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PDF NCP5383 Data sheet ( Hoja de datos )
| Número de pieza | NCP5383 | |
| Descripción | 2 Phase Buck Controller | |
| Fabricantes | ON Semiconductor | |
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Hay una vista previa y un enlace de descarga de NCP5383 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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NCP5383
2 Phase Buck Controller
with Integrated Gate
Drivers and AVP
The NCP5383 is a two phase buck controller used in low voltage,
high current power supplies. Dual-edge pulse-width modulation
(PWM) combined with inductor current sensing and adaptive voltage
positioning (AVP) reduces system cost by providing the fastest initial
response to transient loads thereby requiring less bulk and ceramic
output capacitors to satisfy transient load-line requirements.
A high performance operational error amplifier is provided, which
allows for easy compensation of the system. Protection features
www.DaitnacSlhuedet4Uo.vceormcurrent protection, undervoltage lockout (UVLO),
thermal shutdown and power good monitor.
Features
•ăDual-edge PWM for Fastest Initial Response to Transient Loading
•ăHigh Performance Operational Error Amplifier
•ă1% Internal Reference Voltage Accuracy
•ăPhase-to-Phase Current Balancing
•ă“Lossless” Differential Inductor Current Sensing
•ăDifferential Current Sense Amplifiers for Each Phase
•ăAdaptive Voltage Positioning (AVP)
•ăFrequency Range: 100 kHz – 400 kHz Set by the Resistor
•ăPower Good Output with Internal Delays
•ăProgrammable Soft Start Time
•ăIntegrated Gate Drivers
•ăThis is a Pb-Free Device
Applications
•ăPentium IV Processors
•ăGraphics Cards
•ăLow Voltage, High Current Power Supplies
http://onsemi.com
24 PIN QFN, 4x4
MN SUFFIX
CASE 485L
MARKING
DIAGRAM
1
5383
ALYWG
G
5383
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
ROSC
ILIM
VCC
AGND
SS
COMP
VCCP
BG2
PGND2
SWN2
TG2
BST2
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCP5383MNR2G QFN-24 4000 / Tape & Reel
(Pb-Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
©Ă Semiconductor Components Industries, LLC, 2007
December, 2007 - Rev. 3
1
Publication Order Number:
NCP5383/D
1 page  
NCP5383
ABSOLUTE MAXIMUM RATINGS
Rating
Value
Unit
Operating Ambient Temperature Range
0 to 70
°C
Operating Junction Temperature Range
0 to 125
°C
Storage Temperature Range
-55 to 150
°C
Lead Temperature Soldering, Reflow (60 second maximum above 183°C):
230 °C
Thermal Resistance, Junction-to-Ambient (RqJA) on a thermally conductive PCB in free air
ESD Susceptibility (Human Body Model)
56 °C/W
2.0 kV
JEDEC Moisture Sensitivity Level
1 MSL
Maximum Voltage VCC with respect to AGND
Maximum Voltage VCCP and all other pins with respect to ground
Maximum Voltage VBST and all other pins with respect to ground
Maximum Voltage VBST and all other pins with respect to SWN
www.DataMSahxeimetu4mU.Vcooltmage SWN and all other pins with respect to ground
13.2 V
5.5 V
18.7 V
5.5 V
3.0 V
Minimum Voltage SWN and all other pins with respect to ground
-2.0 V
Minimum Voltage all pins with respect to ground
-0.3 V
Maximum Current into pins: COMP, VDRP
3.0 mA
Maximum Current out of pins: COMP, VDRP, ROSC, SS
3.0 mA
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
http://onsemi.com
5
5 Page 
NCP5383
Figure 12. 20 A Sustaining Load
www.DataSheet4U.com
Figure 13. UVLO Start
VCCP
Figure 14. UVLO Stop
Figure 15. Power-up Waveforms
VCCP
Figure 16. Soft Start Sequence
Figure 17. Power-down Waveforms
http://onsemi.com
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet NCP5383.PDF ] | |
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