NCV33163 Datasheet, PDF (1/16 Pages) ON Semiconductor – 2.5 A, Step-Up/Down/ Inverting Switching Regulators

NCV33163
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2.5 A, Step−Up/Down/
Inverting Switching
Regulators
The NCV33163 series are monolithic power switching regulators
that contain the primary functions required for dc-to-dc converters.
This series is specifically designed to be incorporated in step-up,
step-down, and voltage-inverting applications with a minimum
number of external components.
These devices consist of two high gain voltage feedback
comparators, temperature compensated reference, controlled duty
cycle oscillator, driver with bootstrap capability for increased
efficiency, and a high current output switch. Protective features consist
of cycle-by-cycle current limiting, and internal thermal shutdown.
Also included is a low voltage indicator output designed to interface
with microprocessor based systems.
These devices are contained in a 16 pin dual-in-line heat tab plastic
package for improved thermal conduction.
• Output Switch Current in Excess of 2.0 A
• Operation from 2.5 V to 60 V_OC Input
• Low Standby Current
• Precision 2% Reference
• Controlled Duty Cycle Oscillator
• Driver with Bootstrap Capability for Increased Efficiency
• Cycle-by-Cycle Current Limiting
• Internal Thermal Shutdown Protection
• Low Voltage Indicator Output for Direct Microprocessor Interface
• Heat Tab Power Package
• Moisture Sensitivity Level (MSL) Equals 1
• NCV Prefix, for Automotive and Other Applications Requiring Site
and Change Control
http://onsemi.com
16
1
MARKING
DIAGRAMS
16
PDIP-16
P SUFFIX
CASE 648C
NCV33163P
AWLYYWW
1
16
SO-16W
DW SUFFIX ^NCV33163DW
16
CASE 751G ^AWLYYWW
1
A = Assembly Loc1ation
WL = Wafer Lot
YY = Year
WW = Work Week
PIN CONNECTIONS
LVI Output 1
Voltage Feedback 2 2
Voltage Feedback 1 3
4
Gnd
5
Timing Capacitor 6
V_{CC 7}
I_pk Sense 8
16 Bootstrap Input
15 _Switch
14 ^Emitter
13
Gnd
12
11
Switch Collector
10
9 Driver Collector
(Top View)
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
ORDERING INFORMATION
Device
Package
Shipping
NCV33163DW
SO-16W 47 Units/Rail
NCV33163DWR2 SO-16W
1000 Tape &
Reel
NCV33163P
PDIP-16 25 Units/Rail
© Semiconductor Components Industries, LLC, 2002
1
November, 2002 - Rev. 0
Publication Order Number:
NCV33163/D