MIC29371-5.0WT Micrel Inc, MIC29371-5.0WT Datasheet
MIC29371-5.0WT
Specifications of MIC29371-5.0WT
Related parts for MIC29371-5.0WT
MIC29371-5.0WT Summary of contents
Page 1
... The MIC2937 is available in several configurations. The MIC2937A-xx devices are three pin fixed voltage regulators with 3.3V, 5V, and 12V outputs available. The MIC29371 is a fixed regulator offering logic compatible ON/OFF switching input and an error flag output. This flag may also be used as a power-on reset signal ...
Page 2
... MIC2937A-5.0BU MIC2937A-5.0WU MIC2937A-5.0BT MIC2937A-5.0WT MIC2937A-12BU MIC2937A-12WU MIC2937A-12BT MIC2937A-12WT MIC29371-3.3BU MIC29371-3.3WU MIC29371-3.3BT MIC29371-3.3WT MIC29371-5.0BU MIC29371-5.0WU MIC29371-5.0BT MIC29371-5.0WT MIC29371-12BU MIC29371-12WU MIC29371-12BT MIC29371-12WT MIC29372BU MIC29372WU MIC29372BT MIC29372WT * RoHS compliant with ‘high-melting solder’ exemption. MIC2937A/29371/29372 Voltage Junction Temp. Range 3.3V –40ºC to +125ºC 3.3V – ...
Page 3
... Electrical Characteristics Limits in standard typeface are for T = 25°C and limits in boldface apply over the full operating temperature range. Unless other- J wise specified 1V 5mA OUT L (MIC29371-xx and MIC29372 only). Symbol Parameter V Output Voltage O Accuracy ΔV Output Voltage O ΔT Temperature Coef. ...
Page 4
... Current Output Low V = 4.5V IN Voltage I = 250µA OL Upper Threshold (Note 9) Voltage Lower Threshold (Note 9) Voltage Hysteresis (Note 9) MIC29371/MIC29372 Shutdown Input Input Logic Voltage Low (ON) High (OFF) Shutdown Pin V = 2.4V SHUTDOWN Input Current V = 26V SHUTDOWN Regulator Output (Note 10) Current in Shutdown MIC2937A/29371/29372 (Continued) 4 Micrel, Inc ...
Page 5
... R15 100 k Ω R14 350 R16 k Ω R17 30 kΩ 10Ω Q29 Q19 Q28 R21 8 Ω Q31 Q30 SHDN R23 60 k Ω R22 R24 150 k Ω 50 kΩ DENOTES CONNECTION ON MIC2937A-xx AND MIC29371-xx VERSIONS ONLY MIC2937A/29371/29372 Micrel, Inc. . The maximum A ...
Page 6
MIC2937A/29371/29372 Typical Characteristics Dropout Voltage vs. Output Current 500 400 300 200 100 0 0 200 400 600 800 OUTPUT CURRENT (mA) Ground Current vs. Output Current 0 100 1000 OUTPUT CURRENT (mA) Ground Current ...
Page 7
... MIC2937A/29371/29372 MIC29371/2 Shutdown Current vs. Temperaure 125 100 -60 - 120 150 TEMPERATURE ( °C) MIC29372/3 Adjust Pin Current vs. Temperature 1mA 10 LOAD 0 -60 - 120 150 TEMPERATURE ( °C) May 2006 Load Transient 300 µF 150 OUT 0 -150 1000 -300 750 500 5mA 250 0 -250 - TIME (ms) ...
Page 8
... AC filter capacitor battery is used as the input. Error Detection Comparator Output (MIC29371) A logic low output will be produced by the comparator when- ever the MIC29371 output falls out of regulation by more than approximately 5%. This figure is the comparator’s built-in offset of about 75mV divided by the 1.235V reference volt- age. (Refer to the block diagram on Page 1). This trip level remains “ ...
Page 9
MIC2937A/29371/29372 with a bypass capacitor across R , since it reduces the high 1 frequency gain from 4 to unity. Pick C ≅ BYPASS π about 0.01µF. When doing this, the output capacitor must be increased ...
Page 10
MIC2937A/29371/29372 Package Information MIC2937A/29371/29372 3-Pin TO-263 (U) 3-Pin TO-220 (T) 10 Micrel, Inc. May 2006 ...
Page 11
MIC2937A/29371/29372 4 θ May 2006 1 θ 2 θ 1 θ 1 θ 3 θ 2 θ 3 θ 4 θ 5-Pin TO-263 (U) 5-Pin TO-220 (T) 11 Micrel, Inc. MIC2937A/29371/29372 ...
Page 12
... MIC2937A/29371/29372 MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...