ISSUED DATE :2005/03/16
REVISED DATE :
GQ2133
Description
C M O S P o s i t i v e Vo l t a g e R e g u l a t o r
The GQ2133 series of positive, linear regulators feature low quiescent current (30 A typ.) with low dropout
voltage, making them ideal for battery applications.
These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under
the “Worst” of operating conditions.
An additional feature is a “Power Good” detector, which pulls low when the output is out of regulation.
The GQ2133 is stable with an output capacitance of 2.2 F or greater.
Features
&
Low Dropout Voltage
Very
Functional Block Diagram
Applications
&
Battery Powered Widgets
&Instrumentation
&Wireless Devices
&PC Peripherals
&Portable Electronics
&Cordless Phones
&
Electronic Scales
&Guaranteed 300mA output
&Over-Temperature Shutdown
&Current Limiting
&Short Circuit Current Fold-back
&Highly Accurate± 1.5%
&Power Good Output Function
&Power-saving Shutdown Mode
&Factor Pre-set Output Voltage
Note: If output voltage specification is lower than
1.215V, Vref will be trimmed to 1.2V
Package Dimensions
REF.
A
B
C
D
E
F
Millimeter
Min.
Max.
2.70
3.10
2.60
3.00
1.40
1.80
0.30
0.55
0
0.10
0°
10°
REF.
G
H
I
J
K
L
Dimensions
Millimeter
1.90 REF.
1.20 REF.
0.12 REF.
0.37 REF.
0.60 REF.
0.95 REF.
Typical Application Circuit
1/7
ISSUED DATE :2005/03/16
REVISED DATE :
Absolute Maximum Ratings
Parameter
Input
Max Voltage
Output Current
Output Voltage
Operating Ambient Temperature
Junction Temperature
Maximum Junction Temperature
Thermal Resistance
Power Dissipation( T=100 : )
EDS Classification
Symbol
V
IN
I
OUT
V
OUT
Topr
Tj
Tj
Max
ja
PD
Ratings
8
P
D
/( V
IN-
V
O)
1.2~3.8
-40 ~ +85
-40 ~ +125
150
260
380
B
Unit
V
mA
V
:
:
/W
mW
Electrical Characteristics Ta=25
Parameter
Output Voltage
Output Current
Current Limit
Load Regulation
Dropout Voltage
Quiescent Current
Ground Pin Current
Line Regulation
Input
Voltage
Over Temperature Shutdown
Over Temperature Hysterisis
Vo Temperature Coefficient
unless otherwise noted
Condition
V
IN
=V
OUT
(T)+2V,
I
O
=1mA
Symbol
V
OUT
(E)
(Note1)
Min
-1.5%
TYP
V
OUT
(T)
(Note2)
Max
1.5%
-
-
1
1300
400
300
50
-
0.2
0.15
0.1
0.4
7
-
-
-
300
-
-
-
-
V
IN
0.4
0.1
0.5
1
0.4
85
75
-
-
1.0
7.0
0.4
Unit
V
mA
mA
%
mV
A
A
%
V
:
:
ppm/ :
mA
dB
Vrms
V
V
A
A
A
V
% V
OUT
(T)
% V
OUT
(T)
I
O
I
LIM
REG
LOAD
V
DROPOUT
I
Q
I
GND
REG
LINE
V
IN
OTS
OTH
TC
Short Circuit Current
(Note4)
Power Supply Rejection
Output Voltage Noise
EN
Input
Threshold
EN
Input
Bias Current
Shutdown Supply Current
Shutdown Output Voltage
Output Under Voltage
Output Over Voltage
PG Leakage Current
PG Voltage Rating
PG Voltage Low
I
SC
PSRR
eN
V
EH
V
EL
I
EH
I
EL
I
SD
V
O,SD
V
UV
V
OV
I
LC
V
PG
V
OL
V
IN
=V
OUT
(T)+2V, V
OUT
V
OUT
(E)*0.96
300
V
IN
=V
OUT
(T)+2V, V
O
>1.2V
300
-1
V
IN
=V
OUT
(T)+2V,
I
O
=1mA to 300mA
1.2V V
OUT
(T) 2.0V
-
I
O
=300mA
V
O
=V
OUT
(E)-2% 2.0V<V
OUT
(T) 2.8V
-
-
2.8V<V
OUT
(T)
V
IN
= V
OUT
(T)+1V,
I
O
=0mA
-
V
IN
= V
OUT
(T)+2V,
I
O
=1mA~300mA
-
1.2V V
OUT
(T) 1.4V -0.2
I
O
=1mA
V
IN
=V
OUT
(T)+1 to 1.4V<V
OUT
(T) 2.0V -0.15
V
OUT
(T)+2
2.0V<V
OUT
(T)<4 ` ˆ Ø -0.1
-0.4
4.0V V
OUT
(T)
Note3
-
-
-
V
IN
=V
OUT
(T)+1V, V
OUT
<0.8V
-
f=100Hz
-
Io=100mA
f=1kHz
-
Co=2.2 F
f=10kHz
-
f=10Hz~100kHz
Co=2.2 f
-
Io=10mA
V
IN
=2.7V to 7V
2.0
V
IN
=2.7V to 7V
0
V
EN
=V
IN
, V
IN
=2.7V to 7V
-
V
EN
= 0V, V
IN
=2.7V to 7V
-
V
IN
=5V, V
O
=0V, V
EN
<V
EL
-
Io=0.4mA,
V
EN
<V
EL
0
2.5V V
OUT
(T) 5.0V
-
1.2V V
OUT
(T)<2.5V
-
2.5V V
OUT
(T) 5.0V
115
1.2V V
OUT
(T)<2.5V
125
V
PG
=7V
-
V
O
in regulation
-
-
-
450
0.2
-
-
-
30
35
-
-
0.02
0.2
-
150
30
30
150
60
50
20
30
-
-
-
-
0.5
-
-
-
-
-
-
-
-
A
V
V
I
SINK
=0.4mA
Note 1: V
OUT
(E) =Effective Output Voltage (i.e. the output voltage when “V
OUT
(T) + 2.0V” is provided at the V
IN
pin while maintaining a
certain I
OUT
value).
2: V
OUT
(T) =Specified Output Voltage
3: V
IN
(MIN)
=V
OUT
+V
DROPOUT
4: To prevent the Short Circuit Current protection feature from being prematurely activated, the input voltage must be applied before
a current source load is applied.
2/7
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