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NCP5663 Low Output Voltage, Ultra-Fast 3.0 A Low Dropout Linear Regulator with Enable
The NCP5663 is a high performance, low dropout linear regulator designed for high power applications that require up to 3.0 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 NCP5663 also provides additional features such as Enable and Error Flag (for the fixed output version), increasing the utility of this device. A thermally robust, 5 pin D2Pak, combined with an architecture that offers low ground current (independent of load), provides for a superior high-current LDO solution.
Features http://onsemi.com MARKING DIAGRAM
1 5 D2PAK CASE 936AA 1
NC P5663DSy AWYYWWG
* * * * * * * * * * * * * * * * *
Ultra-Fast Transient Response (Settling Time: 1-3 ms) Low Noise Without Bypass Capacitor (28 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 This is a Pb-Free Device Servers ASIC Power Supplies Post Regulation for Power Supplies Constant Current Source Networking Equipment Gaming and STB Modules
Tab = Ground Pin 1. Enable 2. Vin 3. Ground 4. Vout 5. Adj (adjustable output) 5. Error Flag (fixed output) y = A for Adjustable Version B for Fixed 1.5 V Version A = Assembly Location W = Wafer Lot Y = Year WW = Work Week G = Pb-Free
Applications
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet.
(c) Semiconductor Components Industries, LLC, 2005
1
June, 2005 - Rev. 2
Publication Order Number: NCP5663/D
NCP5663
PIN FUNCTION DESCRIPTION
Pin Adj/Fixed 1 2 3 4 5 5 Pin Name Enable Vin Ground Vout Adj (Adjustable Version) Error Flag (Fixed Version) 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 This pin is connected to the resistor divider network and programs the output voltage. 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.
ABSOLUTE MAXIMUM RATINGS
Rating Input Voltage Output Pin Voltage Adjust Pin Voltage Enable Pin Voltage Error Flag Voltage Error Flag Current Thermal Characteristics Thermal Resistance Junction-to-Air Thermal Resistance Junction-to-Case Operating Junction Temperature Range Storage Temperature Range Symbol Vin Vout Vadj Ven Vef Ief RJA RJC TJ Tstg Value 18 -0.3 to Vin +0.3 -0.3 to Vin +0.3 -0.3 to Vin +0.3 -0.3 to Vin +0.3 3.0 45 5.0 -40 to +150 -55 to +150 C C Unit V V V V V mA C/W
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 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 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 30 W for D2PAK. For open-circuit to short-circuit transient, PDTransient = VCCmax * ISC.
qJA
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NCP5663
ELECTRICAL CHARACTERISTICS
(Vin - Vout = 1.5 V, for typical values TJ = 25C, for min/max values TJ = -40C to 85C, Cin = Cout = 150 mF unless otherwise noted.) Characteristic ADJUSTABLE OUTPUT VERSION Input Voltage Output Noise Voltage Output Voltage Accuracy TJ = 25C (Vin = Vout +1.5 V to 7.0 V, Iout = 10 mA to 3.0 A) TJ = -20 to +125C (Vin = Vout +1.5 V to 7.0 V, Iout = 10 mA to 3.0 A) TJ = -40 to +150C (Vin = Vout +1.5 V to 7.0 V, Iout = 10 mA to 3.0 A) Adjustable Pin Input Current Line Regulation (Iout = 10 mA, Vout+1.5 V < Vin < 7.0 V) Load Regulation (10 mA < Iout < 3.0 A) Dropout Voltage (Iout = 3.0 A) Peak Output Current Limit Internal Current Limitation Ripple Rejection (120 Hz) Ripple Rejection (1 kHz) Thermal Shutdown (Guaranteed by Design) Ground Current Iout = 3.0 A Disabled State Enable Input Threshold Voltage Voltage Increasing, On state, Logic High Voltage Decreasing, Off state, Logic Low Enable Input Current Enable Pin Voltage = 0.3 Vmax Enable Pin Voltage = 1.3 Vmin Ien - - 0.5 0.5 - - mA Iq Iqds Ven 1.3 - - - - 0.3 - - 1.3 10 3.0 300 mA mA V Vin Vn Vout -1% -1.5% -2% Iadj REGline REGload VDO Iout Ilim RR TSHD - - - - 3.0 - - - - - 0.9 - 40 0.03 0.03 1.0 - 4.5 70 65 160 +1% +1.5% +2% - - - 1.3 - - - - - nA % % V A A dB C 2.0 - - 28 9.0 - V mVrms V Symbol Min Typ Max Unit
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NCP5663
ELECTRICAL CHARACTERISTICS
(Vin - Vout = 1.5 V, for typical values TJ = 25C, for min/max values TJ = -40C to 85C, Cin = Cout = 150 mF unless otherwise noted.) Characteristic FIXED OUTPUT VOLTAGE Input Voltage Output Noise Voltage (Vout = 0.9 V) Output Voltage Accuracy (Note 1) TJ = 25C (Vin = Vout +1.5 V to 7.0 V, Iout = 10 mA to 3.0 A) TJ = -20 to +125C (Vin = Vout +1.5 V to 7.0 V, Iout = 10 mA to 3.0 A) TJ = -40 to +150C (Vin = Vout +1.5 V to 7.0 V, Iout = 10 mA to 3.0 A) Line Regulation (Iout = 10 mA, Vout+1.5 V < Vin < 7.0 V) Load Regulation (10 mA < Iout < 3.0 A) Dropout Voltage (Iout = 3.0 A) Peak Output Current Limit Internal Current Limitation Ripple Rejection (120 Hz) Ripple Rejection (1 kHz) Thermal Shutdown (Guaranteed by Design) Ground Current Iout = 3.0 A Disabled State Enable Input Threshold Voltage Voltage Increasing, On state, Logic High Voltage Decreasing, Off state, Logic Low Enable Input Current Enable Pin Voltage = 0.3 Vmax Enable Pin Voltage = 1.3 Vmin Error Flag (Fixed Output) Error Flag Output Low Voltage Saturation (Ief = 1.0 mA) Error Flag Leakage Error Flag Blanking Time (Note 2) Vcflt Vcfdo Iefleak Tef Ien - - 91 - - - 0.5 0.5 94 200 1.0 50 - - 97 - - - mA % of Vout mV mA ms Iq Iqds Ven 1.3 - - - - 0.3 - - 1.3 30 3.0 300 mA mA V Vin Vn Vout -1% -1.5% -2% REGline REGload VDO Iout Ilim RR TSHD - - - 3.0 - - - - - Vout - 0.03 0.2 1.0 - 4.5 70 65 160 +1% +1.5% +2% - - 1.3 - - - - - % % V A A dB C 2.0 - - 28 9.0 - V mVrms V Symbol Min Typ Max Unit
1. Fixed output voltages available at 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V per request. 2. Can be disabled per customer request.
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NCP5663
Vin IN
ON Voltage Reference Block R3 Enable Block Vref = 0.9 V Output Stage EN OFF Vout Ck R1 R4 ADJ Cout R2
Cin
GND
R1 + R2
Vout *1 Vref
GND
Figure 1. Typical Schematic, Adjustable Output Version
Vin IN
ON Voltage Reference Block R3 Enable Block Vref = 0.9 V Output Stage R1 R4 Cout EN OFF Vout Cc Rflag
Cin
R2 Error Flag
EF
GND
GND
Figure 2. Typical Schematic, Fixed Output Version
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NCP5663
1.2 VDO, DROPOUT VOLTAGE (V) 1.0 Iout = 300 mA 0.8 0.6 0.4 0.2 0.0 -50 VDO, DROPOUT VOLTAGE (V) Iout = 3.0 A 1.30 1.20 1.10 1.00 0.90 0.80 0.70 Vout = 2.5 V Cin = 150 mF Cout = 10 to 150 mF TJ = 25C
-25
0
25
50
75
100
125
150
0
0.5
1.0
1.5
2.0
2.5
3.0
TJ, JUNCTION TEMPERATURE (C)
