NCP1410

Features:

High Efficiency up to 92%
Very Low Device Quiescent Supply Current of 9.0 A Typical
Allows use of Small Size Inductor and Capacitor
Builtin Synchronous Rectifier (PFET) Eliminates One External Schottky Diode
High Switching Frequency (up to 600 kHz) Allows Use of 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 250 mA @ V_in = 2.5 V, V_out = 3.3 V
LogicControlled Shutdown
Open Drain LowBattery Detector Output
1.0 A CyclebyCycle Current Limit
Low Profile and Minimum External Parts
Compact Micro8 Package


Application

Personal Digital Assistant (PDA)
Handheld Digital Audio Product
Camcorders and Digital Still Camera
Handheld Instrument
Conversion from One or Two NiMH or NiCd, or One Liion Cell 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

NCP1410 is a monolithic micropower high frequency Boost (stepup) voltage switching converter IC specially designed for battery operated handheld 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 of NCP1410 (up to 600 kHz) allows low profile inductor and output capacitor being used. LowBattery Detector, Logic Controlled Shutdown and CyclebyCycle Current Limit provide valueadded features for various batteryoperated applications. With all these functions ON,
the NCP1410 quiescent supply current is only 9.0 A typical. This device is available in space saving compact Micro8 package.