SLLS654A – APRIL 2005 – REVISED JANUARY 2007
D Qualification in Accordance With
D (SOIC) PACKAGE
AEC-Q100†
(TOP VIEW)
D Qualified for Automotive Applications
D Customer-Specific Configuration Control
D
D
D
D
D
D
D
Can Be Supported Along With
Major-Change Approval
Wide Input Voltage Range . . . 3 V to 40 V
High Output Switch Current . . . Up to 1.5 A
Adjustable Output Voltage
Oscillator Frequency . . . Up to 100 kHz
Precision Internal Reference . . . 2%
Short-Circuit Current Limiting
Low Standby Current
Switch Collector
Switch Emitter
Timing Capacitor
GND
1
8
2
7
3
6
4
5
Driver Collector
Ipk
VCC
Comparator Inverting Input
DRJ (QFN) PACKAGE
(TOP VIEW)
Switch Collector
Switch Emitter
Timing Capacitor
GND
1
2
3
4
GND
8
7
6
5
Driver Collector
Ipk
VCC
Comparator Inverting Input
† Contact factory for details. Q100 qualification data
available on request.
description/ordering information
The MC33063A is an easy-to-use IC containing all the primary circuitry needed for building simple dc-dc
converters. This device primarily consists of an internal temperature-compensated reference, a comparator, an
oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch; thus, the
device requires minimal external components to build converters in the boost, buck, and inverting topologies.
The MC33063A is characterized for operation from − 40°C to 125°C.
ORDERING INFORMATION
PACKAGE†
TA
−40°C to 125°C
ORDERABLE
PART NUMBER
QFN (DRJ)
Reel of 1000
MC33063AQDRJR
SOIC (D)
Reel of 2500
MC33063AQDR
TOP-SIDE
MARKING
PREVIEW
33063AQ
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2007, Texas Instruments Incorporated
!"#$%&" ' ()##*& %' "! +),-(%&" .%&*
#".)(&' ("!"#$ &" '+*(!(%&"' +*# &/* &*#$' "! *0%' '&#)$*&'
'&%.%#. 1%##%&2
#".)(&" +#"(*''3 ."*' "& *(*''%#-2 (-).*
&*'&3 "! %-- +%#%$*&*#'
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1
SLLS654A – APRIL 2005 – REVISED JANUARY 2007
functional block diagram
Drive
Collector
8
1
Switch
Collector
2
Switch
Emitter
3
Timing
Capacitor
Q2
S Q
Q1
R
100 Ω
Ipk
Sense
7
Ipk
Oscillator
CT
6
VCC
+
_
Comparator
Inverting
Input
1.25-V
Reference
Regulator
4
5
GND
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Comparator Inverting Input voltage range, VIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 40 V
Switch Collector voltage, VC(switch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Switch Emitter voltage (VPIN1 = 40 V), VE(switch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Switch Collector to Switch Emitter voltage, VCE(switch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Driver Collector voltage, VC(driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Driver Collector current, IC(driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
Switch current, ISW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A
Package thermal impedance, θJA (see Notes 1 and 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
2
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SLLS654A – APRIL 2005 – REVISED JANUARY 2007
recommended operating conditions
MIN
VCC
Supply voltage
TA
Operating free-air temperature range
MC33063A
MAX
UNIT
3
40
V
−40
125
°C
electrical characteristics, VCC = 5 V, TA = full operating range (unless otherwise noted) (see block
diagram)
OSCILLATOR
PARAMETER
fosc
Ichg
Oscillator frequency
Idischg
Idischg/Ichg
Discharge current
VIpk
TEST CONDITIONS
TA
MIN
TYP
MAX
24
33
42
UNIT
kHz
35
42
µA
220
260
µA
VPIN5 = 0 V, CT = 1 nF
VCC = 5 V to 40 V
25°C
25°C
24
25°C
140
Discharge-to-charge current ratio
VCC = 5 V to 40 V
VPIN7 = VCC
25°C
5.2
6.5
7.5
Current-limit sense voltage
Idischg = Ichg
25°C
250
300
350
mV
MIN
TYP
MAX
UNIT
Charge current
OUTPUT SWITCH (see Note 3)
PARAMETER
TEST CONDITIONS
TA
VCE(sat)
Saturation voltage – Darlington
connection
ISW = 1 A, pins 1 and 8 connected
Full range
1
1.3
V
VCE(sat)
Saturation voltage – non-Darlington
connection (see Note 4)
ISW = 1 A, RPIN8 = 82 Ω to VCC,
forced 20
Full range
0.45
0.7
V
DC current gain
ISW = 1 A, VCE = 5 V
VCE = 40 V
100
µA
hFE
IC(off)
Collector off-state current
25°C
50
Full range
75
0.01
NOTES: 3. Low duty-cycle pulse testing is used to maintain junction temperature as close to ambient temperature as possible.
