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鈥揘PN pass
transistor, current limiting, and thermal shutdown.
鈥?/div>
3.3 V, 5.0 V, 12 V and Adjustable Versions.
2.85 V version available as MC34268.
鈥?/div>
Space Saving DPAK, SOP鈥? and SOT鈥?23 Power Packages
鈥?/div>
1.0 V Dropout
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Output Current in Excess of 800 mA
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Thermal Protection
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Short Circuit Protection
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Output Trimmed to 1.0% Tolerance
DEVICE TYPE / NOMINAL OUTPUT VOLTAGE
MC33269D
MC33269DT
MC33269T
MC33269D鈥?.3
MC33269DT鈥?.3
MC33269T鈥?.3
MC33269ST鈥?.3
Adj
Adj
Adj
3.3 V
3.3 V
3.3 V
3.3 V
MC33269D鈥?.0
MC33269DT鈥?.0
MC33269T鈥?.0
MC33269D鈥?2
MC33269DT鈥?2
MC33269T鈥?2
5.0 V
5.0 V
5.0 V
12 V
12 V
12 V
http://onsemi.com
SOP鈥?
D SUFFIX
CASE 751
8
1
Gnd/Adj
Vout
Vin
1
2
3
4
(Top View)
8
7
6
5
NC
Vout
NC
1
3
DPAK
DT SUFFIX
CASE 369A
1. Gnd/Adj
2. Vout
1
2
3
3. Vin
SOT鈥?23
ST SUFFIX
CASE 318E
3
(Top View)
1
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
TO鈥?20AB
T SUFFIX
CASE 221A
1
2
3
Pin: 1.
2.
3.
1 2 3
Gnd/Adj
Vout
Vin
(Top View)
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
漏
Semiconductor Components Industries, LLC, 2000
1
April, 2000 鈥?Rev. 8
Publication Order Number:
MC33269/D
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