Ver: 1.1
Aug 04, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G915
Global Mixed-mode Technology Inc.
1.5V 600mA Low Dropout Regulator
Features
Wide Input Voltage Range 2.9V~6V
Output Current in Excess of 600mA
Output Voltage Accuracy
2%
Quiescent Current, Typically 0.3mA
Internal Short Circuit Current Limit
Internal Over Temperature Protection
General Description
The G915 positive 1.5V voltage regulator features the
ability to source 600mA of output current. A low qui-
escent current is provided. The typical quiescent cur-
rent is 0.3mA.
Familiar regulator features such as over temperature
and current limit protection circuits are provided to pre-
vent it from being damaged by abnormal operating
conditions.
Ordering Information
PIN OPTION
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
1 2 3
G915T24U
915x -40C
~85C SOT89
GND
V
IN
V
OUT
* For other package types, pin options and package, please contact us at sales
@
gmt.com.tw
Order Number Identification
GXXX XX X X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE
PIN OPTION
PACKING
T2 : SOT89
1
2
3
U : Tape & Reel
1 : V
OUT
GND V
IN
B : Bag
2 : V
OUT
V
IN
GND
3 : GND
V
OUT
V
IN
4 : GND
V
IN
V
OUT
5 : V
IN
GND
V
OUT
6 : V
IN
V
OUT
GND
Typical Application Package Type
[Note 4]: Type of C
OUT
Top View
1
2
3
Top View
Top View
1
2
3
SOT89
V
IN
G915
C1
1F
IQ
V
OUT
I
O
C
OUT
10F
Top View
Top View
1
2
3
Top View
Top View
1
2
3
SOT89
V
IN
G915
C1
1F
IQ
V
OUT
I
O
C
OUT
10F
Ver: 1.1
Aug 04, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G915
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage...................................................7V
Power Dissipation Internally Limited (Note2)
Maximum Junction Temperature.........................150C
Storage Temperature Range.........-65C
T
J
+150C
Reflow Temperature (soldering, 10sec)............260C
Continuous Power Dissipation (T
A
= + 25C)
SOT89
(1)
...............................................................0.5W
Thermal Resistance Junction to Case
SOT89......................................................55C/W
Note
(1)
: See Recommended Minimum Footprint.
Operating Conditions
(Note 1)
Input Voltage..................................................2.9V ~ 6V
Temperature Range...........................-40C
T
A
85C
Electrical Characteristics
V
IN
=2.5V, I
O
=500mA, C
IN
=10F, C
OUT
=10F. All specifications apply for T
A
=T
J
=25C. [Note 3]
PARAMETER CONDITION
MIN
TYP
MAX UNIT
Input Voltage
2.9 --- 6 V
Output Voltage
5mA < I
O
< 600mA
--- 1.5 --- V
Line Regulation
4V < V
IN
< 6V, I
O
= 10mA
--- 10 --- mV
Load Regulation
10mA < I
O
< 600mA
---
10
---
mV
Quiescent Current
V
IN
= 5V
---
0.3
---
mA
Ripple Rejection
f
i
= 120 Hz, 1V
P-P
, I
O
= 100mA
---
50
---
dB
Short Circuit Current
---
0.65
---
A
Current Limit
---
0.8
---
A
Over Temperature
---
145
---
C
Over Temperature Hysterics
---
25
---
C
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions
are conditions under which the device functions but the specifications might not be guaranteed. For guaran-
teed specifications and test conditions see the Electrical Characteristics.
Note 2: The maximum power dissipation is a function of the maximum junction temperature, T
Jmax
; total thermal re-
sistance,
JA
, and ambient temperature T
A
. The maximum allowable power dissipation at any ambient tem-
perature is T
jmax
-T
A
/
JA
. If this dissipation is exceeded, the die temperature will rise above 150C and IC will
go into thermal shutdown. For the G915 in the SOT89 package is 250C/W (See Recommended Minimum
Footprint). The safe operation in SOT 89 package, it can see "Typical Performance Characteristics" (Safe
Operating Area).
Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as pos-
sible.
