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NCP512 80 mA CMOS Low Iq Voltage Regulator in an SC70-5
The NCP512 series of fixed output linear regulators are designed for handheld communication equipment and portable battery powered applications which require low quiescent. The NCP512 series features an ultra-low quiescent current of 40 mA. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, resistors for setting output voltage, current limit, and temperature limit protection circuits. The NCP512 has been designed to be used with low cost ceramic capacitors. The device is housed in the micro-miniature SC70-5 surface mount package. Standard voltage versions are 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3, and 5.0 V. Other voltages are available in 100 mV steps.
Features http://onsemi.com MARKING DIAGRAM
SC70-5/SC-88A/ SOT-353 SQ SUFFIX CASE 419A
5 1
xxxd
xxx = Specific Device Code d = Date Code
* * * * * * * * *
Low Quiescent Current of 40 mA Typical Low Dropout Voltage of 250 mV at 80 mA Low Output Voltage Option Output Voltage Accuracy of 2.0% Industrial Temperature Range of -40C to 85C Cellular Phones Battery Powered Consumer Products Hand-Held Instruments Camcorders and Cameras
PIN CONNECTIONS
Vin Gnd Enable 1 2 3 (Top View) 4 N/C 5 Vout
Typical Applications
ORDERING INFORMATION
Battery or Unregulated Voltage Vout C1 + 1 2 ON OFF This device contains 86 active transistors 3 4 5 + C2
See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet.
Figure 1. Typical Application Diagram
(c) Semiconductor Components Industries, LLC, 2003
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November, 2003 - Rev. 7
Publication Order Number: NCP512/D
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MAXIMUM RATINGS
Storage Temperature Operating Ambient Temperature Operating Junction Temperature Power Dissipation and Thermal Characteristics Power Dissipation Thermal Resistance, Junction to Ambient Output Voltage Enable Voltage Input Voltage 5 Vout Regulated output voltage. Rating Symbol Enable PD RqJA Vout Tstg Vin TA TJ Internally Limited 400 -0.3 to Vin +0.3 -0.3 to Vin +0.3 -55 to +150 -40 to +85 0 to 6.0 Value +125 W C/W Unit C C C V V V
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PIN FUNCTION DESCRIPTION
Pin No. 4 3 2 1 Pin Name Enable Gnd N/C Vin No internal connection. This input is used to place the device into low-power standby. When this input is pulled low, the device is disabled. If this function is not used, Enable should be connected to Vin. Power supply ground. Positive power supply input voltage.
1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL-STD-883, Method 3015 Machine Model Method 200 V 2. Latch-up capability (85C) "200 mA DC with trigger voltage.
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NCP512
2 Description
NCP512
ELECTRICAL CHARACTERISTICS (Vin = Vout(nom.) + 1.0 V, Venable = Vin, Cin = 1.0 mF, Cout = 1.0 mF, TJ = 25C, unless
otherwise noted.) Characteristic Output Voltage (TA = 25C, Iout = 10 mA) 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 3.0 V 3.1 V 3.3 V 5.0 V Output Voltage (TA = -40C to 85C, Iout = 10 mA) 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 3.0 V 3.1 V 3.3 V 5.0 V Line Regulation (Iout = 10 mA) 1.5 V-4.4 V (Vin = Vout(nom.) + 1.0 V to 6.0 V) 4.5 V-5.0 V (Vin = 5.5 V to 6.0 V) Load Regulation (Iout = 1.0 mA to 80 mA) Output Current (Vout = (Vout at Iout = 80 mA) -3%) 1.5 V-3.9 V (Vin = Vout(nom.) + 2.0 V) 4.0 V-5.0 V (Vin = 6.0 V) Dropout Voltage (TA = -40C to 85C, Iout = 80 mA, Measured at Vout -3.0%) 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 3.0 V 3.1 V 3.3 V 5.0 V Quiescent Current (TA = -40C to 85C) (Enable Input = 0 V) (Enable Input = Vin, Iout = 1.0 mA to Io(nom.)) Output Short Circuit Current (Vout = 0 V) 1.5 V-3.9 V (Vin = Vout(nom.) + 2.0 V) 4.0 V-5.0 V (Vin = 6.0 V) Output Voltage Noise (f = 100 Hz to 100 kHz) Iout = 30 mA, Cout = 1 mF Ripple Rejection (f = 1.0 kHz, 60 mA) Enable Input