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NCV4264-2 Low IQ Low Dropout Linear Regulator
The NCV4264-2 is functionally and pin for pin compatible with NCV4264 with a lower quiescent current consumption. Its output stage supplies 100 mA with "2.0% output voltage accuracy. Maximum dropout voltage is 500 mV at 100 mA load current. It is internally protected against 45 V input transients, input supply reversal, output overcurrent faults, and excess die temperature. No external components are required to enable these features.
Features
TAB 2
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SOT-223 ST SUFFIX CASE 318E 1 x A Y W G = 5 (5.0 V Version) = 3 (3.3 V Version) = Assembly Location = Year = Work Week = Pb-Free Package AYW 642xG G
* * * * * * *
* *
3.3 V and 5.0 V Fixed Output "2.0% Output Accuracy, Over Full Temperature Range 60 mA Maximum Quiescent Current at IOUT = 100 mA 500 mV Maximum Dropout Voltage at 100 mA Load Current Wide Input Voltage Operating Range of 4.5 V to 45 V AEC-Q100 Qualified Internal Fault Protection -42 V Reverse Voltage Short Circuit/Overcurrent Thermal Overload NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes This is a Pb-Free Device
1
3
(Note: Microdot may be in either location)
PIN CONNECTIONS
TAB
1 VIN GND VOUT (Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet.
(c) Semiconductor Components Industries, LLC, 2008
1
March, 2008 - Rev. 4
Publication Order Number: NCV4264-2/D
NCV4264-2
IN
OUT
1.3 V Reference
+ Error Amp -
Thermal Shutdown GND
Figure 1. Block Diagram PIN FUNCTION DESCRIPTION
Pin No. 1 2 3 TAB Symbol VIN GND VOUT GND Unregulated input voltage; 4.5 V to 45 V. Ground; substrate. Regulated output voltage; collector of the internal PNP pass transistor. Ground; substrate and best thermal connection to the die. Function
OPERATING RANGE
Rating VIN, DC Input Operating Voltage Junction Temperature Operating Range Symbol VIN TJ Min 4.5 -40 Max +45 +150 Unit V C
MAXIMUM RATINGS
Rating VIN, DC Input Voltage VOUT, DC Voltage Storage Temperature Moisture Sensitivity Level ESD Capability, Human Body Model (Note 1) ESD Capability, Machine Model (Note 1) Lead Temperature Soldering Reflow (SMD Styles Only), Lead Free (Note 2) Symbol VIN VOUT Tstg MSL VESDHB VESDMIM Tsld 265 pk 4000 200 Min -42 -0.3 -55 3 Max +45 +18 +150 Unit V V C V V C
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. 1. This device series incorporates ESD protection and is tested by the following methods: ESD HBM tested per AEC-Q100-002 (EIA/JESD22-A 114C) ESD MM tested per AEC-Q100-003 (EIA/JESD22-A 115C) 2. Lead Free, 60 sec - 150 sec above 217C, 40 sec max at peak.
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NCV4264-2
THERMAL RESISTANCE
Parameter Junction-to-Ambient Junction-to-Case SOT-223 SOT-223 Symbol RqJA RqJC Min Max 99 (Note 3) 17 Unit C/W
ELECTRICAL CHARACTERISTICS (VIN = 13.5 V, TJ = -40C to +150C, unless otherwise noted.)
