LM26003

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具有高效睡眠模式的 3A 開關穩壓器

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LMQ66430 正在供貨 具有 1.5μA IQ 的 36V、3A 低 EMI 同步降壓轉換器 Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

產品詳情

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 38 Vin (min) (V) 3 Vout (max) (V) 35 Vout (min) (V) 1.25 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up Control mode current mode Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 40 Duty cycle (max) (%) 98 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 38 Vin (min) (V) 3 Vout (max) (V) 35 Vout (min) (V) 1.25 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up Control mode current mode Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 500 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 40 Duty cycle (max) (%) 98 Type Converter
HTSSOP (PWP) 20 41.6 mm2 6.5 x 6.4
  • LM26003-Q1 is an Automotive-Grade Product
    That is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • High-Efficiency Sleep Mode
  • 40-μA Typical Iq in Sleep Mode
  • 10.8-μA Typical Iq in Shutdown Mode
  • 3.0-V Minimum Input Voltage
  • 4.0-V to 38-V Continuous Input Range
  • 1.5% Reference Accuracy
  • Cycle-by-Cycle Current Limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an External Clock
  • Power Good Flag
  • Forced PWM Function
  • Adjustable Soft-Start
  • 20-Pin HTSSOP Package
  • Thermal Shut Down
  • LM26003-Q1 is an Automotive-Grade Product
    That is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • High-Efficiency Sleep Mode
  • 40-μA Typical Iq in Sleep Mode
  • 10.8-μA Typical Iq in Shutdown Mode
  • 3.0-V Minimum Input Voltage
  • 4.0-V to 38-V Continuous Input Range
  • 1.5% Reference Accuracy
  • Cycle-by-Cycle Current Limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an External Clock
  • Power Good Flag
  • Forced PWM Function
  • Adjustable Soft-Start
  • 20-Pin HTSSOP Package
  • Thermal Shut Down

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.
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技術文檔

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類型 標題 下載最新的英語版本 日期
* 數據表 LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode 數據表 (Rev. F) PDF | HTML 2015年 2月 6日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
選擇指南 電源管理指南 2018 (Rev. R) 2018年 6月 25日
技術文章 Design an automotive cluster power supply PDF | HTML 2015年 10月 16日
技術文章 Spread Spectrum: Headache tablet or vitamin pill? PDF | HTML 2015年 5月 18日
EVM 用戶指南 AN-1884 LM26003 Evaluation Board (Rev. B) 2013年 4月 24日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

LM26003EVAL — LM26003 - 具有高效休眠模式的 3A 開關穩壓器評估模塊

The LM26003 evaluation board is designed to demonstrate the capabilities of the LM26003 switching regulator. The LM26003 eval board can be configured to provide an output of 3.3V at up to 3A from the input range of 4V to 38V. The nominal operating frequency is 300kHz and can be synchronized from (...)

用戶指南: PDF
TI.com 上無現貨
仿真模型

LM26003 PSpice Average Model

SNVM185.ZIP (57 KB) - PSpice Model
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仿真模型

LM26003 Unencrypted PSpice Average Model

SNVM874.ZIP (1 KB) - PSpice Model
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封裝 引腳 CAD 符號、封裝和 3D 模型
HTSSOP (PWP) 20 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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