MIC2169BMM TR Micrel Inc, MIC2169BMM TR Datasheet

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General Description The MIC2169 is a high-effi ciency, simple to use 500kHz PWM synchronous buck control IC housed in a small MSOP-10 package. The MIC2169 allows compact DC/DC solutions with a minimal external component count and cost. The MIC2169 operates ...

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Ordering Information Part Number Pb-Free Part Number MIC2169BMM MIC2169YMM Pin Confi guration Pin Description Pin Number Pin Name 1 VIN 2 VDD 3 4 COMP 5 6 GND 7 LSD 8 VSW 9 HSD 10 BST M9999-032409 Frequency 500kHz VIN ...

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Absolute Maximum Ratings Supply Voltage (V ) ................................................... 15.5V IN Booststrapped Voltage (V ) .................................V BST ) ..................–40°C ≤ T Junction Temperature (T J Storage Temperature (T ) ........................ –65°C to +150 °C S Electrical Characteristics T = 25°C, V ...

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Electrical Characteristics Parameter Condition Gate Drivers Rise/Fall Time Into 3000pF at V Output Driver Impedance Source, V Sink, V Source, V Sink, V Driver Non-Overlap Time Note 6 Notes: 5. Specifi cation for packaged product only. 6. Guaranteed by design. ...

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Typical Characteristics PWM Mode Supply Current vs. Temperature 2.9 2.7 2.5 2.3 2.1 1.9 1.7 1.5 1.3 1.1 0.9 0.7 0.5 -40 - 100120140 TEMPERATURE (°C) V vs. Temperature FB 0.806 ...

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Functional Diagram LDO 5V 5V 0.8V Bandgap Reference BG Valid 5V Clamp & Startup Soft-Start & Current Digital Delay Counter Ramp Clock Enable Error Loop 0.8V Error Amp COMP Functional ...

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V within ±3% of steady state. When the output voltage reaches 97% of programmed output voltage, then the g is enabled along with the hysteretic comparator. From this point onwards, the voltage control ...

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V = 4.5V must be used important to note the on-resistance of a MOSFET increases with rising temperature. A 75°C rise in junction temperature will increase the channel resistance of the MOSFET by 50% to 75% ...

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I I max 0 OUT PP The RMS inductor current is used to calculate the I losses in the inductor × max INDUCTOR(rms) OUT Maximizing effi ciency requires ...

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Error Amp V REF 0.8V MIC2169 [adj.] Figure 2. Voltage-Divider Confi guration Where: V for the MIC2169 is typically 0.8V REF The output voltage is determined by the equation: ⎛ ⎞ × ⎜ ⎟ ...

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Figure 5. Phase Curve for G(s) It can be seen from the transfer function G(s) and the gain curve that the output inductor and capacitor ...

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Figure 8. Error Amplifi er Phase Curve Total Open-Loop Response The open-loop response for the MIC2169 controller is easily obtained by adding the power ...

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Design Example Layout and Checklist: 1. Connect the current limiting (R2) resistor directly to the drain of top MOSFET Q3. 2. Use a 5Ω resistor from the input supply to the VIN pin on the MIC2169. Also, place a 1μF ...

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MIC2169BMM Bill of Materials Item Part Number U1 MIC2169-YMM Q2, Q3 IRF7821-TR SI4390DY D1 SD103BWS D2 1N5819HW SL04 CMMSH1-40 L1 CDRH127LDNP-1R0NC HC5-1R0 SER1360-1R0 C1 C3225X7R1C106M C2 , C3. TPSD686M020R0070 594D686X0020D2T C4 C2012X5R0J106M CM21X5R106M06AT C5, C10 , C12 VJ1206Y104KXXAT C6, C7 ...

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Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for ...