Description
GM66102 of positive fixed and adjustable regulators is de-
signed to provide up to 1A output with high current, high ac-
curacy, 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, and loads, these devices are also useful in
lower current, extremely low dropout-critical systems,
where their minimal dropout voltage and ground current val-
ues are important characteristics.
GM66102 is fully protected against overcurrent, reversed
input polarity (or reversed battery connection), reversed
lead insertion, over-temperature operation, and transient
voltage spikes (positive or negative). GM66102 is available
in TO-220, SOT-223, TO-252 and TO-263 packages.
Features
Fixed and Adjustable Voltage Versions
Output Current up to 1A
Low Dropout Voltage 350mV @ 1A
Low Ground Current
Accurate 1% Guaranteed Tolerance
Extremely Fast Transient Response
Reverse-battery Protection
"Load Dump" Protection
Extremely Fast Transient Response
Application
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Battery Powered Equipment
Automotive Electronics
TYPICAL APPLICATION CIRCUITS
3.3V
± 5%
V
IN
GM66102 - 2.5
GND
V
OUT
2.5V
± 1% @1A
C
IN
+
22µF
+
33µF
C
IN
is required if regulator is located an appreciable distance from power supply filter.
www.gammamicro.com
GM66102
V0.1
1
GM 431
MARKING INFORMATION & PIN CONFIGURATIONS
(TOP VIEW)
TO-220
TO-263-2 (D PAK)
GND
GM66102
GM66102
VVAYWW
VVAYWW
2
TO-252 (DPAK)
GND
GM66102
VVAYWW
V
IN
GND
V
OUT
V
OUT
GND
V
IN
V
IN
GND
SOT-223
V
OUT
GND
GM66102
VVAYWW
V V / VVV
A
Y
WW
= Output Voltage (33=3.3V , 120=12V)
= Assembly Location
= Year
= Weekly
V
OUT
GND
V
IN
ORDERING INFORMATION
Ordering Number
GM66102-1.5TB3T
GM66102-1.5ST3T
GM66102-1.5ST3R
GM66102-1.5TC3T
GM66102-1.5TC3R
GM66102-1.5TA3T
GM66102-1.5TA3R
GM66102-1.8TB3T
GM66102-1.8ST3T
GM66102-1.8ST3R
GM66102-1.8TC3T
GM66102-1.8TC3R
GM66102-1.8TA3T
GM66102-1.8TA3R
GM66102-2.5TB3T
GM66102-2.5ST3T
Output Voltage
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
1.8V
1.8V
1.8V
1.8V
1.8V
1.8V
1.8V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
Package
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
Shipping
50 Units/ Tube
80 Units/ Tube
2,500 Units/ Tape & Reel
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
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
50 Units / Tube
800 Units/ Tape & Reel
GM66102
2
GM66102-2.5ST3R
GM66102-2.5TC3T
GM66102-2.5TC3R
GM66102-2.5TA3T
GM66102-2.5TA3R
* For detail Ordering Number identification, please see last page.
ORDERING INFORMATION
(Continued)
Ordering Number
GM66102-3.0TB3T
GM66102-3.0ST3T
GM66102-3.0ST3R
GM66102-3.0TC3T
GM66102-3.0TC3R
GM66102-3.0TA3T
GM66102-3.0TA3R
GM66102-3.3TB3T
GM66102-3.3ST3T
GM66102-3.3ST3R
GM66102-3.3TC3T
GM66102-3.3TC3R
GM66102-3.3TA3T
GM66102-3.3TA3R
GM66102-5.0TB3T
GM66102-5.0ST3T
GM66102-5.0ST3R
GM66102-5.0TC3T
GM66102-5.0TC3R
GM66102-5.0TA3T
GM66102-5.0TA3R
GM66102-12TB3T
GM66102-12ST3T
GM66102-12ST3R
GM66102-12TC3T
GM66102-12TC3R
GM66102-12TA3T
GM66102-12TA3R
Output Voltage
3.0V
3.0V
3.0V
3.0V
3.0V
3.0V
3.0V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
12V
12V
12V
12V
12V
12V
12V
Package
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
TO-220
SOT-223
SOT-223
TO-252
TO-252
TO-263-2
TO-263-2
Shipping
50 Units/ Tube
80 Units/ Tube
2,500 Units/ Tape & Reel
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
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
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
50 Units / Tube
800 Units/ Tape & Reel
* For detail Ordering Number identification, please see last page.
GM66102
3
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
Thermal Resistance (Junction to case)
TO- 223
TO- 252
TO- 263
TO- 220
SYMBOL
V
IN
T
J
Value
26
-40 to +125
UNIT
V
°C
R
qJC
15
6.0
2.0
2.0
°C/W
BLOCK DIAGRAM
V
IN
O.V.
I
Limit
28V
Ref.
1.24V
V
OUT
+
-
R1
GM66102
Thermal
Shut-down
R2
GND
4
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise noted)
Unless otherwise specified: T
J
= 25°C;
Bold
values are guaranteed across the operating temperature range.
Parameter
Output Voltage
(Note2)
Line Regulation
Load Regulation
Output Voltage change with
Temperature Coef. (Note 6)
Dropout Voltage
Conditions
I
O
= 10 mA
10mA
I
O
I
FL
, (V
OUT
+ 1V) V
IN
26V
Min
-1
-2
Typ
Max
1
2
Unit
%
%
%
%
I
O
= 10mA, (V
OUT
+ 1V) V
IN
26V
V
IN
= V
OUT
+ 5V, 10mA I
OUT
I
FL
DV
OUT
/
DT
DV
OUT
=
-1% (Note 3)
I
O
= 100mA
I
O
= 750mA
I
O
= 1.0A
(For 1.50 Version)
0.06
0.20
20
0.5
1.0
100
ppm/°C
80
220
300
200
500
0.6
0.8
mV
I
O
= 100mA
I
O
= 1.0A
I
O
= 100mA
I
O
= 1.0A
V
(For 1.80 Version)
0.3
0.5
V
Ground Current
Ground Pin Current at Dropout I
GNDDO
Current Limit
Output Noise Voltage e
n
, (10Hz to 100Hz)
I
O
= 100mA
I
O
= 750mA, V
IN
= V
OUT
+ 1V
I
O
= 1.0A
V
IN
= 0.5V less than specified V
OUT
,
I
OUT
= 10mA, (Note 5)
V
OUT
,= 0V (Note 4)
C
L
= 10µF
C
L
= 33µF
8
22
0.9
2.1
400
260
20
mA
mA
3.5
A
µV (rms)
Note 1:
Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle ( 1%).
The maximum continuous supply voltage is 26V.
Note 2:
Full Load current (I
FL
) is defined as 1.0A for the GM66102 series.
Note 3:
Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with
V
OUT
+ 1V applied to V
IN
Note 4:
V
IN
= V
OUT
(nominal) + 1V. For example, use V
IN
= 4.3V for a 3.3V regulator or use 6V for a 5V regulator. Employ pulse-testing
procedures to minimize temperature rise.
Note 5:
Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus
the ground pin current.
Note 6:
Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
GM66102
5
