MC33263SQL-40R2 [ONSEMI]

4V FIXED POSITIVE LDO REGULATOR, 0.26V DROPOUT, PDSO6, 2 X 2 MM, PLASTIC, QFN-6;
MC33263SQL-40R2
型号: MC33263SQL-40R2
厂家: ONSEMI    ONSEMI
描述:

4V FIXED POSITIVE LDO REGULATOR, 0.26V DROPOUT, PDSO6, 2 X 2 MM, PLASTIC, QFN-6

光电二极管
文件: 总16页 (文件大小:160K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
MC33263  
Ultra Low Noise  
150 mA Low Dropout  
Voltage Regulator with  
ON/OFF Control  
http://onsemi.com  
Housed in a SOT23–L package, the MC33263 delivers up to  
150 mA where it exhibits a typical 180 mV dropout. With an  
incredible noise level of 25 mVRMS (over 100 Hz to 100 kHz, with a  
10 nF bypass capacitor), the MC33263 represents the ideal choice for  
sensitive circuits, especially in portable applications where noise  
performance and space are premium. The MC33263 also excels in  
response time and reacts in less than 25 ms when receiving an OFF to  
ON signal (with no bypass capacitor).  
Thanks to a novel concept, the MC33263 accepts output capacitors  
without any restrictions regarding their Equivalent Series Resistance  
(ESR) thus offering an obvious versatility for immediate implementation.  
With a typical DC ripple rejection better than –90 dB (–70 dB @  
1.0 kHz), it naturally shields the downstream electronics against  
choppy power lines.  
SOT–23L  
NW SUFFIX  
CASE 318J  
6
1
QFN 2x2  
SQL SUFFIX  
CASE 488  
1
6
PIN CONNECTIONS AND  
MARKING DIAGRAMS  
Additionally, thermal shutdown and short–circuit protection  
provide the final product with a high degree of ruggedness.  
SOT–23L  
Features:  
1
2
3
6
5
4
V
ON/OFF  
GND  
IN  
Very Low Quiescent Current 170 µA (ON, no load), 100 nA  
(OFF, no load)  
GND  
Very Low Dropout Voltage, Typical Value is 137 mV at an Output  
Current of 100 mA  
BYPASS  
V
OUT  
Very Low Noise with External Bypass Capacitor (10 nF),  
Typically 25 µVrms over 100 Hz to 100 kHz  
Internal Thermal Shutdown  
(Top View)  
QFN 2x2  
Extremely Tight Line Regulation Typically –90 dB  
6
V
in  
On/Off  
Ripple Rejection –70 dB @ 1.0 kHz  
1
Line Transient Response: 1.0 mV for DV = 3.0 V  
Extremely Tight Load Regulation, Typically 20 mV at DI = 150 mA  
Multiple Output Voltages Available  
in  
xx  
2
3
5
4
Gnd  
Gnd  
out  
V
out  
Bypass  
Logic Level ON/OFF Control (TTL–CMOS Compatible)  
ESR can vary from 0 to 3.0 W  
(Top View)  
Functionally and Pin Compatible with TK112xxA/B Series  
Extremely Small QFN 2x2 Package  
x
= Voltage Option Code  
xx = Version  
A
L
Y
W
= Assembly Location  
= Wafer Lot  
= Year  
Applications:  
All Portable Systems, Battery Powered Systems, Cellular  
Telephones, Radio Control Systems, Toys and Low Voltage Systems  
= Work Week  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 11 of  
this data sheet.  
Semiconductor Components Industries, LLC, 2001  
1
Publication Order Number:  
June, 2001 – Rev. 4  
MC33263/D  
MC33263  
6 (1)  
Input  
1 (6)  
Shutdown  
Thermal  
Shutdown  
ON/OFF  
4 (3)  
Output  
3 (4)  
Bypass  
Band Gap  
Reference  
* Current Limit  
* Antisaturation  
* Protection  
2 (2)  
GND  
5 (5)  
GND  
NOTE: Pin numbers in parenthesis indicate QFN package.  
Figure 1. MC33263 Block Diagram  
MAXIMUM RATINGS  
Rating  
Symbol  
Pin #  
Value  
Unit  
Power Supply Voltage  
V
in  
6
12  
V
Power Dissipation and Thermal Resistance  
