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參數(shù)資料
| 型號： | FAN5235 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | System Electronics Regulator for Mobile PCs |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 345 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | QSOP-24 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 85K |
| 代理商： | FAN5235 |
FAN5235
REV. 1.3.3 1/3/02
5
Notes
1. The minimum input voltage does not include voltage drop in the source supply due to source resistance. It is operating voltage
for static load conditions. To get acceptable load transient performance, the input voltage required will be much higher, in the
7.5 to 8.5 volt range or even higher depending on the severity of dynamic load, source impedance and input and output
capacitance and inductor values. The user should thoroughly test the performance at minimum input voltage using intended
component values and transient loading.
2. Min/Max specifications are guaranteed by design.
12V Regulator
On Output, V
Off Output, V
Ramp Amplitude, pk-pk
Error Amplifier GBW
Under Voltage Shut Down
Over Voltage Shut Down
Min Duty Cycle
Max Duty Cycle
5V and 3.3V Always
Bypass Switch rdson
Linear Regulator Accuracy
(Continued)
5V-Always
-V
GS
I = 10μA
I = 10μA
100
100
mV
mV
V
MHz
%V
%V
%
%
GS
2
1
76
115
2μs delay
70
80
O
Measured at VFB
12
O
0
32
(By design)
33
34
1.3
1.5
2
%
5.6 to 24V, 0 to 50mA,
5V Main On or Off
I
3.3
+ I
2μs delay
2μs delay
-3.3
Rated Output Current
Over-current Limit
Under-voltage Threshold
Reference
Internal Reference Accuracy
Control Functions
SDWN Off Voltage Max.
SDWN On Voltage Min.
Over-temperature Shutdown, t
Over-temperature Hysteresis
PGOOD Threshold
PGOOD Sink Current
PGOOD leakage
+5V Analog Softstart
+3.3V Analog Softstart
Soft Start Current
PGOOD Min Pulse Width
5
0
50
mA
mA
%
100
70
180
75
80
0-70°C
-1
1
%
800
mV
V
°C
°C
%V
mA
μA
msec
msec
μA
μs
3
j
150
25
-11
PWM Buck Converters
-14
-4
-8.5
O1
1
Css=100nF
Css=100nF
65
65
5
10
Note 2
5
Operating Conditions
Recommended Operating Conditions Unless Noted Refers to Block Diagrams
(Continued)
Parameter
Conditions
Min.
Typ.
Max.
Units
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| FAN5235MTC_Q | 功能描述:DC/DC 開關(guān)控制器 Regulator System Electronics RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| FAN5235MTCX | 功能描述:DC/DC 開關(guān)控制器 Regulator System Electronics RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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