LM26001BMH/NOPB

Product Overview

Category: Power Management ICs
Use: Voltage Regulator
Characteristics: High Efficiency, Wide Input Voltage Range
Package: 20-Pin HTSSOP
Essence: Step-Down (Buck) Converter
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 55V
• Maximum Output Current: 3A
• Switching Frequency: 100kHz to 2.2MHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. PGND: Power ground pin
3. SW: Switch node connection for the internal power switch
4. FB: Feedback pin for output voltage regulation
5. COMP: Compensation pin for loop stability
6. EN: Enable pin for turning on/off the regulator
7. SS/TR: Soft-start/Tracking pin for controlling the startup time
8. VCC: Supply voltage pin for internal control circuitry
9. AGND: Analog ground pin
10. SYNC: Synchronization pin for external clock input
11. RT/CLKOUT: Resistor divider pin for setting switching frequency or generating a clock signal
12. CLKIN: External clock input pin
13. BOOT: Bootstrap capacitor connection pin
14. BST: Boost capacitor connection pin
15. SS/TR: Soft-start/Tracking pin for controlling the startup time
16. PGND: Power ground pin
17. SW: Switch node connection for the internal power switch
18. FB: Feedback pin for output voltage regulation
19. COMP: Compensation pin for loop stability
20. VIN: Input voltage pin

Functional Features

• Wide input voltage range allows operation in various applications
• High efficiency minimizes power loss and maximizes battery life
• Adjustable output voltage provides flexibility for different loads
• Integrated protection features such as overcurrent and thermal shutdown
• Soft-start function prevents excessive inrush current during startup
• Synchronization capability enables multiple regulators to work together

Advantages and Disadvantages

Advantages: - Wide input voltage range makes it suitable for a wide range of applications - High efficiency helps conserve energy and prolong battery life - Compact package size saves board space - Integrated protection features enhance system reliability

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Requires external components for proper operation - Higher cost compared to non-programmable voltage regulators

Working Principles

The LM26001BMH/NOPB is a step-down (buck) voltage regulator that converts a higher input voltage to a lower output voltage. It utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. The internal power switch, controlled by the PWM signal, switches on and off at a high frequency to deliver the desired output voltage. Feedback from the output voltage is continuously monitored and compared to a reference voltage, adjusting the duty cycle of the PWM signal to maintain a stable output voltage.

Detailed Application Field Plans

The LM26001BMH/NOPB is commonly used in various applications, including:

1. Industrial automation systems
2. Automotive electronics
3. Telecommunications equipment
4. Power distribution systems
5. Renewable energy systems
6. Consumer electronics

Detailed and Complete Alternative Models

1. LM2596S-ADJ/NOPB
2. LM2678SX-ADJ/NOPB
3. LM22672MRX-ADJ/NOPB
4. LM5007MM/NOPB
5. LM2733YMF/NOPB

These alternative models offer similar functionality and can be considered as substitutes for the LM26001BMH/NOPB in various applications.

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