Maximum Power Dissipation  
Thermal Resistance, Junction–to–Air  
SOT–23L  
P
Internally Limited  
W
D
R
q
JA  
210  
225  
°C/W  
°C/W  
QFN  
Operating Ambient Temperature  
Maximum Junction Temperature  
T
–40 to +85  
150  
°C  
°C  
A
T
Jmax  
Storage Temperature Range  
T
stg  
–60 to +150  
°C  
ELECTRICAL CHARACTERISTICS (For typical values T = 25°C, for min/max values T = –40°C to +85°C, Max T = 150°C)  
A
A
J
Characteristics  
Symbol  
Pin #  
Min  
Typ  
Max  
Unit  
CONTROL ELECTRICAL CHARACTERISTICS  
Input Voltage Range  
V
1
1
0
V
V
ON/OFF  
in  
ON/OFF Input Current (All versions)  
I
mA  
ON/OFF  
V
= 2.4 V  
2.5  
ON/OFF  
ON/OFF Input Voltages (All versions)  
Logic “0”, i.e. OFF State  
Logic “1”, i.e. ON State  
V
1
V
ON/OFF  
2.2  
0.3  
CURRENTS PARAMETERS  
Current Consumption in OFF State (All versions)  
IQ  
mA  
mA  
mA  
mA  
OFF  
OFF Mode Current: V = V + 1.0 V, I = 0 mA  
0.1  
170  
900  
210  
2.0  
200  
1400  
in  
out  
out  
Current Consumption in ON State (All versions)  
ON Mode Sat Current: V = V + 1.0 V, I = 0 mA  
IQ  
ON  
in  
out  
out  
Current Consumption in Saturation ON State (All versions)  
ON Mode Sat Current: V = V – 0.5 V, I = 0 mA  
IQ  
SAT  
in  
out  
out  
Current Limit V = V + 1.0 V, (All versions)  
I
MAX  
in  
out  
Output Short–circuited (Note 1)  
175  
1. I (Output Current) is the measured current when the output voltage drops below 0.3 V with respect to V at I = 30 mA.  
out  
out  
out  
http://onsemi.com  
2
MC33263  
ELECTRICAL CHARACTERISTICS (For typical values T = 25°C, for min/max values T = –40°C to +85°C, Max T = 150°C)  
A
A
J
Characteristics  
Symbol  
Pin #  
Min  
Typ  
Max  
Unit  
V
in  
= V + 1.0 V, T = 25°C, 1.0 mA < I < 150 mA  
V
out  
4
V
out  
A
out  
2.8 Suffix  
3.0 Suffix  
3.2 Suffix  
3.3 Suffix  
3.8 Suffix  
4.0 Suffix  
4.75 Suffix  
5.0 Suffix  
2.74  
2.94  
3.13  
3.23  
3.72  
3.92  
4.66  
4.90  
2.8  
3.0  
3.2  
3.3  
3.8  
4.0  
4.75  
5.0  
2.86  
3.06  
3.27  
3.37  
3.88  
4.08  
4.85  
5.1  
V
in  
= V + 1.0 V, 40°C < T < 80°C,  
V
out  
4
V
out  
A
1.0 mA < I < 150 mA  
out  
2.8 Suffix  
3.0 Suffix  
3.2 Suffix  
3.3 Suffix  
3.8 Suffix  
4.0 Suffix  
4.75 Suffix  
5.0 Suffix  
2.7  
2.9  
2.8  
3.0  
3.2  
3.3  
3.8  
4.0  
4.75  
5.0  
2.9  
3.1  
3.09  
3.18  
3.67  
3.86  
4.58  
4.83  
3.31  
3.42  
3.93  
4.14  
4.92  
5.17  
LINE AND LOAD REGULATION, DROPOUT VOLTAGES  
Line Regulation (All versions)  
Reg  
4/6  
1
mV  
mV  
line  
V
out  
+ 1.0 V < V < 12 V, I = 60 mA  
2.0  
10  
in  
out  
Load Regulation (All versions)  
V
= V + 1.0 V  
Reg  
load  
in  
out  
out  
out  
out  
I
I
I
= 1.0 to 60 mA  
= 1.0 to 100 mA  
= 1.0 to 150 mA  
8.0  
15  
20  
25  
35  
45  
Dropout Voltage (All versions)  
V
in  
– V  
4, 6  
mV  
out  
I
I
I
= 10 mA  
= 100 mA  
= 150 mA  
30  
137  
180  
90  
230  
260  
out  
out  
out  
DYNAMIC PARAMETERS  
Ripple Rejection (All versions)  
4, 6  
4, 6  
dB  
V
in  
= V + 1.0 V, V = 1.0 V, f = 1.0 kHz, I = 60 mA  
60  
70  
out  
pp  
out  
Line Transient Response  
= V + 1.0 V to V + 4.0 V, I = 60 mA,  
mV  
V
in  
1.0  
out  
out  
out  
d(V )/dt = 15 mV/ms  
in  
Output Noise Voltage (All versions)  
= 1.0 µF, I = 60 mA, f = 100 Hz to 100 kHz  
V
RMS  
4, 6  
µVrms  
C
out  
out  
C
C
C
= 10 nF  
= 1.0 nF  
= 0 nF  
25  
40  
