Features
Description
GM6250 combine high accuracy with very low power con-
Maximum output current 250mA (within
sumption, and provides high output current even when the
maximum power dissipation)
application requires extremely low input-output voltage dif-
Output voltage: from 1.8 V to 5.0V in 0.1V
ferential.
increments
GM6250 includes a precision voltage reference, an error
Output voltage ±2%
correction circuit, over-temperature protection, and a cur-
CMOS low power consumption, typically
rent limited output driver. Fast transient response to load
1.0µA at VOUT = 5.0V
variations provides excellent stability under dynamic load
conditions.
Input stability typically 0.2%/ V
GM6250 comes in SOT-23 (150mW), SOT-89 (500mW)
Ultra-low dropout voltage 0.38V @ IOUT =
and TO-92 packages.
200mA at VOUT = 5.0V
Small input/ output differential:
0.4V at 160mA (VOUT = 3.3V)
SOT-23 (150mW), SOT-89 (500mW) and
TO-92 packages
Application
Palmtops
Battery Powered Equipment
Portable Cameras
Reference Voltage Sources
Video Recorders
VIN
VIN
+C
IN
1µF
(Tantalum)
GM6250
VOUT
VSS
CL
+
RL
1µF
(Tantalum)
www.gammamicro.com
GM6250 V0.1
TYPICAL APPLICATION CIRCUITS
1
MARKING INFORMATION & PIN CONFIGURATIONS (TOP VIEW)
SOT-89
TO-92
SOT-23
6250
VV
AYWW
VIN
GM6250
VVAYWW
3
1. VSS
2. VIN
3. VOUT
XXVYW
1
2
VSS
VOUT
1
2 3
GM6250
2
Output Voltage
Voltage Code
2
VIN
3
VOUT
XX = Marking Code(EA = GM6250)
V
= Voltage Code
VV
= Voltage Suffix (18=1.8V, 50=5.0V)
A
= Assembly Location
Y
= Year
WW, W= Weekly
ORDERING INFORMATION (Continued)
Ordering Number
1
VSS
Package
Shipping
GM6250-1.5T92B
1.5V
TO-92
1,000 Units/ ESD Bag
GM6250-1.5T92RL
1.5V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-1.5ST23R
1.5V
SOT-23
3,000 Units/ Tape and Reel
GM6250-1.5ST89R
1.5V
SOT-89
1,000 Units/ Tape and Reel
GM6250-1.8T92B
1.8V
TO-92
1,000 Units/ ESD Bag
GM6250-1.8T92RL
C
1.8V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-1.8ST23R
1.8V
SOT-23
3,000 Units/ Tape and Reel
GM6250-1.8ST89R
1.8V
SOT-89
1,000 Units/ Tape and Reel
GM6250-2.5T92B
2.5V
TO-92
1,000 Units/ ESD Bag
E
TO-92
2,000 Units/ Ammo Pack (Tape)
SOT-23
3,000 Units/ Tape and Reel
2.5V
SOT-89
1,000 Units/ Tape and Reel
2.7V
TO-92
1,000 Units/ ESD Bag
GM6250-2.5T92RL
2.5V
GM6250-2.5ST23R
2.5V
GM6250-2.5ST89R
GM6250-2.7T92B
G
TO-92
2,000 Units/ Ammo Pack (Tape)
SOT-23
3,000 Units/ Tape and Reel
2.7V
SOT-89
1,000 Units/ Tape and Reel
GM6250-2.8T92B
2.8V
TO-92
1,000 Units/ ESD Bag
GM6250-2.7T92RL
2.7V
GM6250-2.7ST23R
2.7V
GM6250-2.7ST89R
T
TO-92
2,000 Units/ Ammo Pack (Tape)
SOT-23
3,000 Units/ Tape and Reel
2.8V
SOT-89
1,000 Units/ Tape and Reel
GM6250-2.85T92B
2.85V
TO-92
1,000 Units/ ESD Bag
GM6250-2.8T92RL
2.8V
GM6250-2.8ST23R
2.8V
GM6250-2.8ST89R
H
TO-92
2,000 Units/ Ammo Pack (Tape)
SOT-23
3,000 Units/ Tape and Reel
2.85V
SOT-89
1,000 Units/ Tape and Reel
GM6250-3.0T92B
3.0V
TO-92
1,000 Units/ ESD Bag
GM6250-2.85T92RL
2.85V
GM6250-2.85ST23R
2.85V
GM6250-2.85ST89R
GM6250-3.0T92RL
3.0V
GM6250-3.0ST23R
3.0V
GM6250-3.0ST89R
3.0V
I
J
* For detail Ordering Number identification, please see last page.
