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參數資料
| 型號： | FAN5193 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Two Phase Interleaved Synchronous Buck Converter |
| 中文描述： | 兩相交錯同步降壓轉換器 |
| 文件頁數： | 4/21頁 |
| 文件大小： | 524K |
| 代理商： | FAN5193 |
FAN5193
PRODUCT SPECIFICATION
4
REV. 1.0.1 2/4/02
Electrical Specifications
(V
CC
= 12V,V
OUT
= 1.500V, and T
The
denotes specifications which apply over the full operating temperature range.
A
= +25°C using circuit in Figure 1, unless otherwise noted.)
Parameter
Output Voltage
Output Current
Internal Reference Voltage
Initial Voltage Setpoint
Output Temperature Drift
Line Regulation
Droop
Programmable Droop Range
Total Output Variation,
Steady State
Total Output Variation, Transient
Response Time
Gate Drive On-Resistance
Upper Drive Low Voltage
Upper Drive High Voltage
Lower Drive Low Voltage
Lower Drive High Voltage
Output Driver Rise & Fall Time
Current Mismatch
Output Overvoltage Detect
Efficiency
Conditions
Min.
1.100
Typ.
Max.
1.850
Units
V
A
V
V
mV
μV
mV
%Vout
V
See Table 1
40
1.4925
1.485
1.5000
1.500
+5
+130
-100
1.5075
1.515
I
T
V
I
LOAD
LOAD
= 0 to 70°C
= 11.4V to 12.6V
= 0.8A to I
= 5A
A
CC
3
max
-90
-10
1.430
-110
0
1.570
1
I
LOAD
= 0.8A to I
max
2
I
LOAD
V
out
= 0.8A to I
= 10mV
max
1.430
1.570
V
100
2.0
0.2
0.5
0.2
0.5
20
5
nsec
V
V
V
V
nsec
%
V
%
V
V
I
sink
V
CC
See Figure 3
R
DS,on
HDRV
–V
–V
SW
at I
sink
at I
= 10μA
BOOT
= 10μA
–V
HDRV
source
= 10μA
LDRV
at I
source
= 10μA
(A) = R
DS,on
(B), I
LOAD
= I
max
2.1
2.3
I
I
RT = 41.2K
RT = 125K
RT = 125K
RT = 12.5K
V
VID
= 0.4V
LOAD
LOAD
= I
= 2A (E*-mode)
to 12.5 K
max
85
70
600
Oscillator Frequency
Oscillator Range
Maximum Duty Cycle
Minimum LDRV on-time
Input LOW current, VID pins
Soft Start Current
Enable Threshold
450
200
750
2000
KHz
KHz
%
nsec
μA
μA
V
90
330
50
10
ON
OFF
0A
4.75
100
85
108
1.0
BYPASS Voltage
BYPASS Capacitor
PWRGD Threshold
5
5.25
V
nF
Logic LOW, minimum
Logic LOW, maximum
88
111
20
92
115
%V
out
PWRGD Hysteresis
PWRGD Output Voltage
PWRGD Delay
12V UVLO
UVLO Hysteresis
12V Supply Current
Over Temperature Shutdown
Over Temperature Hysteresis
mV
V
μsec
V
V
mA
°C
°C
I
High
sink
= 4mA
→
0.4
Low
500
9.5
0.5
5
150
25
8.5
10.5
HDRV and LDRV Open
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