MIC5235 Micrel Semiconductor, MIC5235 Datasheet
MIC5235
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MIC5235 Summary of contents
Page 1
... MIC5235 ideal for USB and portable electronics applications, using 1-cell, 2-cell or 3-cell Li-Ion battery inputs. A Cap LDO design, the MIC5235 is stable with either ceramic or tantalum output capacitor. It only requires a 2.2 F capacitor for stability. Features of the MIC5235 includes enable input, thermal shutdown, current limit, reverse battery protection, and reverse leakage protection ...
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... MIC5235 Pin Configuration Pin Description SOT-23-5 Pin Name GND (fixed) ADJ (ADJ.) 5 OUT MIC5235 EN GND L2xx OUT ADJ. SOT-23-5 Pin Function Supply Input Ground Enable (Input): Logic low = shutdown; logic high = enable No Connect Adjust (Input): Feedback input. Connect to resistive voltage-divider network. ...
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... C to +125 .................................................. 235 C/W JA < +125 C; unless otherwise specified. J Min. Typ. –1.0 –2.0 0.04 0.25 50 230 270 310 18 0. 0.1 350 –0.1 2.0 –1.0 0.01 0.1 0.5 Micrel Max. Units +1 300 mV 400 mV 400 mV 450 mV 450 mV 500 0 500 1.0 A 1.0 A 2.5 A MIC5235 ...
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... OUT I = 100 A OUT OUT 0 1.5 2 2.5 3 3.5 4 INPUT VOLTAGE (V) MIC5235 Dropout Voltage vs. Output Current 350 300 250 200 150 100 100 120 140 160 OUTPUT CURRENT (mA) Ground Pin Current vs. Output Current 3000 2500 IN 2000 ...
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... TEMPERATURE ( C) Load Transient Response 150mA 0mA OUT C = 4.7 F ceramic OUT TIME (400 s/div.) 5 Micrel Short Circuit Current vs. Temperature 400 350 300 250 200 150 100 -40 - 100 120 TEMPERATURE ( C) MIC5235 ...
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... MIC5235 Functional Diagrams MIC5235 ENABLE V REF GND Block Diagram – Fixed Output Voltage ENABLE V REF GND Block Diagram – Adjustable Output Voltage 6 Micrel OUT OUT R1 ADJ R2 August 2003 ...
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... Forcing the enable pin high enables the output voltage. Input Capacitor The MIC5235 has high input voltage capability up to 24V. The input capacitor must be rated to sustain voltages that may be used on the input. An input capacitor may be required when the device is not near the source power supply or when supplied by a battery ...
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... MIC5235 Adjustable Regulator Application The MIC5235BM5 can be adjusted from 1.24V to 20V by using two external resistors (Figure 1). The resistors set the output voltage based on the following equation OUT REF R 2 Where V = 1.24V. REF Feedback resistor R2 should be no larger than 300k . ...
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... Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify August 2003 1.75 (0.069) 3.00 (0.118) 1.50 (0.059) 2.60 (0.102) 1.30 (0.051) 0.90 (0.035 0.15 (0.006) 0.00 (0.000) SOT-23-5 (M5 (408) 944-0970 FAX WEB Micrel for any damages resulting from such use or sale. © 2003 Micrel, Incorporated. 9 DIMENSIONS: MM (INCH) 0.20 (0.008) 0.09 (0.004) 0.60 (0.024) 0.10 (0.004) http://www.micrel.com Micrel MIC5235 ...