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GS2905 の電気的特性と機能

GS2905のメーカーはGlobaltechです、この部品の機能は「500mA CMOS LDO Voltage Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 GS2905
部品説明 500mA CMOS LDO Voltage Regulator
メーカ Globaltech
ロゴ Globaltech ロゴ 




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GS2905 Datasheet, GS2905 PDF,ピン配置, 機能
GS2905
500mA CMOS LDO Voltage Regulator
Product Description
The GS2905 series is a group of positive voltage output, three-pin regulators, that provide
a high current even when the input/output voltage differential is small. Low power
consumption and high accuracy is achieved through CMOS and programmable fuse
technologies. Output voltage: 1.5V to 6.0V.
The GS2905 consists of a high-precision voltage reference, an error correction circuit, and
a current limited output driver. Transient response to load variations has improved in
comparison to the existing series.
The GS2905 incorporates both over-temperature and over-current protection. SOT-89 and
SOT-223 packages are available.
Features
Applications
n Maximum output current: 500mA
n Wireless Communication Systems
n Highly accurate: Output voltage ± 1.4% n Battery-Operated Systems
(± 1% for semi-custom products)
n Portable Computer
n Low power consumption
n Portable Cameras and Video Recorders
n Over-Current and Over-temperature
n Voltage Regulator for Microprocessor
Protection
n Reference Voltage Sources
n Small input/output differential:0.3V at n Voltage Regulator for CD- ROM Drivers,
300mA
LAN Cards and DVD.
n Instrumentation
n Pagers
www.globaltechsemi.com
1
GS2905
Free Datasheet http://www.datasheet4u.com/

1 Page





GS2905 pdf, ピン配列
GS2905
Globaltech Semiconductor
Absolute Maximum Ratings
Symbol
Parameter
Maximum
Unit
uJA Thermal Resistance
SOT- 89
SOT223
120
100
°C/W
VIN Input Voltage
6.5 V
IOUT
Output Current
500 mA
VOUT
Output Voltage
VSS-0.3 to VIN +0.3
V
TJ Operating Junction Temperature
0 to 70
°C
TSTG
Storage temperature Range
-65 to 150
°C
TLEAD Lead Temperature (Soldering, 10 sec)
300
°C
Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of the specifications is not implied.
Exposure to Absolute Maximum Ratings conditions for extended periods may affect device reliability.
Electrical Characteristics VOUT (T) =2.0 (Note 1)
Parameter
Conditions
Test
Circuit
Min
Typ. Max
Unit
Output Voltage Accuracy
IOUT = 1mA
IOUT = 0.1mA to 500mA (TA=25°C)
Line regulation
IOUT = 1mA
VOUT/( VINX VOUT)
(VOUT+0.1V) VIN 6.5V
Load Regulation (Note1)
VIN=6V
0.1mA IOUT 500mA, COUT=1µF
Fig. 1
Fig. 2
-1.4%
-4.5%
-
-
1.4%
2.0%
V
- 0.1 0.3 %/V
- 0.005 0.04 %/mA
Maximum output current
Current Limit
VIN=5V
VOUT 0.96 X VRATING
500
500
mA
mA
Ground Pin Current
Dropout Voltage
IOUT= 0mA~500mA
Fig. 3
-
15 30 µ A
For VOUT 2.5V
IOUT=100mA
IOUT=500mA
100 180
mV
600 900
For 2.0V VOUT 2.5V
IOUT=100mA
IOUT=500mA
For VOUT 2.0V
IOUT=100mA
IOUT=500mA
Note1: Load Regulation is measured using pulse techniques with duty cycle 5%
150
750
200
1100
300
900
400
1500
mV
mV
www.globaltechsemi.com
3
GS2905
Free Datasheet http://www.datasheet4u.com/


3Pages


GS2905 電子部品, 半導体
GS2905
Globaltech Semiconductor
Typical Applications
Low Dropout Linear Regulator
VIN
1 GS2905-3.3 3
CIN
1mF
2
GND
VOUT
COUT
1mF
A 1µF (or greater) capacitor is required between the GS2905 output and ground for stability.
Without this capacitor the part will oscillate. Even though most types of capacitor may work,
the equivalent series resistance (ESR) should be held to 5 or less if Aluminum electrolytic
type is used. Many Aluminum electrolytic have electrolytes that freeze at about -30°C, so
solid tantalums are recommended for operation below -25°C. The value of this capacitor
may be increased without limit.
A 0.1µF capacitor (or greater) should be placed from the GS2905 input to ground if the lead
inductance between the input and power source exceeds 500nH (approximately 10 inches
of trace).
www.globaltechsemi.com
6
GS2905
Free Datasheet http://www.datasheet4u.com/

6 Page



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部品番号部品説明メーカ
GS2905

500mA CMOS LDO Voltage Regulator

Globaltech
Globaltech


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