NCP1417
200 mA DC−DC Step−up
Converter with Dual Low
Battery Protection
NCP1417 is a monolithic micropower high frequen...
NCP1417
200 mA DC−DC Step−up
Converter with Dual Low
Battery Protection
NCP1417 is a monolithic micropower high frequency Boost (step−up) voltage switching converter IC specially designed for battery operated hand−held electronic products up to 200 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 use of a low profile inductor and output capacitor. Dual Low−Battery Detectors and Cycle−by−Cycle Current Limit provide value−added features for various battery−operated applications. With all these functions ON, the quiescent supply current is only 9.0 mA typical. This device is available in a space saving compact Micro8t package.
Features
High Efficiency, Up to 92%, Typical Very Low Device Quiescent Supply Current of 9.0 mA Typical Built−in Synchronous Rectifier (P−FET) Eliminates One External
Schottky Diode
High Switching Frequency (Up to 600 kHz) Allows Small Size
Inductor and Capacitor
High Accuracy Reference Output, 1.19 V ± 0.6% @ 25_C, Can
Supply More Than 2.5 mA when VOUT ≥ 3.3 V
1.0 V Startup at No Load Guaranteed Output Voltage from 1.5 V to 5.5 V Adjustable Output Current Up to 200 mA @ Vin = 2.5 V, Vout = 3.3 V Multi−Function LBI/Shutdown Control Pin Dual Open Drain Low−Battery Detector Outputs 1.0 A Cycle by Cycle Current Limit Low Profile and Minimum External Parts Compact Micro8 Package
Applications
Personal Digital A...