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NCP1411ONN/a7280avaiSync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector and Ring-Killer
NCP1411DMR2ONN/a4768avaiSync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector and Ring-Killer


NCP1411 ,Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector and Ring-KillerFeaturesW = Work Week• Pb−Free Package is Available• High Efficiency, up to 92%PIN CONNECTIONS• Ver ..
NCP1411DMR2 ,Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector and Ring-KillerELECTRICAL CHARACTERISTICS (V = 3.3 V, T = 25°C for typical value, −40°C ≤ T ≤ 85°C for min/max va ..
NCP1411DMR2G ,Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector and Ring-KillerFeaturesW = Work Week• Pb−Free Package is Available• High Efficiency, up to 92%PIN CONNECTIONS• Ver ..
NCP1421 ,600 mA Sync-Rect PFM Step-Up DC-DC converter with True-Cutoff and Ring-KillerELECTRICAL CHARACTERISTICS (V = 3.3 V, T = 25°C for typical value, −40°C  T  85°C for min/max val ..
NCP1421DMR2 ,600 mA Sync-Rect PFM Step-Up DC-DC converter with True-Cutoff and Ring-KillerFeatures• Pb−Free Package is AvailablePIN CONNECTIONS• High Efficiency: 94% for 3.3 V Output at 200 ..
NCP1421DMR2G ,600 mA Sync-Rect PFM Step-Up DC-DC Converter Step-Up DC-DC Converter with True-Cutoff and Ring-KillerELECTRICAL CHARACTERISTICS (V = 3.3 V, T = 25°C for typical value, −40°C  T  85°C for min/max val ..
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NCP1411-NCP1411DMR2
Sync-Rect PFM Step-Up DC-DC Converter with Low-Battery Detector and Ring-Killer
NCP1411
Sync-Rect PFM Step-Up
DC-DC Converter with
Low-Battery Detector and
Ring-Killer
NCP1411 is a monolithic micropower high frequency Boost
(step−up) voltage switching converter IC specially designed for
battery operated hand−held electronic products up to 250 mA loading.
It integrates Synchronous Rectifier for improving efficiency as well as
eliminating the external Schottky Diode. High switching frequency
(up to 600 kHz) allows low profile inductor and output capacitor being
used. Low−Battery Detector, Logic−Controlled Shutdown and
Cycle−by−Cycle Current Limit provide value−added features for
various battery−operated applications. The innovative Ring−Killer
circuitry guarantees quiet operation in discontinuous conduction
mode. With all these functions ON, the device quiescent supply
current is only 9.0 �A typical. This device is available in the space
saving compact Micro8� package.
Features
Pb−Free Package is Available High Efficiency, up to 92% Very Low Device Quiescent Supply Current of 9.0 �A Typical Built−in Synchronous Rectifier (P−FET) Eliminates One External
Schottky Diode High Switching Frequency (up to 600 kHz) Allows use of Small Size
Inductor High Accuracy Reference Output, 1.19 V � 0.6% @ 25°C, can
supply more than 2.5 mA when VOUT ≥ 3.3 V Ring−Killer for Quiet Operation in Discontinuous Conduction Mode 1.0 V Startup at No Load Guaranteed Output Voltage from 1.5 V to 5.5 V Adjustable Output Current up to 250 mA @ VIN = 2.5 V, VOUT = 3.3 V Logic−Controlled Shutdown Open Drain Low−Battery Detector Output 1.0 A Cycle by Cycle Current Limit Low Profile and Minimum External Parts Compact Micro8 Package
Typical Applications
Personal Digital Assistant (PDA) Handheld Digital Audio Product Camcorder and Digital Still Camera Handheld Instrument Conversion from One or Two NiMH or NiCd, or One Li−ion Cell
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