MIC2169BMM Micrel Inc, MIC2169BMM Datasheet
MIC2169BMM
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MIC2169BMM Summary of contents
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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 1 10 BST VDD COMP 10-Pin MSOP (MM) Pin Function Supply Voltage (Input ...
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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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... R13 7 4 IRF7821 LSD RES 5 FB MIC2169BMM Evaluation Board Schematic 13 maximize effi ciency, such as Si4800, Si4804BDY, IRF7821, IRF8910, FDS6680A and FDS6912A, etc. ground, chip ground should all run together and connect to the output capacitor ground. See demo board layout, top layer. ...
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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 TPSD337M006R0045 C8 594D337X06R3D2T C9 ,C11. C13 C2012X7R1C105K GRM21BR71C105KA01B. muRata VJ1206S105KXJAT C14 C15 VJ0603A102KXXAT C16 VJ0603Y104KXXAT R2 CRCW06034700JRT1 ...
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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 ...