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PDF FP6186 Data sheet ( Hoja de datos )
| Número de pieza | FP6186 | |
| Descripción | 1.4MHz Step-Down Converter | |
| Fabricantes | Feeling Technology | |
| Logotipo |  |
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2A, 23V, 1.4MHz Step-Down Converter
FP6186
General Description
The FP6186 is a buck regulator with a built-in internal power MOSFET. It can provide 2A
continuous output current over a wide input supply range with excellent load and line regulation.
Current mode operation provides fast transient response and eases loop stabilization. This device
includes cycle-by-cycle current limiting and thermal shutdown protection. Adjustable soft-start reduces
the stress on the input source at power-on. The regulator only consumes 25μA supply current in
shutdown mode. The FP6186 requires a minimum number of readily available external components to
complete a 2A buck regulator solution.
Features
¾ 2A Output Current
¾ Adjustable Soft-Start
¾ 0.2Ω Internal High Side Power MOSFET Switch
¾ Stable with Low ESR Output Ceramic Capacitors
¾ Up to 90% Efficiency
¾ 25μA Shutdown Mode Current
¾ Fixed 1.4MHz Frequency
¾ Thermal Shutdown
¾ Cycle-by-Cycle Over Current Protection
¾ Wide 4.75 to 23V Operating Input Range
¾ Output Adjustable From 0.92 to 16V
¾ Available MSOP-10L (EP) & SOP-8L (EP) Package
¾ Under Voltage Lockout
Applications
¾ Distributed Power Systems
¾ Battery Charger
¾ Pre-Regulator for Linear Regulators
¾ DSL Modems
Typical Application Circuit
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.6
1/17
1 page  
FP6186
Ordering Information
Part Number
Operating Temperature
FP6186g-G1
-40°C ~ +85°C
FP6186gR-G1
-40°C ~ +85°C
FP6186X-G1
-40°C ~ +85°C
FP6186XR-G1
-40°C ~ +85°C
Package
MSOP-10L (EP)
MSOP-10L (EP)
SOP-8L (EP)
SOP-8L (EP)
MOQ
80EA
2500EA
100EA
2500EA
Description
Tube
Tape & Reel
Tube
Tape & Reel
Absolute Maximum Ratings
Parameter
Symbol
Conditions
Supply Voltage
Supply Voltage
Bootstrap Voltage
All Other Pins
VIN
Vsw
VBS
Junction Temperature
TJ
Storage Temperature
TS
Thermal Resistance
SOP-8L (EP)
θJA MSOP-10L (EP)
SOP-8L (EP)
θJC MSOP-10L (EP)
Operating temperature
Lead Temperature (soldering, 10
sec)
SOP- 8L (EP)
Suggested IR Re-flow Soldering Curve
Min.
-0.3
-1
Vsw -0.3
-0.3
-65
-40
Typ.
Max.
24
VIN +0.3
Vsw +6
6
+150
+150
+60
+105
+10
+19
+85
+260
Unit
V
V
V
V
°C
℃
℃/W
℃/W
℃/W
℃/W
℃
℃
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.6
5/17
5 Page 
Application Information
FP6186
Input Capacitor Selection
The input current to the step-down converter is discontinuous, therefore a capacitor is required to
supply the AC current to the step-down converter while maintaining the DC input voltage. Use low ESR
capacitors for the best performance. Ceramic capacitors are preferred, but tantalum or low-ESR
electrolytic capacitors may also suffice.
The input capacitor can be electrolytic, tantalum or ceramic. When electrolytic or tantalum
capacitors are used, a small, high quality 0.1μF ceramic capacitor should be placed beside the IC as
possible.
When using ceramic capacitors, make sure that they have enough capacitance to provide
sufficient charge to prevent excessive voltage ripple at converter input. The input voltage ripple can be
estimated by
CIN
=
f
IO
× ΔVIN
× D(1 − D)
Inductor Selection
The inductor is required to supply constant current to the output load while being driven by the
switched input voltage. A larger value inductor will result in less ripple current that will result in lower
output ripple voltage. However, the larger value inductor will have a larger physical size, higher series
resistance, and/or lower saturation current. A good rule for determining the inductance to use is to
allow the peak-to-peak ripple current in the inductor to be approximately 30% of the maximum switch
current. Also, make sure that the peak inductor current is below the maximum switch current limit. The
inductance value can be calculated by
L
=
VO + VD
IO γf
× (1 − D)
Where r is the ripple current ratio
RMS current in inductor
ILrms = IO
1+
γ2
12
Output Capacitor Selection
The output capacitor is required to maintain the DC output voltage. Ceramic, tantalum, or low
ESR electrolytic capacitors are recommended. Low ESR capacitors are preferred to keep the output
voltage ripple low. The output voltage ripple can be estimated by:
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.6
11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet FP6186.PDF ] | |
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