LM117H Power Management ICs - PMIC by Texas Instruments

IC ADJUSTABLE VOLTAGE REG 37V TO-3

Status: Unknown
Series: -
RoHS: Unknown
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The LM117 and LM317-N series of adjustable 3-pin positive voltage regulators are capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature 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. The LM117 and LM317-N offer full overload protection such as current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected. Typically, 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 that are difficult to achieve with standard 3-terminal regulators. Because the regulator is floating and detects 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. That is, avoid short-circuiting the output. By connecting a fixed resistor between the adjustment pin and output, the LM117 and LM317-N can be also 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 1.25 V where most loads draw little current. For applications requiring greater output current, see data sheets for LM150 series (3 A), SNVS772, and LM138 series (5 A), SNVS771. For the negative complement, see LM137 (SNVS778) series data sheet.

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Prices starting from US$18.51

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Specifications

Fixed Output Voltage Nom. -
Adjustable Output Voltage Min 1.2V
Adjustable Output Voltage Max 37V
Input Voltage Min 4.2V
Input Voltage Max 40V
Product Range -
Output Current 500mA
Output Type Adjustable
Linear Regulator Case Style TO-39
No. of Pins 3Pins
Operating Temperature Min -55°C
Operating Temperature Max 150°C
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
IC Generic Number 117
No. of Outputs 1Outputs
Operating Temperature Range -55°C to +150°C
Output Current Max 1.5A
Output Voltage Max 37V
Output Voltage Min 1.2V
Primary Input Voltage 40V
Supply Voltage Min 3V
Termination Type Through Hole
Voltage Regulator Type Positive Adjustable

Alternative Descriptions

Ic, Adjustable Voltage Reg, 37V, To-3 | Newark Electronics
IC, ADJUSTABLE VOLTAGE REG, 37V, TO-3 | element14


Frequently Asked Questions

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What category does LM117H fall under?

The LM117H is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators.

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You can view similar parts to LM117H when available in the Voltage Regulators range under the specifications section at the bottom of the details page.

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Is the LM117H RoHS compliant?

This part has not been flagged as RoHS Compliant.

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