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MC33269DT-12RK [MOTOROLA]

12V FIXED POSITIVE LDO REGULATOR, 1.35V DROPOUT, PSSO2, PLASTIC, DPAK-3;
MC33269DT-12RK
型号： MC33269DT-12RK
厂家： MOTOROLA    MOTOROLA
描述：

12V FIXED POSITIVE LDO REGULATOR, 1.35V DROPOUT, PSSO2, PLASTIC, DPAK-3

线性稳压器IC 三端稳压器 调节器 电源电路 输出元件
文件： 总8页 (文件大小：192K)
中文：  中文翻译
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Order this document by MC33269/D  
800 mA  
LOW DROPOUT  
THREE–TERMINAL  
VOLTAGE REGULATORS  
The MC33269 series are low dropout, medium current, fixed and  
adjustable, positive voltage regulators specifically designed for use in low  
input voltage applications. These devices offer the circuit designer an  
economical solution for precision voltage regulation, while keeping power  
losses to a minimum.  
D SUFFIX  
PLASTIC PACKAGE  
The regulator consists of a 1.0 V dropout composite PNP–NPN pass  
transistor, current limiting, and thermal shutdown.  
8
CASE 751  
(SOP–8)  
1
• 3.3 V, 5.0 V, 12 V and Adjustable Versions  
• Space Saving DPAK, SOP–8 and SOT–223 Power Packages  
• 1.0 V Dropout  
• Output Current in Excess of 800 mA  
• Thermal Protection  
• Short Circuit Protection  
• Output Trimmed to 1.0% Tolerance  
• No Minimum Load Requirement for Fixed Voltage Output Devices  
Gnd/Adj  
1
2
8
7
6
NC  
V
V
out  
out  
3
4
V
5
NC  
in  
(Top View)  
ORDERING INFORMATION  
Operating  
DT SUFFIX  
PLASTIC PACKAGE  
CASE 369A  
1
Temperature Range  
Device  
MC33269D  
Package  
(DPAK)  
3
SOP–8  
DPAK  
1. Gnd/Adj  
MC33269DT  
MC33269ST  
2. V  
out  
SOT–223  
Insertion Mount  
SOP–8  
1
2
3
3. V  
in  
MC33269T  
ST SUFFIX  
PLASTIC PACKAGE  
CASE 318E  
MC33269D–3.3  
MC33269DT–3.3  
MC33269ST–3.3  
MC33269T–3.3  
MC33269D–5.0  
MC33269DT–5.0  
MC33269T–5.0  
MC33269ST–5.0  
MC33269D–12  
MC33269DT–12  
MC33269T–12  
MC33269ST–12  
(Top View)  
DPAK  
(SOT–223)  
1
SOT–223  
Insertion Mount  
SOP–8  
3
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
T = –40° to +125°C  
J
DPAK  
Insertion Mount  
SOT–223  
SOP–8  
T SUFFIX  
PLASTIC PACKAGE  
CASE 221A  
DPAK  
Insertion Mount  
SOT–223  
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE  
1
Pin: 1. Gnd/Adj  
2
MC33269D  
MC33269DT  
MC33269T  
MC33269ST  
MC33269D–3.3  
MC33269DT–3.3  
MC33269T–3.3  
MC33269ST–3.3  
Adj  
Adj  
Adj  
MC33269D–5.0  
MC33269DT–5.0  
MC33269T–5.0  
MC33269ST–5.0  
MC33269D–12  
MC33269DT–12  
MC33269T–12  
MC33269ST–12  
5.0 V  
5.0 V  
5.0 V  
5.0 V  
12 V  
12 V  
12 V  
12 V  
3
2. V  
3. V  
out  
in  
Adj  
1 2 3  
3.3 V  
3.3 V  
3.3 V  
3.3 V  
(Top View)  
Heatsink surface (shown as terminal 4 in  
case outline drawing) is connected to Pin 2.  
This document contains information on a new product. Specifications and information herein  
Motorola, Inc. 1997  
Rev 4  
are subject to change without notice.  
