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FAN2103MPX 数据表(PDF) 5 Page - Fairchild Semiconductor

部件名 FAN2103MPX
功能描述  3A, 24V Input Integrated Synchronous Buck Regulator
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

FAN2103MPX 数据表(HTML) 5 Page - Fairchild Semiconductor

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© 2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN2103 Rev. 1.0.3
5
Electrical Specifications
Recommended operating conditions are the result of using the circuit shown in Figure 1 unless otherwise noted.
Parameter
Conditions
Min.
Typ.
Max.
Unit
Power Supplies
SW = Open, FB = 0.7V, VCC = 5V,
FSW = 600KHz
8
12
mA
Shutdown: EN = 0, VCC = 5V
7
10
µA
VCC Current
Power Saving Mode, VCC = 5V, FMIN
2.2
4.5
mA
Rising VCC
4.1
4.3
4.5
V
VCC UVLO Threshold
Hysteresis
300
mV
Power Output Section
N-Channel (Q1) RDS(ON)
31
35
m
Ω
N-Channel (Q2) RDS(ON)
VCC = 5V, 25°C
23
25
m
Ω
Oscillator
RT = 50KΩ
255
300
345
KHz
Frequency
RT = 24KΩ
540
600
660
KHz
Minimum On-Time
(2)
50
65
ns
Ramp Amplitude, pk–pk
16VIN, 1.8VOUT, RT = 30KΩ,
RRAMP = 200KΩ
0.53
V
Minimum Off-Time
(2)
100
150
ns
Reference
FAN2103M, 25°C
794
800
806
mV
Reference Voltage (VFB)
FAN2103EM, 25°C
795
800
805
mV
FAN2103M,
Temp. Coefficient (-10 to +85°C)
50
PPM
FAN2103EM
Temp. Coefficient (-40 to +85°C)
70
PPM
Error Amplifier
DC Gain
(2)
80
85
dB
Gain Bandwidth Product
(2)
12
15
MHz
Output Voltage (VCOMP)
VCC = 5V
0.4
3.2
V
Output Current, Sourcing
VCC = 5V, VCOMP = 2.2V
1.5
2.2
mA
Output Current, Sinking
VCC = 5V, VCOMP = 1.2V
0.8
1.2
mA
FB Bias Current
VFB = 0.8V, 25°C
-850
-650
-450
nA
Protection and Shutdown
Current Limit
RILIM open
3.8
5.0
7.0
A
ILIM Current
25°C, VCC = 5V
9
10
11
µA
Over-Temperature Shutdown
160
°C
Over-Temperature Hysteresis
Internal Temperature
30
°C
Over-Voltage Threshold
2 Consecutive Clock Cycles
110
115
120
%VOUT
Under-Voltage Shutdown
16 Consecutive Clock Cycles
68
73
78
%VOUT
Fault Discharge Threshold
Measured at FB Pin
250
mV
Fault Discharge Hysteresis
Measured at FB Pin (VFB ~500mV)
250
mV
Note:
2.
Specifications guaranteed by design and characterization; not production tested.


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