mA in hysteresis mode and up to 300 mA in PWM mode.
- What is the switching frequency of the ADP5310AREZN-3.3R7?
The switching frequency is 600 kHz (or 1.2 MHz) with optional synchronization input from 400 kHz to 1.4 MHz.
- Does the ADP5310AREZN-3.3R7 have any safety features?
Yes, it includes overcurrent protection (OCP), thermal shutdown (TSD), and input under-voltage lockout (UVLO).
- What is the operating temperature range of the ADP5310AREZN-3.3R7?
The operating temperature range is −40°C to +125°C.
- What is the purpose of the high-side load switch in the ADP5310AREZN-3.3R7?
The high-side load switch provides power domain isolation and extends battery operation time.
- Can the ADP5310AREZN-3.3R7 be used in battery-powered systems?
Yes, it is ideal for battery-powered systems due to its low power consumption and high efficiency.
- How does the ADP5310AREZN-3.3R7 achieve low noise operation?
It achieves low noise operation through its PWM mode, which provides low output ripple.
- What is the quiescent current of the ADP5310AREZN-3.3R7 when EN1 = SYNC/MODE = low?
The quiescent current is 700 nA.
- Does the ADP5310AREZN-3.3R7 have a power-good signal?
Yes, it includes a power-good signal that indicates the output of Channel 1 is within 92% of its nominal value.
