NCP5661, NCV5661 Low Output Voltage, Ultra-Fast 1.0 A Low Dropout Linear Regulator with Enable The NCP5661/NCV5661 is a high performance, low dropout linear regulator designed for high power applications that require up to 1.0 A current. It is offered in both fixed and adjustable output versions. With output voltages as low as 0.9 V and ultra−fast response times for load transients, the NCP5661/NCV5661 also provides additional features such as Enable and Error Flag (for the fixed output version), increasing the utility of these devices. A thermally robust, 5 pin DPAK or DFN 3x3.3 mm, combined with an architecture that offers low ground current (independent of load), provides for a superior high−current LDO solution. Features Ultra−Fast Transient Response (Settling Time: 1−3 ms) Low Noise Without Bypass Capacitor (26 mVrms) Low Ground Current Independent of Load (3.0 mA Maximum) Fixed/Adjustable Output Voltage Versions Enable Function Error Flag (Fixed Output Version) Current Limit Protection Thermal Protection 0.9 V Reference Voltage for Ultra−Low Output Operation Power Supply Rejection Ratio > 65 dB NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable These are Pb−Free Devices Applications Servers ASIC Power Supplies Post Regulation for Power Supplies Constant Current Source Networking Equipment Gaming and STB Modules http://onsemi.com MARKING DIAGRAMS 1 5 DPAK−5 CENTER LEAD CROP CASE 175AA NCP5661 NCV5661 5661xG ALYWW V5661xG ALYWW NCP5661 1 DFN6 MN SUFFIX CASE 506AX 1 661x AYWWG G NCV5661 1 V661 zzz AYWWG G x = A for Adjustable Version B for Fixed 1.2 V C for Fixed 3.3 V D for Fixed 1.5 V E for Fixed 1.8 V F for Fixed 2.5 V G for Fixed 2.8 V H for Fixed 3.0 V zzz = 12 for Fixed 1.2 V 15 for Fixed 1.5 V 18 for Fixed 1.8 V 25 for Fixed 2.5 V 28 for Fixed 2.8 V 30 for Fixed 3.0 V 33 for Fixed 3.3 V ADJ for Adjustable Version A = Assembly Location L = Wafer Lot Y = Year WW = Work Week G = Pb−Free G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. Semiconductor Components Industries, LLC, 2013 May, 2013 − Rev. 17 1 Publication Order Number: NCP5661/D NCP5661, NCV5661 PIN FUNCTION DESCRIPTION Pin Adj/Fixed DFN6 Pin Adj/Fixed DPAK−5 Pin Name 1 1 Enable 2,3 2 Vin 4, EPAD 3, TAB Ground 5 4 Vout 6 5 Adj (Adjustable Version) This pin is connected to the resistor divider network and programs the output voltage. 6 5 Error Flag (Fixed Version) An Error Flag is triggered when the output voltage is out of regulation excluding transient signals that may occur. Requires a pullup resistor f 100 kW. Description This pin allows for on/off control of the regulator. To disable the device, connect to Ground. If this function is not in use, connect to Vin. Positive Power Supply Input Voltage Power Supply Ground Regulated Output Voltage MAXIMUM RATINGS Rating Symbol Value Unit Input Voltage Vin 18 V Output Pin Voltage Vout −0.3 to Vin +0.3 V Adjust Pin Voltage Vadj −0.3 to Vin +0.3 V Enable Pin Voltage Ven −0.3 to Vin +0.3 V Error Flag Voltage Vef −0.3 to Vin +0.3 V Error Flag Current Ief 3.0 mA Thermal Characteristics, DPAK−5 (Note 1) Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case RJA RJC 100 8.0 Thermal Characteristics, DFN6 (Note 2) Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Lead (Note 3) RJA RJL 82 18 Operating