Iout, OUTPUT CURRENT (A)
Figure 1. Dropout Voltage vs. Temperature
2.5 IGND, GROUND CURRENT (mA) ISC, SHORT CIRCUIT LIMIT (A) 5.00 4.75 4.50 4.25 4.00 3.75 3.50 3.25 3.00 -50
Figure 2. Dropout Voltage vs. Output Current
2.0
1.5
1.0
Vin = 2.5 V Cin = 150 mF
0.5
0.0 -50
-25
0
25
50
75
100
125
150
-25
0
25
50
75
100
125
150
TJ, JUNCTION TEMPERATURE (C)
TJ, JUNCTION TEMPERATURE (C)
Figure 3. Ground Current vs. Temperature
910 Vout, OUTPUT VOLTAGE (mV) Iout = 10 mA Cin = 150 mF Cout = 1.0 to 150 mF TJ = 25C Vout, OUTPUT VOLTAGE (mV) 908 906 904 902 900 898 896 894 892 890 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 910 908 906 904 902 900 898 896 894 892 890 0
Figure 4. Short Circuit Current Limit vs. Temperature
Vin = 3.3 V Iout = 3.0 A maximum Cin = 150 mF Cout = 1.0 to 150 mF TJ = 25C
0.5
1.0
1.5
2.0
2.5
3.0
Vin, INPUT VOLTAGE (V)
Iout, OUTPUT CURRENT (A)
Figure 5. Output Voltage vs. Input Voltage
Figure 6. Output Voltage vs. Output Load Current
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NCP5663
1.2 1.0 OUTPUT CURRENT (A) 0.8 0.6 0.4 0.2 0.0 0 2 4 6 8 10 12 14 16 20 INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V) RR, RIPPLE REJECTION (dB) TA = 25C L = 25 mm Copper
90 80 70 60 50 40 30 20 10 0 0
Vin = 2.5 V Vout = 0.9 V Cin = 100 nF Cout = 1.0 mF TJ = 25C Iout = 1.0 A Iout = 10 mA
1.0
10 100 F, FREQUENCY (kHz)
1000
Figure 7. Output Current vs. Input-Output Voltage Differential
100
Hz) Hz)
Figure 8. Ripple Rejection vs. Frequency
100 90 80 70 60 50 40 30 20 10 0 Start 1.0 kHz
F, FREQUENCY (kHz) Vin = 3.3 V Vout = 0.9 V Iout = 3.0 A Cin = 150 mF Cout = 1.0 mF TJ = 25C
90 80 70 60 50 40 30 20 10 0 Stop 200 kHz
Vin = 3.3 V Vout = 0.9 V Iout = 10 mA Cin = 150 mF Cout = 150 nF TJ = 25C
NOISE DENSITY (nVrms/
NOISE DENSITY (nVrms/
Start 1.0 kHz
F, FREQUENCY (kHz)
Stop 500 kHz
Figure 9. Noise Density vs. Frequency
Figure 10. Noise Density vs. Frequency
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NCP5663
Vin = 3.3 V Vout = 0.9 V Cin = 150 mF Cout = 150 mF TA = 25C
Vout 20 mV/Div
Vin = 3.3 V Vout = 0.9 V Cin = 150 mF Cout = 150 mF TA = 25C Iout = 10 mA to 3.0 A TIME (1.0 ms/Div)
Iout 1.0 A/Div
Iout 1.0 A/Div
Vout 20 mV/Div
Iout = 3.0 A to 10 mA
TIME (1.0 ms/Div)
Figure 11. Load Transient Response
Figure 12. Load Transient Response
Vin = 3.3 V Vout = 0.9 V Cin = 150 mF Cout = 150 mF TA = 25C
Vout 20 mV/Div
Iout 1.0 A/Div
Iout 1.0 A/Div
Iout = 10 mA to 3.0 A
Vin = 3.3 V Vout = 0.9 V Cin = 150 mF Cout = 150 mF TA = 25C
Vout 20 mV/Div
Iout = 3.0 A to 10 mA
TIME (100 ns/Div)
TIME (100 ns/Div)
Figure 13. Load Transient Response
Figure 14. Load Transient Response
Vout 20 mV/Div
Vin = 3.3 V Vout = 0.9 V Cin = 150 mF Cout = 10 mF TA = 25C
Vin = 3.3 V Vout = 0.9 V Cin = 150 mF Cout = 10 mF TA = 25C
Iout 1.0 A/Div
Iout 1.0 A/Div
Vout 20 mV/Div
Iout = 10 mA to 3.0 A TIME (500 ns/Div)
Iout = 3.0 A to 10 mA
TIME (5.0 ms/Div)
Figure 15. Load Transient Response
Figure 16. Load Transient Response
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NCP5663
APPLICATION INFORMATION The NCP5663 is a high performance low dropout 3.0 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 NCP5663. 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.
