GM6251
ULTRA - LOW DROPOUT POSITIVE VOLTAGE REGULATOR
Power Management
Description
The GM6251's combine high accuracy with very low power
consumption, providing high output current even when the
application requires extremely low input-output voltage dif-
ferential.
The GM6251's include a precision voltage reference, an er-
ror correction circuit, over-temperature protection, and a
current limited output driver. Fast transient response to
load variations provides excellent stability under dynamic
load conditions.
The GM6251's come in SOT-25 (150mW), SOT-89
(500mW) and TO-92 packages.
Features
Maximum output current 250mA (within
maximum power dissipation)
Output voltage: from 1.8 V to 6.0V in 0.1V
increments
Output voltage ±2%
CMOS low power consumption, typically
1.0µA at V
OUT
= 5.0V
Input stability typically 0.2%/ V
Ultra-low dropout voltage 0.38V @ I
OUT
=
200mA at V
OUT
= 5.0V
Small input/ output differential:
0.4V at 160mA (V
OUT
= 3.3V)
SOT-25 (150mW), SOT-89 (500mW) and
TO-92 packages
Application
Palmtops
Portable Cameras
Video Recorders
Battery Powered Equipment
Reference Voltage Sources
V
IN
V
IN
GM6251
V
OUT
V
SS
C
L
1µF
(Tantalum)
1µF
(Tantalum)
www.gammamicro.com
PRELIMINARY
GM6251
1
+
C
+
IN
R
L
Revision 1, Jun. 2004
TYPICAL APPLICATION CIRCUITS
GM6251
MARKING INFORMATION & PIN CONFIGURATIONS
(TOP VIEW)
SOT-25(SOT-23-5)
TO-92
SOT-89
V
OUT
5
NC
4
6251
VV
AYWW
1. V
OUT
2. V
SS
3. V
IN
1
2 3
XXVYW
1
2
3
GM6251
VVAYWW
1
2
3
V
IN
V
SS
NC
V
OUT
V
SS
V
IN
XX = Specific Device Code
(FA = GM6251)
V
= Voltage Code
VV
= Voltage Suffix (18=1.8V ,50=5.0V)
A
= Assembly Location
Y
= Year
WW, W= Work Week
ORDERING INFORMATION
Ordering Number
GM6251-1.8T92B
GM6251-1.8T92RL
GM6251-1.8ST25R
GM6251-1.8ST89R
GM6251-2.5T92B
GM6251-2.5T92RL
GM6251-2.5ST25R
GM6251-2.5ST89R
GM6251-2.7T92B
GM6251-2.7T92RL
GM6251-2.7ST25R
GM6251-2.7ST89R
GM6251-2.8T92B
GM6251-2.8T92RL
GM6251-2.8ST25R
Output Voltage
1.8V
1.8V
1.8V
1.8V
2.5V
2.5V
2.5V
2.5V
2.7V
2.7V
2.7V
2.7V
2.8V
2.8V
2.8V
2.8V
3.0V
3.0V
3.0V
3.0V
Voltage Code
Package
TO-92
TO-92
Shipping
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
E
SOT-25
SOT-89
TO-92
TO-92
G
SOT-25
SOT-89
TO-92
TO-92
T
SOT-25
SOT-89
TO-92
TO-92
H
SOT-25
SOT-89
TO-92
TO-92
GM6251
GM6251-2.8ST89R
GM6251-3.0T92B
GM6251-3.0T92RL
GM6251-3.0ST25R
GM6251-3.0ST89R
J
SOT-25
SOT-89
2
* For detail Ordering Number identification, please see last page.