65  
bypass  
bypass  
bypass  
Output Noise Density  
= 1.0 µF, I = 60 mA, f = 1.0 kHz  
V
4
4
nV/ Hz  
N
C
230  
out  
out  
Output Rise Time (All versions)  
= 1.0 µF, I = 30 mA, V = 0 to 2.4 V  
ON/OFF  
t
r
C
out  
out  
1% of ON/OFF Signal to 99% of Nominal Output Voltage  
Without Bypass Capacitor  
40  
1.1  
µs  
ms  
With C  
= 10 nF  
bypass  
THERMAL SHUTDOWN  
Thermal Shutdown (All versions)  
150  
°C  
http://onsemi.com  
3
MC33263  
DEFINITIONS  
Load Regulation – The change in output voltage for a  
This feature is provided to prevent catastrophic failures from  
accidental overheating.  
Maximum Package Power Dissipation – The maximum  
package power dissipation is the power dissipation level at  
which the junction temperature reaches its maximum value  
i.e. 125°C. The junction temperature is rising while the  
change in load current at constant chip 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 100 mV below its nominal value (which is  
measured at 1.0 V differential), dropout voltage is affected  
by junction temperature, load current and minimum input  
supply requirements.  
difference between the input power (V X I ) and the  
CC  
CC  
output power (V X I ) is increasing.  
out  
out  
Depending on ambient temperature, it is possible to  
calculate the maximum power dissipation, maximum load  
current or maximum input voltage (see Application Hints:  
Protection).  
Output Noise Voltage – The RMS AC voltage at the  
output with a constant load and no input ripple, measured  
over a specified frequency range.  
Maximum Power Dissipation – The maximum total  
dissipation for which the regulator will operate within  
specifications.  
Quiescent Current – Current which is used to operate the  
regulator chip and is not delivered to the load.  
Line Regulation – The change in input voltage for a  
change in the input voltage. The measurement is made under  
conditions of low dissipation or by using pulse techniques  
such that the average chip temperature is not significantly  
affected.  
The maximum power dissipation supported by the device  
is a lot increased when using appropriate application design.  
Mounting pad configuration on the PCB, the board material  
and also the ambient temperature are affected the rate of  
temperature rise. It means that when the I has good thermal  
C
conductivity through PCB, the junction temperature will be  
“low” even if the power dissipation is great.  
The thermal resistance of the whole circuit can be  
evaluated by deliberately activating the thermal shutdown  
of the circuit (by increasing the output current or raising the  
input voltage for example).  
Line Transient Response  
– Typical over– and  
undershoot response when input voltage is excited with a  
given slope.  
Thermal Protection – Internal thermal shutdown  
circuitry is provided to protect the integrated circuit in the  
event that the maximum junction temperature is exceeded.  
When activated, typically 150°C, the regulator turns off.  
Then you can calculate the power dissipation by  
subtracting the output power from the input power. All  
variables are then well known: power dissipation, thermal  
shutdown temperature (150°C for MC33263) and ambient  
temperature.  
http://onsemi.com  
4
MC33263  
APPLICATION HINTS  