Junction Temperature Range TJ −40 to +150 C Storage Temperature Range Tstg −55 to +150 C C/W C/W Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. NOTE: This device series contains ESD protection and exceeds the following tests: Human Body Model (HBM) JESD 22−A114−B Machine Model (MM) JESD 22−A115−A. The maximum package power dissipation is: *T T J(max) A P + D R qJA The bipolar process employed for this IC is fully characterized and rated for reliable 18 V VCCmax operation. To avoid damaging the part or degrading it’s reliability, power dissipation transients should be limited to under 20 W for DPAK. For open−circuit to short−circuit transient, PDTransient = VCCmax * ISC. 1. 1 oz copper, 0.26 in2 copper area (minimum pad) 2. 1 oz copper, 1 in2 copper area 3. Lead 2 http://onsemi.com 2 NCP5661, NCV5661 ELECTRICAL CHARACTERISTICS (Vin − Vout = 1.5 V, for typical values TJ = 25C, for min/max values TJ = −40C to 125C, Cin = Cout = 150 mF unless otherwise noted.) Symbol Min Typ Max Unit Input Voltage Vin 2.0 − 9.0 V Output Noise Voltage (f = 10 Hz to 100 kHz) Vn − 26 − mVrms −1% −1.5% −2% − 0.9 − +1% +1.5% +2% Characteristic ADJUSTABLE OUTPUT VERSION Output Voltage Accuracy TJ = 25C (Iout = 10 mA to 1.0 A) TJ = −20 to +125C (Iout = 10 mA to 1.0 A) TJ = −40 to +150C (Iout = 10 mA to 1.0 A) Vout Adjustable Pin Input Current Iadj − 40 − nA Line Regulation (Iout = 10 mA, Vout+1.5 V < Vin < 7.0 V) REGline − 0.03 − % Load Regulation (10 mA < Iout < 1.0 A) REGload − 0.03 − % Dropout Voltage (Iout = 1.0 A) VDO − 1.0 1.3 V Peak Output Current Limit Iout 1.0 − − A Internal Current Limitation Ilim − 1.5 − A Ripple Rejection (120 Hz) Ripple Rejection (1.0 kHz) RR − − 70 65 − − dB TSHD − 160 − C Iq Iqds − − 1.3 10 3.0 300 mA mA 1.3 − − − − 0.3 − − 0.5 0.5 − − Thermal Shutdown (Guaranteed by Design) Ground Current Iout = 1.0 A Disabled State Enable Input Threshold Voltage V Ven Voltage Increasing, On State, Logic High Voltage Decreasing, Off State, Logic Low Enable Input Current V Ien Enable Pin Voltage = 0.3 Vmax Enable Pin Voltage = 1.3 Vmin http://onsemi.com 3 mA NCP5661, NCV5661 ELECTRICAL CHARACTERISTICS (Vin − Vout = 1.5 V, for typical values TJ = 25C, for min/max values TJ = −40C to 125C, Cin = Cout = 150 mF unless otherwise noted.) Symbol Min Typ Max Unit Input Voltage Vin 2.0 − 9.0 V Output Noise Voltage (Vout = 0.9 V) Vn − 26 − mVrms −1% −1.5% −2% − Vout − +1% +1.5% +2% Characteristic FIXED OUTPUT VOLTAGE Output Voltage Accuracy TJ = 25C (Iout = 10 mA to 1.0 A) TJ = −20 to +125C (Iout = 10 mA to 1.0 A) TJ = −40 to +150C (Iout = 10 mA to 1.0 A) Vout V Line Regulation (Iout = 10 mA, Vout+1.5 V < Vin < 7.0 V) REGline − 0.03 − % Load Regulation (10 mA < Iout < 1.0 A) REGload − 0.2 − % Dropout Voltage (Iout = 1.0 A) VDO − 1.0 1.3 V Peak Output Current Limit Iout 1.0 − − A Internal Current Limitation Ilim − 1.5 − A Ripple Rejection (120 Hz) Ripple Rejection (1.0 kHz) RR − − 70 65 − − dB TSHD − 160 − C Iq Iqds − − 1.3 30 3.0 300 mA mA 1.3 − − − − 0.3 − − 0.5 0.5 − − 88 88 88 88 88 88 90 92 92 92 92 92 92 94 97 97 97 97 97 97 97 Thermal Shutdown (Guaranteed by Design) Ground Current Iout = 1.0 A Disabled State Enable Input Threshold Voltage Ven Voltage Increasing, On State, Logic High Voltage Decreasing, Off State, Logic Low Enable Input Current