LM5035BMH/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High voltage, high frequency, synchronous buck controller
• Package: 20-TSSOP (Thin Shrink Small Outline Package)
• Essence: Efficient power conversion and regulation
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 100V
• Output Voltage Range: 0.8V to 85V
• Switching Frequency: Up to 1MHz
• Maximum Duty Cycle: 90%
• Operating Temperature Range: -40°C to +125°C
• Features: Adjustable soft-start, cycle-by-cycle current limit, thermal shutdown, precision reference voltage

Pin Configuration

The LM5035BMH/NOPB has a 20-pin TSSOP package with the following pin configuration:

1. VCC
2. GND
3. FB
4. COMP
5. SS/TR
6. SYNC
7. RT/CT
8. AGND
9. PGND
10. BST
11. SW
12. SW
13. SW
14. SW
15. SW
16. SW
17. SW
18. SW
19. SW
20. SW

Functional Features

• High efficiency power conversion
• Wide input voltage range
• Adjustable output voltage
• Synchronous rectification for improved efficiency
• Overcurrent protection
• Thermal shutdown protection
• Soft-start for controlled startup

Advantages and Disadvantages

Advantages: - High voltage and frequency capability - Efficient power conversion - Wide input and output voltage range - Comprehensive protection features - Adjustable soft-start for controlled startup

Disadvantages: - Requires external components for operation - Limited maximum duty cycle (90%)

Working Principles

The LM5035BMH/NOPB is a synchronous buck controller IC that regulates the output voltage by controlling the duty cycle of the power switch. It operates by converting the input voltage to a high-frequency AC signal, which is then rectified and filtered to provide the desired DC output voltage. The controller adjusts the duty cycle based on feedback from the output voltage, maintaining a stable and regulated output.

Application Field Plans

The LM5035BMH/NOPB is commonly used in various applications, including:

1. Power supplies for industrial equipment
2. Telecom infrastructure
3. Automotive electronics
4. LED lighting systems
5. Renewable energy systems

Alternative Models

Other alternative models with similar functionality to the LM5035BMH/NOPB include:

1. LM5117: Synchronous buck controller with integrated MOSFET drivers
2. LT8610: High efficiency synchronous buck controller with wide input voltage range
3. TPS54332: Step-down converter with adjustable output voltage and current limit protection

These alternative models offer different features and specifications, providing flexibility for various application requirements.

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