Characteristic Output Voltage 5.0 V Version Output Voltage 3.3 V Version Output Voltage 5.0 V Version Symbol VOUT Test Conditions 5.0 mA v IOUT v 50 mA (Note 4) 9.0 V v VIN v 16 V 5.0 mA v IOUT v 50 mA (Note 4) 9.0 V v VIN v 16 V 0 mA v IOUT v 100 mA (Note 4) 5.5 V v VIN v 21 V -40C v TJ v 125C 5.0 mA v IOUT v 100 mA (Note 4) 6.0 V v VIN v 21 V 5.0 mA v IOUT v 100 mA (Note 4) 4.5 V v VIN v 21 V IOUT = 1.0 mA 6.0 V v VIN v 28 V IOUT = 1.0 mA 4.5 V v VIN v 28 V 1.0 mA v IOUT v 100 mA (Note 4) IOUT = 100 mA (Notes 4 & 5) IOUT = 100 mA (Notes 4 & 7) IOUT = 100 mA TJ = 25C TJ = -40C to +85C TJ = -40C to 150C IOUT = 50 mA (Note 4) VRIPPLE = 0.5 VP-P, F = 100 Hz IOUT = 0.1 mA to 100 mA (Notes 4) IOUT = 0.1 mA to 100 mA (Notes 4) Min 4.900 Typ 5.000 Max 5.100 Unit V
VOUT
3.234
3.300
3.366
V
VOUT
4.850
5.000
5.150
V
Output Voltage 5.0 V Version Output Voltage 3.3 V Version Line Regulation 5.0 V Version Line Regulation 3.3 V Version Load Regulation Dropout Voltage - 5.0 V Version Dropout Voltage - 3.3 V Version Quiescent Current
VOUT
4.850
5.000
5.150
V
VOUT DVOUT vs. VIN DVOUT vs. VIN DVOUT vs. IOUT VIN-VOUT VIN-VOUT Iq
3.201
3.300
3.399
V
-30 -30 -40 10 22 -
5.0 5.0 5.0 270 33 33 33 1.5 67 -
+30 +30 +40 500 1.299 55 60 70 4.0 9.0 16
mV mV mV mV V mA
Active Ground Current Power Supply Rejection Output Capacitor for Stability 5.0 V Version Output Capacitor for Stability 3.3 V Version PROTECTION Current Limit Short Circuit Current Limit Thermal Shutdown Threshold
IG(ON) PSRR COUT ESR COUT ESR
mA dB mF W mF W
IOUT(LIM) IOUT(SC) TTSD
VOUT = 4.5 V (5.0 V Version) (Note 4) VOUT = 3.0 V (3.3 V Version) (Note 4) VOUT = 0 V (Note 4) (Note 6)
150 150 40 150
-
500 500 500 200
mA mA C
3. 1 oz., 100 mm2 copper area. 4. Use pulse loading to limit power dissipation. 5. Dropout voltage = (VIN-VOUT), measured when the output voltage has dropped 100 mV relative to the nominal value obtained with VIN = 13.5 V. 6. Not tested in production. Limits are guaranteed by design. 7. VDO = VIN - VOUT. For output voltage set to < 4.5 V, VDO will be constrained by the minimum input voltage.
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NCV4264-2
4.5-45 V Input Cin 100 nF Vin Vout
1
4264-2 2
3
Output COUT 10 mF - 5.0 V Version 22 mF - 3.3 V Version
GND
Figure 2. Applications Circuit
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NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 5 V Version
10 9 8 7 ESR (W) 6 5 4 3 2 1 0 0 Stable Region 25 50 75 100 Vin = 13.5 V Cout 10 mF 125 150 Unstable Region
OUTPUT CURRENT (mA)
Figure 3. NCV4264-2 ESR Characterization (5 V Version)
12
125C QUIESCENT CURRENT (mA)
0.4
QUIESCENT CURRENT (mA)
10
25C
0.35 0.3 0.25 0.2 0.15 0.1 0.05 0
125C
25C -40C
8 6 4 2
-40C
VIN = 13.5 V
0 0 50 100
OUTPUT LOAD (mA)
VIN = 13.5 V
150
200
0
5
10
15
OUTPUT LOAD (mA)
Figure 4. Quiescent Current vs. Output Load (5 V Version)
Figure 5. Quiescent Current vs. Output Load (Light Load) (5 V Version)
0.45 0.40 DROPOUT VOLTAGE (V) 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 50 100 OUTPUT LOAD (mA) 150 200 25C -40C 125C OUTPUT VOLTAGE (V)
5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 -50
0
50 TEMPERATURE (C)
100
150
Figure 6. Dropout Voltage vs. Output Load (5 V Version)
Figure 7. Output Voltage vs. Temperature (5 V Version)