4. In the non-Darlington configuration, if the output switch is driven into hard saturation at low switch currents (≤300 mA) and high driver
currents (≥30 mA), it may take up to 2 µs for the switch to come out of saturation. This condition effectively shortens the off time at
frequencies ≥30 kHz, becoming magnified as temperature increases. The following output drive condition is recommended in the
non-Darlington configuration:
Forced of output switch = IC,SW / (IC,driver − 7 mA) ≥ 10,
where 7 mA is required by the 100-Ω resistor in the emitter of the driver to forward bias the Vbe of the switch.
COMPARATOR
PARAMETER
TEST CONDITIONS
Vth
Threshold voltage
∆Vth
IIB
Threshold-voltage line regulation
Input bias current
VCC = 5 V to 40 V
VIN = 0 V
TA
MIN
TYP
MAX
25°C
1.225
1.25
1.275
Full range
1.21
1.29
UNIT
V
Full range
1.4
5
mV
Full range
−20
−400
nA
MIN
MAX
UNIT
TOTAL DEVICE
PARAMETER
ICC
Supply current
TEST CONDITIONS
VCC = 5 V to 40 V, CT = 1 nF,
VPIN7 = VCC, VPIN5 > Vth,
VPIN2 = GND, all other pins open
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TA
Full range
4
mA
3
SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
100
1.8
VCC = 5 V
Pin 7 = VCC
Pin 5 = GND
TA = 25°C
VCE(SAT), Output Switch
Saturation Voltage (V)
tON-OFF, Output Switch
On-Off Time (µs)
1000
tON
tOFF
10
1
0.01
0.1
1
CT, Oscillator Timing Capacitor (nF)
1.5
1.4
1.3
1.2
1.1
0.4
340
1.0
Force Beta = 20
0.6
VCC = 5 V
Pin 7 = VCC
Pin 2, 3, 5 = GND
TA = 25°C
0.2
0.2
0.4 0.6 0.8 1.0
1.2
1
IC, Collector Current (A)
1.4
1.6
Figure 3. Output Switch Saturation Voltage vs
Collector Current (Common-Emitter Configuration)
260
240
220
200
−50
−25
ICC, Supply Current (mA)
2.0
1.6
CT = 1 nF
Pin 7 = VCC
Pin 2 = GND
TA = 25°C
0.0
5
10
15
20
25
30
VCC, Supply Voltage (V)
35
40
Figure 5. Standby Supply Current vs
Supply Voltage
4
POST OFFICE BOX 655303
0
25
50
75
100
TA, Ambient Temperature (°C)
125
Figure 4. Current-Limit Sense Voltage vs
Temperature
2.4
0
1.6
280
2.8
0.4
1.4
300
3.2
0.8
1.2
320
3.6
1.2
1
1.0
VCC = 5 V
ICHG=DISCHG
I
360
0.4
0.8
380
Darlington Connection
0.8
0.6
Figure 2. Output Switch Saturation Voltage vs
Emitter Current (Emitter-Follower Configuration)
1.2
0.0
0
0.0
0
0.2
IE, Emitter Current (A)
VIPK, Current Limit
Sense Voltage (mV)
VCE(SAT), Output Switch
Saturation Voltage (V)
1.6
1.0
1
0
0.0
10
Figure 1. Output Switch On-Off Time vs
Oscillator Timing Capacitor
1.4
VCC = 5 V
Pin 1, 7, 8 = VCC
Pin 3, 5 = GND
TA = 25°C
1.7
• DALLAS, TEXAS 75265
SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
170 µH
L
1
8
180 Ω
S Q
Q2
1N5819
Q1
R
2
7
Ipk
RSC
0.22 Ω
VIN
12 V
6
+
3
CT
VCC
+
_ Comparator
100 µF
1.25-V
Reference
Regulator
CT
1500 pF
4
5
1.0 µH
R2
R1
2.2 kΩ
CO
330 µF
47 kΩ
+
VOUT
28 V/175 mA
VOUT
100 µF
+
Optional Filter
TEST
RESULTS
CONDITIONS
Line Regulation
VIN = 8 V to 16 V, IO = 175 mA
30 mV ± 0.05%
Load Regulation
VIN = 12 V, IO = 75 mA to 175 mA
10 mV ± 0.017%
Output Ripple
VIN = 12 V, IO = 175 mA
400 mVPP
Efficiency
VIN = 12 V, IO = 175 mA
87.7%
Output Ripple With Optional Filter
VIN = 12 V, IO = 175 mA
40 mVPP
Figure 6. Step-Up Converter
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SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
R*
8
1
7
7
2
1
VOUT
2
RSC
RSC
VIN
8
VOUT
6
VIN
6
*R " 0 for constant VIN
2a. External npn Switch
2b. External pnp Saturated Switch (see Note 5)
NOTE 5: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤300 mA) and high driver currents
(≥30 mA), it may take up to 2 µs to come out of saturation. This condition will shorten the off time at frequencies ≥30 kHz and is magnified
at high temperatures. This condition does not occur with a Darlington configuration because the output switch cannot saturate. If a
non-Darlington configuration is used, the output drive configuration in Figure 2b is recommended.
