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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 differential. 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 load conditions. GM6251 comes 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 1.0A at VOUT = 5.0V Input stability typically 0.2%/ V Ultra-low dropout voltage 0.38V @ IOUT = 200mA at VOUT = 5.0V Small input/ output differential: 0.4V at 160mA (VOUT = 3.3V) 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
VIN
+C
IN
VSS
CL
1F (Tantalum)
+
RL
1F (Tantalum)
www.gammamicro.com
GM6251 V0.1
1
VIN
GM6251 VOUT
MARKING INFORMATION & PIN CONFIGURATIONS(TOP VIEW)
SOT-25(SOT-23-5)
TO-92
SOT-89
VOUT
5
NC
4
6251 VV AYWW 1. VOUT 2. VSS 3. VIN 1 23
XXVYW
1 2 3
GM6251 VVAYWW
1 2 3
VIN
VSS
NC
VOUT VSS
VIN
XX = Marking Code(FA = GM6251) V = Voltage Code VV = Voltage Suffix (18=1.8V ,50=5.0V) A = Assembly Location Y = Year WW, W= Weekly
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
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
GM6251-3.0T92RL GM6251-3.0ST25R GM6251-3.0ST89R
J
SOT-25 SOT-89
* For detail Ordering Number identification, please see last page.
2
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) 3,000 Units/ Tape and Reel 1,000 Units/ Tape and Reel
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
* For detail Ordering Number identification, please see last page.
GM6251
3
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Input Voltage Output Voltage Output Current Continuous Total Power Dissipation (SOT - 89) Operating Ambient Temperature Storage Temperature
SYMBOL
VIN VOUT IOUT PD Topr Tstg
RATINGS
12 VSS - 0.3 ~ VIN + 0.3 500 500 -30 ~ +80 -40 ~ +125
UNITS
V V mA mW C C
BLOCK DIAGRAM
VIN
VOUT
Current Limiter + Voltage Reference VSS
GM6251
4
ELECTRICAL CHARACTERISTICS (TA = 25C 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 IOUT max
VIN=3.0V, VOUT(E) VIN=4.0V, VOUT(E) VIN=4.0V, VOUT(E) VIN=4.0V, VOUT(E) VIN=4.0V, VOUT(E) VIN=4.0V, VOUT(E) VIN=4.0V, VOUT(E) VIN=5.0V, VOUT(E) VIN=5.0V, VOUT(E) VIN=5.0V, VOUT(E) VIN=6.0V, VOUT(E) VIN=6.0V, VOUT(E) VIN=6.0V, VOUT(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 VOUT(E)
(Note 2)
IOUT=40mA, VIN >VDrop+VOUT
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
ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted)
Parameter
GM6251-1.8V GM6251-2.5V GM6251-2.7V GM6251-2.8V GM6251-3.0V GM6251-3.2V Load Stability 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 Input - Output (Note 3) Voltage Differential GM6251-3.3V GM6251-3.5V GM6251-3.6V GM6251-4.0V GM6251-4.4V GM6251-4.5V GM6251-5.0V
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
Symbol
Condition
VIN=2.8V, 1mA IOUT VIN=3.5V, 1mA IOUT VIN=3.7V, 1mA IOUT VIN=3.8V, 1mA IOUT VIN=4.0V, 1mA IOUT VIN=4.2V, 1mA IOUT 60mA 80mA 80mA 80mA 80mA 80mA 100mA 100mA 100mA 100mA 100mA 100mA 100mA
Min
Typ
45 45 45 45 45 45 45 45 45 40 40 40 40
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
Max
90 90 90 90 90 90 90 90 90 80 80 80 80
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
DVOUT
VIN=4.3V, 1mA IOUT VIN=4.5V, 1mA IOUT VIN=4.6V, 1mA IOUT VIN=5.0V, 1mA IOUT VIN=5.4V, 1mA IOUT VIN=5.5V, 1mA IOUT VIN=6.0V, 1mA IOUT
mV
1
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
mV
1
GM6251
6
ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted)
Parameter
