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LM2735-Q1

現行

520-kHz、1.6-MHz 空間效率升壓和 SEPIC DC/DC 穩壓器,符合 AEC-Q100 標準

產品詳細資料

Rating Automotive Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 24 Vout (min) (V) 3 Switch current limit (typ) (A) 2.25 Features Enable, Nonsynchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.007 Duty cycle (max) (%) 99
Rating Automotive Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 24 Vout (min) (V) 3 Switch current limit (typ) (A) 2.25 Features Enable, Nonsynchronous rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.007 Duty cycle (max) (%) 99
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 WSON (NGG) 6 9 mm² 3 x 3
  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Range
  • Input Voltage Range: 2.7 V to 5.5 V
  • Output Voltage Range: 3 V to 24 V
  • 2.1-A Switch Current Over Full Temperature Range
  • Current-Mode Control
  • Logic High Enable Pin
  • Ultra-Low Standby Current of 80 nA in Shutdown
  • 170-mΩ NMOS Switch
  • ±2% Feedback Voltage Accuracy
  • Ease-of-Use, Small Total Solution Size
    • Internal Soft Start
    • Internal Compensation
    • Two Switching Frequencies
    • 520 kHz (LM2735-Y)
    • 1.6 MHz (LM2735-X)
    • Uses Small Surface Mount Inductors and Chip Capacitors
    • Tiny SOT-23 and WSON Packages
  • Create a Custom Design Using the LM2735-Q1 With the WEBENCH® Power Designer
  • AEC-Q100 Qualified for Automotive Applications:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Range
  • Input Voltage Range: 2.7 V to 5.5 V
  • Output Voltage Range: 3 V to 24 V
  • 2.1-A Switch Current Over Full Temperature Range
  • Current-Mode Control
  • Logic High Enable Pin
  • Ultra-Low Standby Current of 80 nA in Shutdown
  • 170-mΩ NMOS Switch
  • ±2% Feedback Voltage Accuracy
  • Ease-of-Use, Small Total Solution Size
    • Internal Soft Start
    • Internal Compensation
    • Two Switching Frequencies
    • 520 kHz (LM2735-Y)
    • 1.6 MHz (LM2735-X)
    • Uses Small Surface Mount Inductors and Chip Capacitors
    • Tiny SOT-23 and WSON Packages
  • Create a Custom Design Using the LM2735-Q1 With the WEBENCH® Power Designer

The LM2735-Q1 device is an easy-to-use, space-efficient 2.1-A low-side switch regulator, ideal for boost and SEPIC DC/DC regulation. The device provides all the active functions to provide local DC-DC conversion with fast-transient response and accurate regulation in the smallest PCB area. Switching frequency is internally set to either 520 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductor and chip capacitors, while providing efficiencies of up to 90%. The device can be used as a post-boost, boosting from the main automotive system 3.3V rail to power CAN transceivers and other circuits requiring 5V. The 24V output capability allows the LM2735-Q1 to power audio amplifiers, antenna, power-over-coax (PoC), and automotive audio bus (A2B) devices as well.

Current-mode control and internal compensation provide ease-of-use, minimal component count, and high-performance regulation over a wide range of operating conditions. External shutdown features an ultra-low standby current of 80 nA, ideal for portable applications. Tiny SOT-23 and WSON packages provide space savings. Additional features include internal soft start, circuitry to reduce inrush current, pulse-by-pulse current limit, and thermal shutdown.

The LM2735-Q1 device is an easy-to-use, space-efficient 2.1-A low-side switch regulator, ideal for boost and SEPIC DC/DC regulation. The device provides all the active functions to provide local DC-DC conversion with fast-transient response and accurate regulation in the smallest PCB area. Switching frequency is internally set to either 520 kHz or 1.6 MHz, allowing the use of extremely small surface mount inductor and chip capacitors, while providing efficiencies of up to 90%. The device can be used as a post-boost, boosting from the main automotive system 3.3V rail to power CAN transceivers and other circuits requiring 5V. The 24V output capability allows the LM2735-Q1 to power audio amplifiers, antenna, power-over-coax (PoC), and automotive audio bus (A2B) devices as well.

