LM117QML

現行

軍用級 1.5A 可調式輸出線性穩壓器/LDO

產品詳細資料

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 4.2 Vout (max) (V) 37 Vout (min) (V) 1.25 Fixed output options (V) 0 Rating Military Noise (µVrms) 75 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 39 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 1200 Operating temperature range (°C) -55 to 125
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 4.2 Vout (max) (V) 37 Vout (min) (V) 1.25 Fixed output options (V) 0 Rating Military Noise (µVrms) 75 PSRR at 100 KHz (dB) 40 Iq (typ) (mA) 5 Thermal resistance θJA (°C/W) 39 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 1200 Operating temperature range (°C) -55 to 125
CFP (NAC) 16 62.9285 mm² 9.91 x 6.35 DIESALE (Y) See data sheet LCCC (NAJ) 20 79.0321 mm² 8.89 x 8.89 TO-CAN (K) 2 989.0252 mm² 38.938 x 25.4 TO-CAN (NDT) 3 91.6742 mm² 10.03 x 9.14
  • Available with Radiation Ensured
    • High Dose Rate 100 krad(Si)
    • ELDRS Free 100 krad(Si)
  • Specified max. 0.3% Load Regulation (LM117)
  • Specified 0.5A or 1.5A Output Current
  • Adjustable Output Down to 1.2V
  • Current Limit Constant with Temperature
  • 80 dB Ripple Rejection
  • Output is Short-Circuit Protected

All trademarks are the property of their respective owners.

  • Available with Radiation Ensured
    • High Dose Rate 100 krad(Si)
    • ELDRS Free 100 krad(Si)
  • Specified max. 0.3% Load Regulation (LM117)
  • Specified 0.5A or 1.5A Output Current
  • Adjustable Output Down to 1.2V
  • Current Limit Constant with Temperature
  • 80 dB Ripple Rejection
  • Output is Short-Circuit Protected

All trademarks are the property of their respective owners.

The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying either 0.5A or 1.5A over a 1.2V to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators.

In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM117 is useful in a wide variety of other applications. Since the regulator is "floating" and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, i.e., avoid short-circuiting the output.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment pin and output, the LM117 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current.

For the negative complement, see LM137 series data sheet.

The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying either 0.5A or 1.5A over a 1.2V to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators.

In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM117 is useful in a wide variety of other applications. Since the regulator is "floating" and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, i.e., avoid short-circuiting the output.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment pin and output, the LM117 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current.

For the negative complement, see LM137 series data sheet.

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類型 標題 日期
* Data sheet LM117QML 3-Terminal Adjustable Regulator datasheet (Rev. D) 2013年 4月 16日
Application note A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
Application note AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) 2013年 5月 6日
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 2013年 5月 6日
Application note Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 2013年 5月 5日
More literature Die D/S LM117H MDE 3-Terminal Adj Regulator 2012年 9月 13日
More literature Die D/S LM117KG MD8 3-Terminal Adj Regulator 2012年 9月 13日
Application note Packaging Limits Range of Linear Regulators 2010年 5月 8日
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 2008年 6月 4日
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 1999年 10月 21日

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
CFP (NAC) 16 Ultra Librarian
DIESALE (Y)
LCCC (NAJ) 20 Ultra Librarian
TO-CAN (K) 2 Ultra Librarian
TO-CAN (NDT) 3 Ultra Librarian

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