GM1117
1A LOW DROPOUT
PRECISION VOLTAGE REGULATOR
Features
Description
The GM1117 is a positive low dropout
regulator and is available in an adjustable
version and fixed output voltage from 1.5V to
5.0V. All internal circuitry is designed to
operate down to 800mV input to output
differential and the dropout voltage is fully
specified as a function of load current. On chip
trimming adjusts the reference/output voltage
to within
±
1%. Current limit is also trimmed in
order to minimize the stress on both the
regulator and the power source circuitry under
overloaded conditions.
Adjustable or Fixed Output
Output Current of 1.0A
Dropout Voltage 1.5V max @ 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
Battery Powered Equipment
Reference Voltage Sources
Hard Drive Controllers
Battery Chargers
Adjustable Power Supply
Typical Application Circuits
V
IN
V
OUT
R1
133Ω
C1
10µF
R2
232Ω
V
IN
V
OUT
GM1117
GM1117-x.x
C2
10µF
C1
10µF
C2
10µF
V
OUT
Adjustable Regulator
R2
=1.25V
( 1+
R1
Fixed Output Voltage Regulator
)
www.gammamicro.com.tw
GM1117
V1.01
1
GM1117
1A LOW DROPOUT
PRECISION VOLTAGE REGULATOR
Marking Information and Pin Configurations (Top View)
TO 252
(D-PAK)
TO 220
TO 263
(D
2
-PAK)
SOT223
GM1117
VVAYWW
GM1117
VVAYWW
GM1117
VVAYWW
1. Gnd/Adj
GM1117
VVAYWW
3. V
IN
2. V
OUT
1. Gnd/Adj
VV: Voltage suffix (15 = 1.5V, 50 = 5.0V…A = Adj)
A: Assembly / Test site code
Y: Year
WW: Week
2. V
OUT
3. V
IN
2. V
OUT
1. Gnd/Adj
3. V
IN
2. V
OUT
1. Gnd/Adj
3. V
IN
GM1117
V1.01
2
GM1117
1A LOW DROPOUT
PRECISION VOLTAGE REGULATOR
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
GM1117-1.8TC3R
GM1117-1.8TB3T
GM1117-1.8TA3T
GM1117-1.8TA3R
GM1117-2.5ST3T
GM1117-2.5ST3R
GM1117-2.5TC3T
GM1117-2.5TC3R
GM1117-2.5TB3T
GM1117-2.5TA3T
GM1117-2.5TA3R
2.5V
1.8V
1.5V
Adj
Output Voltage
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
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
GM1117
V1.01
3
800 Units / Tape & Reel
GM1117
1A LOW DROPOUT
PRECISION VOLTAGE REGULATOR
Ordering Information
(Continued)
Ordering Number
GM1117-2.85ST3T
GM1117-2.85ST3R
GM1117-2.85TC3T
GM1117-2.85TC3R
GM1117-2.85TB3T
GM1117-2.85TA3T
GM1117-2.85TA3R
GM1117-3.0ST3T
GM1117-3.0ST3R
GM1117-3.0TC3T
GM1117-3.0TC3R
GM1117-3.0TB3T
GM1117-3.0TA3T
GM1117-3.0TA3R
GM1117-3.3ST3T
GM1117-3.3ST3R
GM1117-3.3TC3T
GM1117-3.3TC3R
GM1117-3.3TB3T
GM1117-3.3TA3T
GM1117-3.3TA3R
GM1117-5.0ST3T
GM1117-5.0ST3R
GM1117-5.0TC3T
GM1117-5.0TC3R
GM1117-5.0TB3T
GM1117-5.0TA3T
5.0V
3.3V
3.0V
2.85V
Output Voltage
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
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
GM1117
V1.01
4
GM1117-5.0TA3R
GM1117
1A LOW DROPOUT
PRECISION VOLTAGE REGULATOR
Absolute Maximum Ratings
PARAMETER
Input Voltage
SOT-223
Thermal Resistance,
Junction to Case
TO-252 (D PAK)
TO-263 (D
2
PAK)
Operating Junction
Temperature
Storage Temperature
Control Section
Power Transistor
T
stg
T
J
θ
JA
SYMBOL
V
IN
RATINGS
7
15.0
6.0
3.0
0 to 125
0 to 150
- 60 to 150
℃
℃
℃/W
UNITS
V
Block Diagram
V
IN
V
OUT
ADJ
For
fixed
output
Options
GND
GM1117
V1.01
5
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