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參數資料
| 型號： | FAN4855 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 500mA High Efficiency Boost Regulator with Adjustable Output, Shutdown and Low Battery Detect |
| 中文描述： | 500mA的高效率升壓可調輸出，關機和低電池檢測穩壓器 |
| 文件頁數： | 3/13頁 |
| 文件大小： | 148K |
| 代理商： | FAN4855 |
FAN4855
PRODUCT SPECIFICATION
REV. 1.0.0 3/17/04
3
Recommended Operating Conditions
Electrical Characteristics
Unless otherwise specified, V
are at T
A
= +25°C
Parameter
Start Up Voltage
Operating Voltage
IN
= 1.6V to 3V, I
LOAD
= 1mA, T
A
= -40°C to +85°C. Test Circuit Fig.1. Typical values
Notes:
1. R4, R5, R6 tolerance
2. Current through R1, R2 is not taken into account.
≤
0.1%.
Parameter
Temperature Range
V
IN
Operating Range
V
OUT
Operating Range
Min.
-40
1.6
3.0
Max.
+85
0.9 V
5.0
Units
°C
V
V
OUT
Conditions
Min.
Typ.
1.35
1.0
Max.
1.6
Units
V
V
I
After start I
5V
V
OUT
(nom.) = 3.3V (Note 1)
V
OUT
(nom.) = 5V
LOAD
< 1mA
LOAD
=10mA, V
OUT
= 3.3V or
Output Voltage
3.15
4.775
3
300
200
0.8
1.2
1.6
1.7
3.3
5
3.45
5.225
5
V
V
V
Output Voltage Adjust Range
Steady State Output Current
V
V
V
V
V
V
OUT
= 3.3V, V
= 5V, V
= 3V
= 2.4V
= 1.8V
= 1.6V
IN
= 2.5V
= 2.5V
500
330
1.4
1.7
2.2
2.5
1
0.5
0.5
0.5
1
1.243
0.390
25
0.35
95
8
mA
mA
μ
μ
μ
μ
μ
%
%
%
%
V
V
mV
%
μ
A
OUT
IN
Pulse Width
IN
2
s
s
s
s
s
IN
2.5
3.3
4.0
IN
IN
Minimum Off-Time
Line Regulation
I
V
0 to 250mA, V
0 to 150mA, V
OUT
= 2mA, V
= 5V
OUT
= 3.3V
2
2
OUT
Load Regulation
IN
= 2.4V, V
= 2.4V, V
OUT
= 3.3V
= 5V
IN
OUT
Feedback Voltage (VFB)
LBI Threshold Voltage
LBI Hysteresys
Internal NFET, PFET ON Resist. I
Power Efficiency
Input Current in Shut Down
Mode
Quiescent Current
LOAD
I
LOAD
SHDN = 0V, V
= 100mA
= 200mA, V
IN
= 3V, V
= 3V (Note 2)
OUT
= 3.3V
IN
50
SHDN = 3V, V
(Note 2)
V
LBI
= 0, I
V
IN
= 3V, V
V
IN
= 1.6V, V
IN
= 3V, V
OUT
= 3.3V
80
160
μ
A
LBO Output Voltage Low
SHDN Input Threshold Voltage
SHDN Input Threshold Voltage
SINK
= 1mA
= 3.3V/5V
= 3.3V/5V
0.2
1.5
0.8
V
V
V
OUT
OUT
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| FAN4855MTC | 功能描述:直流/直流開關調節器 Adj 2-Cell Boost RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| FAN4855MTCX | 功能描述:直流/直流開關調節器 Adj 2-Cell Boost RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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| FAN4855MUX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:500mA High Efficiency Boost Regulator with Adjustable Output, Shutdown and Low Battery Detect |
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