Part Number: MC33063AP

Cross Number:

Item Description: 1.5A BOOST/BUCK/INVERTING SWREG - Rail/Tube

Qty Price
1 + $0.22040



Other Cross Reference

Manufacturer Date Code Qty Available Qty
Texas Instruments
  • Freelance Stock: 1
    Ships Immediately





Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

©2001 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.2
Features
Operation from 3.0 to 40V input
Short circuit current limiting
Low standby current
Output switch current of 1.5A without external transistors
Output voltage adjustable
Frequency of operation from 100Hz to 100KHz
Step up, Step down or inverting switching regulators
Description
The MC34063A/MC33063A is a monolithic regulator sub
system intended for use as DC to DC converter. This device
contains a temperature compensated bandgap reference, a
duty cycle control oscillator, driver and high current output
switch. It can be used for step down, step up or inverting
switching regulators as well as for series pass regulators.
8-DIP
8-SOP
1
1
Internal Block Diagram
MC34063A/MC33063A
SMPS Controller
MC34063A/MC33063A
2
Absolute Maximum Ratings
Electrical Characteristics
(V
CC
= 5.0V, T
A
= 0°C to +70°C
for the MC34063, T
A
= -40°C to the +85°C for the MC33063, unless otherwise
specified)
Note :
Output switch tests are performed under pulsed conditions to minimize power dissipation
Parameter Symbol Value Unit
Supply Voltage V
CC
40 V
Comparator Input Voltage Range V
I(COMP)
- 0.3 ~ + 40 V
Switch Collector Voltage V
C(SW)
40 V
Switch Emitter Voltage V
E(SW)
40 V
Switch Collector To Emitter Voltage V
CE(SW)
40 V
Driver Collector Voltage V
C(DR)
40 V
Switch Current I
SW
1.5 A
Storage Temperature Range T
STG
- 65 ~ + 150 °C
Parameter Symbol Conditions Min. Typ. Max. Unit
OSCILLATOR
Charging Current I
CHG
V
CC
= 5 to 40V
T
A
= 25°C
22 31 42 µA
Discharging Current I
DISCHG
V
CC
= 5 to 40V
T
A
= 25°C
140 190 260 µA
Oscillator Amplitude V
(OSC)
T
A
= 25°C-0.5-V
Discharge To Charge Current Ratio K V
7
= V
CC ,
T
A
= 25°C 5.2 6.1 7.5 -
Current Limit Sense
Voltage
V
SENSE(C.L)
I
CHG
= I
DISCHG
T
A
= 25°C
250 300 350 mV
OUTPUT SWITCH
Saturation Voltage 1 (Note) V
CE(SAT)
1
I
SW
= 1.0A
V
C
(driver) = V
C
(SW)
- 0.95 1.3 V
Saturation Voltage 2 (Note) V
CE(SAT)
2
I
SW
= 1.0A,
V
C
(driver) = 50mA
- 0.45 0.7 V
DC Current Gain (Note) G
I(DC)
I
SW
= 1.0A,
V
CE
= 5.0V, T
A
= 25°C
50 180 - -
Collector off State Current (Note) I
C(OFF)
V
CE
= 40V, T
A
= 25°C - 0.01 100 µA
COMPARATOR
Threshold Voltage V
TH
- 1.21 1.24 1.29 V
Threshold Voltage Line Regulation V
TH
V
CC
= 3 to 40V - 2.0 5.0 mV
Input Bias Current I
BIAS
V
I
= 0V - 50 400 nA
TOTAL DEVICE
Supply Current
MC34063
I
CC
V
CC
= 5 to 40V
C
T
= 0.001uF
V
7
= V
CC,
V
5
>V
TH
pin2 = GND
--4.0
mA
MC33063 --5.0
MC34063A/MC33063A
3
Typical Performance Characteristics
Temperature (°C)
Figure 1. Temperature Drift (V
TH
)
Temperature (°C)
Figure 2.
Temperature Drift (I
OC
)
123NEXT

Freelance Electronics
13197 Sandoval Street
Santa Fe Springs, CA 90670

Hours of Operation
Monday-Friday 7:30am-4:30pm PST
(Deadline for next day shipment 2:00pm PST)

Trustworthy Standards Serving the Electronic Components
Industry since 1986

Government Cage code#-1V4R6
Duns Number# 788130532
Certified Small Disadvantaged Business