MIC5245 MICREL [Micrel Semiconductor], MIC5245 Datasheet
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MIC5245
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MIC5245 Summary of contents
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... The MIC5245 of- fers better than 1% initial accuracy, extremely low dropout voltage (typically 150mV at 150mA) and constant ground current over load (typically 100 A). The MIC5245 provides a very low noise output, ideal for RF applications where quiet voltage sources are required. A noise bypass pin is also available for further reduction of output noise ...
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... Enable Input Voltage (V ) ................................. 0V to +7V EN Junction Temperature (T ) ...................................... +150 C J Storage Temperature ............................... – +150 C Lead Temperature (soldering, 5 sec.) ....................... 260 C ESD, Note 3 MIC5245 Pin Function IN Supply Input GND Ground EN Enable/Shutdown (Input): CMOS compatible input. Logic high = enable; logic low = shutdown. Do not leave open. ...
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... +125 C; unless noted. J Min Typical Max –1 1 –2 2 –0.3 0 0.3 2.0 3.0 1 100 150 150 200 250 0.2 1 100 150 100 = 0. 160 300 30 0.8 0.4 2.0 1 0.17 1.5 500 150 10 Micrel Units % % %/ V(rms MIC5245 ...
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... OUT 10mA 30 100 cer. OUT 0.01 F BYP 0 0 200 400 600 800 1000 VOLTAGE DROP (mV) MIC5245 Power Supply Rejection Ratio 100 I = 10mA OUT tant OUT OUT 1E+1 1E+2 1E+3 1E+4 1E+5 1E+6 1E+7 10 100 1k 10k 100k 1M 10M ...
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... OUT OUT INPUT VOLTAGE (V) Dropout Voltage 300 I = 150mA L 250 200 150 100 50 0 -40 - 100120140 TEMPERATURE ( C) Output Voltage vs. Temperature 3. TYPICAL 3V DEVICE 3.00 2.95 2.90 I LOAD 2.85 - TEMPERATURE ( C) Micrel = 150mA 100 A 100 150 MIC5245 ...
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... Enable Pin Bias Current 2.0 1.5 1.0 0.5 0 -40 - 100120140 Functional Characteristics Line Transient Response OUT OUT C = 0.01 F BYP I = 100 A OUT TIME (10ms/div.) Enable Pin Delay TIME (20 s/div.) MIC5245 100mV EN TEMPERATURE ( OUT OUT C = 0.01 F BYP load ...
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... MIC5245 Block Diagrams IN Reference Voltage EN Thermal Sensor Under- voltage Lockout GND June 2000 Startup/ Quickstart/ Shutdown Noise Control Cancellation FAULT Error Current Amplifier Amplifier ACTIVE SHUTDOWN 7 Micrel BYP PULL UP OUT PULL DOWN MIC5245 ...
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... This allows the output capacitor and load to dis- charge, de-energizing the load. Thermal Considerations The MIC5245 is designed to provide 150mA of continuous current in a very small package. Maximum power dissipation can be calculated based on the output current and the voltage drop across the part. To determine the maximum power ...
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... C BYP Dual-Supply Operation When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground OUT 9 MIC5245-x.xBM5 OUT 1.0µ Enable Shutdown minimum. OUT Micrel MIC5245 ...
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... MIC5245 Package Information 1.90 (0.075) REF 0.95 (0.037) REF 3.02 (0.119) 2.80 (0.110) 0.50 (0.020) 0.35 (0.014) MIC5245 1.75 (0.069) 3.00 (0.118) 1.50 (0.059) 2.60 (0.102) DIMENSIONS: MM (INCH) 1.30 (0.051) 0.90 (0.035 0.15 (0.006) 0.60 (0.024) 0.00 (0.000) 0.10 (0.004) SOT-23-5 (M) 10 Micrel 0.20 (0.008) 0.09 (0.004) June 2000 ...
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... MIC5245 June 2000 11 Micrel MIC5245 ...
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... This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. MIC5245 + 1 (408) 944-0970 http://www ...