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LP2954

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250mA、30V、低壓降穩(wěn)壓器

產(chǎn)品詳情

Rating Catalog Vin (max) (V) 30 Vin (min) (V) -20 Iout (max) (A) 0.25 Output options Adjustable Output Vout (max) (V) 29 Vout (min) (V) 1.23 Noise (μVrms) 80 PSRR at 100 KHz (dB) 14 Iq (typ) (mA) 0.21 Features Enable, Power good Thermal resistance θJA (°C/W) 44 Load capacitance (min) (μF) 2.2 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 800 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 30 Vin (min) (V) -20 Iout (max) (A) 0.25 Output options Adjustable Output Vout (max) (V) 29 Vout (min) (V) 1.23 Noise (μVrms) 80 PSRR at 100 KHz (dB) 14 Iq (typ) (mA) 0.21 Features Enable, Power good Thermal resistance θJA (°C/W) 44 Load capacitance (min) (μF) 2.2 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 800 Operating temperature range (°C) -40 to 125
SOIC (D) 8 29.4 mm2 4.9 x 6 TO-220 (NDE) 3 46.5328 mm2 10.16 x 4.58 TO-263 (KTT) 3 154.8384 mm2 10.16 x 15.24
  • 5-V Output within 1.2% Over Temperature
    (A Grade)
  • Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)
  • Ensured 250-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Reverse Battery Protection
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Pin Compatible with LM2940 and LM340
    (5-V Version Only)
  • Adjustable Version Adds ERROR Flag to Warn of Output Drop and a Logic-Controlled Shutdown
  • 5-V Output within 1.2% Over Temperature
    (A Grade)
  • Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)
  • Ensured 250-mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Reverse Battery Protection
  • Extremely Tight Line and Load Regulation
  • Very Low Temperature Coefficient
  • Current and Thermal Limiting
  • Pin Compatible with LM2940 and LM340
    (5-V Version Only)
  • Adjustable Version Adds ERROR Flag to Warn of Output Drop and a Logic-Controlled Shutdown

The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current).

The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life.

The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, small-outline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V.

Reverse battery protection is provided for the IN pin.

The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference.

Output accuracy is ensured at both room temperature and over the entire operating temperature range.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current).

The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life.

The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, small-outline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V.

Reverse battery protection is provided for the IN pin.

The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference.

Output accuracy is ensured at both room temperature and over the entire operating temperature range.

For all available packages, see the orderable addendum at the end of the data sheet.
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類型 標(biāo)題 下載最新的英語(yǔ)版本 日期
* 數(shù)據(jù)表 LP2954, LP2954A 5-V and Adjustable Micropower LDOs 數(shù)據(jù)表 (Rev. E) PDF | HTML 2016年 7月 28日
應(yīng)用手冊(cè) AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 2013年 4月 23日
應(yīng)用手冊(cè) Linear and Switching Voltage Regulator Fundamental Part 1 2007年 3月 21日

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參考設(shè)計(jì)

TIDA-00202 — HIPERFACE 位置編碼器接口參考設(shè)計(jì)

TIDA-00202 參考設(shè)計(jì)實(shí)現(xiàn)了一款符合 EMC 標(biāo)準(zhǔn)的工業(yè)級(jí)混合模擬與數(shù)字接口，可連接至 HIPERFACE 位置編碼器。雙向參數(shù)通道采用帶 IEC-ESD 和 IEC-EFT 防護(hù)功能的 3.3V 供電 RS485 收發(fā)器。對(duì)于模擬正弦/余弦信號(hào)通道，設(shè)計(jì)提供兩種方案以提升連接靈活性：既適用于內(nèi)置 ADC 的處理器，也適用于無(wú)內(nèi)置 ADC 的處理器；同時(shí)使用兩種方案還可實(shí)現(xiàn)冗余功能。第一種方案采用帶 SPI 輸出的全差分雙路 12 位 ADC，第二種方案采用帶單端模擬輸出 (0-3.3V) 的雙路差分輸入。該設(shè)計(jì)具備符合工業(yè)標(biāo)準(zhǔn)的 24V 輸入，電壓寬范圍為 16V 至 (...)
設(shè)計(jì)指南: PDF
原理圖: PDF
封裝 引腳 CAD 符號(hào)、封裝和 3D 模型
SOIC (D) 8 Ultra Librarian
TO-220 (NDE) 3 Ultra Librarian
TO-263 (KTT) 3 Ultra Librarian

訂購(gòu)和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識(shí)
  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測(cè)
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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