Global Mixed-mode Technology Inc.
G1085-XX
3A Low-Dropout Linear Regulator
Features
Available in 1.5V, 1.8V, 2.5V, 3.3V version
TO-220, TO-263 package
Internal short circuit current limiting
Internal over temperature protection
Output current 3A
General Description
The G1085-XX is a low dropout linear regulator
with a dropout of 0.8V at 3A of load current. It is
available in three fixed voltages: 1.5V, 1.8V, 2.5V
and 3.3V. Refer to the G1085 for the adjustable
version.
The G1085-XX provides over temperature and
over current protection circuits to prevent it from
being damaged by abnormal operating conditions.
The G1085-XX is available in TO-220 and TO-263
packages. A minimum of 220µF tantalum electro-
lytic capacitor is required at the output to improve
the transient response and stability.
Applications
Post regulation for switching DC/DC con-
verter
High efficiency linear regulator
Battery powered instrumentation
Motherboard
Ordering Information
ORDER
NUMBER
G1085-15T33T
G1085-18T33T
G1085-25T33T
G1085-33T33T
G1085-15T53U
G1085-18T53U
G1085-25T53U
G1085-33T53U
ORDER NUMBER
MARKING
(Pb free)
G1085-15T33Tf
G1085-18T33Tf
G1085-25T33Tf
G1085-33T33Tf
G1085-15T53Uf
G1085-18T53Uf
G1085-25T53Uf
G1085-33T53Uf
G1085-15
G1085-18
G1085-25
G1085-33
G1085-15
G1085-18
G1085-25
G1085-33
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PACKAGE
TO-220
TO-220
TO-220
TO-220
TO-263
TO-263
TO-263
TO-263
1
GND
GND
GND
GND
GND
GND
GND
GND
PIN OPTION
2
3
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
* For other package types and pin options, please contact us at sales
@
gmt.com.tw
Order Number Identification
GXXXX-XX XX X
X
Packing Type
Pin Option
Package Type
Voltage
Part Number
PACKAGE TYPE
T3: TO-220
T5: TO-263
3:
PIN OPTION
1
GND
2
V
OUT
3
V
IN
PACKING
U: Tape & Reel
T: Tube
Package Type
Typical Application
[Note 4]: Type of C
OUT
G1085-XX
V
IN
V
IN
GND
C1
220µF
C
OUT
220µF
V
OUT
I
O
V
OUT
Top View
Top View
1
2
3
1
2
3
TO-220
TO-263
Ver: 0.6
Nov 24, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
1
Analog electronics
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