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ON Semiconductor - Step-Up/Down/Inverting Switching Regulators

Numéro de référence NCV3063
Description Step-Up/Down/Inverting Switching Regulators
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NCV3063 fiche technique
NCP3063, NCP3063B,
NCV3063
1.5 A, Step-Up/Down/
Inverting Switching
Regulators
The NCP3063 Series is a higher frequency upgrade to the popular
MC34063A and MC33063A monolithic DC-DC converters. These
devices consist of an internal temperature compensated reference,
comparator, a controlled duty cycle oscillator with an active current
limit circuit, a driver and a high current output switch. This series was
specifically designed to be incorporated in Step-Down, Step-Up and
Voltage-Inverting applications with a minimum number of external
components.
Features
ăOperation to 40 V Input
ăLow Standby Current
ăOutput Switch Current to 1.5 A
ăOutput Voltage Adjustable
ăFrequency Operation of 150 kHz
ăPrecision 1.5% Reference
ăNew Features: Internal Thermal Shutdown with Hysteresis
New Features: Cycle-by-Cycle Current Limiting
ăPb-Free Packages are Available
Applications
ăStep-Down, Step-Up and Inverting supply applications
ăHigh Power LED Lighting
ăBattery Chargers
8
NCP3063
TSD
SET dominant
7
Rs
0.15 W
Vin 6
12 V +
22C0inmF
5
COMPARATOR
R
Q
S
-
+
0.2 V
S
Q
R
SET dominant
OSCILLATOR
CT
+ COMPARATOR
-
1.25 V
REFERENCE
REGULATOR
R1
2.4 kW
R2 3.9 kW
1
2
D
3
CT
2.2 nF
L
47 mH
4 Vout
3.3 V /
800 mA
470 mF +
Cout
Figure 1. Typical Buck Application Circuit
http://onsemi.com
MARKING
DIAGRAMS
8
1
SOIC-8
D SUFFIX
CASE 751
3063x
ALYW
G
1
V3063
ALYW
G
1
8
1
PDIP-8
P, P1 SUFFIX
CASE 626
NCP3063x
AWL
YYWWG
1
NCV3063
AWL
YYWWG
1
8
1
NCP
3063x
ALYW
G
DFN-8
SUFFIX
CASE 488
NCV
3063
ALYW
G
NCP3063x = Specific Device Code
x=B
A = Assembly Location
L, WL
= Wafer Lot
Y, YY
= Year
W, WW = Work Week
G = Pb-Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
©Ă Semiconductor Components Industries, LLC, 2007
June, 2007 - Rev. 3
1
Publication Order Number:
NCP3063/D

PagesPages 19
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