Input Capacitor
close to the output pin and keep the leads short. This should help ensure ultra-fast transient response times.
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 adjustable pin current is typically 40 nA. A resistor divider network, R1 and R2, is calculated using the following formula:
R1 + R2 Current Limit Operation Vout *1 Vref
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 NCP5663. 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.
Output Capacitor
As the peak output current increases beyond its limitation, the device is internally clampled to 4.5 A, thus causing the output voltage to decrease and go out of regulation. This allows the device never to exceed the maximum power dissipation.
Error Flag Operation
Proper output capacitor selection is required to maintain stability. The NCP5663 is stable for Cout as low as 10 mF (Figures 15 and 16) and guaranteed to be stable at an output capacitance of, Cout > 33 mF with an ESR < 300 mW over the output current range of 10 mA to 3.0 A. For PCB layout considerations, place the recommended ceramic capacitor
The Error Flag pin on the NCP5663 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 NCP5663 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.
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NCP5663
Figure 17. Test Board used for Evaluation
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NCP5663
ORDERING INFORMATION
Device NCP5663DSADJR4G NCP5663DS15R4G (Note 3) Nominal Output Voltage Adj (Pb-Free) Fixed, 1.5 V (Pb-Free) D2PAK Package Shipping 800 Tape & Reel 800 Tape & Reel
3. Fixed output voltages available at 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V per 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.
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NCP5663
PACKAGE DIMENSIONS
D2PAK 5-LEAD CASE 936AA-01 ISSUE B
A E K S B 12345 H W M L P G D 5 PL R -A- N
DIM A B C D E G H K L M N P R S U U1 V V1 W INCHES MIN MAX 0.396 0.406 0.330 0.340 0.170 0.180 0.026 0.035 0.045 0.055 0.067 BSC 0.539 0.579 0.055 0.066 0.000 0.010 0.098 0.108 0.017 0.023 0.058 0.078 0_ 8_ 0.095 0.105 0.296 0.304 0.265 0.272 0.296 0.300 0.040 0.044 0.010 MILLIMETERS MIN MAX 10.05 10.31 8.38 8.64 4.31 4.57 0.66 0.91 1.14 1.40 1.70 BSC 13.69 14.71 1.40 1.68 0.00 0.25 2.49 2.74 0.43 0.58 1.47 1.98 0_ 8_ 2.41 2.67 7.52 7.72 6.72 6.92 7.53 7.63 1.01 1.11 0.25
U U1 V1 V
NOTES: 1. DIMENSIONS AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. PACKAGE OUTLINE EXCLUSIVE OF MOLD FLASH AND METAL BURR. 4. PACKAGE OUTLINE EXCLUSIVE OF PLATING THICKNESS. 5. FOOT LENGTH MEASURED AT INTERCEPT POINT BETWEEN DATUM A AND LEAD SURFACE.
C
SOLDERING FOOTPRINT*
8.38 0.33 1.702 0.067 10.66 0.42 1.016 0.04
3.05 0.12 16.02 0.63
SCALE 3:1
mm inches
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. The product described herein (NCP5663), may be covered by one or more of the following U.S. patents: 5,920,184; 5,834,926. There may be other patents pending.
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. 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: N. American Technical Support: 800-282-9855 Toll Free Literature Distribution Center for ON Semiconductor USA/Canada P.O. Box 61312, Phoenix, Arizona 85082-1312 USA Phone: 480-829-7710 or 800-344-3860 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Fax: 480-829-7709 or 800-344-3867 Toll Free USA/Canada Phone: 81-3-5773-3850 Email: orderlit@onsemi.com ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative.
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NCP5663/D

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