Product details

Output options Adjustable Output Iout (Max) (A) 0.5 Vin (Max) (V) 10 Vin (Min) (V) 2.7 Vout (Max) (V) 9 Vout (Min) (V) 1.25 Noise (uVrms) 80 Iq (Typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback overcurrent protection Accuracy (%) 2 PSRR @ 100 KHz (dB) 45 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 125
Output options Adjustable Output Iout (Max) (A) 0.5 Vin (Max) (V) 10 Vin (Min) (V) 2.7 Vout (Max) (V) 9 Vout (Min) (V) 1.25 Noise (uVrms) 80 Iq (Typ) (mA) 0.055 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback overcurrent protection Accuracy (%) 2 PSRR @ 100 KHz (dB) 45 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 125
SOT-223 (NDC) 5 45 mm² 6.5 x 6.96 WSON (NGG) 6 9 mm² 3 x 3
  • Wide Input Voltage Range: 2.7 V to 10 V
  • All WSON Options are Available as AEC-Q100 Grade 1
  • Output Voltage Range: 1.25 V to 9 V
  • 2% Adjust (ADJ) Pin Voltage Accuracy (25°C)
  • Low Dropout Voltage: 250 mV at 500 mA
    (Typical, 5-V Out)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specs for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Ground (GND) Pin Curent: 55 µA (Typical) at Full Load
  • Enable (EN) Pin (LP38693-ADJ)
  • Wide Input Voltage Range: 2.7 V to 10 V
  • All WSON Options are Available as AEC-Q100 Grade 1
  • Output Voltage Range: 1.25 V to 9 V
  • 2% Adjust (ADJ) Pin Voltage Accuracy (25°C)
  • Low Dropout Voltage: 250 mV at 500 mA
    (Typical, 5-V Out)
  • Precision (Trimmed) Bandgap Reference
  • Ensured Specs for –40°C to 125°C
  • 1-µA Off-State Quiescent Current
  • Thermal Overload Protection
  • Foldback Current Limiting
  • Ground (GND) Pin Curent: 55 µA (Typical) at Full Load
  • Enable (EN) Pin (LP38693-ADJ)

The LP3869x-ADJ low-dropout CMOS linear regulators provide 2% precision reference voltage, extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultra-low equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON and SOT-223 packages allow use of the full operating current 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, thus allowing the GND-pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

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

The LP3869x-ADJ low-dropout CMOS linear regulators provide 2% precision reference voltage, extremely low dropout voltage (250 mV at 500-mA load current, VOUT = 5 V), and excellent AC performance using ultra-low equivalent series resistance (ESR) ceramic output capacitors.

The low thermal resistance of the WSON and SOT-223 packages allow use of the full operating current 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, thus allowing the GND-pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

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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* Data sheet LP3869x-ADJ/Q1 500-mA Low-Dropout CMOS Linear Regulators Stable With Ceramic Output Capacitors datasheet (Rev. K) 19 Jan 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LP38693-ADJEV — 500mA Low Dropout CMOS Linear Regulator with Adjustable Output Evaluation Board

The LP38693SD-ADJ is a 500mA low-dropout linear regulator whose output voltage can be externally set to any valuebetween 1.25V and 9V using two resistors. The output voltage on this evaluation board is pre-set to 3.30V. This application note gives information about the evaluation board supplied to (...)

Simulation model

LP38693_ADJ PSpice Transient Model

SNVM596.ZIP (39 KB) - PSpice Model
Simulation model

LP38693_ADJ Unencrypted PSpice Transient Model

SNVMAA2.ZIP (1 KB) - PSpice Model
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Package Pins Download
SOT-223 (NDC) 5 View options
WSON (NGG) 6 View options

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