SY6103MAC

Application Note: SY6103 3A Fast-Response LDO Regulator Features SY6103 is a 3A current capacity and low drop out voltage regulator, which features very fast transient recovery from input voltage surges and output load current changes. SY6103 with fully protection includes over current limit, output short protection, over temperature operation. • High Current Capability:3A Over Full Temperature Range • Low Dropout Voltage of 480mV at Full Load 3A. • Extremely Fast Transient Response • Zero Current Shutdown Mode • Adjustable Output Voltage • Low Ground Current • Over Current Limit • Output Short Circuit Protection • Over Temperature Protection • Package: TO263-5/TO252-5 • RoHS Compliant and Halogen Free OO KO O General Description or W Ordering Information SY6103 □(□□)□ Note ------- rep are Package type TO263-5 TO252-5 lP Ordering Number SY6103MAC SY6103JBC dF Temperature Code Package Code Optional Spec Code de nti a Typical Applications VIN on fi 2 IN OUT VOUT 4 SY6103 .C CIN EN COUT FB 5 GND 3 R2 Figure1. Adjustable Output Regulator Sil erg yC orp 1 R1 AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 1 All Rights Reserved. SY6103 Pinout (top view) FB OUT GND IN EN 5 4 3 2 1 FB OUT GND IN EN OO KO O TAB TAB 5 4 3 2 1 TO263-5 (D2 Pak) TO252-5 (D-Pak) Pin Number EN 2 3, TAB 4 5 IN GND OUT FB Pin Description Enable (Input): Active-high CMOS compatible control input. Do not leave it floating. INPUT: Unregulated input, +3V to +18V maximum. GND: TAB is also connected internally to the IC’s ground. OUTPUT: The regulator output voltage. Feedback Voltage: 1.24V feedback from external resistor divider. R + R2 VOUT = 1.24  ( 1 ) R2 lP rep are dF Pin Name 1 or W ① Part Number Package type Top Mark SY6103MAC TO263-5 BIJxyz SY6103JBC TO252-5 BRYxyz Note① ： x=year code, y=week code, z= lot number code. de nti a Block Diagram Main FET Sil erg yC EN orp .C UVLO on fi IN ON/OFF OUT Short protection Output current limit Controller OTP + FB Soft start control VREF GND Figure2. Block Diagram AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 2 All Rights Reserved. SY6103 Absolute Maximum Ratings (Note 1) IN, EN, OUT, FB---------------------------------------------------------------------------------------------------------------- 19V Package Thermal Resistance (Note 2) TO263/TO252, θ JA ----------------------------------------------------------------------------- 24.5°C/W/26 °C/W OO KO O TO263/TO252, θ JC ---------------------------------------------------------------------------------- 1.4°C/W/1.2°C/W Junction Temperature Range -------------------------------------------------------------------------------------------- 150°C Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------------- 260°C Storage Temperature Range ------------------------------------------------------------------------------------- -65°C to 150°C Recommended Operating Conditions (Note 3) Electrical Characteristics rep are (VIN = 5V, VOUT=3.3V, IOUT = 100mA, TA = -40°C ~85°C.) Parameter Symbol Test Conditions General Input Voltage Input voltage UVLO Threshold UVLO Hysteresis VIN Soft Start Time Enable Input LogicHigh Voltage Enable Input LogicLow Voltage Current Limit Thermal Shutdown Temperature Thermal Shutdown Hysteresis Output short protection threshold Output Short Off Time IN Pin to OUT pin Leakage Current tSS V IN rising de nti a VUVLO_th VEN,H V IN= VOUT+1V on fi VEN,L orp THYS .C Ilimit TSD yC VFB,SHORT erg tshort_off EN=0,VIN-OUT=18V Line Regulation ΔVLNR Load Regulation ΔVLDR IOUT = 100mA, (VOUT + 1V) ≦ VIN ≦ 16V VIN = VOUT + 1V, 100mA ≦ IOUT ≦ 3A Sil Typical 3 2.4 2.5 Max Unit 18 V 2.7 V 200 2 mV 4 2.4 ms V 0.8 V 4 4.5 5 A 130 150 170 °C 20 40 50 °C 60 38 ILeakage AN_SY6103 Rev0.9A © 2021 Silergy Corp. Min lP VUVLO dF or W IN ------------------------------------------------------------------------------------------ -------- 3V to 18V