首頁 電源管理 AC/DC & DC/DC controllers (external FET)
首頁
電源管理
AC/DC & DC/DC controllers (external FET)

TPS51123

現行

4.5-V 至 28-V 雙通道同步降壓控制器，低待機電流消耗，Out-of-Audio™

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相似於所比較的產品
TPS51397A 現行 4.5-V 至 24-V 輸入、10-A 同步降壓穩壓器 Offers a lower IQ and is soft start adjustable with an extended positive operating temperature range in a smaller package.

TPS51123

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 5.5 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode D-CAP Rating Catalog Vout (min) (V) 2 Vout (max) (V) 5.5 Iq (typ) (A) 0.00055 Duty cycle (max) (%) 93 Number of phases 1
Vin (min) (V) 5.5 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode D-CAP Rating Catalog Vout (min) (V) 2 Vout (max) (V) 5.5 Iq (typ) (A) 0.00055 Duty cycle (max) (%) 93 Number of phases 1
VQFN (RGE) 24 16 mm² 4 x 4
  • Wide-Input Voltage Range: 5.5 V to 28 V
  • Output Voltage Range: 2 V to 5.5 V
  • Built-in 100-mA 5-V/3.3-V LDO with Switches
  • Built-in 1% 2-V Reference Output
  • With/Without Out-of-Audio™ Mode Selectable
    Light-Load and PWM only Operation
  • Internal 1.6-ms Voltage Servo Softstart
  • Adaptive On-Time Control Architecture with Four
    Selectable Frequency Setting
  • 4500 ppm/°C RDS(on) Current Sensing
  • Built-In Output Discharge
  • Power Good Output
  • Built-in OVP/UVP/OCP
  • Thermal Shutdown (Non-latch)
  • 24-Pin QFN (RGE) Package
  • Wide-Input Voltage Range: 5.5 V to 28 V
  • Output Voltage Range: 2 V to 5.5 V
  • Built-in 100-mA 5-V/3.3-V LDO with Switches
  • Built-in 1% 2-V Reference Output
  • With/Without Out-of-Audio™ Mode Selectable
    Light-Load and PWM only Operation
  • Internal 1.6-ms Voltage Servo Softstart
  • Adaptive On-Time Control Architecture with Four
    Selectable Frequency Setting
  • 4500 ppm/°C RDS(on) Current Sensing
  • Built-In Output Discharge
  • Power Good Output
  • Built-in OVP/UVP/OCP
  • Thermal Shutdown (Non-latch)
  • 24-Pin QFN (RGE) Package

The TPS51123 is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The TPS51123 supports high efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51123 is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.

The TPS51123 is a cost effective, dual-synchronous buck controller targeted for notebook system power supply solutions. It provides 5-V and 3.3-V LDOs and requires few external components. The TPS51123 supports high efficiency, fast transient responses and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51123 is available in a 24-pin QFN package and is specified from -40°C to 85°C ambient temperature range.
open-in-new 尋找其它 AC/DC & DC/DC controllers (external FET)
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 3
類型 標題 日期
* Data sheet Dual-Synchronous, Step-Down Controller with Out-of-Audio™ Operation and 100-mA datasheet (Rev. E) 2013年 2月 15日
User guide TPS51123 Buck Controller Evaluation Module User's Guide (Rev. A) PDF | HTML 2022年 1月 31日
Application note Intel Core i3, i5, i7 [Arrandale] Reference Design 2010年 7月 21日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

TPS51123 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM279A.ZIP (52 KB) - PSpice Model
下載
封裝 引腳 下載
VQFN (RGE) 24 檢視選項
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片