XLSEMI. Datasheet. 2.1A 100KHz 90V Buck DC to DC Converter XL7056. Features. General Description. Applications

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1 Features Operation Voltage from 8V to 80V Maximum Duty Cycle up to 85% Minimum Drop Out.0V Adjust VOUT from.5v to 0V Max. IOUT=.A at VOUT=5V Max. IOUT=.A at VOUT=5V Fixed 00KHz Switching Frequency Max. Output power less than 0W Internal Optimize HV Power MOSFET High efficiency up to 93% Excellent line and load regulation Built in current limit function TO63-7L package General Description The XL7056 is a 00KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a.a load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 85%. Applications Ebike Controller Power Supply Telecom / Networking Equipment Figure. Package Type of XL7056

2 Pin Configurations TO63-7L CSP CSN Metal Tab Figure. Pin Configuration of XL7056 (Top View) Table Pin Description Pin Number Pin Name Description Ground Pin. Care must be taken in layout. This pin should be placed outside of the Schottky Diode to output capacitor ground path to prevent switching current spikes from inducing voltage noise into XL7056. Feedback Pin (). Through an external resistor divider network, Feedback senses the output voltage and regulates it. The feedback threshold voltage is.5v. 3 CSN Current Sense Negative Terminal. 4 Power Switch Output Pin (). Output is the switch node that supplies power to the output. The Metal is. 5 CSP Current Sense Positive Terminal. 6 Internal Voltage Regulator Bypass Capacity. In typical system application, The pin connect a uf capacitor to. 7 Supply Voltage Input Pin. XL7056 operates from 8V to 80V DC voltage. Bypass Vin to with a suitably large capacitor to eliminate noise on the input.

3 Function Block 75mV.5V Bias current & Voltage Reference Start Up UVLO EA EA COMP RS Latch and Driver CSP CSN OCS OCS Oscillator 00K/5K Figure3. Function Block Diagram of XL7056 Typical Application Circuit CSN CSP L 00uH/3A R Ω 0V~80V CIN 00uF /00V CC 05 XL7056 D FSV050 C COUT C 05 0uF 04 6 /6V VOUT 5V/0~.A R 0K R 3.3K CFF 33nF INPUT 0V~80V OUTPUT 5V/0~.A VOUT=.5*(+R/R) R3 for limit maximum output current, R3 choose 0.035ohm in VOUT 5V application; R3 choose 0.06ohm in VOUT>5V application. Figure4. XL7056 Typical Application Circuit 3

4 Ordering Information Order Information Marking ID Package Type Packing Type Supplied As XL7056E XL7056E TO63-7L 800 Units on Tape & Reel XLSEMI Pb-free products, as designated with E suffix in the par number, are RoHS compliant. Absolute Maximum Ratings(Note) Parameter Symbol Value Unit Pin Voltage V IN -0.3 to 90 V Pin Voltage V -0.3 to 5 V Pin Voltage V -0.3 to V Power Dissipation P D Internally limited mw Thermal Resistance (TO63-7L) (Junction to Ambient, No Heatsink, Free Air) R JA 30 ºC /W Maximum Junction Temperature T J -40 to 50 ºC Operating Junction Temperature T J -40 to 5 ºC Storage Temperature T STG -65 to 50 ºC Lead Temperature (Soldering, 0 sec) T LEAD 60 ºC ESD (HBM) >3000 V Note: Stresses greater than those listed under Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 4

5 XL7056 Electrical Characteristics T a = 5 ;unless otherwise specified. Symbol Parameter Test Condition Min. Typ. Max. Unit System parameters test circuit figure4 V ŋ ŋ ŋ ŋ ŋ Voltage Efficiency Efficiency Efficiency Efficiency Efficiency Vin =0V to 80V,Vout=5V Iload=0.5A Vin=4V, Vout=5V Iout=.A Vin=36V, Vout=5V Iout=.A Vin=48V, Vout=5V Iout=.A Vin=60V, Vout=5V Iout=.A Vin=7V, Vout=5V Iout=.A V % % % % % Electrical Characteristics (DC Parameters) Vin = 48V, =0V, Vin & parallel connect a 47uf/00V capacitor; Iout=0.A, T a = 5 ; the others floating unless otherwise specified. Parameters Symbol Test Condition Min. Typ. Max. Unit Input operation voltage Vin 80 V UVLO Vin_uvlo 6 V Quiescent Supply Current I q V =V. 5 ma Oscillator Frequency Fosc KHz Switch Current Limit I L V =0, R3=0.035Ω.3 A Output Power PMOS Rdson V IN =48V, I =.0A 60 mohm 5

