MIC2940A-3.3BT Micrel Inc, MIC2940A-3.3BT Datasheet
MIC2940A-3.3BT
Specifications of MIC2940A-3.3BT
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MIC2940A-3.3BT Summary of contents
Page 1
... General Description The MIC2940A and MIC2941A are “bulletproof” efficient voltage regulators with very low dropout voltage (typically 40mV at light loads and 350mV at 1A), and low quiescent current (240µA typical). The quiescent current of the MIC2940A increases only slightly in dropout, thus prolonging battery life ...
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... Micrel, Inc. Ordering Information Part Number MIC2940A-3.3BT MIC2940A-3.3BU MIC2940A-3.3WT MIC2940A-3.3WU MIC2940A-5.0BT MIC2940A-5.0BU MIC2940A-5.0WT MIC2940A-5.0WU MIC2940A-12BT MIC2940A-12BU MIC2940A-12WT MIC2940A-12WU MIC2941ABT MIC2941ABU MIC2941AWT MIC2941AWU Note: 1. RoHS compliant with ‘hot-melting solder’ exemption. Schematic Diagram July 2007 Voltage Temperature Range 3.3V –40° to +125°C 3.3V – ...
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... 5mA 250mA 1000mA 1250mA 0.5V less than designed 5mA (Note 6) OUT (Note 10µ 33µ MIC2940A/2941A Min Typ –1 –2 –2.5 20 ≤ 26V 0.06 0.04 60 200 350 400 240 3.3) 330 OUT OUT 1.6 0.05 400 260 † to 26V Max Units ...
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... Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin current. 6. The MIC2940A features fold-back current limiting. The short circuit (V voltage. 7. Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation effects. Specifi ...
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... Short Circuit and Maximum Current vs. Temperature 2.0 1 – 0.5V OUT NOMINAL 1.6 1.4 1.2 1.0 0 OUT 0.6 FIXED 3.3V 0.4 VERSION 0.2 3 SAMPLES 0.0 -60 - 120 150 TEMPERATURE (°C) 5 MIC2940A/2941A Dropout Characteristics 5mA LOAD 1.25A LOAD INPUT VOLTAGE (V) Ground Current vs. Supply Voltage FIXED 3 ...
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... OUT 0 -20 - -0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 TIME (ms) Output Impedance vs. Frequency 10mA LOAD 0.01 FREQUENCY (Hz) 6 MIC2940A/2941A Load Transient 200 C = 100 µF 100 OUT 0 -100 -200 2.0 1.5 1.0 5mA 0.5 0.0 -0 TIME (ms) Line Transient 100 µ ...
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... The external resistors of the MIC2941A version may be scaled to draw this minimum load current. A 0.22µF capacitor should be placed from the MIC2940A 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. Programming the Output Voltage (MIC2941A) The MIC2941A may be programmed for any output voltage between its 1 ...
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... Micrel, Inc. Typical Applications OUT GND Figure 2. MIC2940A-5.0 Fixed +5V Regulator + OUT GND ADJUST * Minimum Input-Output Voltage Ranges from 40mV to 400mV, depending on Load Current. Figure 4. MIC2941A Wide Input Voltage Range Current Limit July 2007 OUT S HUTDOWN INPUT + 10µ OUT = SHUTDOWN V OUT = V IN ...
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... Micrel, Inc. Package Information July 2007 3-Pin TO-220 (T) 3-Pin TO-263 (U) 9 MIC2940A/2941A M9999-071307 ...
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... Micrel, Inc. July 2007 5-Pin TO-220 (T) 5-Pin TO-263 (U) 10 MIC2940A/2941A M9999-071307 ...
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... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully July 2007 indemnify Micrel for any damages resulting from such use or sale. © 2004 Micrel, Incorporated. 11 MIC2940A/2941A M9999-071307 ...