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PDF NCP1588 Data sheet ( Hoja de datos )
| Número de pieza | NCP1588 | |
| Descripción | Low Voltage Synchronous Buck Controller | |
| Fabricantes | ON Semiconductor | |
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NCP1588
Low Voltage Synchronous
Buck Controller
The NCP1588 is a low cost PWM controller designed to operate
from a 5 V or 12 V supply. This device is capable of producing an
output voltage as low as 0.8 V. This device is capable of converting
voltage from as low as 2.5 V. This 10-pin device provides an optimal
level of integration to reduce size and cost of the power supply. The
NCP1588 provides a 1.5 A gate driver design and an internally set
300ĂkHz oscillator. In addition to the 1.5 A gate drive capability, other
efficiency enhancing features of the gate driver include adaptive
non-overlap circuitry. The NCP1588 also incorporates an externally
compensated error amplifier. Protection features include
programmable short circuit protection and undervoltage lockout
(UVLO).
Features
•ăVCC Range from 4.5 to 13.2 V
•ă300 kHz Internal Oscillator
•ăBoost Pin Operates to 26.4 V
•ăVoltage Mode PWM Control
•ă0.8 V ±1.0% Internal Reference Voltage
•ăAdjustable Output Voltage
•ăInternal 1.5 A Gate Drivers
•ă80% Max Duty Cycle
•ăInput Under Voltage Lockout
•ăProgrammable Current Limit
•ăThis is a Pb-Free Device
Applications
•ăGraphics Cards
•ăDesktop Computers
•ăServers / Networking
•ăDSP & FPGA Power Supply
•ăDC-DC Regulator Modules
http://onsemi.com
MARKING DIAGRAM
DFN10
MT SUFFIX
CASE 485C
1588
ALYWG
G
1588 = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb-Free Device
(Note: Microdot may be in either location)
PIN CONNECTIONS
BOOT
LX
UG
LG
GND
1
2
3
4
5
10 PGOOD
9 VOS
8 FB
7 COMP/EN
6 VCC
(Top View)
ORDERING INFORMATION
Device
Package
Shipping†
NCP1588MTR2G DFN10 3000/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 Specifications
Brochure, BRD8011/D.
©Ă Semiconductor Components Industries, LLC, 2007
June, 2007 - Rev. 0
1
Publication Order Number:
NCP1588/D
1 page  
NCP1588
TYPICAL CHARACTERISTICS
305
VCC = 12 V
303
301 VCC = 5.0 V
299
297
295
0
20 40 60
TJ, JUNCTION TEMPERATURE (°C)
80
Figure 3. Oscillator Frequency (fSW) vs. Temperature
808
806
804
802
800
798
796
794
792
0
20 40 60
TJ, JUNCTION TEMPERATURE (°C)
Figure 4. Reference Voltage (VREF) vs.
Temperature
80
4.0 -556
3.5 -558
-560
3.0
-562
2.5
-564
2.0
-566
1.5 -568
1.0 -570
0 20 40 60 80 0 20 40 60 80
TJ, JUNCTION TEMPERATURE (°C)
TJ, JUNCTION TEMPERATURE (°C)
Figure 5. ICC vs. Temperature
Figure 6. OCP Threshold with 55k Rset vs.
Temperature
http://onsemi.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NCP1588.PDF ] | |
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