MC33269  
MAXIMUM RATINGS  
Rating  
Symbol  
Value  
Unit  
Power Supply Input Voltage  
V
in  
20  
V
Power Dissipation  
Case 369A (DPAK)  
T
A
= 25°C  
P
D
Internally Limited  
W
Thermal Resistance, Junction–to–Ambient  
Thermal Resistance, Junction–to–Case  
Case 751 (SOP–8)  
θ
θ
92  
6.0  
°C/W  
°C/W  
JA  
JC  
T
= 25°C  
P
θ
θ
Internally Limited  
W
°C/W  
°C/W  
A
D
JA  
JC  
Thermal Resistance, Junction–to–Ambient  
Thermal Resistance, Junction–to–Case  
Case 221A  
160  
25  
T
= 25°C  
P
θ
θ
Internally Limited  
W
°C/W  
°C/W  
A
D
JA  
JC  
Thermal Resistance, Junction–to–Ambient  
Thermal Resistance, Junction–to–Case  
Case 318E  
65  
5.0  
T
= 25°C  
P
θ
θ
Internally Limited  
W
°C/W  
°C/W  
A
D
JA  
JC  
Thermal Resistance, Junction–to–Ambient  
Thermal Resistance, Junction–to–Case  
245  
15  
Operating Junction Temperature Range  
Storage Temperature  
T
–40 to +150  
–55 to +150  
°C  
°C  
J
T
stg  
NOTE: ESD data available upon request.  
ELECTRICAL CHARACTERISTICS (C = 10 µF, T = 25°C, for min/max values T = –40°C to +125°C, unless otherwise noted.)  
O
A
J
Characteristic  
Symbol  
Min  
Typ  
Max  
Unit  
Output Voltage (I  
= 10 mA, T = 25°C)  
V
O
V
out  
J
3.3 Suffix (V  
5.0 Suffix (V  
12 Suffix (V  
= 5.3 V)  
= 7.0 V)  
= 14 V)  
3.27  
4.95  
11.88  
3.3  
5.0  
12  
3.33  
5.05  
12.12  
CC  
CC  
CC  
Output Voltage (Line, Load and Temperature) (Note 1)  
V
O
V
(1.25 V ≤ V – V  
in  
≤ 15 V, I  
≤ 10 V, I  
= 500 mA)  
= 800 mA)  
out  
out  
out  
out  
(1.35 V ≤ V – V  
in  
3.3 Suffix  
5.0 Suffix  
12 Suffix  
3.23  
4.9  
11.76  
3.3  
5.0  
12  
3.37  
5.1  
12.24  
Reference Voltage (I  
Adjustable  
= 10 mA, V – V  
in out  
= 2.0 V, T = 25°C)  
V
ref  
1.235  
1.25  
1.265  
V
V
out  
J
Reference Voltage (Line, Load and Temperature) (Note 1)  
V
ref  
1.225  
1.25  
1.275  
(1.25 V ≤ V – V  
in  
≤ 15 V, I  
≤ 10 V, I  
= 500 mA)  
= 800 mA)  
out  
out  
out  
out  
(1.35 V ≤ V – V  
in  
Adjustable  
Line Regulation  
Reg  
–
–
–
–
0.3  
0.5  
%
line  
(I  
out  
= 10 mA, V = [V  
in out  
+ 1.5 V] to V = 20 V, T = 25°C)  
in  
J
Load Regulation (V = V  
in  
+ 3.0 V, I  
= 10 mA to 800 mA, T = 25°C)  
Reg  
%
V
out  
out  
J
load  
Dropout Voltage  
V
in  
– V  
out  
(I  
out  
(I  
out  
= 500 mA)  
= 800 mA)  
–
–
1.0  
1.1  
1.25  
1.35  
Ripple Rejection  
(10 Vpp, 120 Hz Sinewave; I  
RR  
55  
–
–
dB  
= 500 mA)  
out  
= 10 V)  
Current Limit (V – V  
in out  
I
800  
–
–
–
mA  
mA  
mA  
Limit  
Quiescent Current (Fixed Output)  
I
Q
5.5  
8.0  
Minimum Required Load Current  
Fixed Output  
Adjustable  
I
Load  
–
8.0  
–
–
0
–
Adjustment Pin Current  
I
–
–
120  
µA  
Adj  
NOTE 1: The MC33269–12, V – V  
is limited to 8.0 V maximum, because of the 20 V maximum rating applied to V .  
in  
in  
out  
2
MOTOROLA ANALOG IC DEVICE DATA  
MC33269  
Internal Schematic  
Trim Links  
V
Adj  
Gnd  
This device contains 38 active transistors.  