Input Decoupling – As with any regulator, it is necessary  
If a 150 mA output current is needed, the ground current  
is extracted from the data–sheet curves: 6.5 mA @ 150 mA.  
For a MC33263NW28R2 (2.8 V), the maximum input  
voltage will then be 6.48 V, a rather comfortable margin.  
Typical Application – The following figure portraits the  
typical application for the MC33263 where both  
input/output decoupling capacitors appear.  
to reduce the dynamic impedance of the supply rail that  
feeds the component. A 1 mF capacitor either ceramic or  
tantalum is recommended and should be connected close to  
the MC33263 package. Higher values will correspondingly  
improve the overall line transient response.  
Output Decoupling – Thanks to a novel concept, the  
MC33263 is a stable component and does not require any  
Equivalent Series Resistance (ESR) neither a minimum  
output current. Capacitors exhibiting ESRs ranging from a  
few mW up to 3 W can thus safely be used. The minimum  
decoupling value is 1 mF and can be augmented to fulfill  
stringent load transient requirements. The regulator accepts  
ceramic chip capacitors as well as tantalum devices.  
Noise Performances – Unlike other LDOs, the MC33263  
is a true low–noise regulator. With a 10 nF bypass capacitor,  
it typically reaches the incredible level of 25 mVRMS overall  
noise between 100 Hz and 100 kHz. To give maximum  
insight on noise specifications, ON Semiconductor includes  
spectral density graphics as well as noise dependency versus  
bypass capacitor.  
Input  
Output  
6
1
5
4
3
C3  
1.0 mF  
C2  
1.0 mF  
MC33263  
2
C1  
10 nF  
On/Off  
The bypass capacitor impacts the start–up phase of the  
MC33263 as depicted by the data–sheet curves. A typical  
1 ms settling time is achieved with a 10 nF bypass capacitor.  
However, thanks to its low–noise architecture, the  
MC33263 can operate without bypass and thus offers a  
typical 20 ms start–up phase. In that case, the typical output  
noise stays lower than 65 mVRMS between 100 Hz –  
100 kHz.  
Figure 2. A Typical MC33263 Application with  
Recommended Capacitor Values  
Protections – The MC33263 hosts several protections,  
conferring natural ruggedness and reliability to the products  
implementing the component. The output current is  
internally limited to a minimum of 175 mA while  
temperature shutdown occurs if the die heats up beyond  
150°C. These value lets you assess the maximum  
differential voltage the device can sustain at a given output  
current before its protections come into play.  
C1  
On/Off  
10 nF  
6
5
4
The maximum dissipation the package can handle is given  
by:  
1
2
3
Input  
Output  
T
– T  
Jmax  
+
A
+
P
+
max  
R
C3  
1.0 mF  
C2  
1.0 mF  
qJA  
If T  
is internally limited to 150°C, then the MC33263  
Jmax  
can dissipate up to 595 mW @ 25°C.  
The power dissipated by the MC33263 can be calculated  
from the following formula:  
Figure 3. A Typical MC33263 Application with  
Recommended Capacitor Values  
Ptot + ǀV @ I  
(I )ǁ ) ǀV * Vout ǁ @ I  
out  
out  
in gnd  
in  
or  
Ptot ) V  
@ I  
out  
out  
Vin  
+
max  
I
) I  
out  
gnd  
http://onsemi.com  
5
MC33263  
As for any low noise designs, particular care has to be  
MC33263 Wake–up Improvement – In portable  
applications, an immediate response to an enable signal is  
