Overview
The LMR16030SDDAR is a 60-V, 3-A SIMPLE SWITCHER® step-down regulator produced by Texas Instruments. This device is integrated with a high-side MOSFET and is designed for a wide range of applications, including industrial and automotive systems, due to its broad input voltage range of 4.3 V to 60 V. The regulator features a low quiescent current of 40 µA in sleep mode and an ultra-low 1-μA current in shutdown mode, making it suitable for battery-powered systems. The LMR16030SDDAR is available in an 8-pin HSOIC package with an exposed pad for low thermal resistance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.3 to 60 | V |
| Output Current | 3 | A |
| Switching Frequency Range | 200 kHz to 2.5 MHz | |
| Quiescent Current (Sleep Mode) | 40 | µA |
| Shutdown Current | 1 | µA |
| Package Type | 8-pin HSOIC | |
| Package Dimensions | 4.89 mm x 3.90 mm | |
| Duty Cycle | Up to 97% | % |
Key Features
- Integrated high-side MOSFET for simplified design and reduced component count.
- Wide input voltage range from 4.3 V to 60 V, making it versatile for various applications.
- Programmable switching frequency from 200 kHz to 2.5 MHz and synchronization to an external clock within the 250-kHz to 2.3-MHz range.
- Internal loop compensation, reducing the need for external components and simplifying the design process.
- Precision enable input for easy regulator control and system power sequencing.
- Adjustable soft-start time to manage inrush current and voltage overshoot.
- Built-in protection features including cycle-by-cycle current limit, thermal sensing, overtemperature shutdown, output overvoltage protection (OVP), and input undervoltage lockout (UVLO).
- Ultra-low quiescent current in sleep mode and shutdown mode to prolong battery life in battery-powered systems.
Applications
The LMR16030SDDAR is suitable for a variety of applications due to its wide input voltage range and high efficiency. Key applications include:
- Industrial power systems: For power conditioning from unregulated sources.
- Automotive systems: For reliable operation in harsh automotive environments.
- Battery-powered systems: Due to its low quiescent current in sleep and shutdown modes.
- General DC-DC conversion: For converting higher DC voltages to lower DC voltages efficiently.
Q & A
- What is the input voltage range of the LMR16030SDDAR?
The input voltage range is from 4.3 V to 60 V.
- What is the maximum output current of the LMR16030SDDAR?
The maximum output current is 3 A.
- What is the quiescent current in sleep mode?
The quiescent current in sleep mode is 40 µA.
- Can the switching frequency be programmed?
Yes, the switching frequency can be programmed from 200 kHz to 2.5 MHz.
- What are the built-in protection features of the LMR16030SDDAR?
The device includes cycle-by-cycle current limit, thermal sensing, overtemperature shutdown, output overvoltage protection (OVP), and input undervoltage lockout (UVLO).
- What is the package type and dimensions of the LMR16030SDDAR?
The package type is 8-pin HSOIC with dimensions of 4.89 mm x 3.90 mm.
- Is the LMR16030SDDAR suitable for battery-powered systems?
Yes, it is suitable due to its ultra-low quiescent current in sleep and shutdown modes.
- Can the LMR16030SDDAR be synchronized to an external clock?
Yes, it can be synchronized to an external clock within the 250-kHz to 2.3-MHz frequency range.
- What is the purpose of the internal loop compensation in the LMR16030SDDAR?
The internal loop compensation reduces the need for external components and simplifies the design process.
- How does the LMR16030SDDAR manage inrush current and voltage overshoot?
The device features adjustable soft-start time to manage inrush current and voltage overshoot.
