500mA Low Dropout Voltage Regulators
Description
SPX2937
500mA Low Dropout Voltage Regulators
(PRELIMINARY INFORMATION)
FEATURES
• Output Current 500mA at 15V, 12V, 10V, 8V, 5V, 3.
3V and 2.
5V • Internal Short Circuit Current Limit • Dropout Voltage 0.
5V at 500mA Output • Extremely Tight Load and Line Regulation • Very Low Temperature Coefficient • Mirror Image Insertion Protection • Direct Replacement For LM2937 Socket
APPLICATIONS
• Battery Powered Systems • Cordless Telephones • Automotive Electronics • Portable/ Palm Top / Notebook Computers • Portable Consumer Equipment • Portable Instrumentation • SMPS Post-Regulator • Voltage Reference
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) TO-263-3 (T) TO-220-3 (U)
SPX2937
1 2 3 1
SPX2937
2 3
SPX2937
1 2 3
VIN GND VOUT
Top View
VOUT GND VIN
Top View
VOUT GND VIN
Front View
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 .
...
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