MIC2920A Micrel Semiconductor, MIC2920A Datasheet
MIC2920A
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MIC2920A Summary of contents
Page 1
... The MIC2920A family are “bulletproof,” efficient voltage regulators with very low dropout voltage (typically 40mV at light loads and 370mV at 250mA), and very low quiescent current (140 A typical). The quiescent current of the MIC2920A increases only slightly in dropout, prolonging battery life. Key MIC2920A features include protection against reversed battery, fold-back current limiting, and automotive “ ...
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... MIC2920A/29201/29202/29204 Ordering Information Part Number Voltage MIC2920A-3.3BS 3.3V MIC2920A-3.3BT 3.3V MIC2920A-4.8BS 4.85V MIC2920A-4.8BT 4.85V MIC2920A-5.0BS 5.0V MIC2920A-5.0BT 5.0V MIC2920A-12BS 12V MIC2920A-12BT 12V MIC29201-3.3BM 3.3V MIC29201-3.3BT 3.3V MIC29201-3.3BU 3.3V MIC29201-4.8BT 4.85V MIC29201-4.8BU 4.85V MIC29201-5.0BT 5.0V MIC29201-5.0BU 5.0V MIC29201-12BT ...
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... C and limits in boldface apply over the full operating temperature range. Unless = 1mA Adjustable version are set for an output of 5V. The MIC29202 V L Conditions Variation from factory trimmed V OUT 1mA I 400mA, across temp. range L MIC2920A-12 and 29201-12 only 1mA I 400mA, across temp. range L (Note 2) V > 10V only OUT ...
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... MIC2920A/29201/29202/29204 Electrical Characteristics MIC29202, MIC29204 Parameter Conditions Reference Voltage MIC29202 Reference Voltage MIC29202 (Note 8) Reference Voltage MIC29204 Reference Voltage MIC29204 (Note 8) Adjust Pin Bias Current Reference Voltage (Note 7) Temperature Coefficient Adjust Pin Bias Current Temperature Coefficient Error Comparator MIC29201, MIC29204 Output Leakage ...
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... 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. At low values of programmed output voltage, the minimum input supply voltage of 4.3V over temperature must be taken into account. The MIC2920A operates down input at reduced output current Note 5: Ground pin current is the regulator quiescent current ...
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... MIC2920A/29201/29202/29204 Typical Characteristics Dropout Voltage vs. Output Current 500 400 300 200 100 0 0 100 200 300 400 OUTPUT CURRENT (mA) Ground Current vs. Output Current 0 100 400 OUTPUT CURRENT (mA) Ground Current vs. Temperature 0.20 0.15 0. 1mA OUT 0.05 0.00 -60 - 120 150 TEMPERATURE ( C) Fixed 3.3V Output Voltage vs ...
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... MIC2920A/29201/29202/29204 MIC29201/2 Shutdown Current vs. Temperaure 125 100 -60 - 120 150 TEMPERATURE ( C) MIC29202 Adjust Pin Current vs. Temperature 1mA 10 LOAD 0 -60 - 120 150 TEMPERATURE ( C) January 1998 Load Transient 200 OUT 100 ...
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... A 0.1 F capacitor should be placed from the MIC2920A input to ground if there is more than 10 inches of wire between the input and the AC filter capacitor battery is used as the input ...
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... Figure 4. MIC29204 Wide Input Voltage Range Current Limiter January 1998 Automotive Applications The MIC2920A is ideally suited for automotive applications for a variety of reasons. It will operate over a wide range of input voltages with very low dropout voltages (40mV at light loads), and very low quiescent currents (100 A typical). These features are necessary for use in battery powered systems, such as automobiles “ ...