GM6251
ORDERING INFORMATION
(Continued)
Ordering Number
GM6251-3.2T92B
GM6251-3.2T92RL
GM6251-3.2ST25R
GM6251-3.2ST89R
GM6251-3.3T92B
GM6251-3.3T92RL
GM6251-3.3ST25R
GM6251-3.3ST89R
GM6251-3.5T92B
GM6251-3.5T92RL
GM6251-3.5ST25R
GM6251-3.5ST89R
GM6251-3.6T92B
GM6251-3.6T92RL
GM6251-3.6ST25R
GM6251-3.6ST89R
GM6251-4.0T92B
GM6251-4.0T92RL
GM6251-4.0ST25R
GM6251-4.0ST89R
GM6251-4.4T92B
GM6251-4.4T92RL
GM6251-4.4ST25R
GM6251-4.4ST89R
GM6251-4.5T92B
GM6251-4.5T92RL
GM6251-4.5ST25R
GM6251-4.5ST89R
GM6251-5.0T92B
GM6251-5.0T92RL
GM6251-5.0ST25R
GM6251-5.0ST89R
Output Voltage
3.2V
3.2V
3.2V
3.2V
3.3V
3.3V
3.3V
3.3V
3.5V
3.5V
3.5V
3.5V
3.6V
3.6V
3.6V
3.6V
4.0V
4.0V
4.0V
4.0V
4.4V
4.4V
4.4V
4.4V
4.5V
4.5V
4.5V
4.5V
5.0V
5.0V
5.0V
5.0V
Voltage Code
Package
TO-92
TO-92
Shipping
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
3,000 Units/ Tape and Reel
1,000 Units/ Tape and Reel
1,000 Units/ ESD Bag
2,000 Units/ Ammo Pack (Tape)
U
SOT-25
SOT-89
TO-92
TO-92
K
SOT-25
SOT-89
TO-92
TO-92
V
SOT-25
SOT-89
TO-92
TO-92
L
SOT-25
SOT-89
TO-92
TO-92
M
SOT-25
SOT-89
TO-92
TO-92
W
SOT-25
SOT-89
TO-92
TO-92
N
SOT-25
SOT-89
TO-92
TO-92
Q
SOT-25
SOT-89
1,000 Units/ Tape and Reel
* For detail Ordering Number identification, please see last page.
GM6251
3
3,000 Units/ Tape and Reel
GM6251
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage
Output Voltage
Output Current
Continuous Total Power
Dissipation (
SOT - 89)
Operating Ambient Temperature
Storage Temperature
SYMBOL
V
IN
V
OUT
I
OUT
P
D
T
opr
T
stg
RATINGS
12
V
SS
- 0.3 ~ V
IN
+ 0.3
500
500
-30 ~ +80
-40 ~ +125
UNITS
V
V
mA
mW
°C
°C
BLOCK DIAGRAM
V
IN
V
OUT
Current Limiter
+
-
Voltage
Reference
V
SS
GM6251
4
GM6251
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise noted)
Parameter
GM6251-1.8V
GM6251-2.5V
GM6251-2.7V
GM6251-2.8V
GM6251-3.0V
GM6251-3.2V
Output Voltage
GM6251-3.3V
GM6251-3.5V
GM6251-3.6V
GM6251-4.0V
GM6251-4.4V
GM6251-4.5V
GM6251-5.0V
GM6251-1.8V
GM6251-2.5V
GM6251-2.7V
GM6251-2.8V
GM6251-3.0V
GM6251-3.2V
Maximum Output Current
GM6251-3.3V
GM6251-3.5V
GM6251-3.6V
GM6251-4.0V
GM6251-4.4V
GM6251-4.5V
GM6251-5.0V
I
OUT
max
V
IN
=3.0V, V
OUT
(E)
V
IN
=4.0V, V
OUT
(E)
V
IN
=4.0V, V
OUT
(E)
V
IN
=4.0V, V
OUT
(E)
V
IN
=4.0V, V
OUT
(E)
V
IN
=4.0V, V
OUT
(E)
V
IN
=4.0V, V
OUT
(E)
V
IN
=5.0V, V
OUT
(E)
V
IN
=5.0V, V
OUT
(E)
V
IN
=5.0V, V
OUT
(E)
V
IN
=6.0V, V
OUT
(E)
V
IN
=6.0V, V
OUT
(E)
V
IN
=6.0V, V
OUT
(E)
1.62V
2.3V
2.43V
2.52V
2.7V
2.88V
2.97V
3.15V
3.24V
3.6V
3.96V
4.05V
4.5V
Symbol
Condition
Min
Typ
Max
Unit Circuit
1.764 1.800 1.836
2.450 2.500 2.550
2.646 2.700 2.754
2.744 2.800 2.856
2.940 3.000 3.060
3.136 3.200 3.264
V
OUT
(E)
(Note 2)
I
OUT
=40mA,
V
IN
>V
Drop
+V
OUT
3.234 3.300 3.366
3.430 3.500 3.570
3.528 3.600 3.672
3.920 4.000 4.080
4.312 4.400 4.488
4.410 4.500 4.590
4.900 5.000 5.100
V
1
250
mA
1
GM6251
5
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