MIC2605 MICREL [Micrel Semiconductor], MIC2605 Datasheet
MIC2605
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MIC2605 Summary of contents
Page 1
... The fixed frequency PWM scheme also reduces spurious switching noise and ripple to the input power source. The MIC2605/6 is available in an 8-pin 2mm x 2mm MLF leadless package. This package has an output over- voltage protection feature. The MIC2605/6 has an operating junction temperature ° ...
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... Enable (Input): Logic high enables regulator. Logic low shuts down regulator. Soft start Feedback (Input): 1.25V output voltage sense node. V Switch Node (Input): Internal power BIPOLAR collector. Power ground Exposed backside pad for thermal cooling. 2 MIC2605/6 (2) Package Lead Finish ® 8-Pin 2mm x 2mm MLF Pb-Free ® ...
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... I Switch Current Limit SW V Switch Saturation Voltage SW I Switch Leakage Current SW V Enable Threshold EN I Enable Pin Current EN f Oscillator Frequency (MIC2605) SW Oscillator Frequency (MIC2606) V Schottky Forward Drop D I Schottky Leakage Current RD V Output Over-voltage Protection OVP T Over-temperature Threshold J Shutdown Notes: 1 ...
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... LOAD CURRENT (mA) Switch Current Limit vs. Temperature 1.00 0.95 0.90 0.85 0.80 0. 12V IN 0.70 -40 - 100 120 TEMPERATURE (°C) 4 MIC2605/6 Max Duty Cycle vs. Input Voltage INPUT VOLTAGE (V) Switch Current Limit vs ...
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... V = 12V IN 0.065 -40 - 100 120 TEMPERATURE (°C) 5 MIC2605/6 Frequency vs. Temperature 2.0 MIC2606 1.8 1.6 1.4 1.2 MIC2605 1.0 -40 - 100 120 TEMPERATURE (°C) Quiescent Current vs. Temperature 4.30 4.28 4.26 4.24 4.22 4.20 4.18 4.16 4.14 4. 12V IN 4.10 -40 - 100 120 TEMPERATURE (°C) M9999-080108-B ...
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... Micrel, Inc. Functional Characteristics August 2008 6 MIC2605/6 M9999-080108-B ...
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... Micrel, Inc. Functional Diagram VIN VDD Regulator EN 5.8V Bandgap 1.25V SS August 2008 FB OVP CMP OSC EA PWM CMP OSC 1.2/2MHz Ramp Oscillator Generator Figure 1. MIC2605/6 Block Diagram 7 OVP CL THERMAL UVLO BANDGAP MIC2605/6 VOUT SW PGND M9999-080108-B ...
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... Micrel, Inc. Functional Description The MIC2605 constant frequency, PWM current mode boost regulator. The block diagram is shown in Figure 1. The MIC2605/6 is composed of an oscillator, slope compensation ramp generator, current amplifier, g error amplifier, PWM generator, and a 0.5A bipolar m output transistor. The oscillator generates a 1.2MHz/ 2MHz clock. The clock’ ...
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... Input capacitor A minimum 1μF ceramic capacitor is recommended for designing capacitance will improve performance and greater noise immunity on the source. The input capacitor should be as close as possible to the inductor and the MIC2605/6, with short traces for good noise performance. 9 MIC2605 ⋅ ...
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... Micrel, Inc. Feedback Resistors The MIC2605/6 utilizes a feedback pin to compare the output to an internal reference. The output voltage is adjusted by selecting the appropriate feedback resistor network values. The R2 resistor value must be less than or equal to 1kΩ (R2 ≤ 1kΩ). The desired output voltage ...
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... C5 N.U. LQH43CN100K03 L1 VLCF4020T-100MR85 R1 CRCW06031242FKEA R2 CRCW06034990FKEA R3 CRCW060310K0FKEA U1 MIC2605/6-YML Notes: 1. TDK: www.tdk.com 2. AVX: www.avx.com 3. Vishay: www.vishay.com 4. Murata: www.murata.com 6. Micrel, Inc.: www.micrel.com August 2008 L1 10µ MIC2605/6-YML 2 VIN SW C1 VOUT VDD SS C2 0.1µF/50V Manufacturer (1) TDK (2) AVX (2) AVX (3) Vishay (2) AVX ...
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... Micrel, Inc. PCB Layout Recommendations August 2008 Top Layer Bottom Layer 12 MIC2605/6 M9999-080108-B ...
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... 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 August 2008 8-Pin 2mm x 2mm MLF indemnify Micrel for any damages resulting from such use or sale. © 2008 Micrel, Incorporated. 13 ® (ML) MIC2605/6 M9999-080108-B ...