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NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 5 V Version
180 160 OUTPUT CURRENT (mA) 5.0 OUTPUT VOLTAGE (V) 140 120 100 80 60 40 20 0 0 10 20 30 40 50 INPUT VOLTAGE (V) TA = 125C TA = 25C 4.0 3.0 2.0 1.0 RL = 50 W 0 0 2.0 4.0 6.0 8.0 10 INPUT VOLTAGE (V) 6.0
Figure 8. Output Current vs. Input Voltage (5 V Version)
16
QUIESCENT CURRENT (mA)
Figure 9. Input Voltage vs. Output Voltage (5 V Version)
14 12 10 8 6 4 2 0 0
RL = 100 W RL = 50 W
10
20
30
40
50
INPUT VOLTAGE (V)
Figure 10. Quiescent Current vs. Input Voltage (5 V Version)
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NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 3.3 V Version
10 QUIESCENT CURRENT (mA) 9 8 7 6 5 4 3 2 1 0 0 25 50 75 100 125 OUTPUT CURRENT (mA) Vin = 13.5 V 150 175 -40C 125C OUTPUT VOLTAGE (V) 25C 3.6 3.3 3.0 2.7 2.4 2.1 1.8 1.5 1.2 0.9 0.6 0.3 0 0 5 10 15 20 25 30 35 40 45 INPUT VOLTAGE (V)
Iout = 5 mA
Figure 11. Quiescent Current vs. Output Current (3.3 V Version)
8 QUIESCENT CURRENT (mA) 7 6 5 4 3 2 1 0 0 5 Iout = 33 mA 10 15 20 25 30 35 40 45 INPUT VOLTAGE (V) Iout = 66 mA OUTPUT VOLTAGE (V) 3.366 3.355 3.344 3.333 3.322 3.311 3.300 3.289 3.278 3.267 3.256 3.245 3.234 -50
Figure 12. Input Voltage vs. Output Voltage (3.3 V Version)
Vout = 13.5 V Iout = 5 mA -25 0 25 50 75 100 125 150
TEMPERATURE (C)
Figure 13. Input Voltage vs. Quiescent Current (3.3 V Version)
150 QUIESCENT CURRENT (mA) Vin = 13.5 V Iout = 5 mA 180 150 120 90 60 30 0 -25 0 25 50 75 100 125 150 0
Figure 14. Output Voltage vs. Temperature (3.3 V Version)
140
130
120
110 100 -50
OUTPUT CURRENT (mA)
5
10
15
20
25
30
35
40
45
TEMPERATURE (C)
INPUT VOLTAGE (V)
Figure 15. Quiescent Current vs. Temperature (3.3 V Version)
Figure 16. Input Voltage vs. Output Current (3.3 V Version)
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NCV4264-2
TYPICAL CHARACTERISTIC CURVES - 3.3 V Version
20 Unstable Region 15 ESR (W)
10
5 Stable Region 0 30 60 90 Vin = 13.5 V Cout 22 mF 120 150
0
OUTPUT CURRENT (mA)
Figure 17. ESR Stability vs. Output Current (3.3 V Version)
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NCV4264-2
Circuit Description
The NCV4264-2 is functionally and pin for pin compatible with NCV4264 with a lower quiescent current consumption. Its output stage supplies 100 mA with $2.0% output voltage accuracy. Maximum dropout voltage is 500 mV at 100 mA load current. It is internally protected against 45 V input transients, input supply reversal, output overcurrent faults, and excess die temperature. No external components are required to enable these features.
Regulator
Calculating Power Dissipation in a Single Output Linear Regulator
The maximum power dissipation for a single output regulator (Figure 3) is:
PD(max) + VIN(max) * VOUT(min) * IQ(max) ) VI(max) * IQ (eq. 1)
The error amplifier compares the reference voltage to a sample of the output voltage (VOUT) and drives the base of a PNP series pass transistor by a buffer. The reference is a bandgap design to give it a temperature-stable output. Saturation control of the PNP is a function of the load current and input voltage. Oversaturation of the output power device is prevented, and quiescent current in the ground pin is minimized.
