SM72238

ACTIVE

Micropower voltage regulator

Product details

Output options Fixed Output Fixed output options (V) 3.3, 5 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Operating temperature range (°C) -40 to 125
Output options Fixed Output Fixed output options (V) 3.3, 5 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Accuracy (%) 3 Operating temperature range (°C) -40 to 125
TO-252 (NDP) 3 65.2078 mm² 6.58 x 9.91
  • Renewable Energy Grade
  • High-Accuracy Output Voltage
  • Ensured 100mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Load and Line Regulation
  • Very Low Temperature Coefficient
  • Use as Regulator or Reference
  • Needs Minimum Capacitance for Stability
  • Current and Thermal Limiting
  • Stable With Low-ESR Output Capacitors (10mΩ to 6Ω)

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  • Renewable Energy Grade
  • High-Accuracy Output Voltage
  • Ensured 100mA Output Current
  • Extremely Low Quiescent Current
  • Low Dropout Voltage
  • Extremely Tight Load and Line Regulation
  • Very Low Temperature Coefficient
  • Use as Regulator or Reference
  • Needs Minimum Capacitance for Stability
  • Current and Thermal Limiting
  • Stable With Low-ESR Output Capacitors (10mΩ to 6Ω)

All trademarks are the property of their respective owners.

The SM72238 is a micropower voltage regulator with very low quiescent current (75µA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). It is ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the SM72238 increases only slightly in dropout, prolonging battery life.

The SM72238 is available in the surface-mount D-Pak package.

Careful design of the SM72238 has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

The SM72238 is a micropower voltage regulator with very low quiescent current (75µA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). It is ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the SM72238 increases only slightly in dropout, prolonging battery life.

The SM72238 is available in the surface-mount D-Pak package.

Careful design of the SM72238 has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

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Technical documentation

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Type Title Date
* Data sheet SM72238 Micropower Voltage Regulator datasheet (Rev. C) 01 Apr 2013
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Application note Linear power for automated industrial systems 09 Jan 2015
Application note AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 06 May 2013
Application note AN-2122 SM3320-RF-EV Reference Design (Rev. E) 06 May 2013
Application note SM3320-BATT-EV Charge Controller Reference Design (Rev. C) 06 May 2013
Application note AN-1482 LDO Regulator Stability Using Ceramic Output Capacitors (Rev. A) 25 Apr 2013
Application note Packaging Limits Range of Linear Regulators 08 May 2010
Application note Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 04 Jun 2008
Application note Understanding the Terms and Definitions of LDO Voltage Regulators 21 Oct 1999

Design & development

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TO-252 (NDP) 3 View options

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