首頁 電源管理 DC/DC 切換穩壓器 DC/DC 轉換器
首頁
電源管理
DC/DC 切換穩壓器
DC/DC 轉換器

LM2653

現行

1.5A 高效率同步切換穩壓器

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。
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.

LM2653

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) 14 Vin (min) (V) 4 Vout (max) (V) 5 Vout (min) (V) 1.5 Features Power good Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0017 Duty cycle (max) (%) 95
Rating Catalog Topology Buck Iout (max) (A) 1.5 Vin (max) (V) 14 Vin (min) (V) 4 Vout (max) (V) 5 Vout (min) (V) 1.5 Features Power good Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0017 Duty cycle (max) (%) 95
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Efficiency up to 97%
  • 4V to 14V Input Voltage Range
  • 1.5V to 5.0V Adjustable Output Voltage
  • 0.1Ω Switch On Resistance
  • 300 kHz Fixed Frequency Internal Oscillator
  • 7 μA Shutdown Current
  • Patented Current Sensing for Current Mode Control
  • Input Undervoltage Lockout
  • Output Overvoltage Shutdown Protection
  • Output Undervoltage Shutdown Protection
  • Adjustable Soft-Start
  • Adjustable PGOOD Delay
  • Current Limit and Thermal Shutdown

All trademarks are the property of their respective owners.

  • Efficiency up to 97%
  • 4V to 14V Input Voltage Range
  • 1.5V to 5.0V Adjustable Output Voltage
  • 0.1Ω Switch On Resistance
  • 300 kHz Fixed Frequency Internal Oscillator
  • 7 μA Shutdown Current
  • Patented Current Sensing for Current Mode Control
  • Input Undervoltage Lockout
  • Output Overvoltage Shutdown Protection
  • Output Undervoltage Shutdown Protection
  • Adjustable Soft-Start
  • Adjustable PGOOD Delay
  • Current Limit and Thermal Shutdown

All trademarks are the property of their respective owners.

The LM2653 switching regulator provides high efficient power conversion over a 100:1 load range (1.5A to 15 mA). This feature makes the LM2653 an ideal fit in battery-powered applications.

Synchronous rectification is used to achieve up to 97% efficiency. At light loads, the LM2653 enters a low power hysteretic or “sleep” mode to keep the efficiency high. In many applications, the efficiency still exceeds 80% at 15 mA load. A shutdown pin is available to disable the LM2653 and reduce the supply current to 7µA.

All the power, control, and drive functions are integrated within the ICs. The ICs contain patented current sensing circuity for current mode control. This feature eliminates the external current sensing resistor required by other current-mode DC-DC converters.

The ICs have a 300 kHz fixed frequency internal oscillator. The high oscillator frequency allows the use of extremely small, low profile components.

Protection features include thermal shutdown, input undervoltage lockout, adjustable soft-start, cycle by cycle current limit, output overvoltage and undervoltage protections.

The LM2653 switching regulator provides high efficient power conversion over a 100:1 load range (1.5A to 15 mA). This feature makes the LM2653 an ideal fit in battery-powered applications.

Synchronous rectification is used to achieve up to 97% efficiency. At light loads, the LM2653 enters a low power hysteretic or “sleep” mode to keep the efficiency high. In many applications, the efficiency still exceeds 80% at 15 mA load. A shutdown pin is available to disable the LM2653 and reduce the supply current to 7µA.

All the power, control, and drive functions are integrated within the ICs. The ICs contain patented current sensing circuity for current mode control. This feature eliminates the external current sensing resistor required by other current-mode DC-DC converters.

The ICs have a 300 kHz fixed frequency internal oscillator. The high oscillator frequency allows the use of extremely small, low profile components.

Protection features include thermal shutdown, input undervoltage lockout, adjustable soft-start, cycle by cycle current limit, output overvoltage and undervoltage protections.

filter 尋找其它 DC/DC 轉換器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 2
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM2653 1.5A High Efficiency Synchronous Switching Regulator datasheet (Rev. E) 2013/4/3
使用指南 LM2653 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 2021/12/20

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)。

封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 16 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

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