DatasheetsPDF.com

SC1402

Part Number	SC1402
Manufacturer	Semtech Corporation
Description	Multi-Output/ Low-Noise Power Supply Controller for Notebook Computers
Published	Apr 8, 2005
Detailed Description	Multi-Output, Low-Noise Power Supply Controller for Notebook Computers December 15, 2000 SC1402 TEL:805-498-2111 FAX:8...
Datasheet	SC1402 PDF File

Overview

Multi-Output, Low-Noise Power Supply Controller for Notebook Computers December 15, 2000 SC1402 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.
semtech.
com DESCRIPTION The SC1402 is pin compatible with the MAX1632 with improved load regulation performance.
The SC1402 is a multiple-output power supply controller designed to power logic supply components in battery operated systems.
The SC1402 utilizes synchronous rectified buck topologies to generate two voltages, (3.
3V and 5V) with up to 95% efficiency.
It also provides two linear regulators for system housekeeping functions.
The 12V linear regulator output is generated from a coupled inductor of the 5V switching regulator.
Control functions include: power up sequencing, soft start, power-good signaling, automatic bootstrapping for high side MOSFETs, and frequency synchronization.
An internal precision 2.
5V reference ensures ±2% output voltage.
The internal oscillator can be adjusted to 200kHz, 300kHz or synchronized to an external clock.
The MOSFET drivers provide 1A peak drive current for fast MOSFET switching.
The SC1402 includes a PSAVE enable input to select a pulse skipping mode for high efficiency or a fixed frequency mode for low noise operation.
FEATURES •= 6V to 30V Input range •= 3.
3V and 5V dual synchronous rectified outputs •= Fixed frequency or PSAVE for maximum efficiency •= •= •= •= •= •= •= •= •= •= over wide load current range 5V/50mA linear regulator 12V/120mA linear regulator Precision 2.
5V reference output Programmable power-up sequence Power good output (RESET) Output over current protection Output over voltage protection Output under voltage shut down 4µA typical shut down current 7mW typical quiescent power APPLICATIONS •= Notebook and subnotebook computers •= PDAs and Mobile communicators •= Desktop DC-DC converters ORDERING INFORMATION: DEVICE SC1402ISS PACKAGE (1) TEMP.
(TA) -40 - +85°C SSOP-28 TYPICAL APPLICATION CIRCUIT Note: (1) Only available in tape and reel packaging.
(Suff...

Similar Datasheet

SC140 (SCxxx) Triacs - Digitron Electronic
SC1401 HIGH PERFORMANCE SYNCHRONOUS BUCK CONTROLLER WITH LDO FOR PORTABLE POWER - Semtech Corporation
SC1402 Multi-Output/ Low-Noise Power Supply Controller for Notebook Computers - Semtech Corporation
SC1403 Mobile Multi-Output PWM Controller with Virtual Current SenseTM - Semtech Corporation
SC1404 Mobile Multi-Output PWM Controller - Semtech Corporation
SC14046B Phase Locked Loop - ON Semiconductor
SC1405 HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER - Semtech Corporation
SC1405B HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER - Semtech Corporation
SC1405CTS High Speed Synchronous Power MOSFET Smart Driver - Semtech Corporation
SC1405D High Speed Synchronous Power MOSFET Smart Driver - Semtech

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)