Regulator Stability Considerations
Where: VIN(max) is the maximum input voltage, VOUT(min) is the minimum output voltage, IQ(max) is the maximum output current for the application, and IQ is the quiescent current the regulator consumes at IQ(max). Once the value of PD(max) is known, the maximum permissible value of RqJA can be calculated:
PqJA + (150C * TA) PD (eq. 2)
The input capacitor CI1 in Figure 2 is necessary for compensating input line reactance. Possible oscillations caused by input inductance and input capacitance can be damped by using a resistor of approximately 1 W in series with CI2. The output or compensation capacitor, COUT helps determine three main characteristics of a linear regulator: startup delay, load transient response and loop stability. Tantalum, aluminum electrolytic, film, or ceramic capacitors are all acceptable solutions, however, attention must be paid to ESR constraints. The capacitor manufacturer 's data sheet usually provides this information. The value for the output capacitor COUT shown in Figure 2 should work for most applications; however, it is not necessarily the optimized solution. Stability is guaranteed at values of CQ w 10 mF, with an ESR v 9 W for the 5.0 V Version, and CQ w 22 mF with an ESR v 16 W for the 3.3 V Version within the operating temperature range. Actual limits are shown in a graph in the Typical Performance Characteristics section.
The value of RqJA can then be compared with those in the package section of the data sheet. Those packages with RqJA's less than the calculated value in Equation 2 will keep the die temperature below 150C. In some cases, none of the packages will be sufficient to dissipate the heat generated by the IC, and an external heat sink will be required. The current flow and voltages are shown in the Measurement Circuit Diagram.
Heat Sinks
A heat sink effectively increases the surface area of the package to improve the flow of heat away from the IC and into the surrounding air. Each material in the heat flow path between the IC and the outside environment will have a thermal resistance. Like series electrical resistances, these resistances are summed to determine the value of RqJA:
RqJA + RqJC ) RqCS ) RqSA (eq. 3)
Where: RqJC = the junction-to-case thermal resistance, RqCS = the case-to-heat sink thermal resistance, and RqSA = the heat sink-to-ambient thermal resistance. RqJA appears in the package section of the data sheet. Like RqJA, it too is a function of package type. RqCS and RqSA are functions of the package type, heat sink and the interface between them. These values appear in data sheets of heat sink manufacturers. Thermal, mounting, and heat sinking are discussed in the ON Semiconductor application note AN1040/D, available on the ON Semiconductor Website.
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NCV4264-2
120 100 80 qJA (C/W) 60 40 20 0 0 100 200 300 400 500 600 700 COPPER AREA (sq mm) SOT-223
Figure 18.
1000 SOT-223 100 10 1 0.1 0.01 0.001 0.000001
R(t) (C/W)
0.00001
0.0001
0.001
0.01 0.1 PULSE TIME (sec)
1
10
100
1000
Figure 19.
ORDERING INFORMATION
Device NCV4264-2ST50T3G NCV4264-2ST33T3G Package SOT-223 (Pb-Free) SOT-223 (Pb-Free) Shipping 4000 / Tape & Reel 4000 / Tape & Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.
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NCV4264-2
PACKAGE DIMENSIONS
SOT-223 (TO-261) CASE 318E-04 ISSUE M
D b1
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. MILLIMETERS NOM MAX 1.63 1.75 0.06 0.10 0.75 0.89 3.06 3.20 0.29 0.35 6.50 6.70 3.50 3.70 2.30 2.40 0.94 1.05 1.75 2.00 7.00 7.30 10 INCHES NOM 0.064 0.002 0.030 0.121 0.012 0.256 0.138 0.091 0.037 0.069 0.276 -
4
HE
1 2 3
E
b e1 e q C
DIM A A1 b b1 c D E e e1 L1 HE
A 0.08 (0003) A1
q
MIN 1.50 0.02 0.60 2.90 0.24 6.30 3.30 2.20 0.85 1.50 6.70 0
MIN 0.060 0.001 0.024 0.115 0.009 0.249 0.130 0.087 0.033 0.060 0.264 0
MAX 0.068 0.004 0.035 0.126 0.014 0.263 0.145 0.094 0.041 0.078 0.287 10
L1
SOLDERING FOOTPRINT
3.8 0.15 2.0 0.079
2.3 0.091
2.3 0.091
6.3 0.248
2.0 0.079 1.5 0.059
mm inches
SCALE 6:1
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
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NCV4264-2/D

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