TO-92
2,000 Units/ Ammo Pack (Tape)
SOT-23
3,000 Units/ Tape and Reel
SOT-89
1,000 Units/ Tape and Reel
ORDERING INFORMATION (Continued)
Ordering Number
Output Voltage
Voltage Code
Package
Shipping
GM6250-3.2T92B
3.2V
TO-92
1,000 Units/ ESD Bag
GM6250-3.2T92RL
3.2V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-3.2ST23R
3.2V
SOT-23
3,000 Units/ Tape and Reel
GM6250-3.2ST89R
3.2V
SOT-89
1,000 Units/ Tape and Reel
GM6250-3.3T92B
3.3V
TO-92
1,000 Units/ ESD Bag
GM6250-3.3T92RL
3.3V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-3.3ST23R
3.3V
SOT-23
3,000 Units/ Tape and Reel
GM6250-3.3ST89R
3.3V
SOT-89
1,000 Units/ Tape and Reel
GM6250-3.5T92B
3.5V
TO-92
1,000 Units/ ESD Bag
GM6250-3.5T92RL
3.5V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-3.5ST23R
3.5V
SOT-23
3,000 Units/ Tape and Reel
GM6250-3.5ST89R
3.5V
SOT-89
1,000 Units/ Tape and Reel
GM6250-3.6T92B
3.6V
TO-92
1,000 Units/ ESD Bag
GM6250-3.6T92RL
3.6V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-3.6ST23R
3.6V
SOT-23
3,000 Units/ Tape and Reel
GM6250-3.6ST89R
3.6V
SOT-89
1,000 Units/ Tape and Reel
GM6250-4.0T92B
4.0V
TO-92
1,000 Units/ ESD Bag
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-4.0T92RL
4.0V
GM6250-4.0ST23R
4.0V
GM6250-4.0ST89R
U
K
V
L
SOT-23
3,000 Units/ Tape and Reel
4.0V
SOT-89
1,000 Units/ Tape and Reel
GM6250-4.4T92B
4.4V
TO-92
1,000 Units/ ESD Bag
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-4.4T92RL
4.4V
GM6250-4.4ST23R
4.4V
GM6250-4.4ST89R
M
SOT-23
3,000 Units/ Tape and Reel
4.4V
SOT-89
1,000 Units/ Tape and Reel
GM6250-4.5T92B
4.5V
TO-92
1,000 Units/ ESD Bag
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-4.5T92RL
4.5V
GM6250-4.5ST23R
4.5V
GM6250-4.5ST89R
W
SOT-23
3,000 Units/ Tape and Reel
4.5V
SOT-89
1,000 Units/ Tape and Reel
GM6250-5.0T92B
5.0V
TO-92
1,000 Units/ ESD Bag
GM6250-5.0T92RL
5.0V
TO-92
2,000 Units/ Ammo Pack (Tape)
GM6250-5.0ST23R
5.0V
GM6250-5.0ST89R
N
Q
5.0V
SOT-23
3,000 Units/ Tape and Reel
SOT-89
1,000 Units/ Tape and Reel
GM6250
* For detail Ordering Number identification, please see last page.
