ISSUED DATE :2004/12/22
REVISED DATE :
G2123
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 G2123 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.
The G2123 is stable with an output capacitance of 2.2 F or greater.
Features
&
Low Dropout Voltage
Very
Block Diagram
Applications
&
Battery Powered Widgets
&Instrumentation
&Wireless Devices
&Cordless Phones
&PC Peripherals
&Portable Electronics
&Electronic Scales
D
&Guaranteed 300mA output
&Over-Temperature Shutdown
&Current Limiting
&Short Circuit Current Fold-back
&Factory Pre-set Output Voltage
&Highly Accurate± 1.5%
&
Temperature Coefficient
‡
Package Dimensions
TO-92
E
S1
A
b1
SEATING
PLANE
REF.
A
S
1
b
b
1
C
e1
e
b
C
Millimeter
Min.
Max.
4.45
4.7
1.02
-
0.36
0.51
0.36
0.76
0.36
0.51
REF.
D
E
L
e1
e
Millimeter
Min.
Max.
4.44
4.7
3.30
3.81
12.70
-
1.150
1.390
2.42
2.66
Typical Application Circuit
L
1/5
ISSUED DATE :2004/12/22
REVISED DATE :
Absolute Maximum Ratings
Parameter
Input 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
jc
ja
PD
Ratings
8
PD/(V
IN
-V
O
)
1.3~3.8
-40 ~ +85
-40 ~ +125
150
80
180
625
B
Unit
V
mA
V
: /W
: /W
mW
Electrical Characteristics Ta=25
Parameter
Output Voltage
Output Current
Current Limit
Load Regulation
Dropout Voltage
Quiescent Current
Line Regulation
Symbol
V
OUT
(E)
(Note1)
Condition
V
IN
=V
OUT
(T)+1V, I
O
=1mA
V
IN
=V
OUT
(T)+2V, V
OUT
V
OUT
(E)*0.96
V
O
>1.2V
V
IN
=V
OUT
(T)+2V, I
O
=1mA to 300mA
1.3V 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
=1mA
V
IN
=V
OUT
(T)+1
to
V
OUT
(T)+2
1.3V V
OUT
(T)
1.4V<V
OUT
(T)
1.4V
2.0V
Min
-1.5%
300
300
-1
-
-
-
-
-0.2
-0.15
-0.4
Note3
-
-
-
TYP
V
OUT
(T)
(Note2)
Max
1.5%
-
-
1
1300
400
300
50
0.2
0.15
0.1
0.4
7
-
-
-
300
-
-
-
-
Unit
V
mA
mA
%
mV
A
I
O
I
LIM
REG
LOAD
V
DROPOUT
I
Q
REG
LINE
-
450
0.2
-
-
-
30
-
-
0.02
0.2
-
150
30
30
150
50
20
15
30
2.0V<V
OUT
(T)<4 ` ˆ Ø -0.1
4.0V V
OUT
(T)
%
Input Voltage
Over Temperature Shutdown
Over Temperature Hysterisis
VIN
OTS
OTH
TC
I
SC
PSRR
eN
V
IN
=V
OUT
(T)+1V V
OUT
=0V
Io=100mA
Co=2.2
F
f=10Hz~100kH
z Io=10mA
f=1kHz
f=10kHz
f=100kHz
Co=2.2 F
V
:
:
ppm/ :
mA
dB
Vrms
Output Voltage
Temperature Coefficient
Short Circuit Current
(Note4)
Power Supply Rejection
Output Voltage Noise
certain I
OUT
value).
-
-
-
-
-
Note 1: V
OUT
(E) =Effective Output Voltage (i.e. the output voltage when “V
OUT
(T) +1.0V” is provided at the VIN pin while maintaining a
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.
2/5
ISSUED DATE :2004/12/22
REVISED DATE :
Ordering Information ( contd.)
Part Number
G2123-15
G2123-25
G2123-2H
G2123-29
G2123-31
G2123-34
G2123-36
G2123-38
XX
XX
XX
XX
XX
XX
XX
XX
Marking
3P152
3P252
Output Voltage
1.5V
2.5V
2.85V
2.9V
3.1V
3.4V
3.6V
3.8V
Part Number
G2123-18
G2123-27
G2123-28
G2123-30
G2123-33
G2123-35
G2123-37
XX
XX
XX
XX
XX
XX
XX
Marking
3P182
3P272
3P282
3P302
3P332
3P352
3P372
Output Voltage
1.8V
2.7V
2.8V
3.0V
3.3V
3.5V
3.7V
3P2H2
3P292
3P312
3P342
3P362
3P382
Characteristics Curve
3/5
ISSUED DATE :2004/12/22
REVISED DATE :
4/5
ISSUED DATE :2004/12/22
REVISED DATE :
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM.
GTM reserves the right to make changes to its products without notice.
GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems.
GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
Head Office And Factory:
Taiwan:
No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C.
TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785
China:
(201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China
TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165
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