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TPS543B25E

現行

具有擴展溫度的 4V 至 18V 輸入、25A 同步 SWIFT™ 降壓轉換器

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產品規格表

TPS543B25E

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck, Synchronous Buck Iout (max) (A) 25 Vin (max) (V) 18 Vin (min) (V) 4 Vout (max) (V) 7 Vout (min) (V) 0.5 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO adjustable Control mode ACM/AECM Operating temperature range (°C) -55 to 150 Iq (typ) (A) 0.0012 Duty cycle (max) (%) 94
Rating Catalog Topology Buck, Synchronous Buck Iout (max) (A) 25 Vin (max) (V) 18 Vin (min) (V) 4 Vout (max) (V) 7 Vout (min) (V) 0.5 Features Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO adjustable Control mode ACM/AECM Operating temperature range (°C) -55 to 150 Iq (typ) (A) 0.0012 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 25A and 20A operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • –55°C to 150°C operating junction temperature
  • 2.5mm × 4.5mm, 17-pin WQFN-FCRLF package with 0.5mm pitch
  • Lead-free (RoHS compliant)
  • Pin compatible with the 20A - TPS543B22, 16A - TPS543A26, and 12A - TPS543A22
  • SIMPLIS models available
  • Create a custom design using the TPS543B25E 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 25A and 20A operation
  • Enable with adjustable input undervoltage lockout
  • Power-good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • –55°C to 150°C operating junction temperature
  • 2.5mm × 4.5mm, 17-pin WQFN-FCRLF package with 0.5mm pitch
  • Lead-free (RoHS compliant)
  • Pin compatible with the 20A - TPS543B22, 16A - TPS543A26, and 12A - TPS543A22
  • SIMPLIS models available
  • Create a custom design using the TPS543B25E with the WEBENCH Power Designer

The TPS543B25E is a high-efficiency, 18V, 25A, synchronous buck converter. The device employs an internally compensated, fixed-frequency, ACM control architecture, which while always operating under forced continuous conduction mode (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 undervoltage lockout (UVLO) through the EN pin, and a full suite of fault protections.

The TPS543B25E is available in a small, 2.5mm × 4.5mm, HotRod™ WQFN-FCRLF package.

The TPS543B25E is a high-efficiency, 18V, 25A, synchronous buck converter. The device employs an internally compensated, fixed-frequency, ACM control architecture, which while always operating under forced continuous conduction mode (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 undervoltage lockout (UVLO) through the EN pin, and a full suite of fault protections.

The TPS543B25E is available in a small, 2.5mm × 4.5mm, HotRod™ WQFN-FCRLF package.
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* Data sheet TPS543B25E 4V to 18V Input, 25 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control datasheet PDF | HTML 2025年 7月 30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 SIMPLIS Transient and Average Model (Rev. A)

SLVMDY4A.ZIP (928 KB) - SIMPLIS Model
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WQFN-FCRLF (RYS) 17 Ultra Librarian
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