NCV3064 Datasheet, PDF (1/20 Pages) ON Semiconductor – 1.5 A, Step-Up/Down/ Inverting Switching Regulator with ON/OFF Function

NCP3064, NCP3064B,
NCV3064
1.5 A, Step-Up/Down/
Inverting Switching
Regulator with ON/OFF
Function
The NCP3064 Series is a higher frequency upgrade to the popular
MC33063A and MC34063A monolithic DC−DC converters. These
devices consist of an internal temperature compensated reference,
comparator, controlled duty cycle oscillator with an active current
limit circuit, driver and high current output switch. This series was
specifically designed to be incorporated in Step−Down and Step−Up
and Voltage−Inverting applications with a minimum number of
external components. The ON/OFF pin provides a low power
shutdown mode.
Features
• Input Voltage Range from 3.0 V to 40 V
• Logic Level Shutdown Capability
• Low Power Standby Mode, Typical 100 mA
• Output Switch Current to 1.5 A
• Adjustable Output Voltage Range
• 150 kHz Frequency Operation
• Precision 2% Reference
• Internal Thermal Shutdown Protection
• Cycle−by−Cycle Current Limiting
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• These are Pb−Free Devices
Applications
• Step−Down, Step−Up and Inverting supply applications
• High Power LED Lighting
• Battery Chargers
ON/OFF
L₁
V_OUT
R_sense
V_CC
C_IN
Ç ÇÇ ON/OFF
SWC
Ç ÇÇ Ipk
SWE
Ç ÇÇ V_CC
CT
Ç ÇÇ FB
GND
Ç ÇÇ ^NCP3064
R₁
D₁
R₂
C_T
GND
GND
Figure 1. Typical Buck Application Circuit
http://onsemi.com
MARKING
DIAGRAMS
8
1
SOIC−8
D SUFFIX
CASE 751
3064x
ALYWG
G
1
V3064
ALYWG
G
1
8
1
PDIP−8
P, P1 SUFFIX
CASE 626
NCP3064x
AWL
YYWWG
NCV3064
AWL
YYWWG
8 _DFN8
MN SUFFIX
1
CASE 488AF
NCP
3064x
ALYWG
G
NCV
3064
ALYWG
G
NCP3064
x
A
L, WL
Y, YY
W, WW
G or G
= Specific Device Code
=B
= Assembly Location
= Wafer Lot
= Year
= Work Week
= 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 17 of this data sheet.
© Semiconductor Components Industries, LLC, 2008
1
November, 2008 − Rev. 4
Publication Order Number:
NCP3064/D