LP2951-4.8BM Micrel Semiconductor, LP2951-4.8BM Datasheet
LP2951-4.8BM
Related parts for LP2951-4.8BM
LP2951-4.8BM Summary of contents
Page 1
... The quiescent current of the LP2950/LP2951 increases only slightly in dropout, thus prolonging battery life. This feature, among others, makes the LP2950 and LP2951 ideally suited for use in battery-powered systems. Available in a 3-Pin TO-92 package, the LP2950 is pin- compatible with the older 5V regulators. Additional system ...
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... Ordering Information Part Number LP2950-02BZ LP2950-03BZ LP2951-02BM LP2951-03BM LP2951-02BN LP2951-03BN LP2951-4.8BM * Junction temperatures Absolute Maximum Ratings If Military/Aerospace specified devices are required, contact your local Micrel representative/distributor for availability and specifications. Power dissipation Lead Temperature (Soldering, 5 seconds) Storage Temperature Range Operating Junction Temperature Range (Note 8) ...
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... T + LP295x-03 ( 1%) LP2951-4.8 ( 1%) Output Voltage LP295x-02 ( 0.5%), – +125 C Over Full Temperature Range LP295x-03 ( 1%), – +125 C LP2951-4.8 ( 1%), – +125 C Output Voltage LP295x-02 ( 0.5%), 100 A Over Load Variation LP295x-03 ( 1%), 100 A LP2951-4.8 ( 1%), 100 A Output Voltage LP295x-02 ( 0.5%), Note 12 Temperature Coefficient LP295x-03 ( 1%), Note 12 LP2951-4 ...
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... LP295x-02 ( 0.5%) LP295x-03 ( 1%) LP2951-4.8 ( 1%) Reference Voltage LP295x-02 ( 0.5%), Note 7 LP295x-03 ( 1%), Note 7 LP2951-4.8 ( 1%), Note 7 Feedback Bias Current Reference Voltage LP295x-02 ( 0.5%), Note 12 LP295x-03 ( 1%), Note 12 LP2951-4.8 ( 1%), Note 12 Feedback Bias Current Temperature Coefficient Output Leakage Current V OH Output Low Voltage (Flag Upper Threshold Voltage Note 6 Lower Threshold Voltage ...
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... Note 14: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered in the specification for thermal regulation. Note 15: Line regulation for the LP2951 is tested at 150 C for I 0.2%. See Typical Performance Characteristics for line regulation versus temperature and load current. ...
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LP2950/2951 Typical Performance Characteristics Quiescent Current 10 1 0.1 0.01 0 LOAD CURRENT (mA) Input Current 160 150 140 130 L 120 110 100 ...
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... 100 OUT FREQUENCY (Hz) 3-41 LP2951 Feedback Pin Current 50 PIN 7 DRIVEN BY EXTERNAL SOURCE (REGULATOR RUN 0 OPEN LOOP) - 125 C A -100 -150 -200 T = – -250 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 FEEDBACK VOLTAGE (V) Line Transient Response ...
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... T = 25° 85° INPUT VOLTAGE (V) 3-42 LP2951 Divider Resistance 400 300 200 100 -75 -50 - 100 125 150 TEMPERATURE (°C) LP2950 Maximum Rated Output Current 120 8-PIN MOLDED DIP SOLDERED TO PC BOARD ...
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... The out of regulation condition may be due either to low input voltage, current limiting, or thermal limiting. Figure timing diagram depicting the ERROR signal and the regulated output voltage as the LP2951 input is ramped up and down. The ERROR signal becomes valid (low) at about 1.3V input. It goes high at about 5V input (the input voltage at ...
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... R 100 1 OFF GND 1.23V REF Figure 2. Adjustable Regulator +V IN C-MOS GATE 470 k 47k OUT ERROR 200k LP2951 MIC2951 1% 3 2N3906 SD 100k 100pF FB GND 100k TO 2.5V OUT February 1999 Micrel = V OUT REF 30V 3.3µ ...
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... ERROR GND 4 27k EARLY WARNING 2. 330k +V IN SENSE MAIN OUTPUT 1 V OUT LP2951 # ERROR 1 f GND 4 Regulator with Early Warning and Auxiliary Output IS PROGRAMMED ONE DIODE DROP ABOVE 5 V. OUT 5.7 V. WHEN V IN AGAIN EXCEEDS 5.7 V REG 3-45 +V ...
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... Latch Off When Error Flag Occurs + 20mA 4 V OUT 4001 7 + 1µF 0.1µ Open Circuit Detector for 4mA to 20mA Current Loop SENSE 39k 5 V OUT ERROR RESET LP2951 – GND TAP 39k 4 6 100 6V 100k 1% – k LEAD ACID BATTERY 1 100k 1% – ...
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... SENSOR LM35 – LM34 for 125 F Shutdown LM35 for 125 C Shutdown February 1999 1.5k ** 1N457 LM385 1 V OUT – LP2951 2 3 SENSE SD 100k GND 4 Low Battery Disconnect < 5.5 V and turns on again at 6.0 V. Current drain in disconnected mode is 150 10k +V IN ...
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LP2950/2951 IN R11 Q42 180 k Q40 Q41 R30 ERROR Q15A R11 ...