Electronic Components Datasheet Search
Selected language     English  ā–¼


SP6122 Datasheet(PDF) 4 Page - Sipex Corporation

Part No. SP6122
Description  Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
Download  19 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  SIPEX [Sipex Corporation]
Homepage  http://www.sipex.com
Logo 

 
 4 page
background image
4
Rev. 7/16/03
SP6122 Low Voltage, Micro 8, PFET, Buck Controller
Ā© Copyright 2003 Sipex Corporation
PIN DESCRIPTION
PIN #
PIN NAME
DESCRIPTION
1VCC
Main Supply Pin: A RC filter as shown in the application circuit is
recommended. The decoupling capacitor needs to be close to the pin.
2
FFLAG
Fault Flag Pull-down Pin: Sinks current during a fault condition. Can
be hooked up to ENABLE to initiate Hiccup Timing.
3VOUT
Regulated Output Voltage: This voltage is divided internally and
compared to a 1.5%, 1.25V reference at the PFM comparator.
4
ENABLE
Enable Input: Floating this pin or pulling above 1.45V enables the
part. Pulling this pin to less than 0.9V will disable the part. A minimum
100pF capacitor is required between this pin and Ground to ensure
proper startup. If FFLAG is hooked to ENABLE, the capacitor on
ENABLE will control hiccup timing.
5ISENSE
Negative Input to the Over Current Amplifier/Comparator: This input
is subtracted from the ISET input and gained by a factor of 3.3. The
output of this amplifier is compared with a 0.5V threshold, yielding a
150mV threshold. This threshold has a 3800 ppm/Ā°C temperature
coefficient. If the subtraction exceeds 150mV, charge is pumped into
a capacitor until the capacitor hits VCC/2. At this time, the over current
fault is activated. If ISET = 0V and ISENSE = VCC, the part enters an
unprotected, 150ĀµA quiescent current mode.
6ISET
Positive Input to the Over Current Amplifier: 20ĀµA flows into the ISET
pin if it is pulled through a resistor to VIN. This current has a
4300ppm/Ā°C temperature coefficient and can be used via external
resistor to raise the overcurrent trip point from 150mV to some higher
value. If ISET = 0V and ISENSE = 0V, the part enters an unprotected,
250ĀµA quiescent current mode.
7
GND
Power and Analog Ground: Hook directly to output ground.
8
PDRV
Drive for PFET High Side Switch: 1nF/20ns Output Driver.




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19 


Datasheet Download



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
SP6121Low Voltage Synchronous Step Down PWM Controller Ideal for 2A to 10A Small Footprint DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
SP6123Low Voltage Synchronous Step-Down PWM Controller Ideal for 2A to 10A Small Footprint DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
SP6128ALow Voltage Synchronous Step Down PWM Controller Ideal for 2A to 10A Small Footprint DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
SP6120Low Voltage AnyFETTM Synchronous Buck Controller Ideal for 2A to 10A High Performance DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
SP6120Low Voltage AnyFETTM Synchronous Buck Controller Ideal for 2A to 10A High Performance DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
SP6120BLow Voltage AnyFETTM Synchronous Buck Controller Ideal for 2A to 10A High Performance DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
SP6120HVHigh Voltage Synchronous Buck Controller Ideal for 2A to 20A High Performance DC-DC Power Converters 1 2 3 4 5 MoreSipex Corporation
Z02205MODEM CONTROLLER IDEAL FOR LOW POWER CONSUMPTION SMALL SIZE REQUIREMENTS 1 2 3 4 5 MoreZilog, Inc.
TPS51124DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS 1 2 3 4 5 MoreTexas Instruments
RC5051Programmable Synchronous DC-DC Controller for Low Voltage Microprocessors 1 2 3 4 5 MoreFairchild Semiconductor

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights ReservedĀ© Alldatasheet.com 2003 - 2017    


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl