GM6251
300mA ULTRA LOW DROPOUT
POSITIVE VOLTAGE REGULATOR
Description
GM6251 combines high accuracy with very low
power consumption, and provides high output
current even when the application requires
extremely low input-output voltage dropout.
GM6251 includes a precision voltage reference,
an error correction circuit, over-temperature
protection, and a current limited output driver.
Fast transient response to load variations
provides excellent stability under dynamic loads.
GM6251 comes in SOT-25 (150mW), TO92 and
SOT-89 (500mW).
Features
Maximum output current up 300mA
Output voltage from 1.5V to 5.0V in
0.1V increments
Output voltage accuracy : ±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
= 200mV at V
OUT
= 5.0V
SOT-25 (150mW), SOT-89 (500mW) and
TO-92 packages
Application
Palmtops
Portable Cameras
Video Recorders
Battery Powered Equipment
Reference Voltage Sources
Typical Application Circuits
GM6251-x.x
V
IN
V
IN
V
SS
V
OUT
R
L
C
IN
1µF
(Tantalum)
1µF
C
OUT
(Tantalum)
www.gammamicro.com.tw
1
1
GM6251
V1.00
GM6251
300mA ULTR LOW DROPOUT
POSITIVE VOLTAGE REGULATOR
Marking Information and Pin Configurations (Top View)
SOT25
TO92
SOT89
V
OUT
5
NC
4
FAVYW
1
2
3
V
IN
V
SS
NC
6251
VV
AYWW
GM6251
VVAYWW
2
V
OUT
V
SS
1
3
V
IN
1 2 3
V
OUT
V
SS
V
IN
V: Voltage Code (see next page)
VV: Voltage suffix (18 = 1.8V, 50 = 5.0V…)
Y: Year
W: Week code
WW: Week
GM6251
V1.00
2
2
GM6251
300mA ULTRA LOW DROPOUT
POSITIVE VOLTAGE REGULATOR
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
GM6251-2.8ST89R
GM6251-3.0T92B
GM6251-3.0T92RL
GM6251-3.0ST25R
GM6251-3.0ST89R
3.0V
2.8V
2.7V
2.5V
1.8V
Output Voltage
Voltage Code
Package
TO-92
TO-92
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
J
SOT-25
SOT-89
Shipping
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
3
3
GM6251
V1.00
GM6251
300mA ULTR LOW DROPOUT
POSITIVE VOLTAGE REGULATOR
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
4.5V
4.4V
4.0V
3.6V
3.5V
3.3V
3.2V
Output Voltage
Voltage Code
Package
TO-92
TO-92
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
5.0V
TO-92
Q
SOT-25
SOT-89
Shipping
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
1,000 Units/Bag
2,000 Units/Ammo Pack (Tape)
3,000 Units/Tape and Reel
1,000 Units/Tape and Reel
GM6251
V1.00
4
4
GM6251-4.5ST89R
GM6251-5.0T92B
GM6251-5.0T92RL
GM6251-5.0ST25R
GM6251-5.0ST89R
GM6251
300mA ULTRA LOW DROPOUT
POSITIVE VOLTAGE REGULATOR
Absolute Maximum Ratings
PARAMETER
Input Voltage
Output Current
Output Voltage
SOT-25
Continuous Total Power
Dissipation
Operating Ambient Temperature
Storage Temperature
SOT-89
TO-92
T
A
T
stg
P
D
SYMBOL
V
IN
I
OUT
V
OUT
RATINGS
12
500
V
SS
– 0.3 to V
IN
+0.3
150
500
300
- 40 to 125
- 65 to 150
℃
℃
mW
UNITS
V
mA
V
Block Diagram
V
IN
V
OUT
Current
Limit
Voltage
Reference
V
SS
5
5
GM6251
V1.00
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