EN, OUT, FB------------------------------------------------------------------------------------------------------------ 0V to 18V Junction Temperature Range ----------------------------------------------------------------------------------- -40°C to 125°C Ambient Temperature Range ------------------------------------------------------------------------------------ -40°C to 85°C %VREF ms 10 600 nA 0.1 0.5 % 0.2 1 % Silergy Corp. Confidential- Prepared for Customer Use Only 3 All Rights Reserved. SY6103 PSRR Frequency=100Hz, COUT=10µF (Note 4) Frequency=100kHz, COUT=10µF (Note 4) IC shutdown VREF FB Pin Bias Current IFB_Bias 240 350 480 700 mV 1.215 EN=0, FB pin floating 380 70 dB 30 1 5 µA 120 150 µA 2 4 mA 4 8 mA 1.24 1.265 V 50 nA on fi Reference Voltage de nti a Reference Voltage 175 OO KO O IOUT = 1.5A, VIN=VOUT+1V (Note 4) IOUT = 3A, VIN=VOUT+1V (Note 4) lP IGND 120 170 IOUT = 0, VIN=VOUT+1V Ground Current 24 80 rep are Ground Current 16 11 or W Power Supply Rejection VFB=1V, IOUT = 100mA, TO252 VFB=1V, IOUT = 750mA, TO252 VFB=1V, IOUT = 1.5A, TO252 VFB=1V, IOUT = 3A, TO252 dF ΔVDROP Dropout Voltage VFB=1V, IOUT = 100mA, TO263 VFB=1V, IOUT = 750mA, TO263 VFB=1V, IOUT = 1.5A, TO263 VFB=1V, IOUT = 3A, TO263 orp .C Note 1: Stresses beyond “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability. yC Note 2: θ JA was measured according to JESD51-2 and chip mounted on Silergy PCB. Exposed paddle of TO2635/TO252-5 is the case position for θ JC measurement. erg Note 3: The device is not guaranteed to function outside its operating conditions. Sil Note 4: Guaranteed by design. AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 4 All Rights Reserved. SY6103 Typical Performance Characteristics Dropout Voltage vs. Output Current Output Voltage vs. Input Voltage (VIN=VEN=5V, VFB=1.1V) (VIN=VEN, VFB=1.1V) 7 400 300 200 SY6103JBC SY6103MAC 5 4 3 2 1 0 0 0 0.5 1 1.5 2 2.5 3 3.5 0 Output Current (A) 1 2 3 4 5 IOUT=0.3A IOUT=3A 6 7 dF Input Voltage (V) Ground Current vs. Output Current Ground Current vs. Input Voltage (VIN=VEN, VOUT=4.2V) rep are (VIN=VEN=5V, VOUT=4.2V) 7 6 IOUT=0.3A IOUT=3.0A IOUT=1.5A 5 lP 4 3 2 0 0 0.5 1 1.5 2 2.5 orp Load Transient 3 .C Output Current (A) on fi 1 0.5V/div 5 4 3 2 1 0 5 7 9 11 13 15 17 19 Input Voltage (V) Load Transient (VIN=5V, VOUT=4.2V, CIN=COUT=10uF, IOUT=0~0.3A~0) VIN 2V/div VOUT 0.1V/div IOUT 0.2A/div erg VOUT yC (VIN=5V, VOUT=4.2V, CIN=COUT=10uF, IOUT=0.3A~3A~0.3A) 3.5 Ground Current (mA) 6 de nti a Ground Current (mA) or W 100 OO KO O 6 500 Output Voltage (V) Dropout Voltage (mV) 600 Sil IOUT 1A/div Time (20μs/div) AN_SY6103 Rev0.9A © 2021 Silergy Corp. Time (800μs/div) Silergy Corp. Confidential- Prepared for Customer Use Only 5 All Rights Reserved. SY6103 Line Transient Over Current (VIN=5V~6V~5V, CIN=COUT=10uF, IOUT=0.3A) (VIN=5V, CIN=COUT=10μF, OUT=1.4Ω to 0.42Ω to1.4Ω) VIN 2V/div IOUT 0.2A/div OO KO O 0.1V/div or W VOUT VOUT Time (800μs/div) dF Short Current 2A/div Time (100ms/div) Short Current (VIN=5V, CIN=COUT=10uF, IOUT=3A to short to 3A) rep are (VIN=5V, CIN=COUT=10uF, IOUT=0A to short to 0A) VOUT IOUT 1V/div VOUT 2V/div IOUT 5A/div IOUT .C Startup from EN on fi Time (20ms/div) 5A/div Time (10ms/div) Shutdown from EN (VIN=5V, CIN=COUT=10μF, IOUT=3A) orp (VIN=5V, CIN=COUT=10μF, IOUT=3A) 2V/div VEN 2V/div 2V/div IOUT 1A/div Sil VOUT erg yC VEN de nti a lP 2V/div Time (800μs/div) AN_SY6103 Rev0.9A © 2021 Silergy Corp. VOUT 2V/div IOUT 1A/div Time (20μs/div) Silergy Corp. Confidential- Prepared for Customer Use Only 6 All Rights Reserved. SY6103 VIN Startup from VIN Shutdown from VIN (VIN=5V, CIN=COUT=10μF, IOUT=3A) (VIN=5V, CIN=COUT=10μF, IOUT=3A) 2V/div IOUT 1A/div Time (800μs/div) IOUT 1A/div Power Supply Rejection Ratio (VIN=5V, VOUT=4.2V, IOUT=0.3A) 70 80 rep are 90 dF (VIN=5V, VOUT=4.2V, IOUT=1A) 80 70 Gain(dB) 60 Gain(dB) 2V/div Time (2ms/div) Power Supply Rejection Ratio 50 lP 40 de nti a 30 20 10 0 100 1.0k 10k 50 40 20 10 100 on fi 4.4 Output Voltage (V) 4.35 yC 4.3 4.25 