Overview
The LMR33620BDDA is a highly integrated, easy-to-use synchronous step-down DC/DC converter developed by Texas Instruments. This device is part of the SIMPLE SWITCHER family and is designed to deliver best-in-class efficiency for rugged industrial applications. It drives up to 2 A of load current from an input voltage range of 3.8 V to 36 V, providing high light load efficiency and output accuracy in a compact solution size. The LMR33620BDDA features a power-good flag and precision enable, making it flexible and easy to use in a wide range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 8-pin HSOIC (DDA) |
| Operating Temperature Range (°C) | -40 to 125 |
| Input Voltage Range | 3.8 V to 36 V |
| Output Voltage Range | 1 V to 24 V |
| Output Current | Up to 2 A |
| Control Mode | Peak-current-mode control |
| Minimum On-Time | 68 ns |
| Switching Frequency | 400 kHz, 1.4 MHz, 2.1 MHz |
| Junction Temperature Range (°C) | -40 to +125 |
| Quiescent Current | Typically 25 µA |
| Efficiency | Peak efficiency > 95% |
Key Features
- Functional Safety-Capable
- Configured for rugged industrial applications
- Low EMI and low switching noise
- Integrated compensation network
- HotRod™ package
- Parallel input current paths
- High power conversion at all loads
- Flexible system interface
- Power-good flag and precision enable
- Thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection
- Automatically folds back frequency at light load to improve efficiency
Applications
- Portable Battery-Powered Equipment
- Automotive Systems
- Networking Equipment
- Consumer Electronics
- Industrial Automation
- Communication Systems
- Point of Load (POL) Converters
- LED Drivers
- Telecommunication Infrastructure
Q & A
- What is the maximum output voltage for the LMR33620BDDA?
The LMR33620BDDA can provide an adjustable output voltage ranging from 1 V up to 24 V.
- What types of applications are suitable for the LMR33620BDDA?
This device is suitable for a broad range of applications, including battery-powered equipment, automotive systems, and industrial automation.
- How does the LMR33620BDDA ensure efficiency?
The LMR33620BDDA achieves high efficiency through synchronous rectification, advanced PWM control, and integrated features that minimize losses during operation.
- Can the LMR33620BDDA handle high input voltages?
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- What is the quiescent current of the LMR33620BDDA?
The quiescent current of the LMR33620BDDA is typically 25 µA.
- What are the available package options for the LMR33620BDDA?
The LMR33620BDDA is available in an 8-pin HSOIC package and a 12-pin 3 mm × 2 mm next generation VQFN package with wettable flanks.
- Does the LMR33620BDDA support functional safety?
- How does the LMR33620BDDA manage light load conditions?
The LMR33620BDDA automatically folds back frequency at light load to improve efficiency.
- What tools can be used to design with the LMR33620BDDA?
You can use the WEBENCH Power Designer to create a custom design with the LMR33620BDDA, or the TPSM53602 module for faster time to market.
