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Features
Precision Feedback Reference Voltage: 0.5V (2%) Wide Supply Voltage Operating Range: 3.6 to 20V Low Current Consumption: 3mA Internal Fixed Oscillator Frequency: 340KHz (Typ.) Internal Soft-Sta rt Function (SS) Short Circuit Shutdown and Auto Re-start function (ARSCP) Built-in P-MOSFET for 2A Loading Capability Over Current Protection Package: SOP-8L Typical Application Circuit
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Function Block Diagram Pin Descriptions SOP-8L VCC SS / SCP IN- FB LX LX GND GND FP6101 9Fa-86L Top View Name No. I / O Description VCC 1 P Power Supply (PMOS Source) SS / SCP 2 I Connecting with a Soft-start & ARSCP Timing Capacitor IN- 3 I Error Amplifier Inverting Input FB 4 O Error Amplifier Compensation Output GND 5 P IC Ground GND 6 P IC Ground LX 7 O PMOS High Current Output LX 8 O PMOS High Current Output
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Marking Information Halogen Free: Halogen free product indicator Lot Number: Wafer lot number’s last two digits For Example: 132386TB 86 Mass Production Version: Mass production mask version 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 ri ghts 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.
Ordering Information
Part Number Operating Temperature Package MOQ Description FP6101DR-LF -25°C ~ +85°C SOP-8L 2500 EA Tape & Reel Absolute Maximum Ratings Parameter Symbol Conditions Min. Typ. Max. Unit Power Supply Voltage V CC 21 V Output Source Current 3 A Error Amplifier Inverting Input -0.3 1.2 V Allowable Power Dissipation P D SOP-8L TA +25≦ °C 650 mW Junction to Ambient Thermal Resistance θJA +175 °C / W Junction to Case Thermal Resistance θJC +45 °C / W Operating Temperature -25 +85 °C HBM (Human Body Mode) 2 KV ESD Susceptibility MM (Machine Mode) 200 V Storage Temperature T S SOP-8L -55 +125 °C SOP-8L Lead Temperature (soldering, 10 sec) +260 °C Suggested IR Re-flow Soldering Curve
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage V CC 3.6 20 V Operating Temperature -25 85 °C Parameter Symbol Conditions Min. Typ. Max. Unit Reference Output Voltage V REF IN- connected to FB 0.490 0.5 0.510 V Input Regulation V △ REF V CC=3.6 to 20 V 2 12.5 mV TA= -25 to +25°C 1 2 % Output Voltage Change with Temperature V△ REF / VREF TA= +25 to +85°C 1 2 % Soft Start Section (S.S.) S.C.P. Source Current ISS V SS=0V -17 -12 -7 µA Soft Start Threshold Voltage VSST 0.9 1.0 1.1 V Short Circuit Protection Section (S.C.P .) S.C.P. Source Current I SCP V SCP= 0V -17 -12 -7 µA SCP Re-start / Hold Time TRE /THOLD VFB=0V 1/8 VSCP V FB>450mV 1.0 1.15 1.2 V S.C.P. Threshold Voltage VSB V FB<450mV 0.1 0.15 V Output Section Oscillation Frequency f 340 KHz Frequency Change with Voltage Δf / ΔV V CC=3.6V to 20V 5 % Frequency Change with Temperature Δf / ΔT TA = -25℃ to +85℃ 5 % Thermal Shutdown Section Thermal Shutdown Temperature +145 ℃ Idle Period Adjustment Section Maximum Duty Cycle T DUTY V IN=0.2V 90 % Total Device Section Average Supply Current I AVE 3.8 5 mA Output Section PMOS D-S Voltage V DSS V=0.1V -20 V PMOS Source Current I D -2 A VCC=5.0V,VIN=0V 70 150 PMOS On Resistance R DS(ON) VCC=10V,VIN=0V 42 90 mΩ Output Leakage Current IL 5 µA Over Current Protection Section PMOS OCP Current IOCP 3 A
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Parameter Symbol Conditions Min. Typ. Max. Unit Error Amplifier Section Input Bias Current I B -1.0 -0.2 1.0 μA Voltage Gain Av 100 V / V Frequency Bandwidth BW Av=0 dB 6 2 MHz Output voltage Swing Positive V POS V IN-=0.3V 0.78 0.87 V Output voltage Swing Negative V NEG V IN-=0.7V 0.05 0.2 V Output Source Current I SOURCE -45 -30 μA Output Sink Current I SINK VFB=500mV 30 45 μA
