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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS53511

現行

具整合式 MOSFET 的 1.5A 降壓穩壓器

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TPS562211 現行 採用 SOT583，具 1% 準確度、PG/SS 和 PFM/強制 PWM 的 4.2-V 至 18-V、2-A、同步降壓轉換器 Higher efficiency with lower external component count in a smaller package.

TPS53511

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5 Vout (min) (V) 0.75 Features Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification Control mode D-CAP2 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 1300 Duty cycle (max) (%) 95 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 18 Vin (min) (V) 4.5 Vout (max) (V) 5 Vout (min) (V) 0.75 Features Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification Control mode D-CAP2 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Operating temperature range (°C) -40 to 85 Iq (typ) (µA) 1300 Duty cycle (max) (%) 95 Type Converter
VQFN (RGT) 16 9 mm² 3 x 3
  • Continuous 1.5-A output current
  • 4.5-V to 18-V supply voltage range
  • 2-V to 18-V conversion voltage range
  • DCAP2™ mode control enables fast transient response
  • Low output ripple and support all MLCC output capacitor
  • Skip mode for light load control
  • Highly efficient integrated FETs optimized for lower duty cycle applications
  • High efficiency, less than 10-µA supply current at shutdown
  • Adjustable soft-start time
  • Support pre-biased soft start
  • 700-kHz switching frequency
  • Cycle-by-cycle overcurrent limit
  • Open-drain power-good indication
  • Internal bootstrap switch
  • Small 3-mm × 3-mm, 16-pin QFN (RGT) package
  • Continuous 1.5-A output current
  • 4.5-V to 18-V supply voltage range
  • 2-V to 18-V conversion voltage range
  • DCAP2™ mode control enables fast transient response
  • Low output ripple and support all MLCC output capacitor
  • Skip mode for light load control
  • Highly efficient integrated FETs optimized for lower duty cycle applications
  • High efficiency, less than 10-µA supply current at shutdown
  • Adjustable soft-start time
  • Support pre-biased soft start
  • 700-kHz switching frequency
  • Cycle-by-cycle overcurrent limit
  • Open-drain power-good indication
  • Internal bootstrap switch
  • Small 3-mm × 3-mm, 16-pin QFN (RGT) package

The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.

The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.

The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.

The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.
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功能與所比較的裝置相似
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TPS562242 現行 採用 SOT563 的 3-V 至 17-V 輸入電壓、2-A、1.4-MHz 同步降壓轉換器 This product has a smaller package with 1.2MHz switching frequency

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類型 標題 日期
* Data sheet 4.5-V to 18-V Input, 1.5-A Step-Down Regulator with Integrated Switcher datasheet (Rev. B) PDF | HTML 2021年 8月 17日
Technical article 如何閉鎖具有打嗝模式故障回應的電源轉換器 PDF | HTML 2024年 3月 14日
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 2017年 1月 25日

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模擬型號

TPS53511 TINA-TI Transient Reference Design

SLUM394.TSC (197 KB) - TINA-TI Reference Design
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模擬型號

TPS53511 TINA-TI Transient Spice Model

SLUM393.ZIP (44 KB) - TINA-TI Spice Model
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模擬型號

TPS53511 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM380A.ZIP (319 KB) - PSpice Model
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VQFN (RGT) 16 Ultra Librarian
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