Document
FP5209
Non-Synchronous PWM Boost Controller
General Description
The FP5209 is a boost topology switching regulator for wide operating voltage applications. It provides built-in gate driver pin, EXT pin, for driving the external N-MOSFET. The internal compensation network minimizes external component counts, and the non-inverting input of error amplifier connects to a 0.6V precision reference voltage. The FP5209 have internal soft start function. The FP5209 is available in the small footprint SOT23-5L package to fit in space-saving PCB layout for miscellaneous application fields.
Features
Wide Supply Voltage Operating Range: 2.4 to 5.5V Precision Feedback Reference Voltage: 0.6V (±2%) Shutdown Current: <1μA Internal Fixed PWM frequency: 550KHz Internal Soft Start Function :7ms (SS) Over Voltage Protection Package: SOT23-5L Duty Cycle: PWM/PFM Switching Control Circuit (15%~90%)
Applications
Chargers LCD Displays Digital Cameras Handheld Devices Portable Products
Typical Application Circuit
VIN VOUT
1 FB 2 Vcc 3 ON/OFF EN GND EXT
5
FP5209
4
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. 0.62
1/10
FP5209 Function Block Diagram
GND VCC EN
UVLO
Shutdown Circuitry
Error Amp.
FB
0.6V PWM Comp.
Control and Driver Logic
EXT
Soft Start
VRAMP
Oscillator
550KHz
Pin Descriptions
SOT23-5L
Top View
Name
FB Vcc EN
1 5
No. 1 2 3 4 5
I/O I P I P O
Description Error Amplifier Inverting Input IC Power Supply Enable Control (Active High) IC Ground External Transistor Connection Pin
EXT
AX986
FB Vcc EN GND
2
3
4
GND
EXT
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. 0.62
2/10
FP5209 Marking Information
SOT23-5L
AX986
Lot Number Year Part Number Code
Lot Number: Wafer lot number ’s last two digits
For Example: 132386TB 86
Year: Production year ’s last digit Part Number Code: Part number identification code for this product. It should be always “AX”.
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. 0.62
3/10
FP5209 Ordering Information
Part Number
FP5209KR-G1
Code
AX
Operating Temperature
-25°C ~ 85°C
Package
SOT23-5L
MOQ
3000EA
Description
Tape & Reel
Absolute Maximum Ratings
Parameter
Supply Voltage EN,FB Voltage Power Dissipation Thermal Resistance (Note1) Junction Temperature Operating Temperature Storage Temperature Lead Temperature PD θJA TJ TOP TST (soldering, 10 sec) -25 -65 SOT23-5L @TA=25°C SOT23-5L
Symbol
VCC
Conditions
Min.
0 0
Typ.
Max.
5.5 5.5 455 +220 +150 +85 +150 +260
Unit
V V mW °C / W °C °C °C °C
IR Re-flow Soldering Curve
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. 0.62
4/10
FP5209 Recommended Operating Conditions
Parameter
Supply Voltage Operating Temperature Range
Symbol
VIN TA
Conditions
Ambient Temperature
Min.
2.4 -25
Typ.
Max.
5.5 +85
Unit
V °C
DC Electrical Characteristics (VCC=3.3V, TA=25°C, unless otherwise specified)
Parameter
System Supply Input Input Supply Range Operating Start Voltage Under Voltage Lockout UVLO Hysteresis Quiescent Current Shutdown Current Oscillator Operation Frequency PFM Switching Duty Ratio Maximum Duty Ratio Soft-Start Time Reference Voltage Feedback Voltage Enable Control Enable Voltage Shutdown Voltage VEN VEN 0.96 0.6 V V VREF 0.588 0.6 0.612 V fOSC % % tSS VFB=0.6V 550 15 90 7 kHZ % % ms ICC ICC FB=1.0V, No switch VEN=GND VCC VST VUVLO 2.1 0.1 70 0.1 2.4 5.5 1.1 V V V V µA µA
Symbol
Conditions
Min.
Typ.
Max.
Unit
External Transistor Connection current EXT Pin Output Current EXT Pin Output Current IEXTH IEXTL -105 130 mA mA
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. 0.62
5/10
FP5209 Function Description
Operation
The FP5209 is a voltage mode boost controller..