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FSP3170 Datasheet(PDF) 2 Page - Guangdong Kexin Industrial Co.,Ltd

Part # FSP3170
Description  WIDE INPUT 2A STEP DOWN CONVERTER
PDF  3 Pages
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Manufacturer  KEXIN [Guangdong Kexin Industrial Co.,Ltd]
Direct Link  http://www.kexin.com.cn/index.asp
Logo KEXIN - Guangdong Kexin Industrial Co.,Ltd

FSP3170 Datasheet(HTML) 2 Page - Guangdong Kexin Industrial Co.,Ltd

  FSP3170 Datasheet HTML 1Page - Guangdong Kexin Industrial Co.,Ltd FSP3170 Datasheet HTML 2Page - Guangdong Kexin Industrial Co.,Ltd FSP3170 Datasheet HTML 3Page - Guangdong Kexin Industrial Co.,Ltd  
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Parameter
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Input Voltage
VIN
VOUT = 5V, ILOAD = 0A to 1A
7
18
V
Feedback Voltage
VFB
4.75V ≤ VIN ≤ 20V, VCOMP = 1.5V
1.185
1.222
1.258
V
Saturation voltage of output
driver
VCEsat
VIN=12V ILOAD=1A
500
mV
SW Leakage
VEN = 0
0
10
µA
Current Limit
ILIMT
2.6
A
COMP to Current Limit
Transconductance
GCOMP
2.5
A/V
Error Amplifier
Transconductance
GEA
∆ICOMP = ±10µA
850
µA/V
Error Amplifier DC Gain
AVEA
350
V/V
Switching Frequency
fSW
350
400
470
kHz
Short Circuit Switching
Frequency
VFB = 0
50
kHz
Maximum Duty Cycle
DMAX
VFB = 1.1V
90
95
%
Minimum Duty Cycle
VFB = 1.4V
0
%
V COMP Pin Maximum
Switching Threshold
Duty cycle = 0%
0.35
V
Minimum Boost Voltage
Above Switch
I SW = 2A
1.8
2.7
V
Enable Threshold Voltage
Hysteresis = 0.1V
0.7
1
1.3
V
Enable Pull Up Current
Pin pulled up to 4.5V typically when
left unconnected
2
µA
Supply Current in Shutdown
VEN = 0
8
40
µA
IC Supply Current in
Operation
VEN = 3V, VFB = 1.4V
2.2
mA
Thermal Shutdown
Temperature
Hysteresis = 10°C
160
°C
Figure1. FSP3170 5V/2A Output Application
www.kexin.com.cn
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