3
MOTOROLA ANALOG IC DEVICE DATA  
MC33269  
Figure 1. Dropout Voltage versus  
Output Load Current  
Figure 2. Transient Load Regulation  
1.5  
1.3  
1.1  
0.9  
0.7  
0.5  
T
= –40  
= 125  
°
C
C
100  
A
T
= 25°C  
A
mV/Div  
C
C
V
= 10  
= 10  
µ
F
in  
O
in  
µF Tantalum  
T
°
A
= V + 3.0 V  
O
Preload = 0.1 A  
0.5 A  
0 A  
0
200  
400  
600  
800  
1000  
20 ms/DIV  
I
, OUTPUT LOAD CURRENT (mA)  
O
Figure 3. Dropout Voltage  
versus Temperature  
Figure 4. MC33269–XX Output DC Current versus  
Input–Output Differential Voltage  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
1100  
1060  
1020  
980  
I
= 800 mA  
O
T
= 25°C  
A
MC33269D–XX  
L = 25 mm Copper  
940  
900  
–55  
0
2.0  
4.0  
6.0  
8.0  
10  
12  
14  
16  
–25  
0
25  
50  
75  
100  
125  
T , AMBIENT TEMPERATURE (  
°C)  
INPUT–OUTPUT VOLTAGE DIFFERENTIAL (V)  
A
Figure 5. MC33269 Ripple Rejection  
versus Frequency  
Figure 6. MC33269–ADJ Ripple Rejection  
versus Frequency  
70  
70  
V
= 3.3 V or 5.0 V  
O
60  
50  
40  
30  
20  
60  
V
= 12 V  
O
50  
40  
30  
20  
V
= 8.0 V  
= 5.0 V  
= 800 mA  
in  
V
out  
V
I
= V + 3.0 V  
O
I
in  
L
L
= 800 mA  
= 25°C  
C
T
= 22 µF  
Adj  
= 25  
T
°C  
A
A
0.1  
1.0  
10  
100  
0.1  
1.0  
10  
f, FREQUENCY (kHz)  
100  
f, FREQUENCY (kHz)  
4
MOTOROLA ANALOG IC DEVICE DATA  
MC33269  
Figure 8. SOP–8 Thermal Resistance and Maximum  
Power Dissipation versus P.C.B. Copper Length  
Figure 9. DPAK Thermal Resistance and Maximum  
Power Dissipation versus P.C.B. Copper Length  
170  
3.2  
2.4  
2.0  
1.6  
1.2  
0.8  
0.4  
0
100  
90  
80  
70  
60  
50  
40  
P
for T = 50°C  
A
D(max)  
Free Air  
Mounted  
Vertically  
2.8  
2.4  
2.0  
1.6  
1.2  
0.8  
0.4  
150  
P
for T = 50°C  
A
D(max)  
2.0 oz. Copper  
L
130  
110  
90  
Minimum  
Size Pad  
Graph represents symmetrical layout  
L
2.0 oz.  
L
Copper  
70  
L
3.0 mm  
50  
30  
R
θ
JA  
R
θ
JA  
0
5.0  
10  
15  
20  
25  
30  
0
10  
20  
30  
40  
50  
L, LENGTH OF COPPER (mm)  
L, LENGTH OF COPPER (mm)  
Figure 7. SOT–223 Thermal Resistance and Maximum  
Power Dissipation versus P.C.B. Copper Length  
280  
240  
200  
160  
120  
80  
2.50  
1.25  
0.83  
0.63  
0.50  
0.42  
0.35  
P
for T = 50°C  
A
D(max)  
Free Air  
Mounted  
Vertically  
2.0 oz. Copper  
L
Minimum  
Size Pad  
L
R
θ
JA  
40  
0
5.0  
10  
15  
20  
25  
30  
L, LENGTH OF COPPER (mm)  
5
MOTOROLA ANALOG IC DEVICE DATA  
MC33269  
APPLICATIONS INFORMATION  
Figures 10 through 14 are typical application circuits. The  
filter with long wire lengths. This will reduce the circuit’s  
sensitivity to the input line impedance at high frequencies. A  
0.33 µF or larger tantalum, mylar, ceramic, or other capacitor  
having low internal impedance at high frequencies should be  
chosen. The bypass capacitor should be mounted with  
shortest possible lead or track length directly across the  
regulator’s input terminals. Applications should be tested  
over all operating conditions to insure stability.  