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
Input Voltage
12
V
IOUT
500
mA
VOUT
VSS - 0.3 ~ VIN + 0.3
V
VIN
Output Current
Output Voltage
150
SOT - 23
Continuous Total Power
Dissipation
UNITS
RATINGS
PD
SOT - 89
500
mW
300
TO - 92
Operating Ambient Temperature
Topr
-30 ~ +80
°C
Storage Temperature
Tstg
-40 ~ +125
°C
Thermal Information
PARAMETER
Thermal Resistance R
Thermal Resistance R
Maximum
Unit
100
°C/ W
300
°C/ W
jc
SOT-89
ja
BLOCK DIAGRAM
VIN
VOUT
Current Limiter
GM6250
+
4
Voltage
Reference
VSS
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Symbol
Min
Condition
Max
GM6250-1.5V
1.470 1.500 1.530
GM6250-1.8V
1.764 1.800 1.836
GM6250-2.5V
2.450 2.500 2.550
GM6250-2.7V
2.646 2.700 2.754
GM6250-2.8V
2.744 2.800 2.856
GM6250-3.0V
2.940 3.000 3.060
GM6250-3.3V
(Note 2)
VOUT(E)
GM6250-3.5V
IOUT=40mA,
VIN >VDrop+VOUT
3.234 3.300 3.366
3.528 3.600 3.672
GM6250-4.0V
3.920 4.000 4.080
GM6250-4.4V
4.312 4.400 4.488
GM6250-4.5V
4.410 4.500 4.590
GM6250-5.0V
4.900 5.000 5.100
GM6250-1.5V
VIN=3.0V, VOUT(E)
1.35V
GM6250-1.8V
VIN=3.0V, VOUT(E)
1.62V
GM6250-2.5V
VIN=4.0V, VOUT(E)
2.3V
GM6250-2.7V
VIN=4.0V, VOUT(E)
2.43V
GM6250-2.8V
VIN=4.0V, VOUT(E)
2.52V
GM6250-3.0V
VIN=4.0V, VOUT(E)
2.7V
GM6250-3.2V
VIN=4.0V, VOUT(E)
2.88V
VIN=4.0V, VOUT(E)
2.97V
GM6250-3.5V
VIN=5.0V, VOUT(E)
3.15V
GM6250-3.6V
VIN=5.0V, VOUT(E)
3.24V
GM6250-4.0V
VIN=5.0V, VOUT(E)
3.6V
GM6250-4.4V
VIN=6.0V, VOUT(E)
3.96V
GM6250-4.5V
VIN=6.0V, VOUT(E)
4.05V
GM6250-5.0V
VIN=6.0V, VOUT(E)
4.5V
Maximum Output Current
IOUT max
V
1
mA
1
3.430 3.500 3.570
GM6250-3.6V
GM6250-3.3V
Unit Circuit
3.136 3.200 3.264
GM6250-3.2V
Output Voltage
Typ
250
GM6250
Parameter
5
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Symbol
Parameter
Load Stability
VIN=2.5V, 1mA IOUT
60mA
45
90
VIN=2.8V, 1mA IOUT
60mA
45
90
GM6250-2.5V
VIN=3.5V, 1mA IOUT
80mA
45
90
GM6250-2.7V
VIN=3.7V, 1mA IOUT
80mA
45
90
GM6250-2.8V
VIN=3.8V, 1mA IOUT
80mA
45
90
GM6250-3.0V
VIN=4.0V, 1mA IOUT
80mA
45
90
GM6250-3.2V
VIN=4.2V, 1mA IOUT
80mA
45
90
VIN=4.3V, 1mA IOUT
100mA
45
90
GM6250-3.5V
VIN=4.5V, 1mA IOUT
100mA
45
90
GM6250-3.6V
VIN=4.6V, 1mA IOUT
100mA
45
90
GM6250-4.0V
VIN=5.0V, 1mA IOUT
100mA
40
80
GM6250-4.4V
VIN=5.4V, 1mA IOUT
100mA
40
80
GM6250-4.5V
VIN=4.5V, 1mA IOUT
100mA
40
80
VIN=6.0V, 1mA IOUT
100mA
GM6250-3.3V
GM6250-1.8V
GM6250-2.5V
GM6250-2.7V
GM6250-2.8V
GM6250-3.0V
GM6250-3.2V
GM6250-3.3V
GM6250-3.5V
GM6250-3.6V
GM6250-4.0V
GM6250-4.4V
GM6250-4.5V
GM6250-5.0V
GM6250
Max
GM6250-1.8V
GM6250-1.5V
6
Typ
GM6250-1.5V
DVOUT
GM6250-5.0V
Input - Output
(Note 3)
Voltage Differential
Min
Condition
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
Vdif1
Vdif2
IOUT = 40mA
IOUT = 160mA
IOUT = 60mA
IOUT = 160mA
IOUT = 80mA
IOUT = 160mA
IOUT = 80mA
IOUT = 160mA
IOUT = 80mA
IOUT = 160mA
IOUT = 80mA
IOUT = 160mA
IOUT = 80mA
IOUT = 160mA
IOUT = 100mA
IOUT = 200mA
IOUT = 100mA
IOUT = 200mA
IOUT = 100mA
IOUT = 200mA
IOUT = 100mA
IOUT = 200mA
IOUT = 100mA
IOUT = 200mA
IOUT = 100mA
IOUT = 200mA
IOUT = 100mA
IOUT = 200mA
40
80
180
900
180
900
180
550
180
400
180
400
180
400
180
400
170
400
120
380
120
380
170
400
120
380
120
380
120
380
360
1300
360
1300
360
850
360
700
360
700
360
700
360
700
330
630
300
600
300
600
330
630
300
600
300
600
300
600
Unit Circuit
mV
1
mV
1
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Symbol
GM6250-1.5V
VIN = 1.5V
GM6250-1.8V
VIN = 2.8V
GM6250-2.5V
VIN = 3.5V
GM6250-2.7V
VIN = 3.7V
GM6250-2.8V
VIN = 3.8V
GM6250-3.0V
VIN = 4.0V
GM6250-3.3V
ISS
VIN = 4.3V
GM6250-3.5V
VIN = 4.5V
GM6250-3.6V
VIN = 4.6V
GM6250-4.0V
VIN = 5.0V
GM6250-4.4V
VIN = 5.4V
GM6250-4.5V
VIN = 5.5V
GM6250-5.0V
VIN = 6.0V
Output Current Limit
GM6250-1.8V
GM6250-2.5V
GM6250-2.7V
GM6250-2.8V
GM6250-3.0V
GM6250-3.2V
GM6250-3.3V
DVOUT
DVIN • VOUT
GM6250-3.5V
GM6250-3.6V
GM6250-4.0V
GM6250-4.4V
GM6250-4.5V
GM6250-5.0V
Input Voltage
Output Voltage
Temperature Characteristics
Typ
Max
1.0
2.9
Unit Circuit
µA
2
mA
-
0.3
%/ V
1
10
V
-
ppm/°C
1
500
GM6250-1.5V
Input Stability
Min
VIN = 4.2V
GM6250-3.2V
Supply Current
Condition
IOUT = 40mA
2.5V VIN 10.0V
IOUT = 40mA
2.8V VIN 10.0V
IOUT = 40mA
3.5V VIN 10.0V
IOUT = 40mA
3.7V VIN 10.0V
IOUT = 40mA
3.8V VIN 10.0V
IOUT = 40mA
4.0V VIN 10.0V
IOUT = 40mA
4.2V VIN 10.0V
IOUT = 40mA
4.3V VIN 10.0V
IOUT = 40mA
4.5V VIN 10.0V
IOUT = 40mA
4.6V VIN 10.0V
IOUT = 40mA
5.0V VIN 10.0V
IOUT = 40mA
5.4V VIN 10.0V
IOUT = 40mA
5.5V VIN 10.0V
IOUT = 40mA
6.0V VIN 10.0V
0.2
VIN
DVOUT
DTopr • VOUT
IOUT = 10mA
-30°C Topr 80°C
±100
Note: 1. VOUT(T) = Specified Output Voltage
2. VOUT(E) = Effective Output Voltage (the output voltage when"VOUT(T) + 1.0V" is provided at the VIN pin while
maintaining a certain IOUT value)
