NCP3163_07 ONSEMI [ON Semiconductor], NCP3163_07 Datasheet

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NCP3163_07

Manufacturer Part Number
NCP3163_07
Description
3.4 A, Step−Up/Down/Inverting 50−300 kHz Switching Regulator
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
NCP3163, NCV3163
3.4 A, Step−Up/Down/
Inverting 50−300 kHz
Switching Regulator
MC33163 and MC34163 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 controller was
specifically designed to be incorporated in step−down, step−up, or
voltage−inverting applications with a minimum number of external
components. The NCP3163 comes in an exposed pad package which
can greatly increase the power dissipation of the built in power switch.
Features
V
© Semiconductor Components Industries, LLC, 2007
January, 2007 − Rev. 4
C
in
The NCP3163 Series is a performance enhancement to the popular
and Control Changes
in
Output Switch Current in Excess of 3.0 A
3.4 A Peak Switch Current
Frequency is Adjustable from 50 kHz to 300 kHz
Operation from 2.5 V to 40 V Input
Externally Adjustable Operating Frequency
Precision 2% Reference for Accurate Output Voltage Control
Driver with Bootstrap Capability for Increased Efficiency
Cycle−by−Cycle Current Limiting
Internal Thermal Shutdown Protection
Low Voltage Indicator Output for Direct Microprocessor Interface
Exposed Pad Power Package
Low Standby Current
NCV Prefix for Automotive and Other Applications Requiring Site
These are Pb−Free Devices
+
8
7
6
5
4
3
2
1
Figure 1. Typical Buck Application Circuit
LVI
V
CC
Oscillator
Thermal
+
+
+
Current
+
+
Limit
(Bottom View)
V
CC
R
S
Q
V
CC
10
11
12
13
14
15
16
9
C
1
O
+
V
out
See detailed ordering and shipping information in the package
dimensions section on page 18 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
16
EXPOSED PAD
(Note: Microdot may be in either location)
1
CASE 751AG
NCx3163x
A
WL
YY
WW
G or G
PW SUFFIX
SOIC−16W
ORDERING INFORMATION
18
http://onsemi.com
1
18−LEAD DFN
MN SUFFIX
CASE 505
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
x = P or V
y = blank or B
Publication Order Number:
16
1
1
DIAGRAMS
NCx3163yPW
AWLYYWWG
AWLYYWW G
MARKING
NCP3163y
NCP3163/D
G
18

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NCP3163_07 Summary of contents

Page 1

NCP3163, NCV3163 3.4 A, Step−Up/Down/ Inverting 50−300 kHz Switching Regulator The NCP3163 Series is a performance enhancement to the popular MC33163 and MC34163 monolithic DC−DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator ...

Page 2

I PKsense Timing Capacitor C T Shutdown R DT Gnd Voltage Feedback 1 Voltage Feedback 2 LVI Output PIN FUNCTION DESCRIPTION SOIC16 DFN18 PIN NAME 1 15 LVI Output 2 16 Voltage Feedback ...

Page 3

MAXIMUM RATINGS (Note 1) Rating Power Supply Voltage Switch Collector Voltage Range Switch Emitter Voltage Range Switch Collector to Emitter Voltage Switch Current Driver Collector Voltage (Pin 8) Driver Collector Current (Pin 8) Bootstrap Input Current Range Current Sense Input ...

Page 4

ELECTRICAL CHARACTERISTICS values T is the operating ambient temperature range that applies (Note 7), unless otherwise noted.) A Characteristic OSCILLATOR Frequency T = 25° Total Variation over ...

Page 5

T , AMBIENT TEMPERATURE (°C) A Figure 4. Oscillator Frequency Change vs. Temperature when only C is connected ...

Page 6

V CC Pin 2.4 2.0 1.6 1.2 − 55 − AMBIENT TEMPERATURE (°C) A Figure 8. Bootstrap Input Current Source vs. Temperature 0 Darlington Configuration V CC Emitter Sourcing Current ...

Page 7

252 250 248 246 − 55 − AMBIENT TEMPERATURE (°C) A Figure 14. Current Limit Comparator Threshold Voltage vs. Temperature 8.0 6.0 4.0 2 ...

Page 8

The NCP3163 is a monolithic power switching regulator optimized for DC−to−DC converter applications. The combination of its features enables the system designer to directly implement step−up, step−down, and voltage− inverting converters with a minimum number of external components. Potential applications ...

Page 9

Feedback and Low Voltage Indicator Comparators Output voltage control is established by the Feedback comparator. The inverting input is internally biased at 1.25 V and is not pinned out. The converter output voltage is typically divided down with two external ...

Page 10

When configured for step−down or voltage−inverting applications (see application notes at the end of this document) the inductor will forward bias the output rectifier when the switch turns off. Rectifiers with a high forward voltage drop or long turn−on delay ...

Page 11

Calculation Step−Down (See Notes 1,2,3) V out ) sat * V out t off off ƒ off 32.143 · ...

Page 12

Figure 23. Typical Buck Application Schematic Value of Components Name Value ...

Page 13

NCP3163, NCV3163 Figure 24. Buck Layout APPLICATION SPECIFIC CHARACTERISTICS 85 5.0 V Eff 80 75 3.3 V Eff 0.5 1.0 1.5 I (A) out Figure 25. Efficiency vs. Output Current for the Buck Demo ...

Page 14

Figure 26. Typical Boost Application Schematic Value of Components for out Name Value Schottky Rectifier 330 ...

Page 15

NCP3163, NCV3163 Figure 27. Boost Demo Board Layout 0.1 0.2 0.3 0.4 0.5 I (A) out Figure 28. Efficiency vs. Output Current for the Boost Demo Board ...

Page 16

Figure 29. Typical Voltage Inverting Application Schematic Value of Components for V = −15 V out Name Value Schottky Rectifier 270 ...

Page 17

NCP3163, NCV3163 Figure 30. Voltage Inverting Demo Board Layout 0.1 0.15 0.2 0.25 0.3 0.35 I (A) out Figure 31. Efficiency vs. Output Current for the Voltage Inverting Demo Board http://onsemi.com ...

Page 18

ORDERING INFORMATION Device NCP3163PWG NCP3163PWR2G NCP3163BPWG NCP3163BPWR2G NCP3163MNR2G NCP3163BMNR2G NCV3163PWG NCV3163PWR2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCP3163, NCV3163 Package SOIC−16 W ...

Page 19

SOIC 16 LEAD WIDE BODY, EXPOSED PAD −U− 0.25 (0.010 PIN 1 I.D. TOP SIDE 0.10 (0.004 0.25 (0.010 ...

Page 20

D PIN 1 LOCATION 2X 0. 0.15 C TOP VIEW (A3) 0.10 C 18X 0. SIDE VIEW 18X 18X 18 10 BOTTOM VIEW ON Semiconductor and are registered trademarks of ...

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