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Details, datasheet, quote on part number:LM2931CT-5.0
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Datasheet text preview:
LM2931-5.0
such as a load dump (60V) when the input voltage to the regulator can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The LM2931 can not be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided. Fixed output of 5V is available in the plastic the popular TO-92 package.
he LM2931 positive voltage regulator features a very low quiescent current of 1mA or less when supplying 10mA
loads. This unique characteristic and the extremely low in-putoutput differential required for proper regulation (0.2V for output currents of 10mA) make the LM2931 the ideal regulator for standby power systems. Applications include memory standby circuits, CMOS and other low power processor power supplies as well as systems demanding as much as 100mA of output current. Designed originally for automotive applications, the LM2931 and all regulated circuitry are protected from reverse battery installations or 2 battery jumps. During line transients,
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TO-92
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Pin : 1. Output 2. Ground 3. Input
LM2931CT-5.0
LM2931ACT-5.0
5V
5V
TO-92
TO-92
1-6 2000/05 VER.A
LM2931-5.0
Input Voltage Operating Range Overvoltage Protection PJ2931 26V
50V
Internal Power Dissipation(Note 1) Operating Temperature Range Maximum Junction Temperature Storage Temperature Range Lead Temp.(Soldering, 10 seconds)
Internally Limited 0 70 125 to +150 210
(V=14V,Io=10mA, T=25(Note 1), C2=100F(unless otherwise specified)
''
(
Output Voltage 6.0VV26V, Io 100mA -40Tj125 9VV16V 6VV26V 5mA
100mA 100mA and 10mArms, 100Hz-10KHz IomA6VV26V -40Tj125 Io=100mA,V=14V,Tj=25 10Hz-100KHz, C
=100F
5
LM !"#$%&
5.19 4.81
LM !"#$%&
5
) V V V V mV mV mV m! mA mA mA mA mV /1000hr dB V V V V V V
5.25 4.75
5.25 4.75 2 4 14 200 0.4 15 500 20 10 30 50 600 1.0 1.0 30 5 1000 50 80
,
5.5 4.5 2 4 14 200 0.4 15 500 20 10 30 50
Line Regulation Load Regulation Output Impedance Quiescent Current
1.0
1.0
Output Noise Voltage Long Term Stability Ripple Rejection Dropout Voltage
fo=120Hz Io=10mA Io=100mA
55 0.2 0.6
80
,
Maximum Operational Input 26 Voltage Maximum Line R=5005.5V,100ms 70 60 Transient Reverse Polarity -30 -15 Vo-0.3V, R=500! Input Voltage,DC Reverse Polarity 1% Duty Cycle, 100ms R=500! Input Voltage, -80 -50 Transient Note 1:To ensure constant junction temperature, low duty cycle pulse testing is used. Note 2:Guaranteed and 100% production tested.
0.3 33
0.3 33 70
0.2 0.6 26 50 -15 -50
-30 -80
V
Note 3:Guaranteed (but not 100% production tested)over the operating temperature and input current ranges. These limits are not used to calculate outgoing quality levels. Note 4:Thermal resistance junction-to-case (jc) is 3/W; case-to-ambient is 50/W.
2-6
LM2931-5.0
V=14V,V
=3V,I=10 mA, T=25(Note 1), R1=27K,C2=100"F(unless otherwise specified) '' Reference Voltage Io100mA, -40Tj125 R1=27K Measured from V
to Adjust Pin Output Voltage Range Line Regulation Load Regulation Output Impedance Quiescent Current V
+0.6VV26V 5mAIo100mA 100mA and 10mArms 100Hz-10KHz Io=10mA Io=100 mA During Shutdown R=500! Output Noise Voltage Long Term Stability Ripple Rejection Dropout Voltage Maximum Operational Input Voltage Maximum Line Transient Reverse Polarity Input Voltage, DC Reverse Polanty Input Voltage Transient On/Off Threshold Voltage Vo=3V On Off On/Off Threshold Current
(
* + 1.20
1.26 1.14 1.32 1.08 24 3
) V V V V V V mV /V %MAX
!/V
0.2 0.3 40 0.4 15 0.8 100
"
1.5 1 1 1
mA mA mA Vrms/V %/1000hr %/V
10Hz-100KHz fo=120Hz Io10 mA Io=100 mA
0.02 0.05 0.3 33 0.2 0.6 26 60 -15 -50 1.2 3.25 50
V V V V V V V V A
Io=10 mA, Reference Voltage1.5V Vo-0.3V,R=500!
70 -30
1% Duty Cycle, T100msR=500! -80 2.0 2.2 20
3-6
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