LP38692-ADJ

ACTIVE

1-A, 10-V, adjustable low-dropout voltage regulator with enable

Product details

Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 9 Vout (min) (V) 1.25 Rating Catalog Noise (µVrms) 80 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Foldback overcurrent protection Accuracy (%) 1.4 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 9 Vout (min) (V) 1.25 Rating Catalog Noise (µVrms) 80 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Foldback overcurrent protection Accuracy (%) 1.4 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
SOT-223 (NDC) 5 45.24 mm² 6.5 x 6.96 WSON (NGG) 6 9 mm² 3 x 3
  • Input Voltage Range: 2.7 V to 10 V
  • Output Voltage Range: 1.25 V to 9 V
  • 2.5% Adjust Pin Voltage Accuracy (25°C)
  • Low Dropout Voltage: 450 mV at 1 A (5-V Typical VOUT)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specs for –40°C to +125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Enable (EN) Pin (LP38692-ADJ)
  • 5-Pin SOT-223 and 6-Pin WSON Packages
  • Input Voltage Range: 2.7 V to 10 V
  • Output Voltage Range: 1.25 V to 9 V
  • 2.5% Adjust Pin Voltage Accuracy (25°C)
  • Low Dropout Voltage: 450 mV at 1 A (5-V Typical VOUT)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specs for –40°C to +125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Enable (EN) Pin (LP38692-ADJ)
  • 5-Pin SOT-223 and 6-Pin WSON Packages

The LP38690-ADJ and LP38692-ADJ low dropout CMOS linear regulators provide 2.5% precision reference voltage, extremely low dropout voltage (450 mV at 1-A load current, VOUT = 5 V) and excellent AC performance utilizing ultralow equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON and SOT-223 packages allow the full operating current to be used even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature. Dropout Voltage: 450 mV (typical) at 1 A (typical 5-V out) Ground Pin Current: 55 µA (typical) at full loadAdjust Pin Voltage: 2.5% (25°C) accuracy

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

The LP38690-ADJ and LP38692-ADJ low dropout CMOS linear regulators provide 2.5% precision reference voltage, extremely low dropout voltage (450 mV at 1-A load current, VOUT = 5 V) and excellent AC performance utilizing ultralow equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON and SOT-223 packages allow the full operating current to be used even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature. Dropout Voltage: 450 mV (typical) at 1 A (typical 5-V out) Ground Pin Current: 55 µA (typical) at full loadAdjust Pin Voltage: 2.5% (25°C) accuracy

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 LP3869x-ADJ 1-A Low Dropout CMOS Linear Regulator With Adjustable Output - Stable With Ceramic Output Capacitors datasheet (Rev. I) PDF | HTML 25 Feb 2016
EVM User's guide AN-1424 LP38692-ADJ Evaluation Board (Rev. C) 11 Dec 2013

Design & development

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Simulation model

LP38692_ADJ PSpice Transient Model

SNVM600.ZIP (39 KB) - PSpice Model
Simulation model

LP38692_ADJ Unencrypted PSpice Transient Model

SNVMAA0.ZIP (1 KB) - PSpice Model
Package Pins CAD symbols, footprints & 3D models
SOT-223 (NDC) 5 Ultra Librarian
WSON (NGG) 6 Ultra Librarian

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