TPS54824RNVR

TPS54824RNVR 4.5-V to 17-V, 8-A Synchronous Step-Down SWIFT™ Buck Converter

TPS54824RNVR Product Overview

The TPS54824RNVR is a full-featured 17-V (19-V maximum), 8-A synchronous step-down DC/DC converter from Texas Instruments, housed in a compact 3.5 mm × 3.5 mm HotRod™ QFN package. The device integrates high-side and low-side MOSFETs (14.1-mΩ and 6.1-mΩ respectively) and is optimized for small solution size through high efficiency and space-saving design.

The TPS54824RNVR employs peak current mode control with fast transient response, which simplifies loop compensation and reduces external component count. The switching frequency is adjustable from 200 kHz to 1.6 MHz and can be synchronized to an external clock, enabling designers to optimize for efficiency or solution size. The device supports a 0.6-V to 12-V adjustable output voltage range with a 0.6-V voltage reference accurate to ±0.85% over temperature.

TPS54824RNVR Key Specifications

Input voltage range: 4.5 V to 17 V (19 V maximum)
Output voltage range: 0.6 V to 12 V (adjustable)
Maximum output current: 8 A
Switching frequency: 200 kHz to 1.6 MHz (adjustable, synchronizable to external clock)
Voltage reference accuracy: ±0.85% over temperature
High-side MOSFET: 14.1-mΩ
Low-side MOSFET: 6.1-mΩ
Shutdown current: 3 µA
Operating junction temperature: -40°C to +150°C
Package: 18-pin VQFN-HR (HotRod™ QFN), 3.5 mm × 3.5 mm
Mounting type: Surface mount
Package quantity: 3,000 per reel (Tape & Reel)
RoHS: Compliant
Product status: Active

TPS54824RNVR Key Advantages

The TPS54824RNVR features a compact 3.5 mm × 3.5 mm HotRod™ QFN package that minimizes PCB footprint while delivering up to 8 A of continuous output current. The integrated 14.1-mΩ and 6.1-mΩ MOSFETs reduce power loss and simplify design by eliminating external switching transistors.

Peak current mode control provides fast transient response to line and load variations, while the adjustable switching frequency (200 kHz to 1.6 MHz) allows designers to optimize between efficiency and solution size. The device can synchronize to an external clock via the RT/CLK pin, enabling precise frequency control in noise-sensitive applications.

Comprehensive protection features ensure robust system reliability: cycle-by-cycle peak current limiting on both high-side and low-side MOSFETs, hiccup current limit for short-circuit protection, safe start-up into pre-biased outputs, adjustable soft-start and power sequencing, power good output monitor with undervoltage and overvoltage detection, output overvoltage protection, non-latch thermal shutdown protection, and adjustable input undervoltage lockout. The 3-µA shutdown current significantly extends battery life in portable and standby applications. The -40°C to +150°C operating junction temperature range supports demanding automotive and industrial environments.

TPS54824RNVR Typical Applications

Point-of-load (POL) converters for FPGAs, CPUs, ASICs, and other digital components
Telecom and wireless infrastructure equipment
Server power supplies and enterprise switching
Industrial automation and control systems
Test and measurement equipment
Medical imaging equipment
Distributed power systems

TPS54824RNVR Why Choose the TPS54824RNVR?

The TPS54824RNVR combines a 4.5-V to 17-V input range, 8-A output capability, adjustable 200-kHz to 1.6-MHz switching frequency, and a compact 3.5 mm × 3.5 mm HotRod™ QFN package in a single, highly integrated device. Manufactured by Texas Instruments, a global leader in power management semiconductors, it delivers reliable, efficient step-down conversion for demanding industrial, telecommunications, and automotive applications.

The peak current mode control architecture provides fast transient response and simplifies compensation design, reducing development time. The adjustable switching frequency and external synchronization capability offer design flexibility for noise-sensitive or efficiency-critical systems. Comprehensive protection features (cycle-by-cycle current limit, hiccup mode, thermal shutdown, power good monitoring, and pre-biased start-up) ensure robust operation under fault conditions. The wide -40°C to +150°C junction temperature range makes this device suitable for automotive-grade and high-temperature industrial environments. The product is active and available for new designs with a standard lead time of 16 weeks.