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Typical Operating Characteristics Supply Voltage VS Reference Output Voltage 0.497 0.498 0.499 0.5 0.501 0.502 0.503 0.504 0.505 0.506 3.6 6 10 12 15 17 20 Pow er Supply Voltage (V) Reference Output Voltage (V) Osci ll ator Frequency VS Power Suppl y Voltage 330 333 336 339 342 345 348 3.6 6 10 12 15 17 20 Pow er Suppl y V ol tage (V ) Oscillator Frequency (KHz ) Effci ency VS Output Current 79% 80% 81% 82% 83% 84% 85% 86% 87% 88% 89% 90% 91% 92% 93% 0.5 1 1.5 2 2.5 3 Output Current (A) Effciency (%) Pow er Supply V S OCP 0.5 1.5 2.5 3.5 4.5 5 5.5 7 9 12 15 18 20 Pow er Suppl y (V ) OCP(A) Reference Output Votlage VS Temperature 0.498 0.499 0.5 0.501 0.502 0.503 0.504 0.505 0.506 0.507 -25 ℃ 25 ℃ 45 ℃ 65 ℃ 85 ℃ 100 ℃ Temperature ( ℃ ) Reference Output Voltage (V) Osci l l ator Frequency V S Temperature 280 300 320 340 360 380 400 -25 ℃ 25 ℃ 45 ℃ 65 ℃ 85 ℃ 100 ℃ Temperature ( ℃ ) Oscillator Frequency (KHz) Output Load Regulation 0.5 1.5 2.5 3.5 4.5 5.5 00 . 5 11 . 5 22 . 5 3 Output Current (A) Output Voltage (V) OCP V S Tempature 0.5 1.5 2.5 3.5 4.5 -10 25 50 70 85 Tempature ( ℃ ) OCP (A) VCC=10V, VOUT=3.3V VCC=10V, VOUT=5.0V VCC=10V, VOUT=3.3V VCC=10V, VOUT=5.0V VCC=10V,VOUT=3.3V
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Timing Waveform OSC VSST S.S/ARSCP Soft Start Stage 3.6V VCC LX COMP 0.8V VARSCP ARSCP Charge Current THOLD Soft Start StageTRE Restart Timing Restart Timing VARSCP ARSCP Charge Current THOLD TRE ARSCP LX OSC CH1 LX CH2 SS / SCP CH3 VOUT CH1 LX CH2 SS / SCP CH3 VOUT
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Function Description Voltage Reference FP6101 includes a 1.25V reference generator. This reference voltage is divided by a resistive divider to provide a 0.5V precision reference voltage for the non-inverting terminal of error amplifier and a 1.0V threshold voltage for the SCP comparator. Error Amplifier The error amplifier compares a sample of t he DC-DC converter output voltage with the 0.5V reference (VREF) to generate an error signal for the PWM co mparator. Output voltage of the DC-DC converter is setting by the external resistor divider with following equation (see figure 1): REF OUT VR R1V 0.5V 36KΩ 500Ω VOUT T FP6101 Error Amplifier Figure 1 Error Amplifier with Feedback Resistor Divider Oscillator The fixed PWM frequency is generated by an internal RC oscillator. Its typical value is 340KHz.
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. The Soft Start function works after power on. The interval of S oft Start time is determined by a capacitor connected to SCP pin (pin 2). After Soft Start functi on finished, the internal Soft Start clamp voltage is setting high, but external SCP pin is discharged to low. Thus FP6101 turns on short circuit detection / protection function. The Soft Start time is: )F in(C07.0)Sec(Tss SCP When a heavy loading or short circuit condition make output voltage to drop too much, the error amplifier output (FB pin) will rise to very high. Once FB pin voltage exceeds VPOS (typ. 1.0V), the short circuit protection function is triggered. The output switching MOS will be turned off. The SCP capacitor will be charged until its potential exceeds SCP thresh old voltage (typ. 1.2V) and then discharged to low. The time of short circuit protection is: )F in(C09.0Isource CVV I CV)Sec(T SCPSCPStartSSTHSCP Restart timing of short circuit protection is: )Sec(T8)Sec(T REHOLD Thermal Protection When a heavy loading makes chip internal temperature exceeds 145 °C, the thermal protection function is triggered. The FP6101 turns off its output and starts Short Circuit Protection function. After the IC is cooled down to its internal temperature below 145 °C, it will turn on the output and execute Soft-Start function again. Over Current Protection When FP6101 senses driver current over 3A, it will initiate OCP function and enters ARSCP function. After current drops below 3A, FP6101 turns on the output and continues PWM operation.
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Typical Application FP6101 Basic DC-DC Regulator Circuit For example: The VIN power supply is 12V and the VOUT is designed for 3.3V / 2A solution. The output voltage equation is: V30.3V5.0K10 56K1VR R1V REF 1OUT
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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. Package Outline SOP-8L Note: 1. Package dimensions are in complian ce with JEDEC Outline: MS-012 AA. 2. Dimension “D” does not include molding flash, protrusions or gate burrs. 3. Dimension “E” does not include inter-lead flash, or protrusions. Symbols Min. (mm) Max. (mm) A 1.346 1.752 A1 0.101 0.254 A2 1.092 1.498 D 4.800 4.978 E 3.810 3.987 H 5.791 6.197 L 0.406 1.270 θ° 0° 8°