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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM2775

現行

2.7-V 至 5.5-VIN、200-mA 輸出電流、5-V 固定輸出電壓倍增器

立即訂購
產品規格表

LM2775

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 85 Type Charge pump Iout (max) (A) 0.2 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1700 Switching frequency (max) (kHz) 2300 Features Load Disconnect, Regulated Vout (min) (V) 5 Vout (max) (V) 5 Iq (typ) (µA) 75
Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.2 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1700 Switching frequency (max) (kHz) 2300 Features Load Disconnect, Regulated Vout (min) (V) 5 Vout (max) (V) 5 Iq (typ) (µA) 75
WSON (DSG) 8 4 mm² 2 x 2
  • 2.7-V to 5.5-V Input Range
  • Fixed 5-V Output
  • 200-mA Output Current
  • Inductorless Solution: Only Requires 3 Small
    Ceramic Capacitors
  • Shutdown Disconnects Load from VIN
  • Current Limit and Thermal Protection
  • 2-MHz Switching Frequency
  • PFM Operation During Light Load Currents (PFM
    pin tied high)
  • 2.7-V to 5.5-V Input Range
  • Fixed 5-V Output
  • 200-mA Output Current
  • Inductorless Solution: Only Requires 3 Small
    Ceramic Capacitors
  • Shutdown Disconnects Load from VIN
  • Current Limit and Thermal Protection
  • 2-MHz Switching Frequency
  • PFM Operation During Light Load Currents (PFM
    pin tied high)

The LM2775 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The LM2775 can supply up to 200 mA of output current over a 3.1-V to 5.5-V input range, as well as up to 125 mA of output current when the input voltage is as low as 2.7 V. At low output currents, the LM2775 can reduce its quiescent current by operating in a pulse frequency modulation (PFM) mode. PFM mode can be enabled or disabled by driving the PFM pin to high or low. Additionally, when the LM2775 is in shutdown, the user can chose to have the output voltage pulled to GND or left in a high impedance state by setting the OUTDIS pin high or low.

The LM2775 has been placed in TI’s 8-pin WSON, a package with excellent thermal properties that keeps the part from overheating under almost all rated operating conditions.

The LM2775 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The LM2775 can supply up to 200 mA of output current over a 3.1-V to 5.5-V input range, as well as up to 125 mA of output current when the input voltage is as low as 2.7 V. At low output currents, the LM2775 can reduce its quiescent current by operating in a pulse frequency modulation (PFM) mode. PFM mode can be enabled or disabled by driving the PFM pin to high or low. Additionally, when the LM2775 is in shutdown, the user can chose to have the output voltage pulled to GND or left in a high impedance state by setting the OUTDIS pin high or low.

The LM2775 has been placed in TI’s 8-pin WSON, a package with excellent thermal properties that keeps the part from overheating under almost all rated operating conditions.
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open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
TPS60150 現行 採用 2x2 SON 封裝的 140mA、5V 充電泵 Iout is 150 mA which is bit smaller than LM2775 at 200 mA

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類型 標題 日期
* Data sheet LM2775 Switched Capacitor 5-V Boost Converter datasheet PDF | HTML 2015年 5月 7日
Application note How to Meet the HDMI 5V Source Requirement (Rev. C) 2019年 9月 26日
EVM User's guide Using the LM2775EVM Evaluation Module (Rev. A) 2018年 6月 20日
Technical article Pump it up with charge pumps – Part 1 PDF | HTML 2016年 2月 1日
Technical article Charge pumps: An often unconsidered method of DC/DC conversion PDF | HTML 2015年 7月 17日
Technical article Charge pump, inductor-based converter or LDO? PDF | HTML 2015年 6月 19日
White paper The Forgotten Converter 2015年 6月 15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)。

開發板

LM2775EVM — LM2775EVM 穩壓式 5V 200mA 電荷泵升壓評估模組

The LM2775EVM aids in evaluation of the LM2775 Regulated 5V 200mA Charge Pump Boost.  The 2 MHz switched capacitor  boost provides up to 200mA of output current at an output voltage of 5V utilizing 3 small external capacitors.  With a low current PFM or ECO mode, the LM2775 draws a (...)

使用指南: PDF
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模擬型號

Unencrypted LM2775 PSpice Transient Model (Rev. A)

SNVMA71A.ZIP (31 KB) - PSpice Model
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參考設計

TIDA-01524 — 車用高效率電源前端和多相位處理器供電參考設計

This processor supply reference design is an automotive power solution for use in highperformance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01492 — 整合電源前端和多相位處理器供電車用參考設計

This processor supply reference design is an automotive power solution for use in high performance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide (...)
Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DSG) 8 Ultra Librarian
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  • 認證摘要
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