GMT G915T21B 1.5v 600ma low dropout regulator Datasheet

Global Mixed-mode Technology Inc.
1.5V 600mA Low Dropout Regulator
Features
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G915
General Description
Wide Input Voltage Range 2.9V~6V
Output Current in Excess of 600mA
Output Voltage Accuracy ±2%
Quiescent Current, Typically 0.3mA
Internal Short Circuit Current Limit
Internal Over Temperature Protection
The G915 positive 1.5V voltage regulator features the
ability to source 600mA of output current. A low quiescent current is provided. The typical quiescent current is 0.3mA.
Familiar regulator features such as over temperature
and current limit protection circuits are provided to prevent it from being damaged by abnormal operating
conditions.
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
PACKAGE
G915T24U
915x
-40°C ~85°C
SOT89
PIN OPTION
2
1
GND
VIN
3
VOUT
* For other package types, pin options and package, please contact us at [email protected]
Order Number Identification
GXXX
XX
X
X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE
PIN OPTION
1
1 : VOUT
2 : VOUT
3 : GND
4 : GND
5 : VIN
6 : VIN
T2 : SOT89
2
GND
VIN
VOUT
VIN
GND
VOUT
Typical Application
PACKING
3
VIN
GND
VIN
VOUT
VOUT
GND
U : Tape & Reel
B : Bag
Package Type
[Note 4]: Type of COUT
IO
G915
VIN
C1
1µF
IQ
VOUT
Top
TopView
View
COUT
10µF
1
3
2
SOT89
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.1
Aug 04, 2004
1
G915
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note 1)
Input Voltage……………………………………………7V
Power Dissipation Internally Limited
(Note2)
Maximum Junction Temperature.........................150°C
Storage Temperature Range.........-65°C ≤ TJ ≤+150°C
Reflow Temperature (soldering, 10sec)............260°C
Continuous Power Dissipation (TA = + 25°C)
SOT89(1)...............................................................0.5W
Thermal Resistance Junction to Case
SOT89……………………………………………...55°C/W
Operating Conditions
(Note 1)
Input Voltage..................................................2.9V ~ 6V
Temperature Range...........................-40°C ≤ TA ≤85°C
Note (1): See Recommended Minimum Footprint.
Electrical Characteristics
VIN =2.5V, IO =500mA, CIN=10µF, COUT =10µF. All specifications apply for TA =TJ =25°C. [Note 3]
PARAMETER
Input Voltage
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Ripple Rejection
Short Circuit Current
Current Limit
Over Temperature
Over Temperature Hysterics
CONDITION
5mA < IO < 600mA
4V < VIN < 6V, IO = 10mA
10mA < IO < 600mA
VIN = 5V
fi = 120 Hz, 1VP-P, IO = 100mA
MIN
TYP
MAX
UNIT
2.9
-------------------
--1.5
10
10
0.3
50
0.65
0.8
145
25
6
-------------------
V
V
mV
mV
mA
dB
A
A
°C
°C
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions
are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics.
Note2: The maximum power dissipation is a function of the maximum junction temperature, TJmax ; total thermal resistance, θJA, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is Tjmax-TA / θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will
go into thermal shutdown. For the G915 in the SOT89 package is 250°C/W (See Recommended Minimum
Footprint). The safe operation in SOT 89 package, it can see “Typical Performance Characteristics” (Safe
Operating Area).
Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Note4: The type of output capacitor should be tantalum, aluminum or ceramic.
Definitions
Dropout Voltage
The input/output Voltage differential at which the regulator output no longer maintains regulation against
further reductions in input voltage. Measured when the
output drops 100mV below its nominal value, dropout
voltage is affected by junction temperature, load current and minimum input supply requirements.
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measurement is made under conditions of low dissipation or by
using pulse techniques such that average chip temperature is not significantly affected.
Maximum Power Dissipation
The maximum total device dissipation for which the
regulator will operate within specifications.
Line Regulation
The change in output voltage for a change in input voltage. The measurement is made under conditions of low
dissipation or by using pulse techniques such that average chip temperature is not significantly affected.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.1
Aug 04, 2004
2
G915
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
VIN =5V, CIN=1µF, COUT =10µF, TA =25°C. unless otherwise noted.)
Line Transient
Load Transient
Start-UP
Short Circuit Current
Overcurrent Protection Characteristics
Ripple Rejection
80
Ripple Rejection (dB)
70
IL=10mA
60
50
40
IL=100mA
30
IL=600mA
20
VIN=4V ; COUT=10µF
10
0
10
100
1000
10000
100000
1000000
Frequency (Hz)
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.1
Aug 04, 2004
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G915
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
SOT89 Max. Power Dissipation
vs. PCB Top Copper Area
TAMB = 25°C ; Still Air
SOT89 Max. Power Dissipation
vs. TAMB (still air)
( Different PCB Top Copper Area )
1.8
A=0.1
A=0.2
Max. Dissipation Power (W)
Max. Dissipation Power (W)
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
1.5
A=0.3
A=0.4
1.3
A=0.5
A=1.0
A=1.5
1.1
A=2.0
A=2.5
0.9
A=3.0
A=3.5
A=4.0
0.7
A=4.5
A=5.0
0.5
0
0
1
2
3
4
PCB Top Copper Area (in2)
25
5
35
45
55
65
75
85
TAMB (°C)
Quiescent Current vs. Temperature
Dropout Voltage vs. IL
1500
400
1400
300
Dropout Voltage (mV)
Quiescent Current (µA)
Unit : in2
1.7
VIN=5V
200
100
VIN=4V
TA=85°C
1300
1200
1100
1000
TA=25°C
900
TA=-25°C
800
700
600
100
0
-25 -15 -5
5
15 25 35 45 55 65 75 85
200
300
400
IL (mA)
Temperature (°C)
600
Output Voltage vs. VIN
Output Voltage vs. Temperature
1.53
1.514
IL=10mA
1.512
VIN=5V
Output Voltage (V)
1.52
Output Voltage (V)
500
1.51
1.5
1.49
VIN=3V
VIN=4V
1.51
1.508
1.506
1.502
1.47
1.5
-5
15
35
55
Temperature (°C)
75
TA=25°C
1.504
1.48
-25
TA=85°C
IL=10mA
TA=-25°C
2.5
3
3.5
4
4.5
VIN (V)
5
5.5
6
Recommend Minimum Footprint
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.1
Aug 04, 2004
4
G915
Global Mixed-mode Technology Inc.
Package Information
D
D1
POLISH
E
HE
A1
e
C
MATTE FINISH
A
b
b1
b
POLISH
SOT89 (T2) Package
DIMENSIONS IN MILLIMETER
MIN
NOM
MAX
MIN
DIMENSIONS IN INCH
NOM
MAX
A
1.40
1.50
1.60
0.055
0.059
0.063
A1
b
0.80
0.36
1.04
0.42
----0.48
0.031
0.014
0.041
0.016
----0.018
b1
C
0.41
038
0.47
0.40
0.53
0.43
0.016
0.014
0.018
0.015
0.020
0.017
D
D1
4.40
1.40
4.50
1.60
4.60
1.75
0.173
0.055
0.177
0.062
0.181
0.069
HE
E
e
----2.40
2.90
----2.50
3.00
4.25
2.60
3.10
----0.094
0.114
----0.098
0.118
0.167
0.102
0.122
SYMBOL
Package Orientation
Feed Direction
SOT89 Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.1
Aug 04, 2004
5
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