3. Vdif = { VIN1 (Note 4) - VOUT (E)}
4. VIN1 = The input voltage at the time 98% of VOUT(E) is output (input voltage has been gradually reduced).
* Output Voltage from 1.8V to 6.0V in 0.1V increments ate available
GM6250
Parameter
7
DIRECTIONS FOR USAGE
Notes on Usage
1. Please use this IC within the stipulated absolute maximum ratings as the IC is liable to malfunction
outside of such parameters.
2. There is a possibility theat, oscillation may occur as a result of the impedance present between the
power supply and the IC's input. Where impedance is 10W or more, please use a capacitor (CIN)
of at least 1µF.
With a large output current, operations can be stabilised by increasing capacitor size (CIN). If CIN is
small and capacitor size (CL) is increased, there is a possibility of oscillation due to input impedance.
In such cases, operations can be stabilised by either increasing the size of CIN or decreasing the size of CL.
3. Please ensure the output current (IOUT) is less than Pd ÷ (VIN - VOUT) and does not exceed the
stipulated continuous total power dissipation value (Pd) for the package.
TEST CIRCUIT
Circuit 1
GM6250
VIN
VO
VIN
+
1µF
(Tantalum)
Circuit 2
A
+
VSS
1µF
(Tantalum)
GM6250
VIN
VO
VIN
V
RL
Open
VSS
A
GM6250
CALCULATING POWER DISSIPATION
8
The GM6250 series precision linear regulators include thermal shutdown and current limit circuitry to
protect the devices. However, high power regulators normally operate at high junction temperatures so it
is important to calculate the power dissipation and junction temperatures accurately to be sure that you
use and adequate heat sink.
The thermal characteristics of an IC depend four factors:
1. Maximum Ambient Temperature TA (°C)
2. Power Dissipation PD (Watts)
3. Maximum Junction Temperature TJ (°C)
4. Thermal Resistance Junction to ambient RQJA (°C/W)
These relationship of these four factors is expressed by equation (1): TJ
= TA + PD X RQJA
Maximum ambient temperature and power dissipation are determined by the design while the maximum
junction temperature and thermal resistance depend on the manufacturer and the package type.
PERFORMANCE CHARACTERISTICS FOR GM6250 - 3.0
1.0
Input/ Output Voltage Diff.: VDIF (V)
3.0
Topr = 25°C
2.9
2.8
2.7
0
VIN=4V
CIN=1µF
CL=1µF
20
40
60
0.6
0.4
0.2
Topr = 25°C
0.0
-0.2
80 100 120 140 160 180
CIN=1µF
CL=1µF
0.8
0
20
40
Figure 1: Output Voltage vs.
Output Current
3.05
IOUT=1mA
40mA
2.60
10mA
Topr= 25°C
CIN=1µF
CL=1µF
2.40
Output Voltage: VOUT (V)
Output Voltage: VOUT (V)
100 120 140 160 180
3.10
2.80
IOUT=1mA
3.00
40mA
3.0
10mA
2.95
Topr= 25°C
CIN=1µF
CL=1µF
2.90
2.85
2.20
2.5
3.5
3
4
5
6
7
8
9
10
Input Voltage: VIN(V)
Input Voltage: VIN(V)
Figure 3: Output Voltage vs.
