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TPS543B25T

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具熱增強型封裝的 4-V 至 18-V 輸入、25-A 同步 SWIFT™ 降壓轉換器

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TPS543B25T

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Rating Catalog Operating temperature range (°C) -40 to 150 Type Converter Iout (max) (A) 25 Vin (min) (V) 4 Vin (max) (V) 18 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode ACM/AECM Vout (min) (V) 0.5 Vout (max) (V) 7 Iq (typ) (A) 0.0012
Rating Catalog Operating temperature range (°C) -40 to 150 Type Converter Iout (max) (A) 25 Vin (min) (V) 4 Vin (max) (V) 18 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Control mode ACM/AECM Vout (min) (V) 0.5 Vout (max) (V) 7 Iq (typ) (A) 0.0012
WQFN-FCRLF (RAS) 17 11.25 mm² 4.5 x 2.5
  • Integrated 6.5mΩ and 2mΩ MOSFETs
  • 4V to 18V input voltage range
  • Fixed-frequency, internally compensated, advanced current mode (ACM) control
  • 0.5V to 7V output voltage range
  • True differential remote sense amplifier (RSA)
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHz
  • Synchronizable to an external clock
  • 0.5V, ±0.5% voltage reference accuracy over full temperature range
  • 1ms, 2ms, 4ms, and 8ms selectable soft-start times
  • Monotonic start-up into prebiased outputs
  • Selectable current limits to support 25A and 20A operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • –40°C to 150°C operating junction temperature
  • 2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitch
  • Lead-free (RoHS compliant), Lead-free (Pb-free) conversion
  • Pin compatible with the 20A - TPS543B22, 16A - TPS543A26, and 12A - TPS543A22
  • Create a custom design using the TPS543B25T with the WEBENCH Power Designer
  • Integrated 6.5mΩ and 2mΩ MOSFETs
  • 4V to 18V input voltage range
  • Fixed-frequency, internally compensated, advanced current mode (ACM) control
  • 0.5V to 7V output voltage range
  • True differential remote sense amplifier (RSA)
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHz
  • Synchronizable to an external clock
  • 0.5V, ±0.5% voltage reference accuracy over full temperature range
  • 1ms, 2ms, 4ms, and 8ms selectable soft-start times
  • Monotonic start-up into prebiased outputs
  • Selectable current limits to support 25A and 20A operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • –40°C to 150°C operating junction temperature
  • 2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitch
  • Lead-free (RoHS compliant), Lead-free (Pb-free) conversion
  • Pin compatible with the 20A - TPS543B22, 16A - TPS543A26, and 12A - TPS543A22
  • Create a custom design using the TPS543B25T with the WEBENCH Power Designer

The TPS543B25T is a high-efficiency, 18V, 25A, synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small design size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.

The TPS543B25T is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.

The TPS543B25T is a high-efficiency, 18V, 25A, synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under FCCM, generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small design size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.

The TPS543B25T is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.
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最新 TPS543B25 現行 4-V 至 18-V 輸入、進階電流模式、25-A 同步 SWIFT™ 降壓轉換器 Standard package version

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類型 標題 日期
* Data sheet TPS543B25T 4V to 18V Input, 25 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control in Thermally Enhanced Package datasheet (Rev. A) PDF | HTML 2024年 4月 4日
Certificate TPS543B25TEVM EU Declaration of Conformity (DoC) 2023年 10月 6日

設計與開發

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開發板

TPS543B22EVM — TPS543B22 同步降壓轉換器評估模組

TPS543B22 評估模組 (EVM) 是一款同步降壓轉換器，其整合兩個功率 MOSFET 與低漏源電阻，可將解決方案尺寸降至最低，並在滿載時提供高效率。TPS543B22EVM 採用固定頻率的先進電流模式控制，並針對高切換頻率採用短最小開啟時間，以最小化解決方案尺寸，實現快速瞬態回應。
使用指南: PDF | HTML
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開發板

TPS543B25TEVM — 適用於同步 SWIFT™ 降壓轉換器的 TPS543B25T 評估模組

TPS543B25TEVM 是適用於 TPS543B25T 積體電路 (IC) 的評估模組 (EVM)。TPS543B25T 是採用熱增強型封裝 (TEP) 的同步降壓式轉換器，其移除了標準過壓成型 IC 的頂部模封材料，以提升搭配散熱器使用時的熱性能。此 EVM 具備小巧外部零組件和兩個螺紋孔，可用來在轉換器頂部安裝任何散熱器。TPS543B25TEVM 會將其外露式裸晶封裝搭配任何安裝的散熱器使用，以將晶粒溫度降至最低、減少熱降額並提升系統效率，特別是在高溫環境下。不包括散熱器。
使用指南: PDF | HTML
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模擬型號

TPS543B22 SIMPLIS Transient and Average Model (Rev. A)

SLVMDY4A.ZIP (928 KB) - SIMPLIS Model
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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