Description
The GM66150 series of positive fixed and adjustable regu-
lators is designed to provide up to 1.5A output with high
current, high accuracy, and extremely low dropout voltage
performance. These regulators feature 300 to 350mV (full
load) dropout voltages, and very low ground current.
Although designed for high current loads, these devices
are also useful in lower current, extremely low dropout-
critical systems, where their minimal dropout voltage and
ground current values are important characteristics.
The GM66150 is fully protected against overcurrent, re-
versed input polarity (or reversed battery connection), re-
versed lead insertion, over-temperature operation, and tran-
sient voltage spikes (positive or negative).
Five pin fixed voltage versions feature logic level ON/OFF
control and an error flag which signals whenever the output
falls out of regulation.
On the GM66151 and GM66152, the ENABLE pin may be
tied to V
IN
if it is not required for ON/OFF control.
The GM66150 is available in 3-pin and 5-pin TO-220 and
surface mount TO-263 packages.
Features
Fixed and Adjustable Voltage Versions
Output Current up to 1.5A
Low Dropout Voltage 350mV @ 1.5A
Low Ground Current
Accurate 1% Guaranteed Tolerance
Extremely Fast Transient Response
Reverse-battery Protection
"Load Dump" Protection
Zero-Current shutdown mode(5-pin versions)
Error flag signals output out-of-regulation
(5-pin versions)
Application
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
High Efficiency "Green" Computer
Systems
Battery Powered Equipment
Automotive Electronics
5 V ± 5%
GM66150 - 3.3
+
3.3 V ± 1% @1.5A
V
OUT
= 1.24V X [1 + (R1 /R2)]
47µF
V
IN
R1
10µF
+
+
V
OUT
22µF
R2
Figure 1. Fixed Voltage Version
Figure 2. Adjustable Voltage Version
www.gammamicro.com
GM66150 SERIES
V0.1
1
TYPICAL APPLICATION CIRCUITS
GM 431
MARKING INFORMATION & PIN CONFIGURATIONS
(TOP VIEW)
2
SOT-223
GM66150
VVAYWW
TO-220- 5
TO-263-5(D PAK)
GM66151
VVAYWW
GM66151
VVAYWW
V
OUT
GND
V
IN
1
1
Pinout On all devices, the Tab is grounded.
TO-220- 5
TO-263-5(D PAK)
2
GM66150/ Three Terminal
Pin 1 = Input, 2 = Ground, 3 = Output
GM66151/ Five Terminal
(
Fixed Voltage Devices
)
GM6615X
AYWW
GM6615X
AYWW
1
(For GM66152 and GM66153)
1
V V,VVV = Output Voltage
(33=3.3V , 120=12V)
A
= Assembly Location
Y
= Year
WW
= Weekly
Pin 1 = Enable, 2 = Input, 3 = Ground,
4 = Output, 5 = Flag
GM66152/ Adjustable with ON/ OFF Control
Pin 1 = Enable, 2 = Input, 3 = Ground,
4 = Output, 5 = Adjust
GM66153/ Adjustable with Flag
Pin 1 = Flag, 2 = Input, 3 = Ground,
4 = Output, 5 = Adjust
ORDERING INFORMATION
Ordering Number
Output Voltage
Package
Shipping
GM66150
GM66150-1.5TA3T
GM66150-1.5TA3R
GM66150-1.5TB3T
GM66150-1.8TA3T
GM66150-1.8TA3R
GM66150-1.8TB3T
1.5V
1.5V
1.5V
1.8V
1.8V
1.8V
2.5V
2.5V
2.5V
2.5V
2.5V
3.0V
3.0V
3.0V
3.0V
3.0V
3.0V
3.0V
TO-263-2
TO-263-2
TO-220
TO-263-2
TO-263-2
TO-220
TO-263-2
TO-263-2
TO-220
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
TO-223
TO-223
TO-252
TO-252
50 Units/ Tube
800 Units/ Tape & Reel
50 Units/ Tube
50 Units/ Tube
800 Units/ Tape & Reel
50 Units/ Tube
50 Units/ Tube
800 Units/ Tape &Reel
50 Units/ Tube
80 Units/ Tube
2,500 Units/ Tape & Reel
50 Units/ Tube
800 Units/ Tape &Reel
50 Units/ Tube
80 Units/ Tube
2,500 Units/ Tape & Reel
80 Units/ Tube
2,500 Units/ Tape & Reel
GM66150 SERIES
2
GM66150-2.5TA3T
GM66150-2.5TA3R
GM66150-2.5TB3T
GM66150-2.5TC3T
GM66150-2.5TC3R
GM66150-3.0TA3T
GM66150-3.0TA3R
GM66150-3.0TB3T
GM66150-3.0ST3T
GM66150-3.0ST3R
GM66150-3.0TC3T
GM66150-3.0TC3R
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Power Dissipation
Input Supply Voltage (Note 1)
Lead Temperature (Soldering, 5 sec )
Storage Temperature Range
SYMBOL
P
D
V
IN
T
LEAD
T
STG
VALUE
Internally limited
-20 to +60
260
-65 to +150
UNIT
W
V
°C
°C
OPERATING RATINGS
PARAMETER
Maximum Operating Input Voltage
Operating junction Temperature Range
SYMBOL
V
IN
T
J
VALUE
26
-40 to +125
UNIT
V
°C
BLOCK DIAGRAM
IN
O.V.
I
Limit
28V
FLAG
OUT
+
-
1.18V
Ref.
1.24V
+
-
R1*
ADJ**
EN
Thermal
Shut-down
R2*
GND
* Feedback network in fixed version only
** Adjustable version only
GM66150 SERIES
5
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