Overview
The MAX15462 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs, designed by Analog Devices Inc./Maxim Integrated. This converter operates over a wide input voltage range of 4.5V to 42V and delivers output currents up to 300mA. It is available in fixed output voltage options of 3.3V and 5V, as well as an adjustable output voltage option ranging from 0.9V to 0.89 x VIN. The device is packaged in a compact 8-pin (2mm x 2mm) TDFN package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Input Voltage Range | 4.5 | - | 42 | V |
| Output Voltage Options | 3.3V, 5V, Adjustable (0.9V to 0.89 x VIN) | - | - | V |
| Output Current | - | - | 300 | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Junction Temperature Range | -40 | - | 150 | °C |
| Switching Frequency | 465 | 500 | 535 | kHz |
| Peak Current-Limit Threshold | 0.49 | 0.56 | 0.62 | A |
Key Features
- High-efficiency synchronous step-down DC-DC conversion
- Integrated MOSFETs for reduced external component count
- Peak-current-mode control architecture with PWM and PFM operation modes
- Hiccup-mode current limit and autoretry startup
- Built-in output voltage monitoring with open-drain RESET pin
- Programmable EN/UVLO threshold
- Monotonic startup into prebiased output
- Overtemperature protection
Applications
- Industrial control systems
- Automotive systems
- Medical devices
- Consumer electronics requiring high-efficiency power conversion
- IoT devices with stringent power requirements
Q & A
- What is the input voltage range of the MAX15462?
The input voltage range of the MAX15462 is 4.5V to 42V. - What are the available output voltage options for the MAX15462?
The MAX15462 offers fixed output voltages of 3.3V and 5V, as well as an adjustable output voltage option ranging from 0.9V to 0.89 x VIN. - What is the maximum output current of the MAX15462?
The MAX15462 can deliver up to 300mA of output current. - What is the operating temperature range of the MAX15462?
The operating temperature range of the MAX15462 is -40°C to +125°C. - Does the MAX15462 have built-in overtemperature protection?
Yes, the MAX15462 includes overtemperature protection. - What are the control modes available for the MAX15462?
The MAX15462 can operate in both pulse-width modulation (PWM) and pulse-frequency modulation (PFM) control schemes. - What is the package type and size of the MAX15462?
The MAX15462 is packaged in a compact 8-pin (2mm x 2mm) TDFN package. - Does the MAX15462 have a programmable EN/UVLO threshold?
Yes, the MAX15462 allows for programmable EN/UVLO threshold. - What is the switching frequency range of the MAX15462?
The switching frequency range of the MAX15462 is 465 kHz to 535 kHz. - Does the MAX15462 support monotonic startup into prebiased output?
Yes, the MAX15462 supports monotonic startup into prebiased output.