vital. If noise is not of concern, the MC33263 without a  
bypass capacitor settles in nearly 20 ms and typically delivers  
65 mVRMS between 100 Hz and 100 kHz.  
taken when tackling Printed Circuit Board (PCB) layout.  
The following figure gives an example of a layout where  
stray inductances/capacitances are minimized.  
In ultra low–noise systems, the designer needs a 10 nF  
bypass capacitor to decrease the noise down to 25 mVRMS  
between 100 Hz and 100 kHz. With the adjunction of the  
10 nF capacitor, the wake–up time expands up to 1 ms as  
shown on the data–sheet curves. If an immediate response  
is wanted, following figure’s circuit gives a solution to  
charge the bypass capacitor with the enable signal without  
degrading the noise response of the MC33263.  
At power–on, C4 is discharged. When the control logic  
sends its wake–up signal by going to a high level, the PNP  
base is momentarily tight to ground. The PNP switch closes  
and immediately charges the bypass capacitor C1 toward its  
operating value. After a few ms, the PNP opens and becomes  
totally transparent to the regulator.  
This circuit improves the response time of the regulator  
which drops from 1 ms down to 30 ms. The value of C4 needs  
to be tweaked in order to avoid any bypass capacitor  
overload during the wake–up transient.  
Figure 4. Printed Circuit Board  
Differential (V –V  
)
in out  
Package Placement – QFN packages can be placed using  
standard pick and place equipment with an accuracy of  
"0.05 mm. Component pick and place systems are  
composed of a vision system that recognizes and positions  
the component and a mechanical system which physically  
performs the pick and place operation. Two commonly used  
types of vision systems are: (1) a vision system that locates  
a package silhouette and (2) a vision system that locates  
individual bumps on the interconnect pattern. The latter type  
renders more accurate place but tends to be more expensive  
and time consuming. Both methods are acceptable since the  
parts align due to a self–centering feature of the QFN solder  
joint during solder re–flow.  
C3 MC33263  
+
Input  
Output  
+
C2  
C1  
Rpull–up  
Solder Paste Type 3 or Type 4 solder paste is acceptable.  
Re–flow and Cleaning – The QFN may be assembled  
using standard IR/IR convection SMT re–flow processes  
without any special considerations. As with other packages,  
the thermal profile for specific board locations must be  
determined. Nitrogen purge is recommended during solder  
for no–clean fluxes. The QFN is qualified for up to three  
re–flow cycles at 235°C peak (J–STD–020). The actual  
temperature of the QFN is a function of:  
ON/OFF  
Figure 5. Copper Side Component Layout  
This layout is the basis for an MC33263 performance  
evaluation board where the BNC connectors give the user an  
easy and quick evaluation mean.  
Component density  
Component location on the board  
Size of surrounding components  
http://onsemi.com  
6
MC33263  
C4  
470 pF  
Input  
Output  
R2  
220 k  
On/Off  
C1  
10 nF  
MMBT2902LT1  
Q1  
6
1
5
4
3
+
+
C3  
C2  
1.0 mF  
MC33263  
2
1.0 mF  
6
1
5
2
4
3
On/Off  
R2  
220 k  
C4  
470 pF  
Input  
Output  
C1  
10 nF  
MMBT2902LT1  
Q1  
+
+
C3  
1.0 mF  
C2  
1.0 mF  
Figure 6. A PNP Transistor Drives the  
