MICROELECTRONICS
A
A
Power Management
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
Description
GM1117 of positive adjustable and fixed regulators is de-
signed to provide 1.0A output with low dropout voltage per-
formance. On-chip trimming adjusts the reference voltage
to 1%. For usage on working in post regulators or micro-
processor power supplies, low voltage operation and fast
transient response are required.
Pin-to-pin compatible with the LT1086 family of regulators,
GM1117 is available in surface-mount SOT-223 and TO-
252 packages.
Features
Adjustable or Fixed Output
Output Current of 1.0A
Dropout Voltage (Typical) 1.15V @ 1.0A
Line Regulation 0.2% max.
Load Regulation 0.4% max.
Fast Transient Response
Current Limit Protection
Thermal Shutdown Protection
Application
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Microprocessor Supply
Hard Drive Controllers
Battery Chargers
Adjustable Power Supply
TYPICAL APPLICATION CIRCUITS
(Adjustable Version)
(Fixed Version)
V
IN
> 4.75V
GM1117-Adj
3
V
IN
ADJ
V
OUT
2
R1
133W
1.0%
R2
232W
1.0%
V
OUT
= 3.45V
V
IN
> 4.75V
3
V
IN
GM1117-3.3
V
OUT
2
GND
V
OUT
= 3.3V
+
1
C1
10µF
Tant
+
C2
10µF
Tant. Min
+
1
C1
10µF
Tant
+
C2
10µF
Tant. Min
V
OUT
=
V
REF
X (1 +
R2
) + I
ADJ
X
R2
R1
Notes:
1. C1 needed if device is far from filter capacitors
2. C2 minimum value required for stability
www.gammamicro.com
GM1117
V0.1
1
MICROELECTRONICS
A
A
Power Management
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
MARKING INFORMATION & PIN CONFIGURATIONS
(Top View)
TO-252 (DPAK)
TO-220
TO-263-2 (D PAK)
2
SOT-223
GM1117
VVAYWW
GM1117
VVAYWW
GM1117
VVAYWW
GM1117
VVAYWW
V
OUT
V
IN
V
IN
V
OUT
ADJ/ GND*
ADJ/ GND*
V
IN
V
OUT
ADJ/ GND*
V
OUT
ADJ/GND*
V
IN
V V/VVV
A
Y
WW
= Output Voltage (50 = 5.0V, 285= 2.85V ,A =Adj )
= Assembly Location
= Year
= Weekly
On fixed versions Pin 1 = GND,
on adjustable versions Pin 1 = ADJ
Tab = V
OUT
ORDERING INFORMATION
Ordering Number
GM1117-AST3T
GM1117-AST3R
GM1117-ATC3T
GM1117-ATC3R
GM1117-ATB3T
GM1117-ATA3T
GM1117-ATA3R
GM1117-1.5ST3T
GM1117-1.5ST3R
GM1117-1.5TC3T
GM1117-1.5TC3R
GM1117-1.5TB3T
GM1117-1.5TA3T
GM1117-1.5TA3R
GM1117-1.8ST3T
GM1117-1.8ST3R
GM1117-1.8TC3T
Output Voltage
Adj
Adj
Adj
Adj
Adj
Adj
Adj
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.8
1.8
1.8
1.8
1.8
1.8
1.8
Package
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
Shipping
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
GM1117
GM1117-1.8TC3R
GM1117-1.8TB3T
GM1117-1.8TA3T
GM1117-1.8TA3R
* For detail Ordering Number identification, please see last page.
2
MICROELECTRONICS
A
A
Power Management
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
ORDERING INFORMATION
(Continued)
Ordering Number
GM1117-2.5ST3T
GM1117- 2.5 ST3R
GM1117-2.5TC3T
GM1117-2.5TC3R
GM1117-2.5TB3T
GM1117-2.5TA3T
GM1117-2.5TA3R
GM1117-2.85ST3T
GM1117- 2.85 ST3R
GM1117-2.85TC3T
GM1117-2.85TC3R
GM1117-2.85TB3T
GM1117-2.85TA3T
GM1117-2.85TA3R
GM1117-3.0ST3T
GM1117- 3.0 ST3R
GM1117-3.0TC3T
GM1117-3.0TC3R
GM1117-3.0TB3T
GM1117-3.0TA3T
GM1117-3.0TA3R
GM1117- 3.3 ST3T
GM1117- 3.3 ST3R
GM1117-3.3TC3T
GM1117-3.3TC3R
GM1117-3.3TB3T
GM1117-3.3TA3T
GM1117-3.3TA3R
GM1117-5.0ST3T
GM1117- 5.0 ST3R
GM1117-5.0TC3T
GM1117-5.0TC3R
GM1117-5.0TB3T
GM1117-5.0TA3T
GM1117-5.0TA3R
Output Voltage
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.85
2.85
2.85
2.85
2.85
2.85
2.85
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.3
3.3
3.3
3.3
3.3
3.3
3.3
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Package
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
SOT-223
SOT-223
TO-252
TO-252
TO-220
TO-263
TO-263
Shipping
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
80 Units / Tube
2,500 Units / Tape & Reel
50 Units / Tube
50 Units / Tube
800 Units / Tape & Reel
* For detail Ordering Number identification, please see last page.
