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FAN21SV04MPX 데이터시트(PDF) 5 Page - Fairchild Semiconductor

부품명 FAN21SV04MPX
상세설명  TinyBuck??4A, 24V Single-Input Integrated Synchronous Buck Regulator
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제조업체  FAIRCHILD [Fairchild Semiconductor]
홈페이지  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN21SV04MPX 데이터시트(HTML) 5 Page - Fairchild Semiconductor

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© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN21SV04 • Rev. 1.0.1
5
Electrical Characteristics
Recommended operating conditions and using the circuit shown in Figure 1, with VIN, VIN_Reg=12V, unless
otherwise noted.
Parameter
Conditions
Min.
Typ.
Max.
Units
Power Supplies
Operating Current
(VIN+VIN_Reg)
VIN=12V, 5V_Reg Open, CLK Open,
fSW=500KHz, No Load
22
30
mA
VIN_Reg Operating Current
EN=High, 5V_Reg Open, CLK Open,
fSW=500KHz
11
mA
VIN_Reg Quiescent Current
EN=High, FB=0.9V
4
5
mA
VIN_Reg Standby Current
EN=0, VIN=12V
1
mA
5V_Reg Output Voltage
Internal VCC Regulator, No Load,
6.5V<VIN_Reg<24V
4.7
5.0
5.3
V
5V_Reg Max. Current Load
VIN_Reg=12V
5
mA
Rising VIN, VIN=VIN_Reg
5.6
6.3
V
VIN_Reg UVLO Threshold
Falling VIN, VIN=VIN_Reg
5
V
Reference
FAN21SV04MPX, TA=25°C
794
800
806
Reference Voltage measured
at FB (See Figure 4 for
Temperature Coefficient)
FAN21SV04EMPX, TA=25°C
795
800
805
mV
Oscillator
RT=50kΩ to GND (Master Mode)
255
300
345
Frequency
RT=24kΩ to GND (Master Mode)
540
600
660
KHz
Frequency in Slave Mode
Compared to Master Mode
RT=24 kΩ to 50kΩ to 5V_Reg
(Slave Mode)
-15
+15
%
Minimum On Time
(2)
40
65
ns
Duty Cycle
VIN=6.5V, fSW=600KHz
80
85
%
Ramp Amplitude,
Peak–to-Peak
(2)
VIN=16V, 1.8VOUT, RT=30kΩ, RRAMP=200kΩ
0.5
V
Minimum Off Time
(2)
100
150
ns
Synchronization
CLK Output Pulse Width
Master (RT to GND)
70
85
100
ns
CLK Output Sink Current
Master, VCLK=0.4V
0.25
0.35
mA
CLK Output Source Current
Master, VCLK=2V
-2.5
-2.0
mA
CLK Input Pulse Width
Slave: VCLK > 2V
50
ns
CLK Input Source Current
Slave: VCLK=1V
-230
-200
-170
µA
CLK Input Threshold, Rising
Slave
1.73
1.83
1.93
V
Soft-Start
VOUT to Regulation (T0.8)
2.5
ms
Fault Enable/SSOK (T1.0)
Frequency=500KHz
3.1
ms
Error Amplifier
DC Gain
(2)
80
85
dB
Gain Bandwidth Product
(2)
12
15
MHz
Output Voltage Swing (VCOMP)
VIN_Reg > 6.5V
0.4
4.0
V
Output Current, Sourcing
5V_Reg=5V, VCOMP=2.2V
1.5
2.2
2.5
mA
Output Current, Sinking
5V_Reg=5V, VCOMP=1.2V
0.8
1.2
1.5
mA
FB Bias Current
VFB=0.8V, TA=25°C
-850
-650
-450
nA
Note:
2.
Specifications guaranteed by design and characterization; not production tested.


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