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Linear & low-dropout (LDO) regulators

LP38513

ACTIVE

3-A, ultra-low-dropout voltage regulator with power good & enable for 1.8 V

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Data sheet

LP38513

ACTIVE
Data sheet Order now

Product details

Output options Fixed Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 1.8 Vout (min) (V) 1.8 Fixed output options (V) 1.8 Rating Catalog Noise (µVrms) 45 PSRR at 100 KHz (dB) 29 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 32 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 425 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 3 Vin (max) (V) 5.5 Vin (min) (V) 2.25 Vout (max) (V) 1.8 Vout (min) (V) 1.8 Fixed output options (V) 1.8 Rating Catalog Noise (µVrms) 45 PSRR at 100 KHz (dB) 29 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 32 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 425 Operating temperature range (°C) -40 to 125
TO-220 (NDH) 5 86.0552 mm² 10.16 x 8.47 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • Input Supply Voltage 2.25 V to 5.5 V
  • Conversions from 2.5-V Rail to 1.8-V Rail
  • Stable with Ceramic Capacitors
  • Low Ground Pin Current
  • Load Regulation of 0.1% for 10 mA to 3-A Load Current
  • 60-μA Typical Quiescent Current in Shutdown Mode
  • Specified Output Current of 3 A
  • Specified VOUT Accuracy of ±2.6% With
    TJ from 0°C to +125°C
  • ERROR Flag Indicates VOUT Status
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Operating TJ Range
  • Input Supply Voltage 2.25 V to 5.5 V
  • Conversions from 2.5-V Rail to 1.8-V Rail
  • Stable with Ceramic Capacitors
  • Low Ground Pin Current
  • Load Regulation of 0.1% for 10 mA to 3-A Load Current
  • 60-μA Typical Quiescent Current in Shutdown Mode
  • Specified Output Current of 3 A
  • Specified VOUT Accuracy of ±2.6% With
    TJ from 0°C to +125°C
  • ERROR Flag Indicates VOUT Status
  • Overtemperature and Overcurrent Protection
  • −40°C to +125°C Operating TJ Range

The LP38513 fast-response ultra-low dropout linear regulator operates from a 2.25-V to 5.5-V input supply. This device responds very quickly to step changes in line or load conditions, making it suitable for low-voltage microprocessor applications. Developed on a CMOS process, with a PMOS pass transistor, the LP38513 has low quiescent-current operation independent of the output load current. Ground Pin Current: Typically 12 mA at 3-A load current.Disable Mode: Typically 60 µA quiescent current when the enable (EN) pin is pulled low.ERROR Flag: The ERROR flag goes low if VOUT falls more than typically 15% below the nominal value.Precision Output Voltage: A specified VOUT accuracy of ±2.6% with TJ from 0°C to 125°C.

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

The LP38513 fast-response ultra-low dropout linear regulator operates from a 2.25-V to 5.5-V input supply. This device responds very quickly to step changes in line or load conditions, making it suitable for low-voltage microprocessor applications. Developed on a CMOS process, with a PMOS pass transistor, the LP38513 has low quiescent-current operation independent of the output load current. Ground Pin Current: Typically 12 mA at 3-A load current.Disable Mode: Typically 60 µA quiescent current when the enable (EN) pin is pulled low.ERROR Flag: The ERROR flag goes low if VOUT falls more than typically 15% below the nominal value.Precision Output Voltage: A specified VOUT accuracy of ±2.6% with TJ from 0°C to 125°C.

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

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Type Title Date
* Data sheet LP38513 3-A Fast Response Ultra-Low Dropout Linear Regulator datasheet (Rev. E) PDF | HTML 19 Nov 2015
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
EVM User's guide AN-1518 LP38513S-1.8 Evaluation Board (Rev. A) 24 Apr 2013
EVM User's guide AN-1670 LP38513TJ-ADJ Evaluation Board (Rev. B) 24 Apr 2013
EVM User's guide AN-1801 LP38511TJ-ADJ Evaluation Board (Rev. B) 24 Apr 2013
EVM User's guide AN-1802 LP38512TJ-ADJ Evaluation Board (Rev. B) 24 Apr 2013

Design & development

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TO-263 (KTT) 5 Ultra Librarian
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