GM1117
3
MICROELECTRONICS
A
A
Power Management
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Power Dissipation
Input Voltage
Lead Temperature(Soldering, 10sec)
SYMBOL
P
D
V
IN
T
LEAD
T
J
T
STG
VALUE
Internally limited
7.0
300
0 to 125
0 to 150
-65 to + 150
UNIT
W
V
°C
°C
°C
Operating Junction Temperature Range
Control Section
Power Transistor
Storage Temperature Range
Thermal Characteristics
SOT-223
Thermal Resistance, Junction-to-Case
DPAK
Thermal Resistance, Junction-to-Case
2
D PAK
Thermal Resistance, Junction-to-Case
15
R
qJC
6.0
3.0
°C/ W
BLOCK DIAGRAM
(Fixed Version)
V
OUT
VIN
Thermal
Shutdown
-
Bandgap
Reference
+
Error
Amplifier
Output
Current
Limit
GND
(Adjustable Version)
V
OUT
GM1117
V
IN
Thermal
Shutdown
-
Bandgap
Reference
+
Error
Amplifier
Output
Current
Limit
ADJ
4
MICROELECTRONICS
A
A
Power Management
GM1117
1.0A LOW DROPOUT PRECISION LINEAR REGULATORS
ELECTRICAL CHARACTERISTICS
(Typicals and limits appearing in normal type apply for T
J
= 25°C)
Parameter
Reference Voltage
GM1117-Adj
GM1117-1.8
GM1117-2.5
Output Voltage
GM1117-3.3
GM1117-5.0
GM1117-Adj
GM1117-1.8
Line Regulation
GM1117-2.5
GM1117-3.3
GM1117-5.0
GM1117-Adj
GM1117-1.8
Load Regulation
GM1117-2.5
GM1117-3.3
GM1117-5.0
Dropout Voltage
Current Limit
Minimum Load Current
GM1117-Adj
GM1117-1.8
GM1117-2.5
Quiescent Current
GM1117-3.3
GM1117-5.0
Adjust Pin Current
Temp. Coefficient
Thermal Regulation
Ripple Rejection
T
C
R
A
GM1117-Adj
I
ADJ
I
Q
V
D
I
CL
I
O MIN
REG
LOAD
REG
LINE
V
O
Symbol
V
REF
Condition
I
OUT
=10mA, V
IN
= 5V
10mA I
OUT
1.0A, 2.65V V
IN
7V
I
OUT
=10mA, V
IN
=3.3V
0 I
OUT
1.0A, 3.3V V
IN
7V
I
OUT
=10mA, V
IN
=4V
0 I
OUT
1.0A, 4V V
IN
7V
I
OUT
=10mA, V
IN
=4.8V
0 I
OUT
1.0A, 4.8V V
IN
7V
I
OUT
=10mA, V
IN
=6.5V
0
I
OUT
1.0A, 6.5V V
IN
7V
V
IN
V
IN
V
IN
V
IN
V
IN
7V
7V
7V
7V
7V
1.0A
I
OUT
=10mA, 2.75V
I
OUT
=10mA, 3.3V
I
OUT
=10mA, 4V
I
OUT
=10mA, 4.8V
I
OUT
=10mA, 6.5V
Min
1.238
1.225
1.782
1.764
2.475
2.450
3.267
3.234
4.950
4.900
Typ
1.250
1.250
1.800
1.800
2.500
2.500
3.300
3.300
5.000
5.000
0.04
0.04
0.04
0.04
0.04
0.20
0.20
0.20
0.20
0.20
1.15
Max
1.262
1.275
1.818
1.836
2.525
2.550
3.333
3.366
5.050
5.100
0.20
0.20
0.20
0.20
0.20
0.40
0.40
0.40
0.40
0.40
1.3
Unit
V
V
V
V
V
%
V
IN
-V
OUT
=1.5V, 10mA I
O
V
IN
=3.3V, 10mA I
O
V
IN
=4.0V, 10mA I
O
V
IN
=4.8V, 10mA I
O
V
IN
=6.5V, 10mA I
O
1.0A
1.0A
1.0A
1.0A
%
I
OUT
=1.0A
V
IN
-V
OUT
=3V
V
IN
=5V
V
IN
=3.3V, 10mA I
O
V
IN
=4.0V, 10mA I
O
V
IN
=4.8V, 10mA I
O
V
IN
=6.5V, 10mA I
O
1.0A
1.0A
1.0A
1.0A
V
A
1.1
3.1
3
7
7
7
7
7
13
13
mA
mA
13
13
90
µA
%/°C
%/W
dB
I
OUT
=10mA, 2.75V
V
IN
7V
55
0.005
0.003
60
72
V
IN
-V
OUT
=1.5V, I
OUT
=10mA
T
A
=25°C, 30ms pulse
V
IN
-V
OUT
=1.5V, I
OUT
=1.0A
GM1117
5
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