Overview
The ADP5310AREZN-255R7, produced by Analog Devices Inc., is a highly integrated power management IC that combines dual buck regulators and one load switch. This device is designed to meet demanding performance and board space requirements, making it ideal for a variety of applications. It features a wide input voltage range of 2.7 V to 15.0 V, allowing it to be powered by multiple alkaline/NiMH or lithium cells and other power sources.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Input Voltage Range | 2.7 | - | 15.0 | V | - |
| Quiescent Current (EN1 = SYNC/MODE = low) | - | 700 | - | nA | - |
| Switching Frequency | 600 kHz | - | 1.2 MHz | - | Optional synchronization input from 400 kHz to 1.4 MHz |
| Channel 1 Output Current | - | - | 800 mA | - | - |
| Channel 2 Output Current (Hysteresis Mode) | - | - | 50 mA | - | - |
| Channel 2 Output Current (PWM Mode) | - | - | 300 mA | - | - |
| Load Switch RDS(ON) | - | - | 494 mΩ | - | VOUT3 = 2.5 V |
| Output Voltage Accuracy (PWM Mode) | −1.5% | - | +1.5% | - | Over full temperature range |
Key Features
- Dual buck regulators and one load switch in a 16-lead TSSOP_EP package.
- Wide input voltage range: 2.7 V to 15.0 V.
- Low quiescent current: 700 nA when EN1 = SYNC/MODE = low.
- Channel 1: 800 mA buck regulator with automatic PSM/PWM or forced PWM mode.
- Channel 2: Ultralow power buck regulator with selectable hysteresis or PWM operation mode.
- Channel 3: High-side load switch with low RDS(ON) of 494 mΩ at VOUT3 = 2.5 V.
- Quick output discharge (QOD) option and UVLO, OCP protection.
- Adjustable/fixed output voltage options via factory fuse.
- Power-good flag for Channel 1 output.
Applications
The ADP5310AREZN-255R7 is suitable for various applications requiring efficient power management, such as:
- Portable electronics (e.g., smartphones, tablets, and laptops).
- Industrial control systems.
- Automotive systems.
- Medical devices.
- Consumer electronics (e.g., set-top boxes, gaming consoles).
Q & A
- What is the input voltage range of the ADP5310AREZN-255R7?
The input voltage range is from 2.7 V to 15.0 V.
- What is the quiescent current when EN1 = SYNC/MODE = low?
The quiescent current is 700 nA.
- What are the output current capabilities of the buck regulators?
Channel 1 can provide up to 800 mA, Channel 2 can provide up to 50 mA in hysteresis mode and up to 300 mA in PWM mode.
- What is the RDS(ON) of the load switch?
The RDS(ON) of the load switch is 494 mΩ at VOUT3 = 2.5 V.
- Does the device support adjustable output voltage?
- What protection features does the device have?
The device includes UVLO, OCP, and quick output discharge (QOD) option.
- What is the switching frequency range of the device?
The switching frequency range is from 600 kHz to 1.2 MHz with optional synchronization input from 400 kHz to 1.4 MHz.
- Is there a power-good signal available?
- What is the package type of the ADP5310AREZN-255R7?
The device is packaged in a 16-lead TSSOP_EP package.
- What are the typical applications for this device?
The device is suitable for portable electronics, industrial control systems, automotive systems, medical devices, and consumer electronics.
