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参数资料
| 型号： | G5105TBU |
| 厂商： | Global Mixed-mode Technology Inc. |
| 元件分类： | 电源供应 |
| 英文描述： | Low-Noise Step-up DC-DC Converter |
| 中文描述： | 低噪声升压型DC - DC转换器 |
| 文件页数： | 4/11页 |
| 文件大小： | 700K |
| 代理商： | G5105TBU |
Ver: 0.6 Preliminary
May 10, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G5105
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
VCC, SHDN to GND. . . . . . . . . . . . . . . . .-0.3V to +7V
FB, COMP to GND . . . . . . . . . . . . . . . . . . -0.3V to VCC
SW to GND . . . . . . . . . . . . . . . . . . . . .. . .-0.3V to +24V
Operating Temperature . . . . . . . . . . . . . .-40°C to 85°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . .125°C
Storage Temperature. . . . . . . . . . . . . . -65°C to 150°C
Reflow Temperature (soldering, 10sec) . . . . . . 260°C
Stress beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the device.
Electrical Characteristics
(VCC=V SHDN =3.6V, TA=25°C)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
2.5
---
5.5
V
Input Voltage UVLO
1.7
2.0
2.3
V
VFB = 1.5V (no switching)
---
100
200
A
VFB = 0V (switching)
---
2
mA
Quiescent Current
V SHDN = 0V
---
0.1
1
A
Initial Accuracy
1.25
1.28
1.31
V
FB Comparator Trip Point
Temperature Coefficient
---
100
---
ppm/°C
Error Amp Transconductance
---
0.76
---
mmho
Error Amp Voltage Gain
---
100
---
V/V
Output Over Voltage Protection
---
5
10
%
Switching Frequency
VFB = 0.2V
0.7
1
1.3
MHz
Maximum Duty
85
---
%
Switch RDS(ON)
ISW = 150mA
---
0.6
1
Ω
Switch Leakage Current
VSW = 20V
---
0.1
10
A
Switch Current Limit
0.7
0.95
1.3
A
SHDN
Pin Voltage High
2
---
V
SHDN
Pin Voltage Low
---
0.8
V
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