NCP1417

Features:

High Efficiency, Up to 92%, Typical
Very Low Device Quiescent Supply Current of 9.0 A Typical
Builtin Synchronous Rectifier (PFET) 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, Can Supply More Than 2.5 mA when V_OUT 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 @ V_in = 2.5 V, V_out = 3.3 V
MultiFunction LBI/Shutdown Control Pin
Dual Open Drain LowBattery Detector Outputs
1.0 A Cycle by Cycle Current Limit
Low Profile and Minimum External Parts
Compact Micro8 Package


Application

Personal Digital Assistants (PDA)
Handheld Digital Audio Product
Camcorders and Digital Still Camera
Handheld Instrument
Conversion from One or Two NiMH or NiCd or One Lithiumion Cells to 3.3 V/5.0 V


Pinout




Specifications

Rating	Symbol	Value	Unit
Device Power Supply (Pin 8)	VOUT	-0.3 to 6.0	V
Input/Output Pins (Pins 1-5, Pin 7)	VIO	-0.3 to 6.0	V
Thermal Characteristics - Micro8 Plastic Package Maximum Power Dissipation @ TA  = 25 Thermal Resistance, Junction-to-Air	PD RJA	520 240	Mw /W
Operating Junction Temperature Range	TJ	-40 to +150
Operating Ambient Temperature Range	TA	-40 to +85
Storage Temperature Range	Tstg	-55 to +150

Description

NCP1417 is a monolithic micropower high frequency Boost (stepup) voltage switching converter IC specially designed for battery operated handheld electronic products up to 200 mA loading. NCP1417 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 LowBattery Detectors and CyclebyCycle Current Limit provide valueadded features for various batteryoperated applications. With all these functions ON, the quiescent supply current of NCP1417 is only 9.0 A typical. This device is available in a space saving compact Micro8 package.