erg 4.2 4.15 Sil 4.1 4.05 1.0M 100k (VIN=5V, VOUT=4.2V, CIN=COUT=10μF) orp 4.35 10k Load Regulation (VOUT=4.2V, CIN=COUT=10μF, IOUT=0.15A) 4.4 1.0k Frequency(Hz) .C Line Regulation 60 30 1.0M 100k Frequency(Hz) Output Voltage (V) VOUT OO KO O 2V/div 2V/div or W VOUT VIN 4.3 4.25 4.2 4.15 4.1 4.05 4 4 5 7 9 11 13 15 Input Voltage (V) AN_SY6103 Rev0.9A © 2021 Silergy Corp. 17 19 21 0 0.5 1 1.5 2 2.5 3 Output Current (A) Silergy Corp. Confidential- Prepared for Customer Use Only 7 All Rights Reserved. SY6103 Output Voltage vs. Temperature (VIN=5V, CIN=COUT=10μF, IOUT=no load) 1.6 4.4 1.4 4.35 1.2 1 0.8 0.6 0.4 4.3 4.25 4.2 4.15 4.1 4.05 0.2 0 4 2 4 6 8 10 12 14 16 18 -40 20 Input Voltage (V) 0 20 40 60 80 100 120 140 Temperature (°C) Dropout Voltage vs. Temperature dF Ground Current vs. Temperature (VIN=5V, VOUT=4.2V, CIN=COUT=10μF) (VIN=5V, VFB=1.1V, CIN=COUT=10μF) 800 7 5 lP 4 2 IOUT=0.3A IOUT=1.5A IOUT=3.0A 1 0 -20 0 20 40 60 80 120 140 IOUT=1.5A IOUT=3.0A 600 500 400 300 200 100 0 -40 -20 0 20 40 60 80 100 120 140 Temperature (°C) Sil erg yC orp .C Temperature (°C) 100 on fi -40 de nti a 3 Dropout Voltage (mV) rep are 700 6 Ground Current (mA) -20 or W 0 OO KO O Output Voltage (V) Shutdown Current (μA) Shutdown Current vs. Input Voltage AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 8 All Rights Reserved. SY6103 Dropout Voltage SY6103 has a very low dropout voltage due to its extra low RDS(ON) of the main PMOS determines the lowest usable supply . Operation Information SY6103 is a 3A current capacity and low dropout voltage regulator, which features very fast transient recovery from input voltage surges and output load current changes. SY6103 with fully protection includes over current limit, output short protection, over input voltage protection and over temperature operation. VDROPOUT=VIN－VOUT=RDS(ON)×IOUT OO KO O Over Current and Short Circuit Protection The minimum current limit of SY6103 is 4A. The device includes over current and short circuit protection. The current limitation circuit regulates the output current to its limitation threshold to protect IC from damage. Under over current or Input Capacitor CIN An input capacitance about 10μF is required between the device input pin and ground pin. A typical X5R or better grade ceramic capacitor with 25V rating is recommended in this application. This input capacitor must be located close to the device to assure input stability. A lower ESR capacitor allows the use of less capacitance, while higher ESR type requires more capacitance. yC OUT orp .C on fi or W dF rep are de nti a Output Voltage Setting Choose R2 and R3 to program the proper output voltage. To minimize the power consumption under light loads, it is desirable to choose large resistance values for both R2 and R3. A value of between 1kΩ and 1MΩ is highly recommended for both resistors. The complete equation for the output voltage is described as follows; R +R VOUT = 1.24  3 2 R2 Load Transient Considerations The SY6103 regulator IC integrates the compensation components to achieve good stability and fast transient responses. In some applications, adding a small ceramic capacitor in parallel with R1 may further speed up the load transient responses and is thus recommended for applications with large load transient step requirements. R3 The final operating junction temperature for any set of conditions can be estimated by the following thermal equation: PD(MAX)=(TJ(MAX)－TA)/θJA Where TJ(MAX) is the maximum junction temperature of die (125°C ) and TA is the maximum ambient temperature. No Load Stability The device will remain stable and in regulation with no external load. This is especially important in CMOS RAM keep-alive applications. AN_SY6103 Rev0.9A © 2021 Silergy Corp. PD=(VIN－VOUT)×IOUT+VIN×IGND R2 Sil erg FB GND Thermal Considerations The SY6103 can deliver a current of up to 3A over the full operating junction temperature range. However, the maximum output current must be derated at higher ambient temperature to ensure the junction temperature does not exceed 125°C. With all possible conditions, the junction temperature must be within the range specified under operating conditions. Power dissipation can be calculated based on the output current and the voltage drop across regulator. lP Output Capacitor COUT For transient stability, SY6103 is designed specifically to work with very small ceramic output capacitors. 