Input voltage
Figure 4: Output Voltage vs.
Input voltage
3.0
2.50
Supply Current: ISS (µA)
Topr= 25°C
Supply Current: ISS (µA)
80
Figure 2: Input/ Output Voltage differential
vs. Output Current
3.20
3.00
60
Output Current: IOUT (mA)
Output Current: IOUT (mA)
2.0
1.0
2.25
Topr= 25°C
2.00
1.75
1.50
0
0
2
4
6
8
10
Input Voltage: VIN(V)
Figure 5: Supply Current vs. Input
Voltage
3
4
5
6
7
8
9
Input Voltage: VIN(V)
Figure 6: Supply Current vs.
Input Voltage
10
GM6250
Output Voltage: VOUT (V)
3.1
9
PERFORMANCE CHARACTERISTICS FOR GM6250 - 3.0
6
5.0
6
5
2
4
0
3
Output Voltage
-2
2
-4
IOUT= 1mA
CL=1µF
3
3.5
Output Voltage
3.0
2.5
1
0
4.5
4.0
4
2
1
IOUT= 1mA
CL=1µF
-6
Time (0.4msec/ div)
Time (1msec/ div)
Figure 7: Input Transient Response 1
Figure 8: Input Transient Response 2
60
Ripple Rejection Rate :RR (dB)
Input Voltage
5
Input Voltage: VIN(V)
4
Output Voltage: VOUT (V)
Input Voltage: VIN(V)
Input Voltage
VIN= 4VDC+1VP-PAC
IOUT= 40mA, CL= 1µF
50
40
30
20
10
0
0.01
0.1
1
Ripple Frequency: f (kHz)
10
Figure 9: Ripple Rejection Rate
TO-92 PACKAGE OUTLINE DIMENSIONS
4.6 ± 0.1
3.6 ± 0.15
2°
2°
4.6 ± 0.1
2.3
2°
1.45 ± 0.1
2°
3 - 0.46
GM6250
14.5 ± 0.5
10
0.38 ± 0.015
1.27 1.27
Unit: mm
3.6 ± 0.15
1.3 ± 0.1
5°
5°
Output Voltage: VOUT (V)
6
SOT-89 PACKAGE OUTLINE DIMENSIONS
4.50 ± 0.05
1.650 REF
Units: mm
Pad Layout
1.50 ± 0.05
1.400 REF
2
R 0.13~4X
NO DRAFT~2
R 0.13~3X
3
4.20 ± 0.05
2.5 ± 0.05
45°
6°
R 0.1 MAX
1.00 ± 0.07
0.7
0.46 ± 0.025
1.50
1.5
1.50
0.38 ± 0.01
3.00 ± 0.025
1.5
6°~2X
1
R 0.13~2X
R 0.13~2X
Unit: mm
6°~2X
SOT-23 PACKAGE OUTLINE DIMENSIONS
2.90 ± 0.1
0.13
0.4 ± 0.1
Pad Layout
0~0.1
0.031
0.8
1.5 ± 0.05
2.8 ± 0.1
0.035
0.9
0.079
0.65 ± 0.05
2.0
0.95 ± 0.038
5°
1.10 ± 0.1
Unit: mm
0.037
0.037
0.95
0.95
Inches
( mm )
GM6250
0.8 ± 0.05
1.9 ± 0.05
11
ORDERING NUMBER
GM 6250 1.8 T92 B
Shipping
B: ESD Bag
RL: Ammo Pack (Tape)
T: Tube
R: Tape & Reel
Gamma Micro.
Circuit Type
GM6250
Output Voltage
1.8: 1.8, 2.5: 2.5V
2.7: 2.7V, 2.8: 2.8V
3.0: 3.0V, 3.3: 3.3V,
3.6: 3.6V, 4.0: 4.0V
12
Package
T92: TO-92
ST3: SOT-23
ST89: SOT89
13
GM6250