Overview
The TPS54616PWPG4 is a 3-V to 6-V input, 6-A output synchronous buck PWM switcher produced by Texas Instruments. This device is part of the TPS5461x family and is designed for high-performance power supply applications. It integrates all required active components, including high-performance voltage error amplifiers, an under-voltage-lockout circuit, and internally and externally set slow-start circuits. The device is packaged in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which helps reduce board area and total cost by eliminating the need for bulky heatsinks.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 3.0 | 6.0 | V | |
| Output Voltage | 3 V ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 6 A, −40°C ≤ TJ ≤ 125°C | 3.3 - 3.3 | 3.3 | 3.3 + 3.0% | V |
| Output Current | 6 | A | |||
| PWM Frequency | 280 kHz | 350 kHz / 550 kHz | 700 kHz | kHz | |
| Quiescent Current | fs = 350 kHz, FSEL ≤0.8 V, RT open, phase pin open | 6.2 | 9.6 | mA | |
| Current Limit | VI = 3 V | 7.2 | 10 | A | |
| Thermal Shutdown Trip Point | 135 | 150 | 165 | °C | |
| Power MOSFET Switches rDS(on) | IO = 3 A, VI = 6 V | 26 | 47 | mΩ |
Key Features
- Fixed output voltage options: 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V with 1.0% initial accuracy.
- Internally compensated for easy use and minimal component count.
- Fast transient response and wide PWM frequency range (fixed 350 kHz, 550 kHz or adjustable 280 kHz to 700 kHz).
- Load protected by peak current limit and thermal shutdown.
- Integrated bootstrap switch and powergood output for processor/logic reset, fault signaling, and supply sequencing.
- Slow-start and enable pin for controlling startup and shutdown.
- Adaptive dead-time control to prevent shoot-through current.
Applications
- Low-voltage, high-density systems with power distributed at 5 V or 3.3 V.
- Point of load regulation for high-performance DSPs, FPGAs, ASICs, and microprocessors.
- Broadband, networking, and optical communications infrastructure.
- Portable computing and notebook PCs.
Q & A
- What is the input voltage range of the TPS54616PWPG4?
The input voltage range is from 3 V to 6 V. - What is the maximum output current of the TPS54616PWPG4?
The maximum output current is 6 A. - What are the available PWM frequency options for the TPS54616PWPG4?
The PWM frequency can be fixed at 350 kHz or 550 kHz, or adjustable from 280 kHz to 700 kHz. - How is the output voltage accuracy of the TPS54616PWPG4?
The output voltage accuracy is 1.0% initial accuracy. - What protection features does the TPS54616PWPG4 have?
The device is protected by peak current limit and thermal shutdown. - What is the purpose of the slow-start and enable pin?
The slow-start and enable pin controls the startup and shutdown of the device and provides a slow-start function to limit in-rush currents. - How does the adaptive dead-time control work in the TPS54616PWPG4?
The adaptive dead-time control prevents shoot-through current by actively controlling the turn-on times of the MOSFET drivers. - What is the thermal shutdown trip point of the TPS54616PWPG4?
The thermal shutdown trip point is between 135°C and 165°C. - What is the recommended package for the TPS54616PWPG4?
The device is packaged in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package. - What are some typical applications of the TPS54616PWPG4?
Typical applications include low-voltage, high-density systems, point of load regulation for high-performance devices, broadband and networking infrastructure, and portable computing.
