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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS543B22

現行

4 V 至 18 V 輸入、進階電流模式、20-A 同步 SWIFT™ 降壓轉換器

立即訂購
產品規格表

TPS543B22

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 20 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) (µA) 1200 Duty cycle (max) (%) 94
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 20 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) (µA) 1200 Duty cycle (max) (%) 94
WQFN-FCRLF (RYS) 17 11.25 mm² 4.5 x 2.5
  • Fixed-frequency, internally compensated, advanced current mode (ACM) control
  • Integrated 6.5mΩ and 2mΩ MOSFETs
  • 4V to 18V input voltage range
  • 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 20A and 16A 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)
  • Pin compatible with the TPS543A26 and TPS543A22
  • Available in thermally enhanced package TPS543B25T (drop-in compatible)
  • SIMPLIS models available
  • Create a custom design using the TPS543B22 with the WEBENCH® Power Designer
  • Fixed-frequency, internally compensated, advanced current mode (ACM) control
  • Integrated 6.5mΩ and 2mΩ MOSFETs
  • 4V to 18V input voltage range
  • 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 20A and 16A 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)
  • Pin compatible with the TPS543A26 and TPS543A22
  • Available in thermally enhanced package TPS543B25T (drop-in compatible)
  • SIMPLIS models available
  • Create a custom design using the TPS543B22 with the WEBENCH® Power Designer

The TPS543B22 is a high-efficiency 18V, 20A 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 solution 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 TPS543B22 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.

The TPS543B22 is a high-efficiency 18V, 20A 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 solution 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 TPS543B22 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.
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TPS543A22 現行 4-V 至 18-V 輸入、進階電流模式、12-A 同步 SWIFT™ 降壓轉換器 Lower current (12A) version
TPS543A26 現行 4-V 至 18-V 輸入、進階電流模式、16-A 同步 SWIFT™ 降壓轉換器 Lower current (16A) version
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 Higher current (25A) version
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TPSM843B22 現行 4-V 至 18-V 輸入、進階電流模式、20-A 同步 SWIFT™ 降壓電源模組 Power module version with integrated inductor

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類型 標題 日期
* Data sheet TPS543B22 4V to 18V Input, 20 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control datasheet (Rev. B) PDF | HTML 2024年 2月 15日
EVM User's guide TPS543B22EVM SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. B) PDF | HTML 2023年 9月 6日
Analog Design Journal 使用第二級濾波器來減少電壓漣波 PDF | HTML 2023年 5月 3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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模擬型號

TPS543B22 PSpice Transient Model (Rev. A)

SLVME33A.ZIP (240 KB) - PSpice Model
下載
模擬型號

TPS543B22 SIMPLIS Transient and Average Model (Rev. A)

SLVMDY4A.ZIP (928 KB) - SIMPLIS Model
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN-FCRLF (RYS) 17 Ultra Librarian
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