Note4: The type of output capacitor should be tantalum, aluminum or ceramic.
Definitions
Dropout Voltage
The input/output Voltage differential at which the regu-
lator output no longer maintains regulation against
further reductions in input voltage. Measured when the
output drops 100mV below its nominal value, dropout
voltage is affected by junction temperature, load cur-
rent and minimum input supply requirements.
Line Regulation
The change in output voltage for a change in input volt-
age. The measurement is made under conditions of low
dissipation or by using pulse techniques such that av-
erage chip temperature is not significantly affected.
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measure-
ment is made under conditions of low dissipation or by
using pulse techniques such that average chip tem-
perature is not significantly affected.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
Ver: 1.1
Aug 04, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
4
G915
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(continued)
0
100
200
300
400
-25 -15 -5
5
15 25 35 45 55 65 75 85
Temperature (C)
Qu
ie
sc
en
t Cu
rre
nt
(
A)
V
IN
=4V
V
IN
=5V
600
700
800
900
1000
1100
1200
1300
1400
1500
100
200
300
400
500
600
I
L
(mA)
D
r
opo
ut
V
o
l
t
ag
e (
m
V
)
T
A
=85C
1.47
1.48
1.49
1.5
1.51
1.52
1.53
-25
-5
15
35
55
75
Temperature (C)
O
u
t
put
V
o
lta
ge (
V
)
V
IN
=3V
V
IN
=4V
V
IN
=5V
I
L
=10mA
1.5
1.502
1.504
1.506
1.508
1.51
1.512
1.514
2.5
3
3.5
4
4.5
5
5.5
6
V
IN
(V)
Ou
tp
ut
Vo
lta
g
e
(
V
)
I
L
=10mA
SOT89 Max. Power Dissipation
vs. PCB Top Copper Area
T
AMB
= 25C ; Still Air
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0
1
2
3
4
5
PCB Top Copper Area (in
2
)
M
a
x.
Di
ss
ip
at
io
n
Pow
e
r
(W
)
0.5
0.7
0.9
1.1
1.3
1.5
1.7
25
35
45
55
65
75
85
T
AMB
(C)
M
a
x
.
Di
ss
ip
a
t
io
n
Po
wer
(W
)
A=0.1
A=0.2
A=0.3
A=0.4
A=0.5
A=1.0
A=1.5
A=2.0
A=2.5
A=3.0
A=3.5
A=4.0
A=4.5
A=5.0
SOT89 Max. Power Dissipation
vs. T
AMB
(still air)
( Different PCB Top Copper Area )
Quiescent Current vs. Temperature
T
A
=25C
T
A
=-25C
Dropout Voltage vs. I
L
Output Voltage vs. Temperature
Output Voltage vs. V
IN
T
A
=85C
T
A
=25C
T
A
=-25C
Unit : in
2
Recommend Minimum Footprint
Ver: 1.1
Aug 04, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
5
G915
Global Mixed-mode Technology Inc.
Package Information
SOT89 (T2) Package
DIMENSIONS IN MILLIMETER
DIMENSIONS IN INCH
SYMBOL
MIN NOM MAX MIN NOM MAX
A 1.40
1.50
1.60
0.055
0.059
0.063
A1 0.80 1.04 ----- 0.031 0.041 -----
b 0.36
0.42
0.48
0.014
0.016
0.018
b1 0.41 0.47 0.53
0.016
0.018
0.020
C 038
0.40
0.43
0.014
0.015
0.017
D 4.40
4.50
4.60
0.173
0.177
0.181
D1 1.40 1.60 1.75
0.055
0.062
0.069
HE ----- ----- 4.25 ----- ----- 0.167
E 2.40
2.50
2.60
0.094
0.098
0.102
e 2.90
3.00
3.10
0.114
0.118
0.122
Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
Feed Direction
SOT89 Package Orientation
Feed Direction
SOT89 Package Orientation
D
D1
E
A1
HE
e
b
b
b1
A
POLISH
MATTE FINISH
C
POLISH
D
D1
E
A1
HE
e
b
b
b1
A
POLISH
MATTE FINISH
C
POLISH
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