MIC2183YQS Micrel Inc, MIC2183YQS Datasheet
MIC2183YQS
Specifications of MIC2183YQS
MIC2183YQS
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MIC2183YQS Summary of contents
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MIC2183 General Description Micrel’s MIC2183 is a high efficiency PWM synchronous buck control IC. With its wide input voltage range of 2.9V to 14V, the MIC2183 can be used to efficiently step voltages down 2-cell Li Ion ...
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... MIC2183 Ordering Information Part Number Standard Pb-Free MIC2183BM MIC2183YM MIC2183BQS MIC2183YQS Pin Configuration M9999-042205 Output Voltage Frequency Adj. 200/400KHz Adj. 200/400KHz VINA 1 16 VINP FreqOut 2 15 FREQ OUTP COMP 4 13 OUTN SGND 5 12 PGND SYNC EN/UVLO 7 10 VDD CSL 8 9 CSH ...
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MIC2183 Pin Description Pin Number Pin Name 1 VINA 2 FreqOut COMP 5 SGND EN/UVLO 8 CSL 9 CSH 10 VDD 11 SYNC 12 PGND 13 OUTN 14 OUTP 15 FREQ/2 16 VINP April ...
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MIC2183 Absolute Maximum Ratings Supply Voltage ( ......................................... 15V IN IN Digital Supply Voltage (V ) ........................................... 7V DD Comp Pin Voltage (V ) ............................ –0.3V to +3V COMP Feedback Pin Voltage (V ) .......................... –0.3V to ...
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MIC2183 Parameter Condiion Oscillator Section Oscillator Frequency ( Maximum Duty Cycle V FB Minimum On Time V FB Freq/2 Frequency ( Freq/2 Frequency Foldback Threshold Measured on FB Frequency Foldback Frequency SYNC Threshold Level SYNC ...
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MIC2183 Typical Characteristics Quiescent Current vs. Input Voltage 6 400kHz VINA VINP 5 4 200kHz STANDBY INPUT VOLTAGE (V) V vs. Load DD 3.005 3.000 ...
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MIC2183 OUTP Drive Impedance vs. Input Voltage SINK 3 2 SOURCE INPUT VOLTAGE (V) April 2005 7 Micrel, Inc. M9999-042205 ...
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MIC2183 Functional Diagram C DECOUP EN/UVLO 7 VDD 10 VDD fs/4 SYNC 11 FREQ/2 15 OSC FreqOut 2 ÷2 PWM COMPARATOR SS 3 COMP 4 Functional Characteristics Controller Overview and Functional Description The MIC2183 is a BiCMOS, switched mode, synchronous, ...
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MIC2183 The MIC2183 controller is broken down into 7 functions. • Control loop • PWM operation • Current mode control • Current limit • Reference, enable and UVLO • FreqOut • MOSFET gate drive • Oscillator and Sync • Soft-start ...
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MIC2183 MIC2183 1.5V Typical EN/UVLO 140mV (7) R2 Hysteresis (typical) Figure 3. UVLO Circuitry The line voltage turn on trip point is × INPUT ENABLE _ THRESHOLD where the voltage level of ...
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MIC2183 the oscillator frequency is reduced by approximately a factor of 4. Frequency foldback is used to limit the energy delivered to the output during a short circuit fault condition. The SYNC input (pin 11) lets the MIC2183 synchronize with ...
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... SEATING 0.0688 (1.748) PLANE 0.0532 (1.351) MICREL INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA + 1 (408) 944-0800 TEL This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. ...