MIC3775 Micrel Semiconductor, MIC3775 Datasheet
MIC3775
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MIC3775 Summary of contents
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... Super eta PNP™ pass element, the MIC3775 offers ex- tremely low-dropout (typically 280mV at 750mA) and low ground current (typically 7.5mA at 750mA). The MIC3775 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V or 3.0V, 3.3V to 2.5V or 2.5V to 1.8V or 1.65V. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the MIC3775 to provide 2 ...
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... Flag (Output): Open-collector error flag output. Active low = output under- voltage. ADJ Adjustment Input: Feedback input. Connect to resistive voltage-divider network. OUT Regulator Output. GND Ground GND GND ADJ 3 6 GND OUT 4 5 GND MIC3775 Adjustable MSOP-8 (MM) March 2003 Micrel ...
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... OUT 0. 750mA, 0.2 OUT 40 125 210 280 + 1V 700 + 1V 3 7.5 1.6 2. 0.01 250 93 1 1.227 1.240 1.215 40 Micrel Max Units 0 ppm/ C 200 mV 250 mV mV 500 2 500 1.252 V 1.265 120 nA MIC3775 ...
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... OUT OUT voltage is the input-to-output voltage differential with the minimum input voltage being 2.25V. Minimum input operating voltage is 2.25V. Note the quiescent current GND IN MIC3775 (T – where T OUT(worst case) J(max) J(min GND OUT 4 is +125 C and T is – ...
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... FREQUENCY (KHz) Dropout vs. Temperature 400 350 300 2.5V OUT 250 200 150 100 50 0 -40 - 100 120 TEMPERATURE ( C) Dropout Characteristics (2.5V) 3.0 2.5 2.0 750mA Load 1.5 10mA Load 1.0 0.5 0 1.5 2 2.5 3 3.5 INPUT VOLTAGE (V) Ground Current vs. Supply Voltage (1.5V) 0.8 0.7 0.6 100mA 0.5 0.4 0.3 0.2 10mA 0 INPUT VOLTAGE (V) MIC3775 ...
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... INPUT VOLTAGE (V) Ground Current vs. Temperature 2.5V OUT OUT =750mA 0 -40 - 100 120 TEMPERATURE ( C) MIC3775 Ground Current vs. Supply Voltage (1.8V) 0.8 0.7 0.6 100mA 0.5 0.4 0.3 0.2 10mA 0 INPUT VOLTAGE (V) Ground Current vs. Supply Voltage (2.5V) 18 ...
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... FLAG CURRENT (mA) Enable Current vs. Temperature 2. -40 - 100 120 TEMPERATURE ( C) 7 Micrel Flag Low Voltage vs. Temperature 350 300 250 200 150 100 50 Flag Current = 250 A 0 -40 - 100 120 TEMPERATURE ( C) MIC3775 ...
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... MIC3775 Functional Characteristics Load Transient Response C OUT 750mA 10mA TIME (200 s/div) Line Transient Response 5V C OUT TIME (200 s/div) MIC3775 2.5V OUT = 10 F Ceramic 3. 2.5V OUT = 10 F Ceramic 8 Load Transient Response 2.5V OUT Ceramic OUT 750mA 10mA TIME (200 s/div) ...
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... MIC3775 Functional Diagrams IN FLAG EN MIC3775 Fixed Regulator with Flag and Enable Block Diagram IN EN March 2003 1.180V 1.240V Ref. 1.240V Ref. Thermal Shut- down MIC3775 Adjustable Regulator Block Diagram 9 Thermal Shut- down OUT ADJ GND Micrel OUT GND MIC3775 ...
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... Figure 1. Capacitor Requirements Output Capacitor The MIC3775 requires an output capacitor for stable opera- tion Cap LDO, the MIC3775 can operate with ceramic output capacitors as long as the amount of capacitance greater. For values of output capacitance lower than 10 F, the recommended ESR range is 200m minimum value of output capacitance recommended for the MIC3775 is 4 ...
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... Power MSOP-8 Thermal Characteristics One of the secrets of the MIC3775’s performance is its power MSOP-8 package featuring half the thermal resistance of a standard MSOP-8 package. Lower thermal resistance means more output current or higher input voltage for a given package size ...
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... D From Figure 4, the minimum amount of copper required to operate this application 160mm MIC3775 Quick Method Determine the power dissipation requirements for the design along with the maximum ambient temperature at which the device will be operated. Refer to Figure 5, which shows safe operating curves for three different ambient temperatures and 85 C ...
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... MIC3775 Package Information 0.122 (3.10) 0.112 (2.84) 0.036 (0.90) 0.032 (0.81) 0.012 (0.3) 0.0256 (0.65) TYP March 2003 0.199 (5.05) DIMENSIONS: 0.187 (4.74) INCH (MM) 0.120 (3.05) 0.116 (2.95) 0.043 (1.09) 0.038 (0.97) 0.012 (0.30) R 0.008 (0.20) 5 MAX 0.004 (0.10) 0 MIN 0.039 (0.99) 0.035 (0.89) 0.021 (0.53) 8-Lead MSOP (MM) 13 Micrel 0.007 (0.18) 0.005 (0.13) 0.012 (0.03) R MIC3775 ...
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... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify MIC3775 + 1 (408) 944-0970 ...