Threshold Voltage (Voltage Increasing, Output Turns On, Logic High) (Voltage Decreasing, Output Turns Off, Logic Low) Output Voltage Temperature Coefficient 3. Maximum package power dissipation limits must be observed. T *TA PD + J(max) RqJA 4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible. Symbol Vout 1.455 1.746 2.425 2.646 2.744 2.94 3.038 3.234 4.900 Vout 1.455 1.746 2.425 2.619 2.716 2.910 3.007 3.201 4.900 Regline - - Regload Io(nom.) 80 80 Vin-Vout - - - - - - - - IQ - - Iout(max) 150 150 Vn - RR Vth(en) 1.3 - TC - - - "100 - 0.3 - ppm/C - 180 50 - - dB V 250 250 400 400 mVrms 0.1 40 1.0 90 mA 450 350 220 200 200 180 170 160 120 550 450 300 300 300 300 300 300 300 mA 200 200 - - mV - 1.0 1.0 0.3 3.0 3.0 0.8 mV/mA mA 1.5 1.8 2.5 2.7 2.8 3.0 3.1 3.3 5.0 1.545 1.854 2.575 2.781 2.884 3.09 3.193 3.399 5.100 mV/V 1.5 1.8 2.5 2.7 2.8 3.0 3.1 3.3 5.0 1.545 1.854 2.575 2.754 2.856 3.06 3.162 3.366 5.100 V Min Typ Max Unit V
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NCP512
TYPICAL CHARACTERISTICS
300 NCP512SQ30 Vout, OUTPUT VOLTAGE (V) 250 Io = 80 mA 200 150 Io = 40 mA 100 50 0 -50 Io = 10 mA -25 0 25 50 75 100 125 3.015 3.010 3.005 3.000 2.995 2.990 2.985 -60 Vin = 4.0 V Vin = 6.0 V 3.020
Vin - Vout, DROPOUT VOLTAGE (mV)
-40
-20
0
20
40
60
80
100
TEMPERATURE (C)
TEMPERATURE (C)
Figure 2. Dropout Voltage vs. Temperature
Figure 3. Output Voltage vs. Temperature
48 Iq, QUIESCENT CURRENT (mA) Iq, QUIESCENT CURRENT (mA) Iout = 0 mA Vin = 4.0 V Vout = 3.0 V
60 50 40 30 20 10 0 0 Vout = 3.0 V Cin = 1.0 mF Cout = 1.0 mF TA = 25C
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44
42
40 -60
-40
-20
0
20
40
60
80
100
1
2
3
4
5
6
7
TEMPERATURE (C)
Vin INPUT VOLTAGE (V)
Figure 4. Quiescent Current vs. Temperature
60 Ignd, GROUND CURRENT (mA) 50 40 30 20 10 0 0 Vout = 3.0 V Cin = 1.0 mF Cout = 1.0 mF Iout = 30 mA TA = 25C 70 60 RIPPLE REJECTION (dB) 50 40 30 20 10 1 2 3 4 5 6 7
Figure 5. Quiescent Current vs. Input Voltage
Vin = 4.0 V Cout = 1.0 mF Iout = 30 mA
0 100
1000
10000 FREQUENCY (Hz)
100000
1000000
Vin INPUT VOLTAGE (V)
Figure 6. Ground Pin Current vs. Input Voltage
Figure 7. Ripple Rejection vs. Frequency
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NCP512
TYPICAL CHARACTERISTICS
7 OUTPUT VOLTAGE NOISE (mV/ Hz) 6 5 4 3 2 1 0 10 100 1000 10000 100000 Vin = 4.0 V Cout = 1.0 mF Iout = 30 mA Vin, INPUT VOLTAGE (V) 7 6 5 4 3 200 100 0 0 50 100 150 200 250 300 350 400 450 500 Cout = 1.0 mF Iout = 10 mA
1000000
OUTPUT VOLTAGE DEVIATION (mV)
-100 TIME (ms)
FREQUENCY (Hz)
Figure 8. Output Noise Density
Figure 9. Line Transient Response
Io, OUTPUT CURRENT (mA)
6 Vin, INPUT VOLTAGE (V) 60 mA 0 200 100 0 -100 -200 0 100 200 300 400 Iout = 1 mA to 60 mA Vin = 4.0 V Cin = 1.0 mF Cout = 1.0 mF 500 600 700 800 TIME (ms) 4 2 0 4 OUTPUT VOLTAGE (V) 3 2 1 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Iout = 10 mA Vin = 4.0 V Cin = 1.0 mF Cout = 1.0 mF
OUTPUT VOLTAGE DEVIATION (mV)
TIME (ms)
Figure 10. Load Transient Response
3.5 Vout, OUTPUT VOLTAGE (V) 3.0 2.5 2.0 1.5 1.0 0.5 0 0
Figure 11. Turn-on Response
1.0
2.0
3.0
4.0
5.0
6.0
Vin, INPUT VOLTAGE (V)
Figure 12. Output Voltage vs. Input Voltage
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NCP512
DEFINITIONS
Load Regulation Line Regulation
The change in output voltage for a change in output current at a constant temperature.
Dropout Voltage
The input/output differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 3.0% below its nominal. The junction temperature, load current, and minimum input supply requirements affect the dropout level.
Maximum Power Dissipation
The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse technique such that the average chip temperature is not significantly affected.
Line Transient Response
Typical over and undershoot response when input voltage is excited with a given slope.
Thermal Protection
The maximum total dissipation for which the regulator will operate within its specifications.
