NCP1597AMNTWG ONSEMI [ON Semiconductor], NCP1597AMNTWG Datasheet
NCP1597AMNTWG
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NCP1597AMNTWG Summary of contents
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... Microdot may be in either location) PIN CONNECTIONS FB 1 GND ORDERING INFORMATION Device Package NCP1597AMNTWG DFN6 (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. 1 Publication Order Number: MARKING DIAGRAM ...
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NCP1597A VCC Power Reset UVLO NC/EN THD Hiccup Soft−Start + gm Vref + FB − PIN DESCRIPTIONS Pin No Symbol 1 FB Feedback input pin of the Error Amplifier. Connect a resistor divider from the converter’s output voltage to this ...
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V in 4.0 V − 5.5 V ABSOLUTE MAXIMUM RATINGS Rating Power Supply Pin (Pin GND LX to GND All other pins Operating Temperature Range Junction Temperature Storage Temperature Range Thermal Resistance Junction−to−Air (Note 1) Stresses exceeding ...
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ELECTRICAL CHARACTERISTICS (V = 4.0 V − +25°C for typical value; −40°C < out J Parameter V Input Voltage Range in V UVLO Threshold CC UVLO Hysteresis V Quiescent Current ...
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TYPICAL OPERATING CHARACTERISTICS 3.7 3.6 3.5 UVLO Rising Threshold 3.4 3.3 UVLO Falling Threshold 3.2 3.1 −40 − AMBIENT TEMPERATURE (°C) A Figure 3. Undervoltage Lockout vs. Temperature 1.3 1.2 1.1 1.0 0.9 0.8 0.7 −40 ...
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TYPICAL OPERATING CHARACTERISTICS 3. 3.3 V 3.38 OUT L = 3 OUT 3.34 3.32 3.30 3.28 3.26 3.24 3.22 3.20 0 0.2 0.4 0.6 0.8 1.0 1 OUTPUT ...
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100 mA 3.3 mH LOAD OUT Upper Trace: L Pin Switching Waveform, 2 V/div X Middle Trace: Output Ripple Voltage, 20 mV/div Lower Trace: Inductor Current, 1 A/div Figure 15. ...
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100 mA 3.3 mH LOAD OUT Upper Trace: Output Dynamic Voltage, 100 mV/div Lower Trace: Output Current, 500 mA/div Figure 21. Transient Response for V 3 ...
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Overview The NCP1597A is a synchronous PWM controller that incorporates all the control and protection circuitry necessary to satisfy a wide range of applications. The NCP1597A employs current mode control to provide fast transient response, simple compensation, and excellent stability. ...
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Undervoltage Lockout (UVLO) The under voltage lockout feature prevents the controller from switching when the input voltage is too low to power the internal power supplies and reference. Hysteresis must be incorporated in the UVLO comparator to prevent IxR drops ...
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Programming the Output Voltage The output voltage is set using a resistive voltage divider from the output voltage to FB pin (see Figure 25). So the output voltage is calculated according to Eq. ...
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Calculate the power lost in the NCP1597A using the following equations: 1. High side MOSFET The conduction loss in the top switch is HSON RMS_HSFET Where out ...
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D PIN 1 REFERENCE Ç Ç Ç 2X Ç Ç Ç 0.15 C Ç Ç Ç 2X 0.15 C TOP VIEW 0. 0.08 C (A3) SIDE VIEW BOTTOM VIEW ...