V Ien Enable Pin Voltage = 0.3 Vmax Enable Pin Voltage = 1.3 Vmin Error Flag (Fixed Output) 1.2 V Output 1.5 V Output 1.8 V Output 2.5 V Output 2.8 V Output 3.0 V Output 3.3 V Output Veflt mA % of Vout Error Flag Output Low Voltage Saturation (Ief = 1.0 mA) Vefdo − 200 − mV Error Flag Leakage Iefleak − 1.0 − mA Tef − 50 − ms Error Flag Blanking Time (Note 4) 4. Error Flag Blanking Time http://onsemi.com 4 NCP5661, NCV5661 Vin IN ON Cin EN Enable Block Voltage Reference Block OFF Vref = 0.9 V R3 Vout Output Stage ADJ R4 R1 CC * Cout R2 GND R1 + R2 ǒVVout * 1Ǔ ref GND *CC = 5.0 to 200 pF Figure 1. Typical Schematic, Adjustable Output Version Vin IN ON Cin Voltage Reference Block Enable Block Vref = 0.9 V R3 EN Rflag = 100 kW OFF Vout Output Stage Cc R1 Cout R4 R2 Error Flag GND GND Figure 2. Typical Schematic, Fixed Output Version http://onsemi.com 5 EF NCP5661, NCV5661 1.00 VDO, DROPOUT VOLTAGE (V) VDO, DROPOUT VOLTAGE (V) 1.2 1.0 0.8 0.6 0.4 0.2 0 −40 −20 0 20 40 60 80 100 120 TJ, JUNCTION TEMPERATURE (C) 0.95 0.90 0.85 0.80 Vout = 2.5 V Adjustable Cin = 150 mF Cout = 10 to 150 mF TJ = 25C 0.75 0.70 0.0 140 3.0 ISC, SHORT CIRCUIT LIMIT (A) IGND, GROUND CURRENT (mA) 0.4 0.5 0.6 0.7 0.8 0.9 1.0 2.0 2.5 2.0 1.5 1.0 0.5 −20 0 20 40 60 80 100 120 1.8 1.6 1.4 1.2 1.0 −40 140 TJ, JUNCTION TEMPERATURE (C) −20 0 20 40 60 80 100 120 140 TJ, JUNCTION TEMPERATURE (C) Figure 5. Ground Current vs. Temperature Figure 6. Short Circuit Current Limit vs. Temperature 0.95 0.900 Vout, OUTPUT VOLTAGE (V) Vout, OUTPUT VOLTAGE (V) 0.3 Figure 4. Dropout Voltage vs. Output Current 3.5 0.90 0.85 0.80 Iout = 10 mA Cin = 150 mF Cout = 1.0 to 150 mF TJ = 25C 0.75 0.70 1.0 0.2 Iout, OUTPUT CURRENT (A) Figure 3. Dropout Voltage vs. Temperature 0 −40 0.1 2.0 3.0 4.0 5.0 6.0 7.0 8.0 0.898 0.896 0.892 0.890 0.0 9.0 Vin, INPUT VOLTAGE (V) Figure 7. Output Voltage vs. Input Voltage Vin = 3.3 V Iout = 1.0 A maximum Cin = 150 mF Cout = 1.0 to 150 mF TJ = 25C 0.894 0.2 0.4 0.6 0.8 Iout, OUTPUT CURRENT (A) 1.0 Figure 8. Output Voltage vs. Output Load Current http://onsemi.com 6 NCP5661, NCV5661 0.9 90 OUTPUT CURRENT (A) 0.8 RR, RIPPLE REJECTION (dB) TA = 25C L = 25 mm Copper 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 80 70 Iout = 10 mA 60 50 40 Vin = 4.0 V Vout = 0.9 V Cin = 0 mF Cout = 1.0 mF TJ = 25C 30 20 10 0 0 2 4 6 8 10 12 14 16 20 0 1 10 INPUT−OUTPUT VOLTAGE DIFFERENTIAL (V) 90 90 NOISE DENSITY (nVrms/ǨHz) 100 80 70 60 Vin = 3.3 V Vout = 0.9 V Iout = 10 mA Cin = 150 mF Cout = 150 mF TJ = 25C 40 30 20 10 0 Start: 100 Hz 80 70 60 50 Vin = 3.3 V Vout = 0.9 V Iout = 1.0 A Cin = 150 mF Cout = 150 mF TJ = 25C 40 30 20 10 0 Stop: 100 kHz Start: 100 Hz Stop: 100 kHz F, FREQUENCY (kHz) F, FREQUENCY (kHz) Figure 11. Noise Density vs. Frequency Figure 12. Noise Density vs. Frequency 1000 1000 100 100 10 1.0 100 mF 150 mF 0.10 0.01 0 Unstable Unstable ESR (W) ESR (W) 150 mF 10 mF 1000 Figure 10. Ripple Rejection vs. Frequency 100 50 100 F, FREQUENCY (kHz) Figure 9. Output Current vs. Input−Output Voltage Differential NOISE DENSITY (nVrms/ǨHz) Iout = 1.0 A 10 100 mF 1.0 10 mF Stable 0.10 Stable 100 200 300 400 500 600 700 800 900 1000 0.01 0 100 200 300 400 500 600 700 800 900 1000 OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) Figure 13. 