UA723

ACTIVE

150-mA, 40-V, adjustable linear voltage regulator

A newer version of this product is available

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Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 40 Vin (min) (V) 9.5 Vout (max) (V) 37 Vout (min) (V) 2 Fixed output options (V) 37 Rating Catalog Noise (µVrms) 20 Iq (typ) (mA) 2.3 Thermal resistance θJA (°C/W) 86 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4.9 Dropout voltage (Vdo) (typ) (mV) 3000 Operating temperature range (°C) 0 to 70
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 40 Vin (min) (V) 9.5 Vout (max) (V) 37 Vout (min) (V) 2 Fixed output options (V) 37 Rating Catalog Noise (µVrms) 20 Iq (typ) (mA) 2.3 Thermal resistance θJA (°C/W) 86 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 4.9 Dropout voltage (Vdo) (typ) (mV) 3000 Operating temperature range (°C) 0 to 70
PDIP (N) 14 181.42 mm² 19.3 x 9.4 SOIC (D) 14 51.9 mm² 8.65 x 6 SOP (NS) 14 79.56 mm² 10.2 x 7.8
  • 150-mA Load Current Without External Power Transistor
  • Adjustable Current-Limiting Capability
  • Input Voltages up to 40 V
  • Output Adjustable From 2 V to 37 V
  • Direct Replacement for Fairchild uA723C
  • 150-mA Load Current Without External Power Transistor
  • Adjustable Current-Limiting Capability
  • Input Voltages up to 40 V
  • Output Adjustable From 2 V to 37 V
  • Direct Replacement for Fairchild uA723C

The uA723 is a precision integrated-circuit voltage regulator, featuring high ripple rejection, excellent input and load regulation, excellent temperature stability, and low standby current. The circuit consists of a temperature-compensated reference-voltage amplifier, an error amplifier, a 150-mA output transistor, and an adjustable-output current limiter.

The uA723 is designed for use in positive or negative power supplies as a series, shunt, switching, or floating regulator. For output currents exceeding 150 mA, additional pass elements can be connected as shown in Figures 4 and 5.

The uA723C is characterized for operation from 0°C to 70°C.

The uA723 is a precision integrated-circuit voltage regulator, featuring high ripple rejection, excellent input and load regulation, excellent temperature stability, and low standby current. The circuit consists of a temperature-compensated reference-voltage amplifier, an error amplifier, a 150-mA output transistor, and an adjustable-output current limiter.

The uA723 is designed for use in positive or negative power supplies as a series, shunt, switching, or floating regulator. For output currents exceeding 150 mA, additional pass elements can be connected as shown in Figures 4 and 5.

The uA723C is characterized for operation from 0°C to 70°C.

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Technical documentation

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Type Title Date
* Data sheet Precision Voltage Regulators datasheet (Rev. D) 21 Jul 1999
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017

Design & development

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Package Pins CAD symbols, footprints & 3D models
PDIP (N) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian
SOP (NS) 14 Ultra Librarian

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