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NCP1573 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCP1573
Description  Low Voltage Synchronous Buck Controller
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1573 Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 4
1
Publication Order Number
NCP1573/D
NCP1573
Low Voltage Synchronous
Buck Controller
The NCP1573 is a low voltage buck controller. It provides the
control for a DC−DC power solution producing an output voltage as
low as 0.980 V over a wide current range. The NCP1573−based
solution is powered from 12 V with the output derived from a 2−7 V
supply. It contains all required circuitry for a synchronous NFET buck
regulator using the V2™ control method to achieve the fastest possible
transient response and best overall regulation. NCP1573 operates at a
fixed internal 200 kHz frequency and is packaged in an SO−8.
This device provides Power Good with delay and built−in adaptive
non−overlap.
Features
0.980 V ± 1.0% Reference Voltage
V2 Control Topology
200 ns Transient Response
Power Good
Programmable Power Good Delay
40 ns Gate Rise and Fall Times (3.3 nF Load)
Adaptive FET Non−Overlap Time
Fixed 200 kHz Oscillator Frequency
On/Off Control Through Use of the COMP Pin
Overvoltage Protection through Synchronous MOSFETs
Synchronous N−Channel Buck Design
Dual Supply, 12 V Control, 2−7 V Power Source
Device
Package
Shipping
ORDERING INFORMATION
NCP1573D
SO−8
98 Units/Rail
NCP1573DR2
SO−8
2500 Tape & Reel
SO−8
D SUFFIX
CASE 751
A = Assembly Location
L
= Wafer Lot
Y = Year
W = Work Week
GATE(H)
COMP
1
8
GATE(L)
PGDELAY
VFB
PWRGD
GND
VCC
PIN CONNECTIONS AND
MARKING DIAGRAM
1
8
http://onsemi.com


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