Overview
The LM43602PWP is a synchronous step-down DC-DC converter manufactured by Texas Instruments. Designed for ease of use, it operates within an input voltage range of 3.5 V to 36 V (with a maximum absolute voltage of 42 V) and can drive load currents up to 2 A. This component is particularly suited for applications requiring high efficiency, precision output, and compact design. Its market positioning targets industries such as automotive, industrial automation, and consumer electronics, where reliability and performance are critical. The LM43602PWP stands out for its advanced features, including programmable switching frequency, internal soft start, and robust protection mechanisms.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 3.5 to 36 | V | Max 42 V abs |
| Output Current | Up to 2 | A | |
| Switching Frequency | 200k to 2.2M | Hz | Programmable |
| Operating Temperature | -40 to +125 | °C | |
| Package | HTSSOP (PWP) | 16-pin, 6.6 mm × 5.1 mm × 1.2 mm | |
| Efficiency | High | Light load efficiency enhanced by DCM and PFM | |
| Protection Features | Thermal shutdown, UVLO, cycle-by-cycle current limit, short-circuit protection |
Key Features
- Peak current mode control for simplified loop compensation.
- Programmable switching frequency for design flexibility.
- Internal soft start and scalable soft start for controlled startup.
- Discontinuous conduction mode (DCM) and automatic frequency modulation for improved light load efficiency.
- Integrated protection features including thermal shutdown and output short-circuit protection.
Applications
The LM43602PWP is widely used in automotive electronics, industrial automation, and consumer electronics. In automotive applications, it ensures reliable power conversion in harsh environments, meeting AEC-Q100 standards. For industrial automation, its high efficiency and compact design make it ideal for powering control systems and sensors. In consumer electronics, it provides precise voltage regulation for devices such as smart home gadgets and portable electronics.
Q & A
1. What is the input voltage range of the LM43602PWP?
The input voltage range is 3.5 V to 36 V, with a maximum absolute voltage of 42 V.
2. What is the maximum output current it can handle?
It can handle up to 2 A of output current.
3. Is the switching frequency adjustable?
Yes, the switching frequency is programmable from 200 kHz to 2.2 MHz.
4. What protection features are included?
It includes thermal shutdown, UVLO, cycle-by-cycle current limit, and output short-circuit protection.
5. What is the operating temperature range?
The operating temperature range is -40°C to +125°C.
6. What package does the LM43602PWP use?
It uses a 16-pin HTSSOP (PWP) package measuring 6.6 mm × 5.1 mm × 1.2 mm.
7. Is it suitable for automotive applications?
Yes, it meets AEC-Q100 standards, making it suitable for automotive applications.
8. Does it support light load efficiency improvements?
Yes, it uses discontinuous conduction mode (DCM) and automatic frequency modulation for improved light load efficiency.
9. Can it be synchronized with an external clock?
Yes, it supports synchronization with an external clock.
10. What is the typical efficiency of the LM43602PWP?
It offers high efficiency, especially at light loads, due to its advanced control mechanisms.
