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L7924CV View Datasheet(PDF) - STMicroelectronics

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Description
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L7924CV
ST-Microelectronics
STMicroelectronics ST-Microelectronics
L7924CV Datasheet PDF : 16 Pages
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L7900 SERIES
ELECTRICAL CHARACTERISTICS OF L7924C (refer to the test circuits, TJ = 0 to 125°C, VI = -33V,
IO = 500 mA, CI = 2.2 µF, CO = 1 µF unless otherwise specified).
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VO Output Voltage
TJ = 25°C
-23 -24 -24.5 V
VO Output Voltage
IO = -5 mA to -1 A PO 15 W
VI = -27 to -38 V
-22.8 -24 -25.2 V
VO(*) Line Regulation
VI = -27 to -38 V
TJ = 25°C
480 mV
VI = -30 to -36 V
TJ = 25°C
240
VO(*) Load Regulation
IO = 5 mA to 1.5 A
TJ = 25°C
480 mV
IO = 250 to 750 mA
TJ = 25°C
240
Id Quiescent Current
TJ = 25°C
3
mA
Id Quiescent Current Change IO = 5 mA to 1 A
0.5 mA
VI = -27 to -38 V
1
VO/T Output Voltage Drift
IO = 5 mA
-1
mV/°C
eN Output Noise Voltage
B = 10Hz to 100KHz
TJ = 25°C
400
µV
SVR Supply Voltage Rejection VI = 10 V f = 120Hz
54
60
dB
Vd Dropout Voltage
IO = 1 A
TJ = 25°C VO = 100 mV
1.1
V
Isc Short Circuit Current
1.1
A
(*) Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
APPLICATIONS INFORMATION
Figure 1 : Fixed Output Regulator
NOTE:
1. To specify an output voltage, substitute voltage value for "XX".
2. Required for stability. For value given, capacitor must be solid tantalum. If aluminium electrolytics are used, at least ten times value should
be selected. C1 is required if regulator is located an appreciable distance from power supply filter.
3. To improve transient response. If large capacitors are used, a high current diode from input to output (1N4001 or similar) should be intro-
duced to protect the device from momentary input short circuit.
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