Document
FP6183
2A ,23V ,210KHz, Step-Down Converter
General Description
The FP6183 is a buck regulator with a built in internal power MOSFET. It achieves 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. The device includes cycle-by-cycle current limiting and thermal shutdown protection. Adjustable soft-start reduced the stress on the input source at power-on. The regulator only consumes 23µA supply current in shutdown mode. The FP6183 requires a minimum number of readily available external components to complete a 2A buck regulator solution.
Features
2A Output Current 0.2Ω internal Power MOSFET Switch Stable with Low ESR Output Ceramic Capacitors Up to 95% Efficiency 23µA Shutdown Mode Current Fixed 210KHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Wide 4.75 to 23V Operating Input Range Output Adjustable From 1.23 to 18V Available SOP-8L Package
Under Voltage Lockout
Applications
Distributed Power Systems Battery Charger Pre-Regulator for Linear Regulators DSL Modems
Typical Application Circuit
VIN
IN BS EN
FP6183
SW
VOUT
FB GND COMP
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. 0.63
1/13
FP6183 Function Block Diagram
IN
Internal Regulator
1uA
Slope Compensation
Σ
Current Sense
5V
BS
EN
Enable Control
Oscillator 130/210KHz Control Logic
SW
UVLO
0.7V
Current Comparator
GND
1.8V
Frequency Foldback Comparator Error Amplifier
COMP
1.23V
FB
Pin Descriptions
SOP- 8L
Name
NC BS
8 7 6 5
No. I / O
1 2 3 4 5 6 7 8 O P O P I O I No Connection Bootstrap Supply Voltage Switch Ground Feedback Compensation Enable / UVLO
Description
Top View
NC BS IN SW
1 2 3 4
EN COMP FB GND
IN SW GND FB COMP EN
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
FP6183 9Fa-86L
Rev. 0.63
2/13
FP6183 Marking Information
FP6183 -
Halogen Free Lot Number Internal ID Per-Half Month Year
Halogen Free: Halogen free product indicator Lot Number: Wafer lot number’s last two digits
For Example: 132386TB 86
Internal ID: Internal Identification Code Per-Half Month: Production period indicated in half month time unit
For Example: January → A (Front Half Month), B (Last Half Month) February → C (Front Half Month), D (Last Half Month)
Year: Production year’s last digit
This datasheet contains new product information. Feeling Technology reserves the righ.