2.2uF output capacitance can be used in this application. Higher capacitance values help to improve transient. The output capacitor’s ESR is critical because it forms a zero to provide phase lead which is required for loop stability. short circuit condition, the power loss of the IC is relative high. And that may trigger the thermal protection. Layout Design Good board layout practices must be used or instability can be induced because of ground loops and voltage drops, and large PCB copper area can improve the thermal performance. The input and output capacitors MUST be directly connected to the Silergy Corp. Confidential- Prepared for Customer Use Only 9 All Rights Reserved. SY6103 input, output, and ground pins of the device using traces which have no other currents flowing through them. The feedback loop formed by R1, R2 and the trace connecting to the FB pin and OUT must be minimize. The best way to do this is to layout CIN and COUT near the device with short traces to the VIN, VOUT, and ground pins. The regulator ground pin should be connected to the external circuit ground so that the regulator and its capacitors have a “single point ground. OO KO O Below is the recommended PCB Layout diagram: VOUT R2 R1 OUT GND GND dF GND or W FB rep are IN COUT CIN EN EN VIN de nti a lP R3 Sil erg yC orp .C on fi Figure3. PCB Layout Suggestion AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 10 All Rights Reserved. SY6103 rep are dF or W OO KO O TO263-5 Package Outline Drawing Bottom View Sil erg yC orp .C on fi de nti a lP Top View Side View Notes: Recommended PCB Layout (Reference only) All dimension in millimeter and exclude mold flash & metal burr. AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 11 All Rights Reserved. SY6103 rep are dF or W OO KO O TO252-5 Package Outline & PCB Layout Side View Sil erg yC orp .C on fi de nti a lP Top View Bottom View PCB layout (Recommended) Notes: 1，All dimension in MM and exclude mold flash & metal burr 2，Recommended PCB layout only for reference. AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 12 All Rights Reserved. SY6103 Taping & Reel Specification 1. Taping Orientation for Packages rep are Feeding direction dF or W OO KO O TO252-5, TO263-5 TO252-5 on fi Pocket pitch(mm) Reel size (Inch) Trailer length(mm) Leader length (mm) Qty per reel(pcs) 12 8 13" 400 400 800 8 13" 400 400 2500 erg TO263-5 Tape width (mm) Sil Package type yC orp .C Reel Size de nti a lP 2. Carrier Tape & Reel specification for packages 12 3. Others: NA AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 13 All Rights Reserved. SY6103 Revision History The revision history provided is for informational purpose only and is believed to be accurate, however, not warranted. Please make sure that you have the latest revision. Revision Change Jun.17, 2021 Revision 0.9A Update the package outline for TO252-5 (page12). Dec.27, 2017 Revision 0.9 Initial Release Sil erg yC orp .C on fi de nti a lP rep are dF or W OO KO O Date AN_SY6103 Rev0.9A © 2021 Silergy Corp. Silergy Corp. Confidential- Prepared for Customer Use Only 14 All Rights Reserved. SY6103 IMPORTANT NOTICE 1. Right to make changes. Silergy and its subsidiaries (hereafter Silergy) reserve the right to change any information published in this document, including but not limited to circuitry, specification and/or product design, manufacturing or descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products are sold subject