MAX1589EZT250+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High efficiency, low dropout voltage, small package size
• Package: 6-pin Thin SOT23
• Essence: Power management solution for portable electronic devices
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 2.5V
• Output Current: Up to 300mA
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1589EZT250+T has the following pin configuration:

1. GND: Ground connection
2. FB: Feedback pin for output voltage regulation
3. EN: Enable pin to control device operation
4. VIN: Input voltage supply
5. VOUT: Output voltage
6. BYP: Bypass capacitor connection for improved stability

Functional Features

• High efficiency voltage regulation for portable devices
• Low dropout voltage enables operation with low input voltages
• Small package size allows for space-constrained designs
• Enable pin for easy on/off control of the device
• Stable output voltage with minimal fluctuations

Advantages

• High efficiency results in longer battery life for portable devices
• Low dropout voltage allows for efficient power conversion
• Small package size saves valuable board space
• Enable pin provides flexibility in device control
• Stable output voltage ensures reliable performance

Disadvantages

• Limited output current may not be suitable for high-power applications
• Fixed output voltage restricts flexibility in voltage selection

Working Principles

The MAX1589EZT250+T is a voltage regulator IC that converts an input voltage within the range of 2.5V to 5.5V to a fixed output voltage of 2.5V. It achieves high efficiency by minimizing the dropout voltage, which is the minimum voltage difference between the input and output required for proper regulation.

The device utilizes feedback control to maintain a stable output voltage. The FB pin is connected to a resistive voltage divider network that provides feedback to the internal control circuitry. This allows the regulator to adjust its output voltage based on the feedback signal, compensating for any variations in the input voltage or load conditions.

The BYP pin is used to connect an external bypass capacitor, which improves stability by reducing noise and transient response issues. The EN pin enables or disables the device, providing control over its operation.

Detailed Application Field Plans

The MAX1589EZT250+T is commonly used in various portable electronic devices, including:

1. Smartphones and tablets
2. Portable media players
3. Wearable devices
4. Digital cameras
5. Handheld gaming consoles

Its small package size and low dropout voltage make it suitable for space-constrained designs with limited power supply options. The stable output voltage ensures reliable performance in these applications.

Alternative Models

• MAX1589ETM250+: 8-pin TDFN package, higher output current capability
• MAX1589EZT300+: 6-pin Thin SOT23 package, higher output voltage (3.0V)
• MAX1589EZT180+: 6-pin Thin SOT23 package, lower output voltage (1.8V)

These alternative models offer different output voltage options and package sizes to cater to specific application requirements.

In conclusion, the MAX1589EZT250+T is a voltage regulator IC designed for efficient power management in portable electronic devices. Its high efficiency, low dropout voltage, and small package size make it an ideal choice for space-constrained designs. While it has limitations in terms of output current and fixed output voltage, it offers stable performance and reliable voltage regulation.