Bypass Pin when Enable Goes High  
Figure 7. A PNP Transistor Drives the  
Bypass Pin when Enable Goes High  
MC33263 Without  
Wake–up Improvement  
(Typical Response)  
1 ms  
MC33263 With  
Wake–up Improvement  
(Typical Response)  
30 ms  
Figure 8. MC33263 Wake–up Improvement with Small PNP Transistor  
http://onsemi.com  
7
MC33263  
The PNP being wired upon the bypass pin, it shall not  
degrade the noise response of the MC33263. Figure 9  
confirms the good behavior of the integrated circuit in this  
area which reaches a typical noise level of 26 mVRMS  
(100 Hz to 100 kHz) at I = 60 mA.  
out  
350  
300  
250  
200  
V
= 3.8 V  
= 2.8 V  
in  
V
out  
C = 1.0 mF  
o
I
= 60 mA  
= 25°C  
out  
T
amb  
C
= 10 nF  
byp  
150  
100  
V
= 26 mVrms C = 10 nF  
in  
50  
0
@ 100 Hz – 100 kHz  
100 1,000  
10,000  
100,000  
1,000,000  
Frequency (Hz)  
Figure 9. Noise Density of the MC33263 with a 10 nF  
Bypass Capacitor and a Wake–up Improvement Network  
TYPICAL PERFORMANCE CHARACTERISTICS  
Ground Current Performances  
7.0  
6.0  
5.0  
4.0  
3.0  
2.0  
2.1  
2.05  
2.0  
V
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 25°C  
in  
V
out  
V
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 60 mA  
in  
C
T
amb  
O
V
out  
C
O
I
out  
1.95  
1.9  
1.85  
1.8  
1.0  
0
0
20 40 60 80 100 120 140 160 180 200  
OUTPUT CURRENT (mA)  
–40  
–20  
0
20  
40  
60  
80  
AMBIENT TEMPERATURE (°C)  
Figure 11. Ground Current versus Ambient  
Temperature  
Figure 10. Ground Current versus Output Current  
Line Transient Response and Output Voltage  
200  
190  
180  
170  
160  
150  
140  
130  
120  
Y1  
V
= 3.8 to 7.0 V  
in  
Y1 = 1.0 mV/div  
Y2 = 1.0 V/div  
X = 1.0 ms  
dV = 3.2 V  
in  
Y2  
I
= 60 mA  
= 25°C  
out  
T
amb  
110  
100  
–40  
–20  
0
20  
40  
60  
80  
100  
TEMPERATURE (°C)  
Figure 12. Quiescent Current versus Temperature  
Figure 13. Line Transient Response  
http://onsemi.com  
8
MC33263  
TYPICAL PERFORMANCE CHARACTERISTICS  
Load Transient Response versus Load Current Slope  
Y1  
Y2  
Y2  
V
= 3.8 V  
in  
Y1 = 100 mV/div  
Y2 = 20 mV/div  
X = 200 ms/div  
V
in  
= 3.8 V  
Y1 = 50 mA/div  
Y2 = 20 mV/div  
X = 20 ms  
T
amb  
= 25°C  
T
amb  
= 25°C  
Y1  
Y1: OUTPUT CURRENT, Y2: OUTPUT VOLTAGE  
Y1: OUTPUT CURRENT, Y2: OUTPUT VOLTAGE  
Figure 14. Iout = 3.0 mA to 150 mA  
Figure 15. ISlope = 100 mA/ms (Large Scale)  
Iout = 3.0 mA to 150 mA  
Y1  
Y1  
Y2  
Y2  
V
in  
= 3.8 V  
V
in  
= 3.8 V  
Y1 = 50 mA/div  
Y2 = 20 mV/div  
X = 200 ms  
Y1 = 50 mA/div  
Y2 = 20 mV/div  
X = 100 ms  
T
= 25°C  
T
= 25°C  
amb  
amb  
Y1: OUTPUT CURRENT, Y2: OUTPUT VOLTAGE  
Y1: OUTPUT CURRENT, Y2: OUTPUT VOLTAGE  
Figure 16. ISlope = 6.0 mA/ms (Large Scale)  
out = 3.0 mA to 150 mA  
Figure 17. ISlope = 2.0 mA/ms (Large Scale)  
I
Iout = 3.0 mA to 150 mA  
http://onsemi.com  
9
MC33263  
TYPICAL PERFORMANCE CHARACTERISTICS  
Noise Performances  
350  
300  
250  
200  
150  
100  
70  
V
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 60 mA  
in  
0 nF  
V
out  
60  
50  
40  
30  
20  
C
I
O
3.3 nF  
out  
T
amb  
= 23°C  
C
= 10 nF  
byp  
V
V
C
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 60 mA  
= 25°C  
in  
out  
Vn = 65 mVrms @ C  
Vn = 30 mVrms @ C  
Vn = 25 mVrms @ C  
= 0  
bypass  
bypass  
bypass  
O
