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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS543820

現行

4-V 至 18-V、8-A 同步降壓 SWIFT™ 降壓轉換器

立即訂購
產品規格表

TPS543820

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) 8 Vin (min) (V) 4 Vin (max) (V) 18 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable EMI features Low parasitic Hotrod packaging 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) 8 Vin (min) (V) 4 Vin (max) (V) 18 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 2200 Features Adjustable current limit, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable EMI features Low parasitic Hotrod packaging Control mode ACM/AECM Vout (min) (V) 0.5 Vout (max) (V) 7 Iq (typ) (µA) 1200 Duty cycle (max) (%) 94
VQFN-HR (RPY) 14 7.5 mm² 2.5 x 3
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Integrated 25-mΩ and 6.5-mΩ MOSFETs
  • Input voltage range: 4 V to 18 V
  • Output voltage range: 0.5 V to 7 V
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
  • Synchronizable to an external clock
  • 0.5-V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
  • Monotonic start-up into pre-biased outputs
  • Selectable current limits to support 8-A and 6-A operation
  • Enable with adjustable input undervoltage lockout
  • Power good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • Pin-to-pin compatible with TPS543620 and TPS543320
  • –40°C to 150°C operating junction temperature
  • 2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch
  • Fixed-frequency, internally-compensated advanced current mode (ACM) control
  • Integrated 25-mΩ and 6.5-mΩ MOSFETs
  • Input voltage range: 4 V to 18 V
  • Output voltage range: 0.5 V to 7 V
  • Three selectable PWM ramp options to optimize the control loop performance
  • Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
  • Synchronizable to an external clock
  • 0.5-V, ±0.5% voltage reference accuracy over full temperature range
  • Selectable soft start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
  • Monotonic start-up into pre-biased outputs
  • Selectable current limits to support 8-A and 6-A operation
  • Enable with adjustable input undervoltage lockout
  • Power good output monitor
  • Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
  • Pin-to-pin compatible with TPS543620 and TPS543320
  • –40°C to 150°C operating junction temperature
  • 2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch

The TPS543820 is a high-efficiency 18-V, 8-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. It is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which when coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.

The TPS543820 is a high-efficiency 18-V, 8-A synchronous buck converter employing an internally-compensated, fixed-frequency Advanced Current Mode control. It is capable of providing high efficiency while running at a switching frequency up to 2.2 MHz. The device is in a small 2.5-mm × 3-mm HotRod™ VQFN package, which when coupled with high efficiency at high frequency, makes it optimal for designs requiring a small solution size. The fixed frequency controller can operate from 500 kHz to 2.2 MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, selectable soft start times, montonic start-up into pre-biased outputs, selectable current limits, adjustable UVLO through the EN pin, and a full suite of fault protections.
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類型 標題 日期
* Data sheet TPS543820 4-V to 18-V Input, 8-A Synchronous SWIFT™ Step-Down Converter with Internally Compensated Advanced Current Mode Control datasheet (Rev. B) PDF | HTML 2021年 6月 29日
Application note Optimizing EMI Performance in Buck Regulators for Medical Imaging Applications PDF | HTML 2024年 8月 13日
Application note Synchronization to a Clock Signal Using AC Coupling PDF | HTML 2024年 8月 7日
More literature Low-Noise and Low-Ripple Techniques for a Supply Without an LDO (Rev. B) PDF | HTML 2024年 4月 18日
Application note Detailed Comparison Between TPSM843620 Family and TPS543620 Family PDF | HTML 2023年 11月 20日
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 2023年 10月 31日
More literature Low-noise and low-ripple techniques for a supply without an LDO PPT 2021年 12月 2日
EVM User's guide TPS543820EVM SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 4月 28日
Certificate TPS543820EVM EU RoHS Declaration of Conformity (DoC) 2020年 12月 17日

設計與開發

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開發板

TPS543820EVM — TPS543820 同步降壓轉換器評估模組

TPS543820EVM 是 TPS543820 的評估模組 (EVM)。TPS543820 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。TPS543820 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
TI.com 無法提供
模擬型號

TPS543820 PSpice Transient Model (Rev. A)

SLUM789A.ZIP (345 KB) - PSpice Model
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模擬型號

TPS543820 SIMPLIS Transient and Average Model

SLUM768.ZIP (946 KB) - SIMPLIS Model
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計算工具

SLURAZ9 — TPS543320 TPS543620 TPS543820 Calculator Tool and Schematic Checklist

支援產品和硬體

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產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
TPS543320 — 4-V 至 18-V、3-A 同步降壓 SWIFT™ 轉換器 TPS543620 — 4-V 至 18-V 輸入、進階電流模式、6-A 同步 SWIFT™ 降壓轉換器 TPS543820 — 4-V 至 18-V、8-A 同步降壓 SWIFT™ 降壓轉換器 TPS543820E — 4-V 至 18-V、8-A 同步降壓轉換器延伸溫度
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VQFN-HR (RPY) 14 Ultra Librarian
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