Sipex Corporation SPX2937M3-12, SPX2937M3-15, SPX2937M3-2.5, SPX2937M3-3.3, SPX2937M3-5.0 Datasheet
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SPX2937
500mA Low Dropout Voltage Regulators
(PRELIMINARY INFORMATION)
FEATURES |
APPLICATIONS |
• Output Current 500mA at 15V, 12V, 10V, 8V, 5V, 3.3V and 2.5V |
• Battery Powered Systems |
• Internal Short Circuit Current Limit |
• Cordless Telephones |
• Dropout Voltage 0.5V at 500mA Output |
• Automotive Electronics |
• Extremely Tight Load and Line Regulation |
• Portable/ Palm Top / Notebook Computers |
• Very Low Temperature Coefficient |
• Portable Consumer Equipment |
• Mirror Image Insertion Protection |
• Portable Instrumentation |
• Direct Replacement For LM2937 Socket |
• SMPS Post-Regulator |
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• Voltage Reference |
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PRODUCT DESCRIPTION
The SPX2937 is a low power positive voltage regulator. The SPX2937 offers 500mA output current with a dropout voltage of only 0.5V and over temperature dropout is up to 1V. The quiescent current is 10mA at differential output of 5V and output current of 500mA. A higher quiescent current can exist when the device is in dropout mode (VIN - VOUT≤ 3V )
The regulator will automatically shut down to protect both the internal circuits and the load. This device also features short circuit and thermal overload protection.
The SPX2937 is offered in a 3-pin TO-220 package compatible with other 5 volt and 3.3 volt regulators, TO-263 and SOT-223. This device offers a variety of output voltages 15V, 12V, 10V, 8V, 5V, 3.3V and 2.5V. SPX2937 is a direct replacement to LM2937.
PIN CONNECTIONS
SOT-223 (M3) |
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TO-263-3 (T) |
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TO-220-3 (U) |
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SPX2937 |
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SPX2937 |
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SPX2937 |
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VIN |
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GND |
VOUT |
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Top View |
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VOUT GND VIN |
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Top View |
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VOUT GND VIN |
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Front View |
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Rev. 10/30/00
SPX2937
ABSOLUTE MAXIMUM RATINGS
Power Dissipation.......................................... |
Internally Limited |
Lead Temp. (Soldering, 10 Seconds) .............................. |
260°C |
Storage Temperature Range ......................... |
-65°C to +150°C |
Operating Junction Temperature Range ........ |
-40°C to +125°C |
Input Supply Voltage ................................................... |
+20V |
Feedback Input Voltage .................................. |
-1.5V to +20V |
Shutdown Input Voltage.................................. |
-0.3V to +20V |
Error Comparator Output ................................ |
-0.3V to +20V |
ESD Rating ............................................................ |
2KV Min |
ELECTRICAL CHARACTERISTICS at VIN = VO + 5V, IO = 500mA, CO = 10 F, unless otherwise specified. Limits in Boldface type apply over the entire operating temperature range. All other specifications are TA = 25°C.
PARAMETER |
CONDITIONS |
SPX2937-2.5 |
SPX2937-3.3 |
SPX2937-5.0 |
SPX2937-8.0 |
UNITS |
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Min |
Typ |
Max |
Min |
Typ |
Max |
Min |
Typ |
Max |
Min |
Typ |
Max |
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Output Voltage |
5mA ≤IO ≤0.75A |
2.42 |
2.5 |
2.56 |
3.20 |
3.3 |
3.40 |
4.85 |
5.0 |
5.15 |
7.76 |
8.0 |
8.24 |
V |
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2.38 |
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2.62 |
3.14 |
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3.46 |
4.75 |
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5.25 |
7.60 |
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8.40 |
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Line Regulation |
VO+2V≤VIN≤ 20V |
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7.5 |
25 |
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9.9 |
33 |
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15 |
50 |
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24 |
80 |
mV |
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IO=5mA |
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Load Regulation |
50mA≤IO≤ 500mA |
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2.5 |
25 |
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3.3 |
33 |
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5 |
50 |
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8 |
80 |
mV |
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Dropout Voltage |
IL = 50 mA |
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110 |
250 |
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110 |
250 |
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110 |
250 |
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110 |
250 |
mV |
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IL = 500mA |
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0.5 |
1.0 |
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0.5 |
1.0 |
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0.5 |
1.0 |
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0.5 |
1.0 |
V |
Quiescent |
VO + 2V ≤VIN≤20V |
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2 |
10 |
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2 |
10 |
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2 |
10 |
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2 |
10 |
mA |
Current |
IO = 5mA |
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10 |
20 |
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10 |
20 |
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10 |
20 |
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10 |
20 |
mA |
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VIN=VO+5V |
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IO=500mA |
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Output Noise |
10Hz - 100kHz |
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75 |
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99 |
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150 |
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240 |
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µVRMS |
Voltage |
IO = 5mA |
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Ripple Rejection |
FO = 120Hz, 1VRMS |
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60 |
72 |
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60 |
72 |
60 |
72 |
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60 |
72 |
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dB |
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IO = 500mA |
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54 |
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54 |
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54 |
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54 |
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Long Term |
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10 |
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13.2 |
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20 |
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32 |
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mV/ 1000Hr |
Stability |
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Short Circuit |
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0.6 |
1.0 |
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0.6 |
1.0 |
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1.0 |
0.60 |
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1.0 |
0.60 |
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A |
Current |
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Maximum Line |
RO = 100Ω |
60 |
75 |
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60 |
75 |
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60 |
75 |
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60 |
75 |
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V |
Transient |
T ≤ 100ms |
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Reverse Polarity |
RO = 100Ω |
-15 |
-30 |
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-15 |
-30 |
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-15 |
-30 |
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-15 |
-30 |
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V |
DC Input |
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Voltage |
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Reverse Polarity |
RO = 100Ω |
-50 |
-75 |
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-50 |
-75 |
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-50 |
-75 |
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-50 |
-75 |
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V |
Transient Input |
T ≤ 100ms |
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Voltage |
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Rev. 10/30/00
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