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NCP502, NCP502A 80 mA CMOS Low Iq Voltage Regulator in an SC70-5
The NCP502/A series of fixed output linear regulators are designed for handheld communication equipment and portable battery powered applications which require low quiescent. The NCP502/A 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 NCP502/A 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 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 3.5 V, and 5.0 V. Other voltages are available in 100 mV steps.
Features http://onsemi.com MARKING DIAGRAM
5 4 1 23 SC70-5 SQ SUFFIX CASE 419A 5 | xxx M 1
xxx M
= Specific Device Code = Date Code
* * * * * * * * * * * *
Pb-Free Packages are Available Low Quiescent Current of 40 mA Typical Excellent Line and Load Regulation Low Output Voltage Option Output Voltage Accuracy of 2.0% Industrial Temperature Range of -40C to 85C NCP502: 1.3 V Enable Threshold High, 0.3 V Enable Threshold Low NCP502A: 1.0 V Enable Threshold High, 0.4 V Enable Threshold Low Cellular Phones Battery Powered Consumer Products Hand-Held Instruments Camcorders and Cameras
PIN CONNECTIONS
Vin GND Enable
1 2 3
5 Vout
4 N/C
Typical Applications
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet.
Battery or Unregulated Voltage
C1
+
1 2
5 + 4
Vout C2
ON OFF
3
This device contains 86 active transistors
Figure 1. Typical Application Diagram
Semiconductor Components Industries, LLC, 2005
January, 2005 - Rev. 9
1
Publication Order Number: NCP502/D
NCP502, NCP502A
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PIN FUNCTION DESCRIPTION
Pin No. 1 2 3 4 5 Pin Name Vin Description Positive power supply input voltage. Power supply ground. GND Enable N/C 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. No internal connection. Vout Regulated output voltage.
MAXIMUM RATINGS
Input Voltage
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Vin 12 V V V Enable Voltage Output Voltage Enable Vout -0.3 to Vin +0.3 -0.3 to Vin +0.3 Power Dissipation and Thermal Characteristics Power Dissipation Thermal Resistance, Junction to Ambient Operating Junction Temperature Operating Ambient Temperature Storage Temperature PD RqJA TJ TA Internally Limited 400 +125 W C/W C C C -40 to +85 Tstg -55 to +150 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. 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. Latchup capability (85C) "100 mA DC with trigger voltage.
Rating
Symbol
Value
Unit
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NCP502, NCP502A
ELECTRICAL CHARACTERISTICS (Vin = Vout(nom.) + 2.0 V, Venable = Vin, Cin = 1.0 mF, Cout = 1.0 mF, TJ = 25C, unless
Characteristic Output Voltage (TA = 25C, Iout = 10 mA) Vin = Vout (nom.) +1.0 V 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 3.0 V 3.3 V 3.5 V 5.0 V Output Voltage (TA = -40C to 85C, Iout = 10 mA) Vin = Vout (nom.) 1.5 V 1.8 V 2.5 V 2.7 V 2.8 V 3.0 V 3.3 V 3.5 V 5.0 V Line Regulation (Vin = Vout + 1.0 V to 12 V, Iout = 10 mA) Load Regulation (Iout = 1.0 mA to 80 mA) Output Current (Vout = (Vout at Iout = 80 mA) -3%) Dropout Voltage (TA = -40C to 85C, Iout = 80 mA, Measured at Vout -3.0%) 1.5 V-1.7 V 1.8 V-2.4 V 2.5 V-2.6 V 2.7 V-2.9 V 3.0 V-4.0 V 4.1 V-5.0 V Quiescent Current (Enable Input = 0 V) (Enable Input = Vin, Iout = 1.0 mA to Io(nom.)) Output Short Circuit Current (Vout = 0 V) Ripple Rejection (f = 1.0 kHz, 15 mA) Output Voltage Noise (f = 100 Hz to 100 kHz) Enable Input Threshold Voltage (NCP502) (Voltage Increasing, Output Turns On, Logic High) (Voltage Decreasing, Output Turns Off, Logic Low) Enable Input Threshold Voltage (NCP502A) (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 Min 1.455 1.746 2.425 2.646 2.744 2.94 3.234 3.43 4.900 1.455 1.746 2.425 2.619 2.716 2.910 3.201 3.43 4.900 - - 80 Typ 1.5 1.8 2.5 2.7 2.8 3.0 3.3 3.5 5.0 1.5 1.8 2.5 2.7 2.8 3.0 3.3 3.5 5.0 0.4 0.2 180 Max 1.545 1.854 2.575 2.754 2.856 3.06 3.366 3.57 5.100 V 1.545 1.854 2.575 2.781 2.884 3.09 3.399 3.57 5.100 3.0 0.8 - mV/V mV/mA mA mV - - - - - - IQ - - 90 - - 1.3 - 1.0 - - 1500 1300 1000 850 850 600 0.1 40 200 55 180 - - - - 100 1900 1700 1400 1300 1200 900 1.0 90 500 - - - 0.3 V - 0.4 - ppm/C mA Unit V
otherwise noted.)
