G3U1086 Datasheet, PDF (2/4 Pages) GTM CORPORATION – 1.5A Low Dropout Positive Adjustable or Fixed-Mode Regulator

ISSUED DATE :2005/07/27
REVISED DATE :2006/06/01B
Pin Descriptions
Name
I/O
Adj (GND)
Vout
O
Vin
I
Pin#
1
2
3
Function
Adjustable (Ground only for fixed mode)
The output of the regulator. A minimum of 10uF capacitor must be connected from this pin to
ground to insure stability.
The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground
to insure that the input voltage does not sag below the minimum dropout voltage during the load
transient response. This pin must always be 1.4V higher than Vout in order for the device to
regulate properly.
Absolute Maximum Ratings
Symbol
Parameter
Vin
DC Supply Voltage
PD
Power Dissipation
TST Storage Temperature
TOP Operating Junction Temperature Range
Ratings
Unit
-0.3 to 12
V
Internally Limited
-65 ~ + 150
ć
0 ~ + 150
ć
Electrical Characteristics
Parameter
Reference Voltage G3U1086ADJ
Conditions
Io=10mA, TJ =25к, (Vin-Vout )=1.5V
Output Voltage
G3U1086-1.5
G3U1086-1.8
G3U1086-2.5
Io=10mA, TJ =25к, 3.0V Vin 12V
Io=10mA, TJ =25к, 3.3V Vin 12V
Io=10mA, TJ =25к, 4.0V Vin 12V
G3U1086-3.3
Io=10mA, TJ =25к, 4.8V Vin 12V
G3U1086-5.0
Io=10mA, TJ =25к, 6.5V Vin 12V
Line Regulator
G3U1086-XXX
Io=10mA, Vout+1.5<Vin<12
Load Regulation
G3U1086ADJ
G3U1086-1.5
G3U1086-1.8
G3U1086-2.5
Vin=3.3V, 0mA<Io<1.5A, TJ=25к(Note 1,2)
Vin=3.0V, 0mA<Io<1.5A, TJ=25к(Note 1,2)
Vin=3.3V, 0mA<Io<1.5A, TJ =25к(Note 1,2)
Vin=4.0V, 0mA<Io<1.5A, TJ=25к(Note 1,2)
G3U1086-3.3
Vin=5.0V, 0mA<Io<1.5A, TJ=25к(Note 1,2)
G3U1086-5.0
Vin=8.0V, 0mA<Io<1.5A, TJ=25к(Note 1,2)
Dropout Voltage
(Vin-Vout)
G3U1086-XXX
Io=1.5A( Vout=1% Vout)
Current Limit
G3U1086-XXX
Vin-Vout=5V
Minimum Load Current Adjustable model
Vin=5V
Adjust Pin Current
Adjustable model
Vin=12V, Io=10mA
Quiescent Current
fixed model
Vin=12V, Io=0mA
Thermal Regulation
TA=25к, 30ms pulse
Ripple Rejection
F=120Hz, COUT=25uF, Tantalum, Io=1.5A
G3U1086-XXX
Vin=Vout+3V
Temperature Stability Io=10mA
Thermal Resistance
Junction-to-Ambient
(No heat sink ;No air flow)
MIN
1.225
1.470
1.764
2.450
3.235
4.900
-
-
-
-
-
-
-
-
1.6
-
-
-
-
-
-
-
TYP
1.250
1.500
1.800
2.500
3.300
5.000
-
-
12
15
20
26
40
1.3
-
5
55
-
0.008
60
0.5
83
MAX
1.275
1.530
1.836
2.550
3.365
5.100
0.2
1
15
18
25
33
50
1.4
-
10
100
12
0.04
70
-
-
UNIT
V
V
V
V
V
V
%
%
mV
mV
mV
mV
mV
V
A
mA
uA
mA
%/W
dB
%
к/W
Thermal Resistance
Junction-to-Case
Control Circuitry/Power Transistor
-
0.65/2.7
-
к/W
Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured
at a constant junction Temperature by low duty cycle pulse testing. Load regulation is measured at the output lead =1/18” from the
package.
Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the
difference in input and output and the output current. Guaranteed maximum power dissipation will not be available over the full
input/output range.
G3U1086
Page: 2/4