Current-mode control and internal compensation provide ease-of-use, minimal component count, and high-performance regulation over a wide range of operating conditions. External shutdown features an ultra-low standby current of 80 nA, ideal for portable applications. Tiny SOT-23 and WSON packages provide space savings. Additional features include internal soft start, circuitry to reduce inrush current, pulse-by-pulse current limit, and thermal shutdown.

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LM2735 現行 520kHz/1.6MHz 節省空間的升壓和 SEPIC DC-DC 穩壓器 Commercial grade version.

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重要文件 類型 標題 格式選項 日期
* Data sheet LM2735-Q1 520-kHz and 1.6-MHz Space-Efficient Boost and SEPIC DC/DC Regulator datasheet PDF | HTML 2018年 9月 12日
Application note AN-1658 LM2735 BOOST and SEPIC DC-DC Regulator (Rev. A) 2013年 4月 23日
User guide High Efficiency Portable Media Player (PMP) Dock Station User Guide 2012年 1月 27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

LM2735XMFEVAL — 520 kHz 1.6 MHz - 節省空間的升壓和 SEPIC DC-DC 穩壓器 LM2735X 升壓 5 針腳 SOT23 展示板

The demo board included in this shipment uses the LM2735X 1.6MHz DC-DC switching regulator that converts 3V to 5.5V input to 12V output for up to 500mA load current depending on Vin. This is a 2-layer board using the bottom layer as a Ground plane.

使用指南: PDF
TI.com 無法提供
開發板

LM2735XMYEVAL — 520kHz 1.6MHz 節省空間的升壓和 SEPIC DC-DC 穩壓器 LM2735Y 升壓 8 針腳 eMSOP 展示板

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter in the 8-Pin eMSOP package. This is a 2-layer board using the bottom layer as a Ground plane.

使用指南: PDF
開發板

LM2735YMFEVAL — 520 kHz 1.6 MHz 節省空間的升壓和 SEPIC DC-DC 穩壓器 LM2735Y 升壓 5 針腳 SOT23 展示板

The demo board included in this shipment converts 3V to 5.5V input to 12V output for up to 500mA load current using the LM2735Y 520kHz DC-DC switching converter. This is a 2-layer board using the bottom layer as a ground plane.

使用指南: PDF
模擬型號

LM2735X Unencrypted PSpice Average Model

SNVMAG4.ZIP (1 KB) - PSpice Model
模擬型號

LM2735X Unencrypted PSpice Transient Model

SNVM838.ZIP (2 KB) - PSpice Model
模擬型號

LM2735X Unencrypted PSpice Transient Model Package (Rev. A)

SNVM299A.ZIP (179 KB) - PSpice Model
模擬型號

LM2735Y Unencrypted PSpice Average Model

SNVM839.ZIP (1 KB) - PSpice Model
模擬型號

LM2735Y Unencrypted PSpice Transient Model

SNVM840.ZIP (2 KB) - PSpice Model
模擬型號

LM2735Y Unencrypted PSpice Transient Model Package (Rev. A)

SNVM297A.ZIP (166 KB) - PSpice Model
模擬型號

Unencrypted LM2735X PSpice Average Model (Rev. A)

SNVMAG3A.ZIP (46 KB) - PSpice Model
模擬型號

Unencrypted LM2735Y PSpice Average Model (Rev. A)

SNVM298A.ZIP (44 KB) - PSpice Model
計算工具

FLYBUCK-FLYBACK-DESIGN-CALC Flybuck / Flyback Calculator

This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.

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參考設計

PMP41079 — 適用於 H 類音訊放大器的雙相交錯式升壓轉換器參考設計

此參考設計展示了適用於 H 類音訊放大器應用的 450W 雙相交錯式升壓轉換器參考設計。為了向外部音訊放大器供電,控制器能夠追蹤來自放大器的 H 類控制訊號,並產生追蹤喇叭振幅的輸出電壓。因此,能夠實現最小的整體功耗和損耗。
Test report: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-23 (DBV) 5 Ultra Librarian
WSON (NGG) 6 Ultra Librarian

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  • 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
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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