파트넘버.co.kr G901T21U 데이터시트 PDF


G901T21U 반도체 회로 부품 판매점

3.3 V 300MA LOW DROPOUT REGULATOR



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ETC
G901T21U 데이터시트, 핀배열, 회로
Global Mixed-mode Technology Inc.
G901
3.3V 300mA Low Dropout Regulator
Features
„Dropout voltage typically 0.45V @ IO = 300mA
„Output current in excess of 300mA
„Output voltage accuracy +3%
„Quiescent current, typically 0.6mA
„Internal short circuit current limit
„Internal over temperature protection
Applications
„CD-ROM
„Modem
„LAN Hub
„Networking Appliances
„Mouse
„Keyboard
General Description
The G901 positive 3.3V voltage regulator features the
ability to source 300mA of output current with a dropout
voltage of typically 0.45V. A low quiescent current is
provided. The typical quiescent current is 0.6mA.
Familiar regulator features such as over temperature
and over current protection circuits are provided to
prevent it from being damaged by abnormal operating
conditions.
Ordering Information
ORDER NUMBER
PACKAGE TYPE
1
PIN OPTION
2
G901T21U
SOT 89
VOUT
GND
G901T24U
SOT 89
GND
VIN
* For other package types, pin options and package, please contact us at sales @gmt.com.tw
3
VIN
VOUT
Order Number Identification
GXXX XX X X
Packing Type
Pin Option
Package Type
Part Number
PACKAGE TYPE
T2 : SOT 89
PIN OPTION
12
1 : VOUT
2 : VOUT
3 : GND
4 : GND
5 : VIN
6 : VIN
GND
VIN
VOUT
VIN
GND
VOUT
3
VIN
GND
VIN
VOUT
VOUT
GND
PACKING
U & D : Tape & Reel Direction
T : Tube
B : Bag
Typical Application
[Note 4]: Type of COUT
VIN G901
CIN
1µF
IQ
IO
VOUT
+ COUT
10µF
Package Type
Ver: 1.0
Mar 22, 2002
1
Top View
12 3
SOT 89
TEL: 886-3-5788833
http://www.gmt.com.tw


G901T21U 데이터시트, 핀배열, 회로
Global Mixed-mode Technology Inc.
G901
Absolute Maximum Ratings
(Note 1)
Input Voltage………………………………….……….10V
Power Dissipation Internally Limited
(Note2)
Maximum Junction Temperature………….………150°C
Storage Temperature Range..….…-65°C TJ +150°C
Lead Temperature, Time for Wave Soldering
SOT89 Package……..……..……………….....260°C, 4s
CSOonTti8n9u(o1u)…s …Po…w…er…Di…ss…ipa…ti…on…(T.…A =…+…2…5°…C)……..0.5W
Operating Conditions
(Note 1)
Input Voltage…………………………...…………4V ~ 7V
Temperature Range……………….…...0°C TJ 125°C
Note (1): See Recommended Minimum Footprint.
Electrical Characteristics
VIN =5V, IO = 300mA, CIN=1µF, COUT =10µF. All specifications apply for TA = TJ = 25°C.[Note 3]
PARAMETER
CONDITIONS
Output Voltage
5mA < IO <300mA
Line Regulation
4V < VIN < 6.5V, IO = 50mA
Load Regulation 10mA < IO < 300mA
Output Impedance 100mA DC and 100mA AC, fO = 120Hz
Quiescent Current VIN = 5V
Ripple Rejection fi = 120 Hz, 1VP-P, Io = 100mA
Dropout Voltage
IO = 300mA
IO = 50mA
Short Circuit Current
Over Temperature
MIN
3.201
TYP
3.3
3
28
102
0.6
42
450
50
0.77
150
MAX
3.399
100
UNITS
V
mV
mV
m
mA
dB
mV
A
°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 re-
sistance, 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 G901 in SOT89 package, θJA is 250°C/W(See recommend
minimum footprint). The safe operation in SOT 89, 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 pos-
sible.
Note4: The type of output capacitor should be tantalum or aluminum.
Definitions
Dropout Voltage
The input/output Voltage differential at which the regu-
lator 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 cur-
rent 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 af-
fected.
Load Regulation
The change in output voltage for a change in load
current at constant chip temperature. The measure-
ment is made under conditions of low dissipation or by
using pulse techniques such that average chip tem-
perature 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.
Ver: 1.0
Mar 22, 2002
TEL: 886-3-5788833
http://www.gmt.com.tw
2




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G901T21U

3.3 V 300MA LOW DROPOUT REGULATOR - ETC