Internal thermal limiting circuitry is provided to protect the  
integrated circuit in the event that the maximum junction  
temperature is exceeded. When activated, typically at 170°C,  
the output is disabled. There is no hysteresis built into the  
thermal limiting circuit. As a result, if the device is  
overheating, the output will appear to be oscillating. This  
feature is provided to prevent catastrophic failures from  
accidental device overheating. It is not intended to be used  
as a substitute for proper heatsinking.  
output current capability of the regulator is in excess of  
800 mA, with a typical dropout voltage of less than 1.0 V.  
Internal protective features include current and thermal  
limiting.  
The MC33269 is not internally compensated and thus  
requires an external output capacitor for stability. The  
capacitor should be at least 10 µF with an equivalent series  
resistance (ESR) of less than 10 Ω over the anticipated  
operating temperature range. With economical electrolytic  
capacitors, cold temperature operation can pose a problem.  
As temperature decreases, the capacitance also decreases  
and the ESR increases, which could cause the circuit to  
oscillate. Solid tantalum capacitors may be a better choice if  
small size is a requirement. Also capacitance and ESR of a  
solid tantalum capacitor is more stable over temperature. An  
input bypass capacitor is recommended to improve transient  
response or if the regulator is connected to the supply input  
Figure 10. Typical Fixed Output Application  
Figure 11. Typical Adjustable Output Application  
V
V
out  
V
V
out  
in  
in  
MC33269  
MC33269–XX  
C
in  
C
O
C
R1  
R2  
in  
10 µF  
C
Adj  
O
10 µF  
Gnd  
C
*
Adj  
An input capacitor is not necessary for stability, however  
it will improve the overall performance.  
R2  
R1  
V
1.25  
1
I
R2  
out  
Adj  
Figure 12. Current Regulator  
*C  
is optional, however it will improve the ripple rejection.  
Adj  
The MC34269 develops a 1.25 V reference voltage between the  
output and the adjust terminal. Resistor R1, operates with  
constant current to flow through it and resistor R2. This current  
should be set such that the Adjust Pin current causes negligible  
drop across resistor R2. The total current with minimum load  
should be greater than 8.0 mA.  
V
R
I
in  
S
out  
MC33269  
C
O
C
in  
10 µF  
Adj  
1.25  
I
out  
R
S
Figure 13. Battery Backed–Up Power Supply  
Figure 14. Digitally Controlled Voltage Regulator  
V
V
out  
V
V
out  
in  
in  
MC33269  
MC33269–XX  
C
C
in  
in  
R1  
R2  
Adj  
Gnd  
C
O
10 µF  
MC33269–XX  
C
10 µF  
O
C
in  
Gnd  
TheSchottky diode in series with the ground leg of the upper  
regulator shifts its output voltage higher by the forward  
voltage drop of the diode. This will cause the lower device  
to remain off until the input voltage is removed.  
R
sets the maximum output voltage. Each transistor  
2
reduces the output voltage when turned on.  
6
MOTOROLA ANALOG IC DEVICE DATA  
MC33269  
OUTLINE DIMENSIONS  
D SUFFIX  
PLASTIC PACKAGE  
CASE 751–05  
(SOP–8)  
ISSUE R  
NOTES:  
D
A
1. DIMENSIONING AND TOLERANCING PER ASME  
Y14.5M, 1994.  
C
2. DIMENSIONS ARE IN MILLIMETERS.  
3. DIMENSION D AND E DO NOT INCLUDE MOLD  
PROTRUSION.  
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.  
5. DIMENSION B DOES NOT INCLUDE MOLD  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS  
OF THE B DIMENSION AT MAXIMUM MATERIAL  
CONDITION.  
8
1
5
4
M
M
0.25  
B
H
E
h X 45  
MILLIMETERS  
B
e
DIM  
A
A1  
B
C
D
E
e
H
h
MIN  
1.35  
0.10  
0.35  
0.18  
4.80  
3.80  
MAX  
1.75  
0.25  
0.49  
0.25  
5.00  
4.00  
A
C
SEATING  
PLANE  
L
1.27 BSC  
0.10  
5.80  
0.25  
0.40  
0
6.20  
0.50  
1.25  
7
A1  
B
L
M
S
S
0.25  
C
B
A
DT SUFFIX  
PLASTIC PACKAGE  
CASE 369A–13  
(DPAK)  
