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AP2139 - ULTRA LOW QUIESCENT CURRENT CMOS LDO

Download the AP2139 datasheet PDF. This datasheet also covers the AP2138 variant, as both devices belong to the same ultra low quiescent current cmos ldo family and are provided as variant models within a single manufacturer datasheet.

General Description

The AP2138/2139 series are CMOS-based positive voltage regulator ICs.

Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage and a current limit circuit for current protection.

Key Features

  • Ultra-Low Quiescent Current: 1.0µA Typical.
  • Output Voltages: 1.2V, 1.4V, 1.5V, 1.8V, 2.1V, 2.2V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V and 4.0V.
  • High Output Voltage Accuracy: ±2%.
  • Output Current: 250mA.
  • Low Dropout Voltage:.
  • 25mV Typical at IOUT = 10mA and VOUT = 3V.
  • 200mV Typical at IOUT = 100mA and VOUT = 3V.
  • Line Regulation: 6mV Typical.
  • Load Regulation: 25mV Typical.
  • Low Output Voltage Temperature Coefficient: ±100ppm/°C.
  • Low Standby Current: 0.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AP2138-DIODES.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Diodes Incorporated

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ADVANCED INFORMATION AP2138/2139 ULTRA LOW QUIESCENT CURRENT CMOS LDO Description The AP2138/2139 series are CMOS-based positive voltage regulator ICs. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage and a current limit circuit for current protection. The difference between AP2138 and AP2139 is the AP2139 has an enable circuit with a quick discharge function. These ICs feature high output voltage accuracy, extremely low quiescent current and low dropout voltage which make them ideal for use in various power sources for portable applications. The AP2138/2139 series have 1.2V, 1.4V, 1.5V, 1.8V, 2.1V, 2.2V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V and 4.0V fixed output voltage versions.