= 3.3 nF  
= 10 nF  
50  
0
10  
0
I
out  
T
amb  
over 100 Hz to 100 kHz  
100 1000  
10,000  
FREQUENCY (Hz)  
100,000  
1,000,000  
0
2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10  
BYPASS CAPACITOR (nF)  
1.0  
Figure 18. Noise Density versus Bypass  
Capacitor  
Figure 19. RMS Noise versus Bypass Capacitor  
(100 Hz – 100 kHz)  
Settling Time Performances  
1200  
1000  
800  
V
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 60 mA  
in  
V
out  
C
O
I
out  
T
amb  
= 25°C  
600  
200 ms/div  
500 mV/div  
V = 3.8 V  
in  
400  
V
out  
= 2.8 V  
C
= 10 nF  
C
= 1.0 mF  
out  
= 50 mA  
byp  
200  
0
I
out  
T
amb  
= 25°C  
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10  
BYPASS CAPACITOR (nF)  
Figure 20. Output Voltage Settling Time versus  
Bypass Capacitor  
Figure 21. Output Voltage Settling Shape  
C
bypass = 10 nF  
V
= 3.8 V  
= 2.8 V  
in  
V
= 3.8 V  
= 2.8 V  
in  
V
out  
V
out  
C
= 1.0 mF  
10 ms/div  
500 mV/div  
out  
100 ms/div  
500 mV/div  
C
= 1.0 mF  
out  
I
= 50 mA  
= 25°C  
out  
I
= 50 mA  
= 25°C  
out  
T
amb  
C
= 0 nF  
byp  
C
= 3.3 nF  
byp  
T
amb  
Figure 22. Output Voltage Settling Shape  
bypass = 3.3 nF  
Figure 23. Output Voltage Settling Shape without  
Bypass Capacitor  
C
http://onsemi.com  
10  
MC33263  
TYPICAL PERFORMANCE CHARACTERISTICS  
Dropout Voltage  
250  
200  
150  
100  
250  
150 mA  
100 mA  
200  
85°C  
25°C  
150  
100  
–40°C  
60 mA  
50  
0
50  
0
10 mA  
60  
10  
60  
100  
150  
–40  
–20  
0
20  
40  
80  
100  
I
O
(mA)  
TEMPERATURE (°C)  
Figure 24. Dropout Voltage versus Iout  
Figure 25. Dropout Voltage versus Temperature  
Output Voltage  
2.860  
2.805  
2.800  
2.795  
2.790  
2.785  
2.780  
1 mA  
2.840  
2.820  
2.800  
2.780  
60 mA  
100 mA  
–40°C  
25°C  
150 mA  
85°C  
2.760  
2.740  
2.775  
2.770  
0
20  
40  
60  
80  
100 120  
140 160  
–40  
–20  
0
20  
40  
60  
80  
100  
OUTPUT CURRENT (mA)  
TEMPERATURE (°C)  
Figure 26. Output Voltage versus Temperature  
Figure 27. Output Voltage versus Iout  
Ripple Rejection Performances  
0
–20  
–40  
–60  
–80  
0
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
V
V
C
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 60 mA  
= 25°C  
in  
V
V
C
= 3.8 V  
= 2.8 V  
= 1.0 mF  
= 60 mA  
= 25°C  
in  
out  
out  
O
O
I
out  
I
out  
T
amb  
T
amb  
–100  
–120  
–90  
–100  
10  
100  
1000  
10,000  
100,000 1,000,000  
100  
1000  
10,000  
100,000  
FREQUENCY (Hz)  
FREQUENCY (Hz)  
Figure 28. Ripple Rejection versus Frequency with  
10 nF Bypass Capacitor  
Figure 29. Ripple Rejection versus Frequency  
without Bypass Capacitor  
http://onsemi.com  
11  
MC33263  
ORDERING AND DEVICE MARKING INFORMATION  
Device  
Marking  
A
Version  
2.8 V  
3.0 V  
3.2 V  
3.3 V  
3.8 V  
4.0 V  
4.75 V  
5.0 V  
2.8 V  
3.0 V  
3.2 V  
3.3 V  
3.8 V  
4.0 V  
4.75 V  
5.0 V  
Package  
Shipping  
MC33263NW–28R2  
MC33263NW–30R2  
MC33263NW–32R2  
MC33263NW–33R2  
MC33263NW–38R2  
MC33263NW–40R2  
MC33263NW–47R2  
MC33263NW–50R2  
MC33263SQL–28R2  
MC33263SQL–30R2  
MC33263SQL–32R2  
MC33263SQL–33R2  
MC33263SQL–38R2  
MC33263SQL–40R2  
MC33263SQL–47R2  
MC33263SQL–50R2  
B
C
D
SOT–23L  
2500 Tape & Reel  
E
F
G
H
LEL  
LEN  
LEP  
LEQ  
LER  
LES  
LET  
LEU  
QFN 2x2  
3000 Units/7Reel  
http://onsemi.com  
12  
