NCV33163
Product Preview
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.
http://onsemi.com
MARKING
DIAGRAMS
16
PDIP-16
P SUFFIX
CASE 648C
NCV33163P
AWLYYWW
16
1
1
16
SO-16W
DW SUFFIX
CASE 751G
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
NCV33163DW
AWLYYWW
16
1
• Operation from 2.5 V to 60 V Input
OC
A
= Assembly Location
1
• Low Standby Current
• Precision 2% Reference
WL = Wafer Lot
YY = Year
• Controlled Duty Cycle Oscillator
WW = Work Week
• 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
PIN CONNECTIONS
Bootstrap Input
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LVI Output
Voltage Feedback 2
Voltage Feedback 1
• Moisture Sensitivity Level (MSL) Equals 1
Switch
Emitter
• NCV Prefix, for Automotive and Other Applications Requiring Site
and Change Control
Gnd
Gnd
Timing Capacitor
Switch Collector
Driver Collector
V
CC
I
pk
Sense
(Top View)
ORDERING INFORMATION
Device
Package
SO-16W
SO-16W
Shipping
NCV33163DW
47 Units/Rail
NCV33163DWR2
1000 Tape &
Reel
NCV33163P
PDIP-16
25 Units/Rail
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
Semiconductor Components Industries, LLC, 2002
1
Publication Order Number:
November, 2002 - Rev. 0
NCV33163/D