Summary of LMR36015 – 4.2-V TO 60-V, 1.5-A ULTRA-SMALL SYNCHRONOUS STEP-DOWN CONVERTER
The LMR36015 is a synchronous step-down DC/DC converter delivering 1.5 A output across a 4.2 V to 60 V input range, with 66 V transient tolerance. It features peak-current-mode control, FPWM operation at 1 MHz, and a HotRod™ package for compactness. Integrated MOSFETs and protection mechanisms like thermal shutdown and cycle-by-cycle current limit ensure reliability in rugged industrial applications without needing external supervisors.
Parts used in the LMR36015 Project:
- LMR36015 regulator
- Integrated high-side power MOSFETs
- Integrated low-side power MOSFETs
- HotRod™ package
- Power-good flag
- Precision enable pin
The LMR36015 regulator is an easy-to-use, synchronous, step-down DC/DC converter. With integrated high-side and low-side power MOSFETs, up to 1.5 A of output current is delivered over a wide input voltage range of 4.2 V to 60 V. Tolerance goes up to 66 V. The transient tolerance reduces the necessary design effort to protect against overvoltages and meets the surge immunity requirements of IEC 61000-4-5.
The LMR36015 uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. Load transient performance is improved with FPWM feature in the 1-MHz regulator. Precision enable gives flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status eliminating the requirement for an external supervisor.
The LMR36015 is in a HotRod™ package which enables low noise, higher efficiency, and the smallest package to die ratio. The device requires few external components and has a pinout designed for simple PCB layout. The small solution size and feature set of the LMR36015 are designed to simplify implementation for a wide range of end equipment, including space critical applications of ultra-small field transmitters and vision sensors.
Features
- Designed for reliable and rugged applications
- Input transient protection up to 66 V
- Junction temperature range –40°C to +150°C
- Protection features: thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, hiccup short-circuit protection
- HotRod™ package enables low noise and minimized switch node ringing
- 0.4-V dropout with 1.5-A load (typical)
- Suited for scalable industrial power supplies
- Pin compatible With:
Read more: LMR36015 – 4.2-V TO 60-V, 1.5-A ULTRA-SMALL SYNCHRONOUS STEP-DOWN CONVERTER
- What is the maximum output current of the LMR36015?
The device delivers up to 1.5 A of output current. - How does the LMR36015 handle overvoltage protection?
It offers input transient protection up to 66 V and meets IEC 61000-4-5 surge immunity requirements. - Can the LMR36015 operate without an external supervisor?
Yes, the built-in filtering and delay on the power-good flag eliminate the need for an external supervisor. - What is the operating junction temperature range?
The junction temperature range is –40°C to +150°C. - Does the LMR36015 require many external components?
No, the device requires few external components and has a pinout designed for simple PCB layout. - What type of control mode does the LMR36015 use?
It uses peak-current-mode control to provide optimal efficiency and output voltage accuracy. - Is the LMR36015 suitable for space-critical applications?
Yes, its small solution size makes it ideal for ultra-small field transmitters and vision sensors. - What protection features are included in the LMR36015?
It includes thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection.