MC33263  
PACKAGE DIMENSIONS  
SOT–23L  
NW SUFFIX  
CASE 318J–01  
ISSUE B  
NOTES:  
1. DIMENSIONS ARE IN MILLIMETERS.  
2. INTERPRET DIMENSIONS AND TOLERANCES  
PER ASME Y14.5M, 1994.  
0.05  
3. DIMENSION E1 DOES NOT INCLUDE INTERLEAD  
FLASH OR PROTRUSION. INTERLEAD FLASH OR  
PROTRUSION SHALL NOT EXCEED 0.23 PER  
SIDE.  
4. DIMENSIONS b AND b2 DO NOT INCLUDE  
DAMBAR PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.08 TOTAL IN EXCESS  
OF THE b AND b2 DIMENSIONS AT MAXIMUM  
MATERIAL CONDITION.  
5. TERMINAL NUMBERS ARE SHOWN FOR  
REFERENCE ONLY.  
6. DIMENSIONS D AND E1 ARE TO BE DETERMINED  
AT DATUM PLANE H.  
E
M
M
C B  
C
0.20  
PIN 1 IDENTIFIER  
IN THIS ZONE  
A
A
1
2
6
5
3
4
MILLIMETERS  
A1  
A
E1  
DIM MIN  
MAX  
1.40  
0.10  
0.50  
0.45  
0.25  
0.20  
3.60  
3.60  
2.40  
B
A
A
A1  
b
1.25  
0.00  
0.35  
0.35  
0.10  
0.10  
3.20  
3.00  
2.00  
b1  
c
(b)  
b1  
c1  
D
q
E
c
c1  
E1  
e
0.95  
1.90  
e1  
H
0.55  
10  
L
0.25  
0
L
q
_
_
SECTION A–A  
http://onsemi.com  
13  
MC33263  
PACKAGE DIMENSIONS  
QFN 2x2  
SQL SUFFIX  
PLASTIC PACKAGE  
CASE 488–02  
ISSUE A  
PIN 1  
IDENT.  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: MILLIMETERS.  
3. 488-01 OBSOLETE. NEW STANDARD IS 488-02.  
MILLIMETERS  
DIM MIN MAX  
INCHES  
MIN  
MAX  
0.088  
0.080  
0.037  
0.011  
A
B
C
D
G
H
J
2.18  
1.98  
0.88  
0.23  
2.23 0.086  
2.03 0.078  
0.93 0.035  
0.28 0.009  
TOP VIEW  
A
0.650 BSC  
0.026 BSC  
PIN 1  
0.35  
0.05  
1.28  
0.33  
0.40 0.014  
0.016  
0.004  
0.052  
0.015  
0.10 0.002  
1.33 0.050  
0.38 0.013  
C
J
L
S
S
H
G
B
L
D
U
BOTTOM VIEW  
SIDE VIEW  
http://onsemi.com  
14  
MC33263  
Notes  
http://onsemi.com  
15  
MC33263  
ON Semiconductor and  
are 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.  
PUBLICATION ORDERING INFORMATION  
Literature Fulfillment:  
JAPAN: ON Semiconductor, Japan Customer Focus Center  
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031  
Phone: 81–3–5740–2700  
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: ONlit@hibbertco.com  
Email: r14525@onsemi.com  
ON Semiconductor Website: http://onsemi.com  
For additional information, please contact your local  
Sales Representative.  
N. American Technical Support: 800–282–9855 Toll Free USA/Canada  
MC33263/D  

相关型号:

MC33264

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
ONSEMI

MC33264D-2.8

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
ONSEMI

MC33264D-2.8

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
MOTOROLA

MC33264D-2.8R2

2.8 V FIXED POSITIVE LDO REGULATOR, 0.23 V DROPOUT, PDSO8, PLASTIC, SO-8
MOTOROLA

MC33264D-3.0

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
ONSEMI

MC33264D-3.0

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
MOTOROLA

MC33264D-3.0R2

3V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO8, PLASTIC, SO-8
ONSEMI

MC33264D-3.0R2

3V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO8, PLASTIC, SO-8
MOTOROLA

MC33264D-3.3

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
ONSEMI

MC33264D-3.3

LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL
MOTOROLA

MC33264D-3.3R2

3.3V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO8, PLASTIC, SO-8
ONSEMI

MC33264D-3.3R2

3.3V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO8, PLASTIC, SO-8
MOTOROLA