ISSUE Y  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
SEATING  
PLANE  
–T–  
2. CONTROLLING DIMENSION: INCH.  
C
B
INCHES  
MILLIMETERS  
E
V
R
DIM  
A
B
C
D
E
MIN  
MAX  
0.250  
0.265  
0.094  
0.035  
0.040  
0.047  
MIN  
5.97  
6.35  
2.19  
0.69  
0.84  
0.94  
MAX  
6.35  
6.73  
2.38  
0.88  
1.01  
1.19  
0.235  
0.250  
0.086  
0.027  
0.033  
0.037  
4
Z
A
K
S
F
1
2
3
G
H
J
K
L
R
S
U
V
0.180 BSC  
4.58 BSC  
U
0.034  
0.018  
0.102  
0.040  
0.023  
0.114  
0.87  
0.46  
2.60  
1.01  
0.58  
2.89  
0.090 BSC  
2.29 BSC  
F
J
0.175  
0.020  
0.020  
0.030  
0.138  
0.215  
0.050  
–––  
0.050  
–––  
4.45  
0.51  
0.51  
0.77  
3.51  
5.46  
1.27  
–––  
1.27  
–––  
L
H
D 2 PL  
0.13 (0.005)  
Z
M
G
T
7
MOTOROLA ANALOG IC DEVICE DATA  
MC33269  
OUTLINE DIMENSIONS  
ST SUFFIX  
PLASTIC PACKAGE  
CASE 318E–04  
ISSUE H  
A
F
NOTES:  
(SOT–223)  
1
DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
CONTROLLING DIMENSION: INCH.  
2
4
2
INCHES  
MILLIMETERS  
S
B
DIM  
A
B
C
D
F
G
H
J
K
L
M
S
MIN  
MAX  
0.263  
0.145  
0.068  
0.035  
0.126  
0.094  
MIN  
6.30  
3.30  
1.50  
0.60  
2.90  
2.20  
0.020  
0.24  
1.50  
0.85  
0
MAX  
6.70  
3.70  
1.75  
0.89  
3.20  
2.40  
0.100  
0.35  
2.00  
1.05  
10  
1
3
0.249  
0.130  
0.060  
0.024  
0.115  
0.087  
D
L
0.0008 0.0040  
G
0.009  
0.060  
0.033  
0
0.014  
0.078  
0.041  
10  
J
C
0.08 (0003)  
0.264  
0.287  
6.70  
7.30  
M
H
K
T SUFFIX  
PLASTIC PACKAGE  
CASE 221A–06  
ISSUE Y  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: INCH.  
3. DIMENSION Z DEFINES A ZONE WHERE ALL  
BODY AND LEAD IRREGULARITIES ARE  
ALLOWED.  
B
F
SEATING  
PLANE  
–T–  
C
S
4
1
T
INCHES  
MIN  
MILLIMETERS  
DIM  
A
B
C
D
F
MAX  
0.620  
0.405  
0.190  
0.035  
0.147  
0.105  
0.155  
0.025  
0.562  
0.060  
0.210  
0.120  
0.110  
0.055  
0.255  
0.050  
–––  
MIN  
14.48  
9.66  
4.07  
0.64  
3.61  
2.42  
2.80  
0.46  
12.70  
1.15  
4.83  
2.54  
2.04  
1.15  
5.97  
0.00  
1.15  
–––  
MAX  
15.75  
10.28  
4.82  
0.88  
3.73  
2.66  
3.93  
0.64  
14.27  
1.52  
5.33  
3.04  
2.79  
1.39  
6.47  
1.27  
–––  
A
K
Q
0.570  
0.380  
0.160  
0.025  
0.142  
0.095  
0.110  
0.018  
0.500  
0.045  
0.190  
0.100  
0.080  
0.045  
0.235  
0.000  
0.045  
–––  
2
3
H
U
G
H
J
K
L
N
Q
R
S
Z
L
V
R
G
J
T
U
V
D
N
Z
0.080  
2.04  
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding  
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and  
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola  
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”  
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of  
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other  
applicationsintended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury  
ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola  
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  
Motorola was negligent regarding the design or manufacture of the part. Motorola and  
Opportunity/Affirmative Action Employer.  
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal  
Mfax is a trademark of Motorola, Inc.  
How to reach us:  
USA/EUROPE/Locations Not Listed: Motorola Literature Distribution;  
P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447  
JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1,  
Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488  
Mfax : RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609  
ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,  
– US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298  
INTERNET: http://motorola.com/sps  
MC33269/D  
◊

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