LM25101BMAX/NOPB

Product Overview

• Category: Voltage Regulator
• Use: Step-Down (Buck) Switching Regulator
• Characteristics: High Efficiency, Wide Input Voltage Range, Adjustable Output Voltage
• Package: 16-pin TSSOP
• Essence: Power Management IC
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 42V
• Output Voltage Range: 1.225V to 37V
• Output Current: Up to 1A
• Switching Frequency: 100kHz to 2.2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN (Pin 1): Input Voltage
2. SW (Pin 2): Switch Node
3. GND (Pins 3, 4, 5, 6, 7, 8): Ground
4. FB (Pin 9): Feedback Voltage
5. COMP (Pin 10): Compensation
6. SS/TR/UVLO (Pin 11): Soft Start/Tracking/Undervoltage Lockout
7. EN (Pin 12): Enable
8. PG (Pin 13): Power Good
9. VOUT (Pin 14): Output Voltage
10. BST (Pin 15): Bootstrap
11. RT/CLKIN (Pin 16): Timing Resistor/Clock Synchronization

Functional Features

• Integrated N-Channel Buck Switch
• Adjustable Output Voltage
• Cycle-by-Cycle Current Limit
• Programmable Soft Start
• Power Good Output
• Thermal Shutdown and Overcurrent Protection

Advantages and Disadvantages

Advantages

• Wide Input Voltage Range
• High Efficiency
• Small Package Size
• Flexible Output Voltage Adjustment

Disadvantages

• Limited Output Current (Up to 1A)
• External Components Required for Operation

Working Principles

The LM25101BMAX/NOPB is a step-down switching regulator that uses a buck topology to efficiently convert higher input voltages to lower output voltages. It utilizes pulse-width modulation (PWM) to control the duty cycle of the internal N-channel MOSFET switch, regulating the output voltage based on the feedback signal.

Detailed Application Field Plans

The LM25101BMAX/NOPB is suitable for various applications including: - Industrial Power Supplies - Automotive Electronics - Distributed Power Systems - Battery-Powered Equipment - LED Lighting

Detailed and Complete Alternative Models

• LM2675
• LM22675
• LM3150
• LM43603

In conclusion, the LM25101BMAX/NOPB is a versatile voltage regulator with a wide input voltage range, making it suitable for diverse applications in power management. Its high efficiency and adjustable output voltage provide flexibility, although its limited output current and external component requirements should be considered when selecting this device for specific designs.

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