to Silergy’s standard terms and conditions of sale. dF or W OO KO O 2. Applications. Application examples that are described herein for any of these products are for illustrative purposes only. Silergy makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Buyers are responsible for the design and operation of their applications and products using Silergy products. Silergy or its subsidiaries assume no liability for any application assistance or designs of customer products. It is customer’s sole responsibility to determine whether the Silergy product is suitable and fit for the customer’s applications and products planned. To minimize the risks associated with customer’s products and applications, customer should provide adequate design and operating safeguards. Customer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm and take appropriate remedial actions. Silergy assumes no liability related to any default, damage, costs or problem in the customer’s applications or products, or the application or use by customer’s third-party buyers. Customer will fully indemnify Silergy, its subsidiaries, and their representatives against any damages arising out of the use of any Silergy components in safety-critical applications. It is also buyers’ sole responsibility to warrant and guarantee that any intellectual property rights of a third party are not infringed upon when integrating Silergy products into any application. Silergy assumes no responsibility for any said applications or for any use of any circuitry other than circuitry entirely embodied in a Silergy product. lP rep are 3. Limited warranty and liability. Information furnished by Silergy in this document is believed to be accurate and reliable. However, Silergy makes no representation or warranty, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall Silergy be liable for any indirect, incidental, punitive, special or consequential damages, including but not limited to lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges, whether or not such damages are based on tort or negligence, warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, Silergy’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Standard Terms and Conditions of Sale of Silergy. on fi de nti a 4. Suitability for use. Customer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of Silergy components in its applications, notwithstanding any applications-related information or support that may be provided by Silergy. Silergy products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an Silergy product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Silergy assumes no liability for inclusion and/or use of Silergy products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. orp .C 5. Terms and conditions of commercial sale. Silergy products are sold subject to the standard terms and conditions of commercial sale, as published at http://www.silergy.com/stdterms, unless otherwise agreed in a valid written individual agreement specifically agreed to in writing by an authorized officer of Silergy. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Silergy hereby expressly objects to and denies the application of any customer’s general terms and conditions with regard to the purchase of Silergy products by the customer. Sil erg yC 6. No offer to sell or license. Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Silergy makes no representation or warranty that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right. Information published by Silergy regarding third-party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from Silergy under the patents or other intellectual property of Silergy. For more information, please visit: www.silergy.com © 2021 Silergy Corp. AN_SY6103 Rev0.9A © 2021 Silergy Corp. Powered by TCPDF (www.tcpdf.org) All Rights Reserved. Silergy Corp. Confidential- Prepared for Customer Use Only 15 All Rights Reserved.