NCP5380MNR2G ON Semiconductor, NCP5380MNR2G Datasheet
NCP5380MNR2G
Specifications of NCP5380MNR2G
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NCP5380MNR2G Summary of contents
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... NCP5380 FBRTN FB (Top View) COMP GND ILIM ORDERING INFORMATION Device Package NCP5380MNR2G QFN−32 (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 ...
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EN 32 IREF 10 31 RPM VID1 VID2 12 29 RAMP VID3 13 28 LLINE VID4 14 VID5 27 CSREF 26 15 CSFB VID6 16 25 CSCOMP VID7 Figure 1. Application Schematic http://onsemi.com 2 ...
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GND COMP FB REF LLINE DAC + 200 mV CSREF DAC − 300 mV PWRGD Open PWRGD Drain N/C Precision FBRTN Reference ELECTRICAL CHARACTERISTICS Current entering a pin (sunk by the device) has a positive sign. Parameter VOLTAGE CONTROL VOLTAGE ...
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ELECTRICAL CHARACTERISTICS Current entering a pin (sunk by the device) has a positive sign. Parameter VOLTAGE CONTROL VOLTAGE ERROR AMPLIFIER (VEAMP) COMP Slew Rate Gain Bandwidth (Note 2) VID DAC VOLTAGE REFERENCE VDAC Voltage Range (Note 2) VDAC Accuracy VDAC ...
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ELECTRICAL CHARACTERISTICS Current entering a pin (sunk by the device) has a positive sign. Parameter CURRENT SENSE AMPLIFIER Gain Bandwidth Product (Note 2) Slew Rate (Note 2) Input Common−Mode Range (Note 2) Output Voltage Range Output Current SWITCH AMPLIFIER Common−Mode ...
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ELECTRICAL CHARACTERISTICS Current entering a pin (sunk by the device) has a positive sign. Parameter POWER GOOD PWRGD delay Time CURRENT MONITOR IMON Output Current IMON Output Current IMON Clamp HIGH−SIDE MOSFET DRIVER Output Resistance, Sourcing Current Output Resistance, Sinking ...
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Timing Diagram Timing is referenced to the 90% and 10% points, unless otherwise noted. IN tpdl DRVL DRVL tpdh DRVH (WITH RESPECT TO SW) SW ABSOLUTE MAXIMUM RATING VCC FBRTN, PGND BST BST to SW DRVH, SW DRVH to SW ...
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Pin Function Descriptions Pin No. Mnemonic 1 PWRGD Power−Good Output. Open−drain output. A low logic state means that the output voltage is outside of the VID DAC defined range. 2 IMON Current Monitor Output. This pin sources current proportional to ...
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20°C to 100°C, unless otherwise noted. VID A Output Voltage Switch Node Low Side Gate Drive Figure 4. DCM Waveforms Load Current Output Voltage Switch Node Load Current Figure 6. Load Transient, ...
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The NCP5380 is a ramp−pulse−modulated (RPM) controller for synchronous buck power supply. The internal 7−bit VID DAC conforms to the Intel VR11 specifications. The NCP5380 is a stable, high performance architecture that includes • High speed response at the lowest ...
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RAMP Clock Oscillator + 0 Ramp + - COMP Master Clock Frequency in PWM Mode When ...
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DCR sensing, signals from the switch node side of the output inductors) are connected with a resistor. The feedback resistor between the CSCOMP and CSFB pins sets the gain of the current sense amplifier, ...
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Current Limit, Short−Circuit, and Latch−Off Protection The NCP5380 has an adjustable current limit set by the R resistor. The NCP5380 compares a programmable CLIM current−limit set point to the voltage from the output of the current−sense amplifier. The level of ...
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Q1 DRVH SWITCH L NODE INPUT Q2 + − VOLTAGE DRVL Figure 16. Buck Topology − OFF Figure 17. Buck Topology Inductor Current During t and OFF L + − ON Figure 18. Buck ...
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Reverse Voltage Protection Very large reverse current in inductors can cause negative output voltage, which is harmful to the chipset and other output components. The NCP5380 provides a reverse voltage protection (RVP) function without additional system cost. The output voltage ...
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VID Codes (FBRTN = 112.5 mV) VID7 VID6 VID5 ...
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VID Codes (FBRTN = 112.5 mV) VID7 VID6 VID5 ...
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The design parameters for a typical VR11−compliant CPU core VR application are as follows: • Maximum Input Voltage (V INMAX • Minimum Input Voltage ( INMIN • Output Voltage by VID Setting (V VID • Maximum ...
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RPM operation. However, the V ripple specification of VR11 sets a CC limitation for the lowest switching frequency. Therefore, depending on the inductor and output capacitors, the switching frequency in RPM can be equal to, ...
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Where R is the DCR of the output inductors. SENSE Either RCS or RPH can be chosen for added flexibility. Due to the current drive ability of the CSCOMP pin, the RCS resistance should be greater than 100 kW. For ...
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Additional ceramic capacitors can be placed along the outer edge of the socket. A combined ceramic capacitor value recommended and is usually composed of ...
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R MOSFET should be less than 13 room temperature high temperature. Another important factor for the synchronous MOSFET is the input capacitance and feedback capacitance. The ratio of ...
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A resistor from IMON to FBRTN sets the MON gain of the output current monitor placed in parallel with R to filter the inductor current ripple and MON high frequency load transients. Since ...
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VID Where: R’ is the ...
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Set the AC Load Line 1. Remove the dc load from the circuit and connect a dynamic load. 2. Connect the scope to the output voltage and set coupling mode with a time scale of 100 ms/div. ...
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LAYOUT AND COMPONENT PLACEMENT The following guidelines are recommended for optimal performance of a switching regulator system. General Recommendations 1. For best results, use a PCB of four or more layers. This should provide the needed versatility ...
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... X 0. 0.28 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81− ...