MIC5258-1.2BM5 Micrel Inc, MIC5258-1.2BM5 Datasheet
MIC5258-1.2BM5
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MIC5258-1.2BM5 Summary of contents
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... Stability with low-ESR capacitors • Fast transient response • TTL-Logic-controlled enable input Applications • Processor power-up sequencing • Laptop, notebook, and palmtop computers • PCMCIA V Ordering Information Part Number Marking Voltage MIC5258-1.2BM5 LN12 Other voltages available. Contact Micrel for details. 47k MIC5258-x.xBM5 ...
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... Pin Configuration Pin Description Pin Number Pin Name GND OUT MIC5258 EN GND LNxx OUT MIC5258-x.xBM5 Pin Function Supply Input Ground Enable/Shutdown (Input): CMOS compatible input. Logic high = enable; logic low = shutdown. Do not leave open. Power Good Output Regulator Output 2 Micrel September 2001 ...
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... See Timing Diagram 3 (Note 2) ) ......................................... +2. .................................. ................................... ....................... – +125 ...................................................... 235 C +125 C; unless noted. J Min Typical –3 –4 –0.3 3.5 0.45 110 110 = 150mA tbd OUT 160 350 1.6 0.01 0.01 150 10 89 0.02 0.01 1 Micrel IN IN Max Units 0.3 %/ 150 A 150 0 0 MIC5258 ...
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... MIC5258 Block Diagrams IN EN Reference Voltage Thermal Sensor Under- voltage Lockout Overcurrent Dropout Detection Timing Diagram V 97% OUT MIC5258 Startup/ Quickstart Shutdown Control FAULT Error Current Amplifier Amplifier ACTIVE SHUTDOWN Out of Regulation Detection Delay Min - Max 1-5ms 4 PULL UP OUT PULL DOWN ...
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... OUT 1.19 1.185 1. 150mA OUT 1.175 1.17 2.6 3.1 3.6 4.1 4.6 5.1 5.6 6.1 INPUT VOLTAGE (V) Enable Voltage vs. Input Voltage 1.4 1.3 1.2 1.1 1 0.9 0.8 0 100 A OUT 0.6 2.6 3.1 3.6 4.1 4.6 5.1 5.6 6.1 INPUT VOLTAGE (V) MIC5258 ...
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... MIC5258 MIC5258 Enable Voltage vs. Temperature 1 3.3V IN 1.15 1.1 1.05 1 0.95 0.9 0.85 0.8 -40 - 100120140 TEMPERATURE ( C) Power Good Characteristic V = 12V OUT TIME (250 s/div) 6 Micrel September 2001 ...
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... D(max) D conditions that are critical to the application will give the maximum operating conditions for the regulator circuit. For example, when operating the MIC5258-1.2BM5 with a minimum footprint layout, the maximum input voltage for a set output current can be determined as follows: 125 ...
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... Regulator Thermals section of Micrel’s Designing with Low-Dropout Voltage Regu- lators handbook. 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. MIC5258 8 Micrel September 2001 ...
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... REF 3.02 (0.119) 2.80 (0.110) 0.50 (0.020) 0.35 (0.014) September 2001 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) 9 Micrel 0.20 (0.008) 0.09 (0.004) MIC5258 ...
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... MIC5258 MIC5258 10 Micrel September 2001 ...
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... MIC5258 September 2001 11 Micrel MIC5258 ...
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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. MIC5258 + 1 (408) 944-0970 http://www ...