SPX2951 Sipexoration, SPX2951 Datasheet
SPX2951
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SPX2951 Summary of contents
Page 1
... The error flag output feature is used as a power-on reset for warning of a low output voltage, due to a falling voltage. The logic compatible shutdown feature enables the regulator to be switched ON and OFF. The SPX2950 is offered in a 3-pin TO-92 package compatible with other 5.0V, 3.3V regulators. The SPX2951 is availiable in an 8-lead SOIC package. ...
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... Output Noise, C =1µF L 10Hz to 100kHz C =200µ =3.3µF, Bypass=0.01µF L from pin 7 to pin1 (SPX2951) 8-Pin Version only Reference Voltage Reference Voltage Over Temperature (Note 6) Feedback Pin Bias Current Reference Voltage Temperature Coefficient Feedback Pin Bias Current Temperature Coefficient Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator Feedback Input Voltage ...
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... Note 4: Line regulation for the SPX2951 is tested at I regulation versus temperature and load current. Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential ...
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... INPUT VOLTAGE (VOLTS) Ground Current INPUT VOLTAGE Ground Current Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator 250 225 200 R = 50kΩ L 175 150 125 100 ...
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... 100mA 0.2 OUT C = 1µF L 0.1 0.05 0.02 0.01 10 100 1K 10K 100K 1M FREQUENCY (Hz) Output Impedance Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator 500 400 300 200 T = 25ºC J 100 0 100µA 1mA 10mA 100mA OUTPUT CURRENT Drop-Out Voltage 2 125ºC A 2.0 1 25º -55º ...
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... JMAX =25 º º INPUT VOLTAGE (V) SPX2950 Maxium Rated Output Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator -10 -20 -30 -75 -50 - 100 125 150 TEMPEATURE (ºC) SPX2951 Feedback Bias Current ...
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... T = 150 º 125 º - INPUT VOLTAGE (V) Line Regulation Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator 1.25W TIME (µs) Thermal Response 50mA 100µA ...
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... Figure 1 shows the timing diagram depicting the ERROR signal and the regulator output voltage as the SPX2951 input is ramped up and down. The ERROR signal becomes low at around 1.3V input, and goes high around 5V input (input voltage at which ...
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... PROGRAMMING THE OUTPUT VOLTAGE OF SPX2951 The SPX2951 may be pin-strapped for 5V using its internal voltage divider by tying Pin 1 (out- put) to Pin 2 (sense) and Pin 7 (feedback) to Pin 6 (5V Tap). Also, it may be programmed for any output voltage between its 1.235V reference and its 30V maximum rating . As seen in Figure 2, an external pair of resistors is required ...
Page 10
... LEAD- ACID BATTERY SOURCE FB SPX385 400kΩ FOR 5.5 V 100kΩ Figure 5.Low Battery Disconnect Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator ERROR V OUT OUTPUT + SHUTDOWN R 1µF 1 INPUT *MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 40mV to 400mV. DEPENDING ON LOAD CURRENT. ...
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... R 1 20kΩ 1% Figure 6. Regulator with State-of Charge Indicator 3 AUX SHUTDOW SD INPUT OFF ON + TEMP AS35 SENSOR - Figure 7. System Over Temperature Protection Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator SENSE ERROR OUT SPX2951 GND TAP 4 ...
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... R2 4 50kΩ R30 30kΩ R3 50kΩ ERROR Q37 Q38 R26 4 60kΩ 2 Q39 Figure 10. Schematic Diagram Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator +5V 4.7mA UNREGULATED INPUT OUTPUT Ω 360K Figure 9. 300mA Regulator with 0.75V Q15A Q15B Q9 Q7 Q16 1 ...
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... Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Rev. 3/6/03 SPX2950/SPX2951 150mA Low Dropout Voltage Regulator TO-92 (N) 1 ...