GM6251-1.8V GM6251-2.5V GM6251-2.7V GM6251-2.8V GM6251-3.0V GM6251-3.2V Supply Current GM6251-3.3V GM6251-3.5V GM6251-3.6V GM6251-4.0V GM6251-4.4V GM6251-4.5V GM6251-5.0V Output Current Limit GM6251-1.8V GM6251-2.5V GM6251-2.7V GM6251-2.8V GM6251-3.0V GM6251-3.2V Input Stability GM6251-3.3V GM6251-3.5V GM6251-3.6V GM6251-4.0V GM6251-4.4V GM6251-4.5V GM6251-5.0V Input Voltage Output Voltage Temperature Characteristics VIN DVOUT DTopr * VOUT IOUT = 10mA -30C Topr 80C 100 DVOUT DVIN * VOUT 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 ISS
Symbol
Condition
VIN = 2.8V VIN = 3.5V VIN = 3.7V VIN = 3.8V VIN = 4.0V VIN = 4.2V VIN = 4.3V VIN = 4.5V VIN = 4.6V VIN = 5.0V VIN = 5.4V VIN = 5.5V VIN = 6.0V
Min
Typ
Max
Unit Circuit
1.0
2.9
A
2
500
mA
-
0.2
0.3
%/ V
1
10
V ppm/C
1
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
GM6251
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 1F. 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 GM6251 VIN VO VIN
A
+
1F (Tantalum)
VSS
+
1F (Tantalum)
V
RL
Circuit 2 GM6251 VIN VO Open
GM6251
VIN
VSS
A
8
PERFORMANCE CHARACTERISTICS FOR GM6251 - 3.0
3.1
1.0 0.8 0.6 0.4 0.2 0.0 -0.2
Output Voltage: VOUT (V)
3.0
Topr= 25C
2.9
2.8
VIN=4V CIN=1F CL=1F
20 40 60 80 100 120 140 160 180
Output Current: IOUT (mA)
Input/ Output Voltage Diff.: VDIF (V)
CIN=1F CL=1F
Topr= 25C
2.7 0
0
20
40
60
80
100 120 140 160 180
Output Current: IOUT (mA)
Figure 1: Output Voltage vs. Output Current
Figure 2: Input/ Output Voltage differential vs. Output Current
3.20
3.10
3.00
Output Voltage: VOUT (V)
Output Voltage: VOUT (V)
IOUT=1mA
3.05
IOUT=1mA
2.80
3.00
40mA
2.60
40mA
2.95
10mA
10mA
2.40
Topr= 25C CIN=1F CL=1F
3.0
Input Voltage: VIN(V)
2.90
2.20 2.5
2.85 2.5 3 4 5 6 7
Input Voltage: VIN(V)
Topr= 25C CIN=1F CL=1F
8 9 10
Figure 3: Output Voltage vs. Input voltage
Figure 4: Output Voltage vs. Input voltage
3.0
2.50
Supply Current: ISS (A)
2.0
Supply Current: ISS (A)
Topr= 25C
2.25
2.00
Topr= 25C
1.0
1.75
0 0 2 4 6 8 10
Input Voltage: VIN(V)
1.50 3 4 5 6 7 8 9 10
Input Voltage: VIN(V)
GM6251
9
Figure 5: Supply Current vs. Input Voltage
Figure 6: Supply Current vs. Input Voltage
PERFORMANCE CHARACTERISTICS FOR GM6251- 3.0
6 6 6 5.0
Input Voltage
4
Input Voltage: VIN(V)
5
Output Voltage: VOUT (V)
Input Voltage
5
Input Voltage: VIN(V)
4.5
Output Voltage: VOUT (V)
2 0
4 3
4
4.0
Output Voltage
-2 -4 -6
Time (0.4msec/ div)
3
IOUT= 1mA CL=1F Output Voltage
3.5
2
IOUT= 1mA CL=1F
1 0
2
3.0
1
Time (1msec/ div)
2.5
Figure 7: Input Transient Response 1
60 Ripple Rejection Rate :RR (dB) 50 40 30 20 10 0 0.01
Figure 8: Input Transient Response 2
VIN= 4VDC+1VP-PAC IOUT= 40mA, CL= 1F
0.1 1 Ripple Frequency: f (kHz)
10
Figure 9: Ripple Rejection Rate
TO-92 PACKAGE OUTLINE DIMENSIONS
4.6 0.1 2 3.6 0.15 2
4.6 0.1 2.3 1.45 0.1 2 3 - 0.46 2
14.5 0.5
GM6251
0.38 0.015 1.27 1.27
3.6 0.15 1.3 0.1
Unit: mm
10
5
5
SOT-25(SOT-23-5) PACKAGE OUTLINE DIMENSIONS
2.9 0.1 1.9 0.05 0.95 0.038 0.13
Pad Layout
0~0.1 1.5 0.05 2.8 0.1
0.094 2.4
0.028 0.7 0.039 1.0
0.65 0.05
0.35 0.03
0.8 0.05
0.037 0.95 0.037 0.95
5
5
0.074 1.9
( Inches ) mm
1.10 0.1
SOT-89 PACKAGE OUTLINE DIMENSIONS
4.50 0.05 1.650 REF 1.400 REF R 0.13~4X R 0.13~3X
1.50 0.05
Pad Layout
2
NO DRAFT~2
Units: mm
4.20 0.05 2.5 0.05
6 R 0.1 MAX 1.00 0.07 0.46 0.025
45 0.7 1.5
1.50
1.50
0.38 0.01
3
3.00 0.025 6~2X R 0.13~2X
1.5
1
R 0.13~2X 6~2X
Unit: mm
GM6251
11
ORDERING NUMBER
GM 6251 1.8 T92 B
Gamma Micro. Shipping B: ESD Bag RL: Ammo Pack T: Tube R: Tape & Reel
(Tape)
Circuit Type
Output Voltage 1.8: 1.8V, 2.5: 2.5V 2.7: 2.7V, 2.8: 2.8V 3.0: 3.0V, 3.3: 3.3V 3.5: 3.5V, 3.6: 3.6V 4.0: 4.0V, 4.4: 4.4V 4.5: 4.5V, 5.0: 5.0V
Package ST25: SOT-25 T92: TO-92 ST89: SOT-89
GM6251
12
13
GM6251

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