DataSheetWiki


AP1270 fiches techniques PDF

Advanced Power Electronics - 3A SINK/SOURCE BUS TERMINATION REGULATOR

Numéro de référence AP1270
Description 3A SINK/SOURCE BUS TERMINATION REGULATOR
Fabricant Advanced Power Electronics 
Logo Advanced Power Electronics 





1 Page

No Preview Available !





AP1270 fiche technique
Advanced Power
Electronics Corp.
AP1270
3A SINK/SOURCE BUS TERMINATION REGULATOR
FEATURES
Ideal for DDR-I, DDR-II and DDR-III VTT Applications
Sink and Source 3A Continuous Current
Integrated Power MOSFETs
Generates Termination Voltage for SSTL_2, SSTL_18,
HSTL, SCSI-2 and SCSI-3 Interfaces.
High Accuracy Output Voltage at Full-Load
Output Adjustment by Two External Resistors
Low External Component Count
Shutdown for Suspend to RAM (STR) Functionality
with High-Impedance Output
Current Limiting Protection
On-Chip Thermal Protection
Available in TO-252-5L & ESOP-8 Packages
VIN and VCNTL No Power Sequence Issue
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATION
Desktop PCs, Notebooks, and Workstations
Graphics Card Memory Termination
Set Top Boxes, Digital TVs, Printers
Embedded Systems
Active Termination Buses
DDR-I, DDR-II and DDR-III Memory Systems
DESCRIPTIOON
The AP1270 is a simple, cost-effective and high-
speed linear regulator designed to generate termination
voltage in double data rate (DDR) memory system to
comply with the JEDEC SSTL_2 and SSTL_18 or other
specific interfaces such as HSTL, SCSI-2 and SCSI-3
etc. devices requirements. The regulator is capable of
actively sinking or sourcing up to 3A while regulating an
output voltage to within 40mV. The output termination
voltage cab be tightly regulated to track 1/2V DDQ by two
external voltage divider resistors or the desired output
voltage can be pro-grammed by externally forcing the
REFEN pin voltage.
The AP1270 also incorporates a high-speed
differential amplifier to provide ultra-fast response in
line/load transient. Other features include extremely low
initial offset voltage, excellent load regulation, current
limiting in bi-directions and on-chip thermal shut-down
protection.
The AP1270 are available in the TO-252-5L &
ESOP-8 (Exposed Pad) surface mount packages.
TYPICAL APPLICATION
VCNTL=3.3V
VIN=2.5V/1.8V/1.5V
2N7002
EN
R1
VIN VCNTL
CIN CCNTL
RTT
AP1270
REFEN
VOUT
CSS
R2
GND
COUT
RDUMMY
R1 = R2 = 100KΩ, RTT = 50Ω / 33Ω / 25Ω
COUT,min = 10uF (Ceramic) + 1000uF under the worst case testing condition
CSS = 1µF, CIN = 470µF(Low ESR), CCNTL = 47µF
Data and specifications subject to change without notice
1
201011055

PagesPages 7
Télécharger [ AP1270 ]


Fiche technique recommandé

No Description détaillée Fabricant
AP1270 3A SINK/SOURCE BUS TERMINATION REGULATOR Advanced Power Electronics
Advanced Power Electronics
AP1270AMP 2.5A SINK/SOURCE BUS TERMINATION REGULATOR Advanced Power Electronics
Advanced Power Electronics

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche