首頁 電源管理 AC/DC & DC/DC converters (integrated FET)
首頁
電源管理
AC/DC & DC/DC converters (integrated FET)

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

Iout (max) (A) 1.5 Vin (min) (V) 4 Vin (max) (V) 14 Topology Buck Type Converter Switching frequency (min) (kHz) 255 Switching frequency (max) (kHz) 345 Features Power good Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 5 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0017
Iout (max) (A) 1.5 Vin (min) (V) 4 Vin (max) (V) 14 Topology Buck Type Converter Switching frequency (min) (kHz) 255 Switching frequency (max) (kHz) 345 Features Power good Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 5 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0017
TSSOP (PW) 16 32 mm² 5 x 6.4
  • 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.

open-in-new 尋找其它 AC/DC & DC/DC converters (integrated 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 2
類型 標題 日期
* Data sheet LM2653 1.5A High Efficiency Synchronous Switching Regulator datasheet (Rev. E) 2013年 4月 3日
User guide LM2653 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 2021年 12月 20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)。

封裝 引腳 下載
TSSOP (PW) 16 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