1.2 Volt Output Stability with Output Capacitor ESR Figure 14. 3.3 Volt Output Stability with Output Capacitor ESR http://onsemi.com 7 NCP5661, NCV5661 Iout = 10 mA to 1.0 A Iout 0.5 A/Div Iout 0.5 A/Div Vout 10 mV/Div Vout 10 mV/Div Vin = 4.0 V Vout = 0.9 V Cin = 150 mF Cout = 150 mF TJ = 25C Vin = 4.0 V Vout = 0.9 V Cin = 150 mF Cout = 150 mF TJ = 25C Iout = 1.0 A to 10 mA TIME (1.0 ms/Div) TIME (1.0 ms/Div) Figure 15. Load Transient Response Figure 16. Load Transient Response APPLICATION INFORMATION The NCP5661 is a high performance low dropout 1.0 A linear regulator suitable for high power applications, featuring an ultra−fast response time and low noise without a bypass capacitor. It is offered in both fixed and adjustable output versions with voltages as low as 0.9 V. Additional features, such as Enable and Error Flag (fixed output version) increase the utility of the NCP5661. It is thermally robust and includes the safety features necessary during a fault condition, which provide for an attractive high current LDO solution for server, ASIC power supplies, networking equipment applications, and many others. adjustable pin current is typically 40 nA. A resistor divider network, R1 and R2, is calculated using the following formula: R1 + R2 Input Cin ON OFF Enable ǒVVout * 1Ǔ ref Vout Vin NCP5661 EN Input Capacitor Vout = 0.9 V Output Cout ADJ GND The recommended input capacitor value is a 150 mF OSCON with an Equivalent Series Resistance (ESR) of 50 mW. It is especially required if the power source is located more than a few inches from the NCP5661. This capacitor will reduce device sensitivity and enhance the output transient response time. The PCB layout is very important and in order to obtain the optimal solution, the Vin and GND traces should be sufficiently wide to minimize noise and unstable operation. Figure 17. To achieve the minimum output voltage, ADJ to Vout has to be connected together Current Limit Operation As the peak output current increases beyond its limitation, the device is internally clampled to 1.5 A, thus causing the output voltage to decrease and go out of regulation. This allows the device never to exceed the maximum power dissipation. Output Capacitor Error Flag Operation Proper output capacitor selection is required to maintain stability. The NCP5661 is guaranteed to be stable at an output capacitance of, Cout > 10 mF with an ESR between 50 mW and 300 mW over the output current range of 10 mA to 1.0 A. For PCB layout considerations, place the recommended ceramic capacitor close to the output pin and keep the leads short. This should help ensure ultra−fast transient response times. The Error Flag pin on the NCP5661 will produce a logic Low when it drops below the nominal output voltage. Refer to the electrical characteristics for the threshold values at which point the Error Flag goes Low. When the NCP5661 is above the nominal output voltage, the Error Flag will remain at logic High. The external pullup resistor needs to be connected between Vin (Pin 1) and the Error Flag pin (Pin 5). A resistor of approximately 100 kW is recommended to minimize the current consumption. No pullup resistor is required if the Error Flag output is not being used. Adjustable Output Operation The application circuit for the