MOTOROLA MC33269ST-3.3T3, MC33269T, MC33269DTRK-3.3, MC33269DTRK-5.0, MC33269DT-3.3 Datasheet
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Semiconductor Components Industries, LLC, 2000
April, 2000 – Rev. 8
1 Publication Order Number:
MC33269/D
MC33269
Low Dropout Positive Fixed
and Adjustable Voltage
Regulators
The MC33269 series are low dropout, medium current, fixed and
adjustable, positive voltage regulators specifically designed for use in
low input voltage applications. These devices offer the circuit designer
an economical solution for precision voltage regulation, while keeping
power losses to a minimum.
The regulator consists of a 1.0 V dropout composite PNP–NPN pass
transistor, current limiting, and thermal shutdown.
• 3.3 V, 5.0 V, 12 V and Adjustable Versions.
2.85 V version available as MC34268.
• Space Saving DPAK, SOP–8 and SOT–223 Power Packages
• 1.0 V Dropout
• Output Current in Excess of 800 mA
• Thermal Protection
• Short Circuit Protection
• Output Trimmed to 1.0% Tolerance
DEVICE TYPE / NOMINAL OUTPUT VOLTAGE
MC33269D Adj MC33269D–5.0 5.0 V
MC33269DT Adj MC33269DT–5.0 5.0 V
MC33269T Adj MC33269T–5.0 5.0 V
MC33269D–3.3 3.3 V MC33269D–12 12 V
MC33269DT–3.3 3.3 V MC33269DT–12 12 V
MC33269T–3.3 3.3 V MC33269T–12 12 V
MC33269ST–3.3 3.3 V
TO–220AB
T SUFFIX
CASE 221A
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See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
8
1
8
7
6
5
1
2
3
4
Gnd/Adj
SOP–8
D SUFFIX
CASE 751
DPAK
DT SUFFIX
CASE 369A
V
in
NC
NC
1. Gnd/Adj
123
2. V
out
3. V
in
(Top View)
(Top View)
1
3
V
out
V
out
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
Pin: 1. Gnd/Adj
2. V
out
3. V
in
3
1
2
123
(Top View)
SOT–223
ST SUFFIX
CASE 318E
1
3
MC33269
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MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Input Voltage V
in
20 V
Power Dissipation
Case 369A (DPAK)
TA = 25°C P
D
Internally Limited W
Thermal Resistance, Junction–to–Ambient θ
JA
92 °C/W
Thermal Resistance, Junction–to–Case θ
JC
6.0 °C/W
Case 751 (SOP–8)
TA = 25°C P
D
Internally Limited W
Thermal Resistance, Junction–to–Ambient θ
JA
160 °C/W
Thermal Resistance, Junction–to–Case θ
JC
25 °C/W
Case 221A
TA = 25°C P
D
Internally Limited W
Thermal Resistance, Junction–to–Ambient θ
JA
65 °C/W
Thermal Resistance, Junction–to–Case θ
JC
5.0 °C/W
Case 318E
TA = 25°C P
D
Internally Limited W
Thermal Resistance, Junction–to–Ambient θ
JA
245 °C/W
Thermal Resistance, Junction–to–Case θ
JC
15 °C/W
Operating Junction Temperature Range T
J
–40 to +150 °C
Storage Temperature T
stg
–55 to +150 °C
NOTE: ESD data available upon request.
