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PDF FP6166ADgR-G1 Data sheet ( Hoja de datos )
| Número de pieza | FP6166ADgR-G1 | |
| Descripción | 1A Synchronous Step-Down Regulator | |
| Fabricantes | Feeling Technology | |
| Logotipo |  |
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FP6166
Dual 1.5MHz, 1A Synchronous Step-Down Regulator
General Description
The FP6166 is a high efficiency current mode dual synchronous buck PWM DC-DC regulator.
The internal generated 0.6V precision feedback reference voltage is designed for low output voltage.
Low RDS (ON) synchronous switch dramatically reduces conduction loss. To extend battery life for
portable application, 100% duty cycle is supported for low-dropout operation. Shutdown mode also
helps saving the current consumption. The FP6166 is packaged in MSOP-10L (EP) and DFN-10L (EP)
to reduce PCB space.
Features
Input Voltage Range: 2.5 to 5.5V
Adjustable Output Voltage From 0.6V to VIN
Precision Feedback Reference Voltage: 0.6V (±2%)
Output Current: 1A (Max.) each channel
Duty Cycle: 0~100%
Internal Fixed PWM Frequency: 1.5MHz
Low Quiescent Current: 190μA
No Schottky Diode Required
Built-in Soft Start
Current Mode Operation
Over temperature Protection
Package: MSOP-10L (EP), DFN-10L (EP)
Applications
Cellular Telephone
Wireless and DSL Modems
Digital Still Cameras
Portable Products
MP3 Players
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. 0.65
1/19
1 page  
FP6166
Ordering Information
Part Number
FP6166ADgR-G1
Operating Temperature
-40°C ~ +85°C
FP6166ADdR-G1
-40°C ~ +85°C
Package
MSOP-10L (EP)
DFN-10L (EP)
MOQ
3000EA
2500EA
Description
Tape & Reel
Tape & Reel
Absolute Maximum Ratings
Parameter
Symbol Conditions
Input Supply Voltage
VIN
RUN, VFB, SW Voltage
P-Channel Switch Source Current (DC)
N-Channel Switch Source Current (DC)
Peak SW Switch Sink and Source Current (AC)
Thermal Resistance (Junction to Ambient)
MSOP-10L
θJA
DFN-10L
Thermal Resistance (Junction to Case)
MSOP-10L
θJC DFN-10L
Operating Temperature
Junction Temperature
Storage temperature
Lead Temperature (soldering, 10 sec)
MSOP-10L
DFN-10L
Min.
-0.3
-0.3
-40
-65
Typ.
Max.
6
VIN
1
1
2
+70
+65
+10
+10
+85
+150
+150
+260
+260
Unit
V
V
A
A
A
°C / W
°C / W
°C / W
°C / W
°C
°C
°C
°C
°C
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. 0.65
5/19
5 Page 
Application Information
FP6166
Input capacitor Selection
The input capacitor must be connected to the VIN pin and GND pin of the FP6166 to maintain
steady input voltage and filter out the pulsing input current. The voltage rating of input capacitor must
be greater than maximum input voltage plus ripple voltage.
In switch mode, the input current is discontinuous in a buck converter. The source current of the
high-side MOSFET is a square wave. To prevent large voltage transients, a low ESR input capacitor
sized for the maximum RMS current must be used. The RMS value of input capacitor current can be
calculated by:
IRMS IO _ MAX
VO
VIN
1
VO
VIN
It can be seen that when VO is half of VIN, CIN is under the worst current stress. The worst current
stress on CIN is IO_MAX/2.
Inductor Selection
The value of the inductor is selected based on the desired ripple current. Large inductance gives
low inductor ripple current and small inductance result in high ripple current. However, the larger value
inductor has a larger physical size, higher series resistance, and/or lower saturation current. In
experience, the value is to allow the peak-to-peak ripple current in the inductor to be 10%~20%
maximum load current. The inductance value can be calculated by:
L
(VIN VO ) VO
f IL VIN
f
(VIN VO )
2 (10% ~ 20%)IO
VO
VIN
The inductor ripple current can be calculated by:
IL
VO
f L
1
VO
VIN
Choose an inductor that does not saturate under the worst-case load conditions, which is the
load current plus half the peak-to-peak inductor ripple current, even at the highest operating
temperature. The peak inductor current is:
IL _ PEAK IO
IL
2
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. 0.65
11/19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet FP6166ADgR-G1.PDF ] | |
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