Vout
Regline Regload Io(nom.) Vin-Vout
Iout(max) RR Vn Vth(en)
mA dB mVrms V
Vth(en)
TC
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NCP502, NCP502A
45 IQ, QUIESCENT CURRENT (mA) IQ, QUIESCENT CURRENT (mA) 40 35 30 25 20 15 10 5 0 0 1 2 3 4 5 6 7 VOUT = 3.0 V 45 42.5 40 37.5 35 32.5 30 -60 VIN = 5.0 V VOUT = 3.0 V
-40
-20
0
20
40
60
80
100
VIN, INPUT VOLTAGE (V)
T, TEMPERATURE (C)
Figure 2. Quiescent Current versus Input Voltage
Figure 3. Quiescent Current versus Temperature
VIN, INPUT VOLTAGE (V)
5 4 60 40 20 0 -20 -40 0 10 20 30 40 50
VIN = 4.0 V to 5.0 V
ENABLE VOLTAGE (V)
6
10 5 0 VIN = 4.0 V VENABLE = 0 to 4.0 V
OUTPUT VOLTAGE DEVIATION (mV)
COUT = 1.0 mF IOUT = 30 mA VOUT, OUTPUT VOLTAGE (V)
3.0 2.0 1.0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 IOUT = 30 mA COUT = 1.0 mF
60
70
80
90
100
0.7
0.8
0.9 1.0
t, TIME (ms)
t, TIME (ms)
Figure 4. Line Transient Response
Figure 5. Enable Response
IOUT, OUTPUT CURRENT (mA)
60 RIPPLE REJECTION (dB) 30 0 100 COUT = 1.0 mF VOUT = 3.0 V VIN = 4.0 V
70
60 50 40 30 20 0.01 VIN = 4.5 V + 0.5 VP-P VOUT = 3.0 V IOUT = 30 mA COUT = 1.0 mF 0.1 1.0 FREQUENCY (kHz) 10 100
OUTPUT VOLTAGE DEVIATION (mV)
50 0 -50 0
-100
50
100
150
200
250
300
350
400
450
t, TIME (ms)
Figure 6. Load Transient Response
Figure 7. Ripple Rejection/Frequency
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NCP502, NCP502A
2.995 VOUT, OUTPUT VOLTAGE (V) 2.99 2.985 2.98 2.975 2.97 2.965 2.96 -60 -40 -20 0 20 40 60 80 100 VIN = 4.0 V IOUT = 10 mA VIN = 12 V VOUT, OUTPUT VOLTAGE (V) 3.5 3 2.5 2 1.5 1 0.5 0 0 1 2 3 4 5 6 T, TEMPERATURE (C) VIN, INPUT VOLTAGE (V) CIN = 1.0 mF COUT = 1.0 mF VENABLE = VIN
Figure 8. Output Voltage versus Temperature
Figure 9. Output Voltage versus Input Voltage
VIN - VOUT, DROPOUT VOLTAGE (mV)
1200 1000 80 mA LOAD 800 600 400 200 0 10 mA LOAD -50 -25 0 25 50 75 100 125 T, TEMPERATURE (C) 40 mA LOAD
Figure 10. Dropout Voltage versus Temperature
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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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NCP502, NCP502A
APPLICATIONS INFORMATION A typical application circuit for the NCP502/A series is shown in Figure 1, front page.
Input Decoupling (C1)
A 1.0 mF capacitor either ceramic or tantalum is recommended and should be connected close to the NCP502/A package. Higher values and lower ESR will improve the overall line transient response. If large line or load transients are not expected, then it is possible to operate the regulator without the use of a capacitor. TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K
Output Decoupling (C2)
chance to pick up noise or cause the regulator to malfunction. Set external components, especially the output capacitor, as close as possible to the circuit, and make leads as short as possible.
Thermal
The NCP502/A 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 devices. Larger values improve noise rejection and load regulation transient response. TDK capacitor: C2012X5R1C105K, C1608X5R1A105K, or C3216X7R1C105K
Enable Operation
As power across the NCP502/A 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 NCP502/A 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
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
If junction temperature is not allowed above the maximum 125C, then the NCP502/A can dissipate up to 250 mW @ 25C. The power dissipated by the NCP502/A can be calculated from the following equation:
Ptot + [Vin * Ignd (Iout)] ) [Vin * Vout] * Iout
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
If an 80 mA output current is needed then the ground current from the data sheet is 40 mA. For an NCP502/A (3.0 V), the maximum input voltage will then be 6.12 V.
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NCP502, NCP502A
ORDERING INFORMATION
Device NCP502SQ15T1 NCP502SQ18T1 NCP502SQ18T1G NCP502SQ25T1 NCP502SQ27T1 NCP502SQ28T1 NCP502SQ30T1 NCP502SQ33T1 NCP502SQ33T1G NCP502SQ35T1 NCP502SQ35T1G NCP502SQ50T1 NCP502ASQ15T1 NCP502ASQ18T1 NCP502ASQ25T1 NCP502ASQ27T1 NCP502ASQ28T1 NCP502ASQ30T1 NCP502ASQ33T1 NCP502ASQ35T1 NCP502ASQ50T1 Nominal Output Voltage 1.5 1.8 1.8 2.5 2.7 2.8 3.0 3.3 3.3 3.5 3.5 5.0 1.5 1.8 2.5 2.7 2.8 3.0 3.3 3.5 5.0 Marking LCC LCD LCD LCE LCF LCG LCH LCI LCI LGO LGO LCJ LGP LGQ LGR LGS LGT LGU LGV LGW LGX Package SC70-5 SC70-5 SC70-5 (Pb-Free) SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 (Pb-Free) SC70-5 SC70-5 (Pb-Free) SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 SC70-5 Shipping 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel 3000 / Tape & Reel
Additional voltages in 100 mV steps are available upon request by contacting your ON Semiconductor representative. 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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PACKAGE DIMENSIONS
SC70-5 SQ SUFFIX CASE 419A-02 ISSUE G
A G
5
4
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.
S
1 2 3
-B-
DIM A B C D G H J K N S
D 5 PL
0.2 (0.008)
M
B
M
N J C
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
H
K
SOLDERING FOOTPRINT*
0.50 0.0197
0.65 0.025 0.65 0.025
0.40 0.0157 1.9 0.0748
SCALE 20:1
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.
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NCP502, NCP502A
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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NCP502/D

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