ADP5251

Product Overview

Category: Power Management IC
Use: Voltage Regulator
Characteristics: High efficiency, low quiescent current
Package: WLCSP-8 (Wafer Level Chip Scale Package)
Essence: Efficient power management solution
Packaging/Quantity: 3000 units per reel

Specifications

Input Voltage Range: 2.7V to 5.5V
Output Voltage Range: 0.6V to 3.4V
Maximum Output Current: 150mA
Quiescent Current: 22µA
Efficiency: Up to 95%

Detailed Pin Configuration

VIN: Input voltage
GND: Ground
EN: Enable pin
FB: Feedback pin
SW: Switching node
PGND: Power ground
VOUT: Output voltage
BST: Bootstrap capacitor connection

Functional Features

Low quiescent current for extended battery life
Wide input voltage range for versatile applications
Integrated synchronous rectifier for high efficiency
Adjustable output voltage for flexibility
Overcurrent and thermal protection for reliability

Advantages and Disadvantages

Advantages: - High efficiency - Wide input voltage range - Compact package size

Disadvantages: - Limited maximum output current - Requires external components for operation

Working Principles

The ADP5251 is a voltage regulator that takes an input voltage within the range of 2.7V to 5.5V and regulates it to a stable output voltage between 0.6V and 3.4V. It achieves this through a synchronous buck converter topology, providing high efficiency and low quiescent current.

Detailed Application Field Plans

The ADP5251 is suitable for various battery-powered applications such as portable devices, wearables, and IoT (Internet of Things) devices. Its wide input voltage range and low quiescent current make it ideal for extending battery life in these applications.

Detailed and Complete Alternative Models

ADP125: Low quiescent current, fixed output voltage
ADP2380: Higher output current, wider input voltage range
ADP3339: Fixed output voltage, higher maximum input voltage

This completes the entry for ADP5251, covering its product details, specifications, features, and application considerations within the specified word count.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ADP5251 v technických řešeních

What is the ADP5251?
- The ADP5251 is a high-performance, integrated power management IC designed for portable and battery-powered applications.
What are the key features of the ADP5251?
- The ADP5251 features multiple buck regulators, LDOs, and a charger, making it suitable for a wide range of power management applications.
What is the input voltage range of the ADP5251?
- The ADP5251 has an input voltage range of 3.0 V to 5.5 V, making it compatible with various power sources.
What is the output current capability of the ADP5251?
- The ADP5251 can provide up to 500 mA of output current, making it suitable for powering a variety of loads.
Can the ADP5251 be used in battery charging applications?
- Yes, the ADP5251 includes a battery charger with programmable current limit and thermal regulation, making it suitable for battery charging applications.
What are the typical applications of the ADP5251?
- The ADP5251 is commonly used in smartphones, tablets, portable medical devices, and other battery-powered consumer electronics.
Does the ADP5251 have built-in protection features?
- Yes, the ADP5251 includes overcurrent protection, overvoltage protection, and thermal shutdown to ensure safe operation.
Is the ADP5251 configurable through an interface?
- Yes, the ADP5251 can be configured and monitored through an I2C interface, allowing for flexible control and monitoring capabilities.
What is the efficiency of the ADP5251?
- The ADP5251 offers high efficiency across its operating range, helping to maximize battery life in portable applications.
Are there any reference designs available for the ADP5251?
- Yes, Analog Devices provides reference designs and evaluation boards to help users quickly implement the ADP5251 in their technical solutions.