TPS54824RNVR

The TPS54824 is a full-featured 17V, 8A synchronous buck converter in a 3.5mm×3.5mm HotRod™ QFN package. The device is specifically optimized for high efficiency and integrates both high-side and low-side MOSFETs for compact solutions. It further saves space by employing peak current mode control — which reduces component count — and supporting high switching frequencies to minimize inductor size. Peak current mode control simplifies loop compensation and provides fast transient response. In the event of device overload, cycle-by-cycle peak current limiting for both high-side and low-side sink current limits protects the device. Hiccup mode limits MOSFET power dissipation when a short-circuit or overload fault persists. The power-good monitor circuit supervises the regulator output. The PGOOD pin is an open-drain output that goes high-impedance when the output voltage is in regulation. An internal blanking timer prevents the PGOOD pin from being pulled low unless a fault occurs. A dedicated EN pin controls regulator on/off and adjusts input undervoltage lockout. The output voltage startup ramp is controlled by the SS/TRK pin, which supports both standalone operation and tracking mode.

Applications

• Telecom and wireless infrastructure
• Industrial automation test equipment
• Enterprise switching and storage applications
• High-density distributed power systems

Key features

• Integrated 14.1mΩ and 6.1mΩ MOSFETs in a compact 3.5mm x 3.5mm HotRod™ QFN package
• Peak current mode control for fast transient response
• Fixed switching frequency 200kHz to 1.6MHz with external clock synchronization
• 0.6V voltage reference with ±0.85% accuracy over wide temperature range
• Output voltage range: 0.6V to 12V
• Discontinuous current limiting
• Safe start-up into pre-biased output voltage
• Adjustable soft-start and power sequencing
• Adjustable input undervoltage lockout
• 3μA shutdown current
• Power good output monitoring for undervoltage and overvoltage
• Output overvoltage protection
• Non-latching thermal shutdown protection
• Operating junction temperature range: -40°C to 150°C
• Supported by WEBENCH Design Center