ISSUED DATE :2005/07/05
REVISED DATE :
Power Good
The GQ2131 includes the Power Good feature. When the output is not within D
15% of the specified voltage, it
pulls low. This can occur under the following conditions:
1) Input Voltage too low.
2) During Over-Temperature.
3) During Over-Current.
4) If output is pulled up.
(Note: PG pin is an open-drain output.)
Absolute Maximum Ratings
Parameter
Input
Max Voltage
Output Current
Input,
Output Voltage
Operating Ambient Temperature
Junction Temperature
Maximum Junction Temperature
Thermal Resistance
Power Dissipation( T=100 : )
EDS Classification
Topr
Tj
Tj
Max
ja
PD
Symbol
V
IN
I
OUT
Ratings
7
P
D
/( V
IN-
V
O)
GND-0.3 to V
IN
+0.3
-40 ~ +85
-40 ~ +125
150
260
380
B
Unit
V
mA
V
:
: /W
mW
Electrical Characteristics Ta=25
Parameter
Output Voltage
Current Limit
Load Regulation
Dropout Voltage
Quiescent Current
Ground Pin Current
Line Regulation
Input
Voltage
Over Temperature Shutdown
Over Temperature Hysterisis
V
IN
=2.7V, V
EN
= V
IN
,
O
=100uA
unless otherwise noted
Min
-3.0%
150
-4
-
-
-
-0.3
2.7
-
-
-
Symbol
V
O
I
LIM
REG
LOAD
V
DROPOUT
I
Q
I
GND
REG
LINE
V
IN
OTS
OTH
TC
PSRR
eN
V
EH
V
EL
I
EH
I
EL
I
SD
V
O,SD
V
UV
I
LC
V
OL
T
PGD
Condition
I
O
=0.1mA
V
O
<0.1V
I
O
=0.1mA to 150mA
I
O
=150mA, V
OUT
=V
O
-2%
V
IN
=6V,
I
O
=0mA, V
O
=V
O(NOM)
V
IN
=6V,
I
O
=1mA to150mA
I
O
=0.1mA, V
IN
=2.7V to 6V
TYP
-
Max
3.0%
-
4
1300
80
-
0.3
6
-
-
-
-
-
-
-
V
IN
0.4
-
-
1
0.4
95
-
0.1
5
Unit
V
mA
%
mV
A
A
%
V
:
:
ppm/ :
dB
Vrms
V
V
A
A
A
V
%Vo
(NOM)
A
V
ms
350
1
-
60
65
-
-
150
30
30
50
20
15
30
-
-
0.1
0.1
0.5
-
-
0.1
-
-
Output Voltage
Temperature Coefficient
Power Supply Rejection
Output Voltage Noise
EN
Input
Threshold
EN
Input
Bias Current
Shutdown Supply Current
Shutdown Output Voltage
Output Under Voltage
PG Leakage Current
PG Voltage Low
V
PG
Delay
Note 1: V
IN
(MIN)
=V
OUT
+V
DROPOUT
Io=100mA
Co=2.2 F
f=10Hz to 100kHz
Io=10mA
f=1kHz
f=10kHz
f=100kHz
Co=2.2 F
-
-
-
-
1.6
0
-
-
-
0
-
-
-
1.5
V
EN
=V
IN
V
EN
= 0V
V
IN
=5V, V
O
=0V, V
EN
=0V
Output Loading 1200 , V
EN
=0V
PG ON @ % of V
OUT
V
PG
=6V, PG is off
I
SINK
=0.1mA
See Timing Diagram on page 5
3/5
GTM [ GTM CORPORATION ]