Figure 7. External Current-Boost Connections for IC Peak Greater Than 1.5 A
6
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SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
1
8
S Q
Q2
Q1
R
2
7
VIN
25 V
Oscillator
6
+
1N5819
Ipk
RSC
0.33 Ω
CT
3
VCC
+
_ Comparator
100 µF
1.25-V
Reference
Regulator
L
220 µH
CT
470 pF
4
5
1.0 µH
R2
R1
1.2 kΩ
VOUT
5 V/500 mA
3.8 kΩ
CO
470 µF
+
VOUT
100 µF
+
Optional Filter
TEST
RESULTS
CONDITIONS
Line Regulation
VIN = 15 V to 25 V, IO = 500 mA
12 mV ± 0.12%
Load Regulation
VIN = 25 V, IO = 50 mA to 500 mA
3 mV ± 0.03%
Output Ripple
VIN = 25 V, IO = 500 mA
120 mVPP
Short-Circuit Current
VIN = 25 V, RL = 0.1 Ω
1.1 A
Efficiency
VIN = 25 V, IO = 500 mA
83.7%
Output Ripple With Optional Filter
VIN = 25 V, IO = 500 mA
40 mVPP
Figure 8. Step-Down Converter
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7
SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
8
1
1
VOUT
8
7
2
VOUT
RSC
RSC
VIN
7
2
6
VIN
6
4b. External pnp Saturated Switch
4a. External npn Switch
Figure 9. External Current-Boost Connections for IC Peak Greater Than 1.5 A
8
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SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
1
8
S Q
Q2
Q1
R
2
7
VIN
Oscillator
6
4.5 V to
6.0 V
+
L
88 µH
Ipk
RSC
0.24 Ω
CT
3
VCC
+
_ Comparator
100 µF
1.25-V
Reference
Regulator
1N5819
+
1500 pF
4
5
1.0 µH
R1
R2
8.2 kΩ
VOUT
−12 V/100 mA
953 Ω
CO
1000 µF
VOUT
100 µF
+
+
Optional Filter
TEST
RESULTS
CONDITIONS
Line Regulation
VIN = 4.5 V to 6 V, IO = 100 mA
3 mV ± 0.12%
Load Regulation
VIN = 5 V, IO = 10 mA to 100 mA
0.022 V ± 0.09%
Output Ripple
VIN = 5 V, IO = 100 mA
500 mVPP
Short-Circuit Current
VIN = 5 V, RL = 0.1 Ω
910 mA
Efficiency
VIN = 5 V, IO = 100 mA
62.2%
Output Ripple With Optional Filter
VIN = 5 V, IO = 100 mA
70 mVPP
Figure 10. Voltage-Inverting Converter
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9
SLLS654A – APRIL 2005 – REVISED JANUARY 2007
TYPICAL CHARACTERISTICS
8
1
1
8
7
2
VOUT
7
2
VOUT
VIN
6
VIN
6a. External npn Switch
6
6b. External pnp Saturated Switch
Figure 11. External Current-Boost Connections for IC Peak Greater Than 1.5 A
10
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SLLS654A – APRIL 2005 – REVISED JANUARY 2007
APPLICATION INFORMATION
calculations of key parameters
CALCULATION
ton/toff
(ton + toff)
toff
ton
V out ) V F * V in(min)
V in(min) * V sat
1
f
t on ) t off
t on
t
off
ǒt on
*5
4
Ipk(switch)
2I out(max)
Rsc
0.3
I pk(switch)
CO
10
V in * V sat
1
f
t on ) t off
ǒ
ǒt on
t on
4
Ǔ
t on
)1
t off
ǒ
ǒVin(min) * VsatǓ
9
I outt on
V rippleǒppǓ
I pk(switch)
Ǔ
t on(max)
ŤV Ť ) V
out
F
1
f
t on ) t off
t on
t
off
) t offǓ * t off
VOLTAGE INVERTING
V out ) V F
V in(min) * V sat * V out
) 1
CT
L(min)
STEP DOWN
STEP UP
t on
t
off
) 1
) t offǓ * t off
10
*5
t on
) 1
ǒt on
) t offǓ * t off
4
10 *5 t on
ǒ
2I out(max)
2I out(max)
0.3
I pk(switch)
0.3
I pk(switch)
ǒ
I pk(switch)
I pk(switch)ǒt on ) t offǓ
8V rippleǒppǓ
POST OFFICE BOX 655303
Ǔ
ǒVin(min) * Vsat * VoutǓ
• DALLAS, TEXAS 75265
t on(max)
ǒ
9
Ǔ
t on
)1
t off
Ǔ
ǒVin(min) * VsatǓ
I pk(switch)
t on(max)
I outt on
V rippleǒppǓ
11
PACKAGE OPTION ADDENDUM
www.ti.com
29-Jan-2007
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
MC33063AQDRQ1
ACTIVE
SOIC
D
Pins Package Eco Plan (2)
Qty
8
2500 Green (RoHS &
no Sb/Br)
Lead/Ball Finish
CU NIPDAU
MSL Peak Temp (3)
Level-1-260C-UNLIM
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
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information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
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