SP34063A Datasheet, PDF (1/9 Pages) Sipex Corporation – 1.5A Buck/Boost/Inverting DC-DC Switching Regulator

February 2011
SP34063A
1.5A Buck/Boost/Inverting DC-DC Regulator
Rev. 2.1.0
GENERAL DESCRIPTION
The SP34063A is a monolithic switching
regulator control circuit containing the primary
functions required for DC-DC converters.
This device consists of an 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 buck, boost, and
Voltage-Inverting applications with a minimum
number of external components.
The SP34063A is available in the 8 pin NSOIC
package.
TYPICAL APPLICATION DIAGRAM
APPLICATIONS
• Battery Charger Circuit
• NICs/Switches/Hubs
• ADSL Modems
• Negative Voltage Power Supply
FEATURES
• Supply Voltage: 3V - 36V
• Current Limiting
• Output Switch Current to 1.5A
• Adjustable Output Voltage
• Operation frequency up to 180KHz
• Low Quiescent Current
• Precision 2% Reference
• Available in 8 pin NSOIC Package
Fig. 1: SP34063A Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] – Fax. [phone]