MAX8810AETM+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High-efficiency, low-quiescent current step-down DC-DC converter - Designed for portable devices and battery-powered applications - Provides a regulated output voltage from a single Li+/Li-poly cell or 3-cell NiMH/NiCd input - Offers high efficiency over a wide load range - Includes an internal synchronous rectifier to minimize external component count - Features a low-dropout linear regulator for powering the system microcontroller

Package: TDFN-10 (Thin Dual Flat No-Lead) package

Essence: The MAX8810AETM+ is a highly efficient step-down DC-DC converter designed for portable devices and battery-powered applications. It provides a regulated output voltage from a single Li+/Li-poly cell or 3-cell NiMH/NiCd input.

Packaging/Quantity: The MAX8810AETM+ is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1.2A
• Quiescent Current: 16µA (typical)
• Efficiency: Up to 96%
• Switching Frequency: 1MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX8810AETM+ has the following pin configuration:

1. EN (Enable): Enable control pin for turning the device on/off.
2. FB (Feedback): Feedback pin for regulating the output voltage.
3. SW (Switch): Switching node for the internal synchronous rectifier.
4. GND (Ground): Ground reference pin.
5. LX (Inductor): Connection to the inductor.
6. VOUT (Output Voltage): Regulated output voltage.
7. PG (Power Good): Power good indicator pin.
8. VIN (Input Voltage): Input voltage supply pin.
9. BST (Bootstrap): Bootstrap capacitor connection.
10. SS/TRK (Soft-Start/Tracking): Soft-start and tracking control pin.

Functional Features

1. High Efficiency: The MAX8810AETM+ offers high efficiency over a wide load range, ensuring optimal power conversion.
2. Low Quiescent Current: With a quiescent current of only 16µA, the device minimizes power consumption during standby or idle modes.
3. Internal Synchronous Rectifier: The integrated synchronous rectifier reduces external component count and improves overall efficiency.
4. Low-Dropout Linear Regulator: The built-in low-dropout linear regulator powers the system microcontroller, providing stable and reliable operation.

Advantages and Disadvantages

Advantages: - High efficiency - Low quiescent current - Integrated synchronous rectifier - Compact package size - Wide input voltage range

Disadvantages: - Limited maximum output current (1.2A)

Working Principles

The MAX8810AETM+ operates as a step-down DC-DC converter using pulse-width modulation (PWM) techniques. It converts the input voltage to a regulated output voltage by controlling the duty cycle of the internal switch. The device utilizes an internal synchronous rectifier to minimize power losses and improve efficiency. Additionally, it incorporates a low-dropout linear regulator to power the system microcontroller.

Detailed Application Field Plans

The MAX8810AETM+ is suitable for various portable devices and battery-powered applications, including but not limited to: - Smartphones and tablets - Portable media players - Digital cameras - Handheld gaming consoles - Wearable devices - GPS navigation systems

Detailed and Complete Alternative Models

1. MAX8810AETM+: The standard version of the MAX8810AETM+.
2. MAX8810AETM+T: Tape and reel packaging with a quantity of 2500 units per reel.
3. MAX8810AETM+TG36: Tape and reel packaging with a quantity of 3000 units per reel and a green compound option.

Note: Please refer to the manufacturer's datasheet for a comprehensive list of alternative models and their specifications.

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