adjustable output version is shown in Figure 1. The reference voltage is 0.9 V and the http://onsemi.com 8 NCP5661, NCV5661 390 340 qJA (C/W) 290 240 190 1 oz Copper 140 2 oz Copper 90 40 0 100 200 300 400 COPPER AREA 500 600 700 (mm2) Figure 18. DFN6 Thermal Resistance vs. Copper Area NCP5661 Evaluation Board Figure 19. Test Board used for Evaluation http://onsemi.com 9 NCP5661, NCV5661 ORDERING INFORMATION Device NCP5661DTADJRKG Nominal Output Voltage Fixed, 1.2 V (Pb−Free) NCP5661DT18RKG Fixed, 1.8 V (Pb−Free) NCP5661DT25RKG Fixed, 2.5 V (Pb−Free) NCP5661DT33RKG Fixed, 3.3 V (Pb−Free) DPAK 2500/Tape & Reel DFN6 3x3.3 mm 3000/Tape & Reel Adj (Pb−Free) NCV5661DT12RKG* Fixed, 1.2 V (Pb−Free) NCV5661DT18RKG* Fixed, 1.8 V (Pb−Free) NCV5661DT33RKG* Fixed, 3.3 V (Pb−Free) NCP5661MNADJT2G Adj (Pb−Free) NCP5661MN12T2G Fixed, 1.2 V (Pb−Free) NCP5661MN15T2G Fixed, 1.5 V (Pb−Free) NCP5661MN18T2G Fixed, 1.8 V (Pb−Free) NCP5661MN25T2G Fixed, 2.5 V (Pb−Free) NCP5661MN28T2G Fixed, 2.8 V (Pb−Free) NCP5661MN30T2G Fixed, 3.0 V (Pb−Free) NCP5661MN33T2G Fixed, 3.3 V (Pb−Free) NCV5661MNADJT2G* Shipping† Adj (Pb−Free) NCP5661DT12RKG NCV5661DTADJRKG* Package Adj (Pb−Free) NCV5661MN12T2G* Fixed, 1.2 V (Pb−Free) NCV5661MN15T2G* Fixed, 1.5 V (Pb−Free) NCV5661MN18T2G* Fixed, 1.8 V (Pb−Free) NCV5661MN25T2G* Fixed, 2.5 V (Pb−Free) NCV5661MN28T2G* Fixed, 2.8 V (Pb−Free) NCV5661MN30T2G* Fixed, 3.0 V (Pb−Free) NCV5661MN33T2G* Fixed, 3.3 V (Pb−Free) NOTE: Additional Fix output voltages are available upon request. †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable http://onsemi.com 10 NCP5661, NCV5661 PACKAGE DIMENSIONS DFN6 3x3.3 MM, 0.95 PITCH CASE 506AX ISSUE O A D PIN 1 REFERENCE 2X 0.15 C 2X ÇÇÇ ÇÇÇ ÇÇÇ ÇÇÇ 0.15 C NOTES: 1. DIMENSIONS AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 mm FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. B E DIM A A1 A3 b D D2 E E2 e K L L1 TOP VIEW 0.10 C A 6X 0.08 C (A3) SIDE VIEW D2 6X C A1 SEATING PLANE SOLDERING FOOTPRINT* 3.60 4X 1.35 e L 1 E2 6X L1 6 6X 0.50 1 K 3 MILLIMETERS MIN NOM MAX 0.80 −−− 0.90 0.00 −−− 0.05 0.20 REF 0.30 −−− 0.40 3.00 BSC 1.90 −−− 2.10 3.30 BSC 1.10 −−− 1.30 0.95 BSC 0.20 −−− −−− 0.40 −−− 0.60 0.00 −−− 0.15 2.15 0.95 PITCH 4 6X BOTTOM VIEW b 6X (NOTE 3) 0.83 DIMENSIONS: MILLIMETERS 0.10 C A B *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 0.05 C http://onsemi.com 11 NCP5661, NCV5661 PACKAGE DIMENSIONS DPAK−5 CENTER LEAD CROP CASE 175AA ISSUE A −T− C B V NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. SEATING PLANE E R R1 Z A S DIM A B C D E F G H J K L R R1 S U V Z 1 2 3 4 5 U K F J L H D G 5 PL 0.13 (0.005) M INCHES MIN MAX 0.235 0.245 0.250 0.265 0.086 0.094 0.020 0.028 0.018 0.023 0.024 0.032 0.180 BSC 0.034 0.040 0.018 0.023 0.102 0.114 0.045 BSC 0.170 0.190 0.185 0.210 0.025 0.040 0.020 −−− 0.035 0.050 0.155 0.170 MILLIMETERS MIN MAX 5.97 6.22 6.35 6.73 2.19 2.38 0.51 0.71 0.46 0.58 0.61 0.81 4.56 BSC 0.87 1.01 0.46 0.58 2.60 2.89 1.14 BSC 4.32 4.83 4.70 5.33 0.63 1.01 0.51 −−− 0.89 1.27 3.93 4.32 T SOLDERING FOOTPRINT* 6.4 0.252 2.2 0.086 0.34 5.36 0.013 0.217 5.8 0.228 10.6 0.417 0.8 0.031 SCALE 4:1 mm Ǔ ǒinches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5817−1050 http://onsemi.com 12 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP5661/D