AZ34063A

Features:

• Operation from 3.0V to 36V Input
• Low Standby Current
• Current Limiting
• Output Switch Current to 1.5A
• Output Voltage Adjustable
• Operation Frequency up to 180KHz
• Precision 2% Reference


Application

Battery Chargers
NICs/ Switches/ Hubs
ADSL Modems
Negative Voltage Power Supplies


Pinout





Specifications

Parameter	Symbol	Value	Unit
Power Supply Voltage	VCC	40	V
Comparator Input Voltage Range	VIR	-0.3 to 7	V
Switch Collector Voltage	VC(switch)	40	V
Switch Emitter Voltage (Vpin1=40V)	VE(switch)	40	V
Switch Collector to Emitter Voltage	VCE(switch)	40	V
Driver Collector Voltage	VC(driver)	40	V
Driver Collector Current (Note 2)	IC(driver)	100	mA
Switch Current	ISW	0.8	A
Power Dissipation and ThermalCharacteristics Plastic Package, Power Dissipation (TA = 25 ) Thermal Resistance SOIC Package, Power Dissipation (TA = 25 ) Thermal Resistance
	PD	1.25	W
	RJ	100	􀄇 /W
	PD	625	mW
	RJA	160	􀄇 /W
Operating Junction Temperature	TJ	150	􀄇
Storage Temperature Range	TSTG	-65 to 150
ESD (Human body model)		2000	V

Description

The AZ34063A is a monolithic switching regulator control circuit containing the primary functions required for DC-DC converters. The AZ34063A consists of internal temperature compensated reference, voltage comparator, controlled duty cycle oscillator with active current limit circuit, driver and high current output switch. This device was specifically designed to be used in Step-Down, Step-Up and Voltage-Inverting applications with a minimum number of external components.

The AZ34063A is available in 2 packages: SOIC-8 and DIP-8.