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MC33063A Datasheet

Step-Up/Down/ Inverting Switching Regulators

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MC34063A, MC33063A,
SC34063A, SC33063A,
NCV33063A
1.5 A, Step-Up/Down/
Inverting Switching
Regulators
The MC34063A Series is a monolithic control circuit containing the
primary functions required for DC−to−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. Refer to Application Notes AN920A/D and AN954/D
for additional design information.
Features
Operation from 3.0 V to 40 V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5 A
Output Voltage Adjustable
Frequency Operation to 100 kHz
Precision 2% Reference
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Drive 8
Collector
Ipk 7
Sense
1
Switch
Collector
S Q Q2
R
100
Ipk
Oscillator
CT
Q1
2 Switch
Emitter
6
VCC
Comparator
+
-
1.25 V
Reference
Regulator
3 Timing
Capacitor
Comparator 5
Inverting
Input
(Bottom View)
4
GND
This device contains 79 active transistors.
Figure 1. Representative Schematic Diagram
www.onsemi.com
8
1
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAMS
8
3x063
ALYWA
G
1
8
3x063V
ALYWA
G
1
PDIP−8
P, P1 SUFFIX
CASE 626
8
3x063AP1
AWL
YYWWG
1
8
33063AVP
AWL
YYWWG
1
DFN8
33063
CASE 488AF
ALYWA
1G
x
A
L, WL
Y, YY
W, WW
G or G
= 3 or 4
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
© Semiconductor Components Industries, LLC, 2016
December, 2016 − Rev. 24
1
Publication Order Number:
MC34063A/D


  ON Semiconductor Electronic Components Datasheet  

MC33063A Datasheet

Step-Up/Down/ Inverting Switching Regulators

No Preview Available !

MC34063A, MC33063A, SC34063A, SC33063A, NCV33063A
Switch
Collector
1
Switch
Emitter
2
Timing 3
Capacitor
GND 4
8
Driver
Collector
7 Ipk Sense
(Top View)
6 VCC
Comparator
5 Inverting
Input
ÇÇSwitch Collector
ÇÇSwitch Emitter
ÇÇTiming Capacitor
ÇÇÇÇGND
EP Flag
ÇDriver Collector
ÇIpk Sense
ÇVCC
ÇComparator
ÇInverting Input
(Top View)
Figure 2. Pin Connections
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (VPin 1 = 40 V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (Note 1)
Switch Current
Power Dissipation and Thermal Characteristics
VCC
VIR
VC(switch)
VE(switch)
VCE(switch)
VC(driver)
IC(driver)
ISW
40
−0.3 to + 40
40
40
40
40
100
1.5
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
A
Plastic Package, P, P1 Suffix
TA = 25°C
Thermal Resistance
SOIC Package, D Suffix
PD
RqJA
1.25 W
115 °C/W
TA = 25°C
Thermal Resistance
Thermal Resistance
DFN Package
TA = 25°C
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
MC34063A, SC34063A
PD
RqJA
RqJC
PD
RqJA
TJ
TA
625
160
45
1.25
80
+150
0 to +70
mW
°C/W
°C/W
mW
°C/W
°C
°C
MC33063AV, NCV33063A
−40 to +125
MC33063A, SC33063A
−40 to + 85
Storage Temperature Range
Tstg
−65 to +150
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Maximum package power dissipation limits must be observed.
2. This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per MIL−STD−883, Method 3015.
Machine Model Method 400 V.
3. NCV prefix is for automotive and other applications requiring site and change control.
www.onsemi.com
2


Part Number MC33063A
Description Step-Up/Down/ Inverting Switching Regulators
Maker ON Semiconductor
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MC33063A Datasheet PDF





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