AT1368

Features:

• High efficiency (min. 90% On IO=300mA~600mA)
• Using external P and N channel MOSFET
• Supports for down and up/down Zeta conversion
• Maximum Duty 100%
• Oscillation frequency 300KHz or 600KHz
• Soft Start by an external capacity
• Output voltage accuracy ±2%
• Built-in ON/OFF Function
• Built-in Short-circuit Protection
• Stand-by current max. 10µA
• Quiescent Current 1mA
• Monitor the input voltage and 3V3 output
• Input voltage: 2.5V ~7.0V



Application

• Slim-Type CD-ROM/DVD-ROM/CD-RW
• Power Supply for portable devices
• Main or Sub Power source foe notebook computers and peripherals.


Pinout




Specifications

Parameter	Condition	Rated Value		Unit
		Min.	Max.
Power supply voltage	-	-	+8	V
Source Average Current of PDRV, NDRV	-	-	-50	mA
Sink Average Current of PDRV, NDRV	-	-	50	mA
Source Peak Current of PDRV, NDRV	-	-	-200	mA
Sink Peak Current of PDRV, NDRV	-	-	200	mA
Input Voltage to Error Amplifier	-	-	6.5	V
Continuous power dissipation	SSOP16(Ta=+25)	-	560	mW
Operating temperature	-	-30	+85
Storage temperature	-	-55	125

Description

The AT1368 provides complete control and protection for a DC/DC converter optimized for high-performance micro-processor applications. AT1368 is designed to drive one P-Channel and one NChannel MOSFETs in a synchronous-rectified buck topology. The AT1368 integrates all of the control, output adjustment, monitoring and protection functions into a single package. The output voltage of the converter can be precisely regulated with a maximum tolerance of ±2% over temperature and line voltage variations. The AT1368 is a family of low-noise synchronous stepdown DC/DC converters that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 3-cell to 4-cell NiCd, NiMH, or alkaline battery. AT1368 can also be used to USB-Based power system.