Features: `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 A723CPinout
SpecificationsPeak voltage from VCC+ to VCC (tw 3 50 ms) ..................................... 50 V
Continuous voltage from VCC+ to VCC ................................................40 V
Input-to-output voltage differential ........................................................40 V
Differential input voltage to error amplifier ............................................±5 V
Voltage between noninverting input and VCC....................................... 8 V
Current from VZ ...................................................................................25 mA
Current from REF.................................................................................. 15 mA
Package thermal impedance, qJA (see Notes 1 and 2): D package.... 86°C/W
N package........................................................................................101°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or N package ... 260°C
Storage temperature range, Tstg ..................................... 65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) TA)/JA. Operating at the absolute maximum TJ of 150°C can impact reliability.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.
DescriptionThe A723 is a precision integrated-circuit voltage regulator, featuring high ripple rejection,excellent input and load regulation, excellent temperature stability, and low standby current. The A723 consists of a temperature-compensated reference-voltage amplifier, an error amplifier, a 150-mA output transistor, and an adjustable-output current limiter.
The A723 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 A723C is characterized for operation from 0°C to 70°C.
UA723 Data Sheet