6 Typical Performance Characteristics 5 Quiescent Supply Current VS Temperature Quiescent Supply Current(mA) 4 3 =48V Temperature( ) Figure5. Quiescent Current Curve 3.0 Feedback Voltage Change VS Temperature.5 Feedback Voltage Change(%) =48V,VOUT=5V,IOUT=0.A Normalized at TA= Temperature( ) Figure6. Feedback Voltage Curve 6

7 Typical System Application (VOUT=5V, IOUT=0~.A) CSN CSP L 00uH/A R3 0.06Ω 0V~80V CIN 00uF /00V CC 05 XL7056 D FSV050 C COUT C 05 00uF 04 6 /35V VOUT 5V/0~.A R 30K R.7K CFF 33nF INPUT 0V~80V OUTPUT 5V/0~.A VOUT=.5*(+R/R) Figure7. XL7056 System Application (=0V~80V, VOUT=5V, IOUT=0~.A) Efficiency(%) Efficiency VS Output current =4V,VOUT=5V,IOUT=0.A~.A =36V,VOUT=5V,IOUT=0.A~.A =48V,VOUT=5V,IOUT=0.A~.A =60V,VOUT=5V,IOUT=0.A~.A =7V,VOUT=5V,IOUT=0.A~.A Output current(a) Figure8. XL7056 System Application (Efficiency VS Output Current) 7

8 Typical System Application (VOUT=5V, IOUT=0~.A) CSN CSP L 00uH/3A R Ω 0V~80V CIN 00uF /00V CC 05 XL7056 D FSV050 C COUT C 05 0uF 04 6 /6V VOUT 5V/0~.A R 0K R 3.3K CFF 33nF INPUT 0V~80V OUTPUT 5V/0~.A VOUT=.5*(+R/R) Figure9. XL7056 System Application (=0V~80V, VOUT=5V, IOUT=0~.A) Efficiency(%) Efficiency VS Output current =V,VOUT=5V,IOUT=0.A~.A =4V,VOUT=5V,IOUT=0.A~.A =36V,VOUT=5V,IOUT=0.A~.A =48V,VOUT=5V,IOUT=0.A~.A =60V,VOUT=5V,IOUT=0.A~.A =7V,VOUT=5V,IOUT=0.A~.A Output current(a) Figure0. XL7056 System Application (Efficiency VS Output Current) 8

9 Typical System Application (VOUT=3.3V, IOUT=0~.A) CSN CSP L 00uH/3A R Ω 8V~80V CIN 00uF /00V CC 05 XL7056 D FSV050 R 3.7K C COUT C 05 0uF 04 6 /6V VOUT 3.3V/0~.A R 8.K CFF 33nF INPUT 8V~80V OUTPUT 3.3V/0~.A VOUT=.5*(+R/R) Figure. XL7056 System Application (=8V~80V, VOUT=3.3V, IOUT=0~.A) Efficiency(%) Efficiency VS Output current =V,VOUT=3.3V,IOUT=0.A~.A =4V,VOUT=3.3V,IOUT=0.A~.A =36V,VOUT=3.3V,IOUT=0.A~.A =48V,VOUT=3.3V,IOUT=0.A~.A =60V,VOUT=3.3V,IOUT=0.A~.A =7V,VOUT=3.3V,IOUT=0.A~.A Output current(a) Figure. XL7056 System Application (Efficiency VS Output Current) 9

10 Package Information Package Information (TO63-7L) E A H A D H B B e 字符 Dimensions In Millimeters Dimensions In Inches Min Max Min Max A A B B C D E e.7(bsc) 0.050(BSC) H H C 0

11 Important Notice XLSEMI reserve the right to make modifications, enhancements, improvements, corrections or other changes without notice at any time. XLSEMI does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. XLSEMI assumes no liability for applications assistance or the design of Buyers products. Buyers are responsible for their products and applications using XLSEMI components. To minimize the risks associated with Buyers products and applications, Buyers should provide adequate design and operating safeguards. XLSEMI warrants performance of its products to the specifications applicable at the time of sale, in accordance with the warranty in XLSEMI s terms and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent XLSEMI deems necessary to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed. For the latest product information, go to.