DataSheet39.com

What is SP7663?

This electronic component, produced by the manufacturer "Exar", performs the same function as "6A 600KHz Synchronous Step Down Regulator".


SP7663 Datasheet PDF - Exar

Part Number SP7663
Description 6A 600KHz Synchronous Step Down Regulator
Manufacturers Exar 
Logo Exar Logo 


There is a preview and SP7663 download ( pdf file ) link at the bottom of this page.





Total 18 Pages



Preview 1 page

No Preview Available ! SP7663 datasheet, circuit

SP7663
PowerbloxTM
6A 600KHz Synchronous Step Down Regulator
August 2012
Rev. 2.2.0
GENERAL DESCRIPTION
APPLICATIONS
The SP7663 is a synchronous voltage mode
PWM step down (buck) regulator capable of a
constant output current up to 6 Amps. A wide
5V to 22V single input voltage range allows for
single supply operations from industry
standard 5V, 12V and 18V power rails.
Operations down to 3V are supported with an
additional biasing voltage.
Distributed Power Architectures
Point of Load Converters
Power Supply Modules
FPGAs, DSPs and Processors Supplies
FEATURES
With a 600kHz constant operating frequency
and integrated high and low side switch, the
SP7663 reduces the overall component count
and solution footprint. In addition to a 1%
output setpoint accuracy, this device provides
high efficiency, low ripple and excellent line
and load regulation. An enable function and
soft start feature allow for controlled power up
sequencing implementation.
6A Continuous Current
5V-22V Single Input Voltage Rail
3V-22V Input Voltage with 5V Bias
PWM Voltage Mode Control
600kHz Fixed Synchronous Operations
Low RDSON Power Switches
0.8V Min. Output Voltage 1% Accuracy
Built-in current limiting, UVLO, output short-
circuit and over temperature protection insure
safe operation under abnormal operating
conditions.
The SP7663 is offered in a RoHS compliant,
lead free 26-pin 7mmx4mm DFN package.
Type II & III Compensations Support
Programmable Soft Start
Over Temperature & Short Circuit
Protection/Auto-Restart
Current Limiting
RoHS Compliant Lead Free 26-Pin DFN
US Patent #6,922,041
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP7663 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 Fax. +1 510 668-7001

line_dark_gray
SP7663 equivalent
SP7663
PowerbloxTM
6A 600KHz Synchronous Step Down Regulator
PIN DESCRIPTION
Name
PGND
GND
VFB
COMP
SS
ISN
ISP
SWN
VINP
LX
BST
VIN
UVIN
VCC
Pin Number
1-4
5,9,19,20
6
7
8
10
11
12
13
14-16, 23-26
17
18
21
22
Description
Ground connection for the synchronous rectifier.
Ground Pin. The control circuitry of the IC and lower power driver are referenced to this
pin. Return separately from other ground traces to the (-) terminal of COUT.
Feedback Voltage and Short Circuit Detection pin. It is the inverting input of the Error
Amplifier and serves as the output voltage feedback point for the Buck Converter. The
output voltage is sensed and can be adjusted through an external resistor divider.
Whenever VFB drops 0.25V below the positive reference, a short circuit fault is detected
and the IC enters hiccup mode.
Output of the Error Amplifier. It is internally connected to the inverting input of the
PWM comparator. An optimal filter combination is chosen and connected to this pin and
either ground or VFB to stabilize the voltage mode loop.
Soft Start. Connect an external capacitor between SS and GND to set the soft start rate
based on the 10μA source current. The SS pin is held low via a 1mA (min) current
during all fault conditions.
Current sense negative input. Rail-to-rail input for over current detection.
Current sense positive input. Rail-to-rail input for over current detection.
Lower supply rail for the GH high-side gate driver. Connect this pin to the switching
node as close as possible to pins 23- 27. Do not connect this pin to pins 14 16.
Input connection to the high side N-channel MOSFET.
Connect an inductor between this pin and VOUT.
High side driver supply pin. Connect BST to the external boost diode and capacitor as
shown in the Typical Application Circuit on page 1. The high side driver is connected
between BST pin and SWN pin.
VIN connection for internal LDO and PWM Controller.
UVLO input for VIN voltage. Connect a resistor divider between VIN and UVIN to set
minimum operating voltage. Use resistor values below 20kΩ to override internal resistor
divider.
Output of internal regulator. May be externally biased if VIN < 5V.
ORDERING INFORMATION
Part Number
SP7663ER-L
SP7663ER-L/TR
SP7663EB
Junction
Temperature
Range
Marking
SP7663ER
-40°C≤TJ≤+125°C
YYWWL
X
SP7663ER
-40°C≤TJ≤+125°C
YYWWL
X
SP7663 Evaluation Board
Package
26-pin DFN
26-pin DFN
“YY” = Year – “WW” = Work Week – “X” = Lot Number
Packing
Quantity
Note 1
Bulk
Lead Free
3K/Tape & Reel Lead Free
Note 2
© 2012 Exar Corporation
5/18
Rev. 2.2.0


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for SP7663 electronic component.


Information Total 18 Pages
Link URL [ Copy URL to Clipboard ]
Download [ SP7663.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
SP7661The function is Wide Input Voltage Rangr Buck Regulator. Seponix CorporationSeponix Corporation
SP7662The function is 12A 300KHz Synchronous Step Down Regulator. ExarExar
SP7662The function is Buck Regulator. Sipex CorporationSipex Corporation

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

SP76     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search