ELECTRICAL CHARACTERISTICS (C
O
= 10 µF, TA = 25°C, for min/max values TJ = –40°C to +125°C, unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
Output Voltage (I
out
= 10 mA, TJ = 25°C) V
O
V
3.3 Suffix (VCC = 5.3 V) 3.27 3.3 3.33
5.0 Suffix (VCC = 7.0 V) 4.95 5.0 5.05
12 Suffix (VCC = 14 V) 11.88 12 12.12
Output Voltage (Line, Load and Temperature) (Note 1.) V
O
V
(1.25 V ≤ Vin – V
out
≤ 15 V, I
out
= 500 mA)
(1.35 V ≤ Vin – V
out
≤ 10 V, I
out
= 800 mA)
3.3 Suffix 3.23 3.3 3.37
5.0 Suffix 4.9 5.0 5.1
12 Suffix 11.76 12 12.24
Reference Voltage (I
out
= 10 mA, Vin – V
out
= 2.0 V, TJ = 25°C) V
ref
1.235 1.25 1.265 V
for Adjustable Voltage
Reference Voltage (Line, Load and Temperature) (Note 1.) V
ref
1.225 1.25 1.275 V
(1.25 V ≤ Vin – V
out
≤ 15 V, I
out
= 500 mA)
(1.35 V ≤ Vin – V
out
≤ 10 V, I
out
= 800 mA)
for Adjustable Voltage
Line Regulation Reg
line
– – 0.3 %
(I
out
= 10 mA, Vin = [V
out
+ 1.5 V] to Vin = 20 V , TJ = 25°C)
Load Regulation (Vin = V
out
+ 3.0 V, I
out
= 10 mA to 800 mA, TJ = 25°C) Reg
load
– – 0.5 %
Dropout Voltage Vin–V
out
V
(I
out
= 500 mA) – 1.0 1.25
(I
out
= 800 mA) – 1.1 1.35
Ripple Rejection RR 55 – – dB
(10 Vpp, 120 Hz Sinewave; I
out
= 500 mA)
Current Limit (Vin – V
out
= 10 V) I
Limit
800 – – mA
Quiescent Current (Fixed Output)
(1.5 V ≤ V
out
≤ 3.3 V)
(5 V ≤ V
out
≤ 12 V)
I
Q
–
–
5.5
–
8.0
20
mA
1. The MC33269–12, Vin – V
out
is limited to 8.0 V maximum, because of the 20 V maximum rating applied to Vin.
MC33269
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ELECTRICAL CHARACTERISTICS (C
O
= 10 µF, TA = 25°C, for min/max values TJ = –40°C to +125°C, unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
Minimum Required Load Current I
Load
mA
Fixed Output Voltage – – 0
Adjustable Voltage 8.0 – –
Adjustment Pin Current I
Adj
– – 120 µA
V
in
V
out
V
Adj Gnd
Trim Links
Internal Schematic
This device contains 38 active transistors.
MC33269
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4
IO, OUTPUT LOAD CURRENT (mA)
in
V
out
–V
Figure 1. Dropout Voltage versus
Output Load Current
1.5
1.3
1.1
0.9
0.7
0.5
0 200 400 600 800 1000
Figure 2. Transient Load Regulation
,
DR
O
P
O
U
T
VOLTAG
E
(V)
20 ms/DIV
Cin = 10 µF
CO = 10 µF Tantalum
Vin = VO + 3.0 V
Preload = 0.1 A
0 A
0.5 A
100
, OUTPUTI
O
V
O
, OUTPUT∆
VOLTAGE DEVIATIONCURRENT
TA = 25°C
TA = –40°C
TA = 125°C
mV/Div
–55
900
–25 0 25 50 75 100 125
940
980
1020
1060
1100
Figure 3. Dropout Voltage
versus Temperature
Figure 4. MC33269–XX Output DC Current versus
Input–Output Differential Voltage
V
TA, AMBIENT TEMPERATURE (°C)
IO = 800 mA
,
OV
ER
VOLTAG
E
IN
PU
T
T
HRESH
OL
D
(
%
V
)
FB(OV) FB
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
2.0 4.0 6.0 8.0 10 12 14 16
INPUT–OUTPUT VOLTAGE DIFFERENTIAL (V)
TA = 25°C
MC33269D–XX
L = 25 mm Copper
OUTPUT CURRENT (A)
70
0.1 1.0 10 100
60
50
40
30
20
Figure 5. MC33269 Ripple Rejection
versus Frequency
Figure 6. MC33269–ADJ Ripple Rejection
versus Frequency
RR
,
R
I
PP
L
E REJE
CTION
R
ATIO
(d
B
)
f, FREQUENCY (kHz)
20
30
40
50
60
70
RR, RIPPLE REJECTION RATIO (dB)
100101.0
f, FREQUENCY (kHz)
Vin = 8.0 V
V
out
= 5.0 V
IL = 800 mA
C
Adj
= 22 µF
TA = 25°C
0.1
Vin = VO + 3.0 V
IL = 800 mA
TA = 25°C
VO = 12 V
VO = 3.3 V or 5.0 V
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