Global Mixed-mode Technology G910, G911 Service Manual
查询G910供应商
Global Mixed-mode Technology Inc.
G910/G911
3.3V 400mA/250mA+ Low Dropout Regulator
Features
Dropout voltage typically 0.8V @ IO = 400mA/
250mA
Output current in excess of 400mA / 250mA+
Output voltage accuracy +2%
Quiescent current, typically 0.6mA
Internal short circuit current limit
Internal over temperature protection
+
Ordering Information
ORDER NUMBER PACKAGE TYPE
G910T21U SOT 89 V
G911T24U SOT 89 GND VIN V
G910T65U SOT 223 VIN GND V
G910TD1B TO92 V
G911TD4B TO92 GND VIN V
G910T81B µTO92 V
G911T84B µTO92 GND VIN V
G911T85B µTO92 VIN GND V
* For other package types, pin options and package, please contact us at sales@gmt.com.tw
General Description
The G910/G911 positive 3.3V voltage regulator features the ability to source 400mA/ 250mA
current with a dropout voltage of typically 0.8V. A low
quiescent current is provided. The typical quiescent
current is 0.6mA.
[+
For µTO-92 & TO-92 package
Familiar regulator features such as over temperature and
over current protection circuits are provided to prevent it
from being damaged by abnormal operating conditions.
PIN OPTION
1 2 3
GND V
OUT
GND V
OUT
GND V
OUT
]
+
of output
IN
OUT
OUT
IN
OUT
IN
OUT
OUT
Order Number Identification
GXXX XX X X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE PIN OPTION PACKING
T2 : SOT 89
T6 : SOT 223 1 : V
T7 : SOT 23 2 : V
1 2 3
GND VIN T : Tube
OUT
VIN GND B : Bag
OUT
T8 : µTO92 3 : GND V
TD : TO92 4 : GND V
5 : V
6 : V
GND V
IN
V
IN
VIN
OUT
V
IN
GND
OUT
OUT
OUT
U & D : Tape & Reel Direction
Typical Application Package Type
[Note 4]: Type of C
V
V
V
OUT
I
I
I
O
O
O
V
V
G910
G910
C1
C1
C1
0.47µF
0.47µF
0.47µF
G910
IQ
IQ
IQ
IN
IN
IN
V
C
C
C
OUT
OUT
OUT
10µF
10µF
10µF
OUT
OUT
OUT
Top View
Top ViewTop View
Top ViewTop View
Top ViewTop View
1
1
1
1
SOT 89
SOT 89
3
3
3
3
2
2
2
2
、、、、
、、、、
223
223
Top View
Top View
Top View
Top View
1
1
µTO 92
µTO 92
2
2
3
3
、、、、
、、、、
TO92
TO92
3
3
Top View
Top View
1
2
1
2
SOT 23
SOT 23
Ver: 6.6
Sep 25, 2002
1
TEL: 886-3-5788833
http://www.gmt.com.tw
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
Input Voltage………………………………………….10V
Power Dissipation Internally Limited (Note2)
(Note 1)
G910/G911
Operating Conditions
Input Voltage…………………………..…..………4V ~ 7V
Temperature Range………………….….0°C ≤ T
(Note 1)
≤125°C
J
Maximum Junction Temperature…………………150°C
Storage Temperature Range..……-65°C ≤ T
≤+150°C
J
Lead Temperature, Time for Wave Soldering
SOT89, SOT223, µTO92 Package……..…...260°C, 4s
Continuous Power Dissipation (T
SOT 89
SOT 223
µTO 92 & TO 92
Note
(1)
………………………….…………………..0.5W
(1)
……………………….……………………0.8W
(1)
…………….……………………..0.5W
(1)
: See Recommended Minimum Footprint.
= + 25°C)
A
Electrical Characteristics
VIN =5V, IO = 400mA/250mA+, CIN=10µF, C
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage
Line Regulation 4V < VIN < 7V, IO = 10mA 10 30 mV
Load Regulation
Output Impedance 100mA DC and 100mA AC, fO = 120Hz
Quiescent Current VIN = 5V 0.6 mA
Ripple Rejection fi = 120 Hz, 1V
Dropout Voltage
Output Current
Short Circuit Current 0.77 A
Over Temperature 125 °C
+
[
for µTO-92
Note 1:
& TO-92
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are
5mA < IO <400mA
IO <250mA+
5mA <
10mA < IO < 400mA
IO <250mA+
10mA <
, Io = 100mA 42 dB
IO = 400mA 0.65
IO =250mA+ 0.35
I
= 50mA 50 100 mV
O
Continuous Test
TA = 25°C, TJ < 125°C,
V
within ±2% (Note 2)
OUT
Package
P-P
]
conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics.
Note 2:
The maximum power dissipation is a function of the maximum junction temperature, T
tance,
T
jmax-TA
, and ambient temperature TA. The maximum allowable power dissipation at any ambient temperature is
θ
JA
/
. If this dissipation is exceeded, the die temperature will rise above 150°C and IC will go into thermal
θ
JA
shutdown. For the G910 in SOT 89 package & µTO 92,TO 92,
156°C/W (See Recommended Minimum Footprint). The safe operation in SOT 89,µTO 92,TO 92 & SOT 223
package, it can see “Typical Performance Characteristics” (Safe Operating Area).
Note3:
Note4:
Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
The type of output capacitor should be tantalum or aluminum.
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.
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.
=10µF. All specifications apply for TA = TJ = 25°C.[Note 3]
OUT
3.234 3.3 3.366 V
42 60
28 45
102
VIN = 4.5V, mounted on SOT 89 recommended minimum footprint
V
= 5.2V, µTO 92 & TO 92 package
IN
0.53 inch leads soldered to PC Board
is 250°C/W and in the SOT-223 package is
θ
JA
400
+
250
; total thermal resis-
Jmax
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.
Quiescent Bias Current
Current which is used to operate the regulator chip
and is not delivered to the load.
mV
mΩ
V
mA
Ver: 6.6
Sep 25, 2002
2
TEL: 886-3-5788833
http://www.gmt.com.tw
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN=5V , CIN=1µF , C
Ch1: Vout (offset=3.30V) Ch1: Iout (400mA/div)
Ch2: Vin (offset=5.0V) Ch2: Vout (offset=3.30V)
Iout=100mA
Output Voltage vs. Load Current Dropout Voltage vs. Load Current
3.34
3.33
3.32
3.31
3.3
3.29
Output Voltage (V)
3.28
3.27
0 100 200 300 400 500 600
=10µF, TA=25°C , unless otherwise noted.)
OUT
Line Transient Load Transient
Load Current (mA)
G910/G911
800
700
600
500
400
300
Dropout Voltage (mV)
200
100
0
0 100 200 300 400
Load Current (mA)
Ver: 6.6
Sep 25, 2002
Ground Current vs. Load Current
2.00
1.80
1.60
1.40
1.20
1.00
Quiescent Current (mA)
0.80
0.60
0 100 200 300 400
Load Current (mA)
3
TEL: 886-3-5788833
http://www.gmt.com.tw
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