Quiescent Current
The quiescent current is the current which flows through the ground when the LDO operates without a load on its output: internal IC operation, bias, etc. When the LDO becomes loaded, this term is called the Ground current. It is actually the difference between the input current (measured through the LDO input pin) and the output current.
Internal thermal shutdown circuitry is provided to protect the integrated circuit in the event that the maximum junction temperature is exceeded. When activated at typically 160C, the regulator turns off. This feature is provided to prevent failures from accidental overheating.
Maximum Package Power Dissipation
The maximum power package dissipation is the power dissipation level at which the junction temperature reaches its maximum operating value, i.e. 125C. Depending on the ambient power dissipation and thus the maximum available output current.
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NCP512
APPLICATIONS INFORMATION A typical application circuit for the NCP512 series is shown in Figure 1, front page.
Input Decoupling (C1)
Set external components, especially the output capacitor, as close as possible to the circuit, and make leads as short as possible.
Thermal
A 1.0 mF capacitor either ceramic or tantalum is recommended and should be connected close to the NCP512 package. Higher values and lower ESR will improve the overall line transient response. TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K
Output Decoupling (C2)
The NCP512 is a stable regulator and does not require any specific Equivalent Series Resistance (ESR) or a minimum output current. Capacitors exhibiting ESRs ranging from a few mW up to 5.0 W can thus safely be used. The minimum decoupling value is 1.0 mF and can be augmented to fulfill stringent load transient requirements. The regulator accepts ceramic chip capacitors as well as tantalum capacitors. Larger values improve noise rejection and load regulation transient response. TDK capacitor: C2012X5R1C105K, C1608X5R1A105K, or C3216X7R1C105K
Enable Operation
As power across the NCP512 increases, it might become necessary to provide some thermal relief. The maximum power dissipation supported by the device is dependent upon board design and layout. Mounting pad configuration on the PCB, the board material and also the ambient temperature effect the rate of temperature rise for the part. This is stating that when the NCP512 has good thermal conductivity through the PCB, the junction temperature will be relatively low with high power dissipation applications. The maximum dissipation the package can handle is given by:
T *TA PD + J(max) RqJA
If junction temperature is not allowed above the maximum 125C, then the NCP512 can dissipate up to 250 mW @ 25C. The power dissipated by the NCP512 can be calculated from the following equation:
Ptot + [Vin * Ignd (Iout)] ) [Vin * Vout] * Iout
The enable pin will turn on the regulator when pulled high and turn off the regulator when pulled low. These limits of threshold are covered in the electrical specification section of this data sheet. If the enable is not used then the pin should be connected to Vin.
Hints
or
P ) Vout * Iout VinMAX + tot Ignd ) Iout
Please be sure the Vin and Gnd lines are sufficiently wide. When the impedance of these lines is high, there is a chance to pick up noise or cause the regulator to malfunction.
If an 80 mA output current is needed then the ground current from the data sheet is 40 mA. For an NCP512 (3.0 V), the maximum input voltage will then be 6.12 V.
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NCP512
MINIMUM RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS Surface mount board layout is a critical portion of the total design. The footprint for the semiconductor packages must be the correct size to insure proper solder connection interface between the board and the package. With the correct pad geometry, the packages will self align when subjected to a solder reflow process.
0.5 mm (min)
1.9 mm
SC70-5 (SC-88A/SOT-353)
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0.4 mm (min)
0.65 mm 0.65 mm
NCP512
ORDERING INFORMATION
Device NCP512SQ15T1 NCP512SQ18T1 NCP512SQ25T1 NCP512SQ27T1 NCP512SQ28T1 NCP512SQ30T1 NCP512SQ31T1 NCP512SQ33T1 NCP512SQ50T1 Nominal Output Voltage* 1.5 1.8 2.5 2.7 2.8 3.0 3.1 3.3 5.0 Marking LCK LCL LCM LCN LCO LCP LFO LCQ LCR Package Shipping
SC70-5 (SC-88A/SOT-353)
3000 Units/ 7 Tape & Reel
*Additional voltages in 100 mV steps are available upon request by contacting your ON Semiconductor representative.
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NCP512
PACKAGE DIMENSIONS
SC70-5/SC-88A/SOT-353 SQ SUFFIX CASE 419A-02 ISSUE G
A G
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. 419A-01 OBSOLETE. NEW STANDARD 419A-02. 4. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS, OR GATE BURRS. 4 INCHES MIN MAX 0.071 0.087 0.045 0.053 0.031 0.043 0.004 0.012 0.026 BSC --- 0.004 0.004 0.010 0.004 0.012 0.008 REF 0.079 0.087 MILLIMETERS MIN MAX 1.80 2.20 1.15 1.35 0.80 1.10 0.10 0.30 0.65 BSC --- 0.10 0.10 0.25 0.10 0.30 0.20 REF 2.00 2.20
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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: 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: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Phone: 81-3-5773-3850 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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NCP512/D

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