HomedatasheetNCP1575DR2G

NCP1575DR2G Datasheet

DC/DC Switching Controllers
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Description

The NCP1575DR2G is a low voltage buck controller. It provides the control for a DC−DC power solution producing an output voltage as low as 0.980 V over a wide current range. It contains all required circuitry for a synchronous NFET buck regulator using the V2 control method to achieve the fastest possible transient response and best overall regulation. The NCP1575 operates at a default switching frequency of 200 kHz, but switching frequency is user−programmable with an additional resistor between ROSC and ground. This device provides undervoltage lockout protection, soft−start, and built−in adaptive nonoverlap and is assembled in an SOIC−8 package.The NCP1575DR2G−based solution requires a bias supply of 12 V, and it can convert from a bulk power supply ranging from 2 V to 12 V.Conversion from bulk supplies greater than 7 V is best accomplished by using an external doubler circuit to raise the enhancement voltage for the external NFET switches. NCP1575DR2G Features • Pb−Free Packages are Available• 0.980 V ±1.0% Reference Voltage• V2 Control Topology• 200 ns Transient Response• Programmable Soft−Start• 40 ns Gate Rise and Fall Times (3.3 nF Load)• Adaptive FET Nonoverlap Time• Default 200 kHz Oscillator Frequency (No External Resistor Required)• User−Programmable Oscillator Frequency (One External Resistor Required)• Undervoltage Lockout• On/Off Control Through Use of the COMP Pin• Overvoltage Protection through Synchronous MOSFETs• Synchronous N−Channel Buck Design• "12 V Only" or Dual Supply Operation
Features

Parameters

[{"Name":"Manufacturer","Value":"ON Semiconductor "},{"Name":"Product Category","Value":"DC/DC Switching Controllers "},{"Name":"Input Voltage","Value":"2 V to 12 V "},{"Name":"Switching Frequency","Value":"200 kHz "},{"Name":"Mounting Style","Value":"SMD/SMT "},{"Name":"Package / Case","Value":"SOIC-8 "},{"Name":"Packaging","Value":"Reel "}]

Manufacturer information

PMC-SIERRA, INC
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