ZLDO1117QGTA [DIODES]

Adjustable Positive LDO Regulator, 1.25V Min, 5V Max, BIPolar,;
ZLDO1117QGTA
型号: ZLDO1117QGTA
厂家: DIODES INCORPORATED    DIODES INCORPORATED
描述:

Adjustable Positive LDO Regulator, 1.25V Min, 5V Max, BIPolar,

输出元件 调节器
文件: 总14页 (文件大小:430K)
中文:  中文翻译
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A Product Line of  
Diodes Incorporated  
ZLDO1117  
1A LOW DROPOUT POSITIVE REGULATOR  
1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V AND ADJUSTABLE OUTPUTS  
Description  
Pin Assignments  
ZLDO1117 is a low dropout positive adjustable or fixed-mode  
regulator with 1A output current capability.  
SOT223  
The ZLDO1117 has a 2% tolerance across the industrial temperature  
range and is guaranteed to have lower than 1.2V dropout at full load  
current making it ideal to provide well-regulated outputs of 1.2V to  
5.0V with input supply voltages up to 18V.  
The ZLDO1117 is ideally suited to provide well-regulated supplies for  
low voltage IC applications such as high-speed bus termination and  
low current 3.3V logic supply across the whole industrial temperature  
range.  
TO252  
(Top View)  
3
Features  
Vin  
1.2V Maximum Dropout at Full Load Current  
2% Tolerance Over Temperature, Line and Load Variations  
Fast Transient Response  
2
Vout  
Adj (GND)  
1
Tab is Vout  
Output Current Limiting  
Built-in Thermal Shutdown  
Good Noise Rejection  
Suitable for use with MLCC Capacitors  
Qualified to AEC-Q100 Grade 2 (see ‘Ordering Information’)  
PPAP capable (Note 4)  
-40 to +125°C Junction Temperature Range  
Available in TO252 and SOT223 with “Green” Molding Compound  
(No Br, Sb)  
ƒ
ƒ
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)  
Halogen and Antimony Free. “Green” Device (Note 3)  
Notes:  
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.  
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.  
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)  
and <1000ppm antimony compounds.  
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Automotive, AEC-Q100 and standard products are electrically and thermally  
the same, except where specified.  
Typical Applications Circuit  
1A I/O – 1.8V Core Regulator  
ZLDO1117-18  
3.3V  
1.8V  
4.7µF  
MLCC  
4.7µF  
MLCC  
1 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Pin Descriptions  
Pin  
I/O  
Pin  
Number  
Function  
Name  
A resistor divider from this pin to the VOUT pin and ground sets the output voltage (Ground only for  
Fixed-Mode).  
Adj (GND)  
VOUT  
I
1
The output of the regulator. A minimum of 4.7µF capacitor (0.05Ω ≤ ESR 0.5) must be connected  
from this pin to ground to insure stability. For improved ac load response a larger output capacitor is  
recommended.  
O
2
The input pin of regulator. Typically a large storage capacitor (0.05Ω ≤ ESR 0.5) is connected from  
this pin to ground to ensure that the input voltage does not sag below the minimum dropout voltage  
during the load transient response. This pin must always be 1.3V higher than VOUT in order for the  
device to regulate properly.  
VIN  
I
3
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.)  
Symbol  
VIN  
Parameter  
Input Supply Voltage (Relative to Ground)  
Junction Temperature  
Rating  
-0.03 to +18  
+150  
Unit  
V
°C  
TJ  
Power Dissipation  
Storage Temperature  
See SOA Curve  
-65 to +150  
TST  
°C  
Unless otherwise stated voltages specified are relative to the ANODE pin.  
1.2  
1
0.8  
0.6  
SOA  
0.4  
0.2  
0
0
5
10  
15  
20  
25  
VIN - VOUT (V)  
Safe Operation Area (SOA) Curve  
ESD Susceptibility  
Symbol  
Parameter  
Rating  
4
400  
Unit  
kV  
V
HBM  
MM  
Human Body Model  
Machine Model  
Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional  
operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to  
absolute maximum rating conditions for extended periods of time.  
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and  
transporting these devices  
2 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)  
Symbol  
Parameter  
Min  
2.7 (Note 8)  
0.01  
Max  
18  
Unit  
V
VIN  
IO  
Input voltage  
Output current  
1
A
TJ  
Operating Junction Temperature Range (Note 5)  
-40  
+125  
°C  
Package Thermal Data  
Thermal Resistance  
Package  
SOT223 (Note 6)  
TO252 (Note 7)  
Rating  
Unit  
107  
73  
Junction-to-Ambient, θJA  
Junction-to-Case, θJC  
°C/W  
SOT223 (Note 6)  
TO252 (Note 7)  
16  
12  
°C/W  
Notes:  
5. ZLDO1117 contains an internal thermal limiting circuit that is designed to protect the regulator in the event that the maximum junction temperature  
exceeded. When activated, typically at 150°C, the regulator Output switches off and then back on as the die cools.  
6. Test condition for SOT223: TA = +27°C, no air flow, device mounted on 2”X2” polyimide PCB, 2 oz copper, 5.6mmX5.6mm pad.  
7. Test condition for TO252: TA = +27°C, no air flow, device mounted on 2”X2” polyimide PCB, 1 oz copper, 2cmX2cm pad.  
8. Ensures correct operation without entering dropout. Device will continue to operate below this minimum input voltage under dropout conditions.  
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)  
Parameter  
Conditions  
TA  
Min  
Typ  
Max  
Unit  
V
(VIN-VOUT) = 2V, IO = 10mA  
25  
1.238  
1.250  
1.263  
Reference Voltage  
ZLDO1117-ADJ  
VOUT+1.4V < VIN< 10V,  
10mA < IO< 1A  
FT  
1.225  
1.275  
IO = 10mA, VIN = 3.2V  
25  
FT  
25  
FT  
25  
FT  
25  
FT  
25  
FT  
25  
FT  
25  
FT  
25  
FT  
1.188  
1.176  
1.485  
1.470  
1.782  
1.764  
2.475  
2.450  
3.267  
3.235  
4.95  
1.200  
1.500  
1.800  
2.500  
3.300  
5.000  
1.212  
1.224  
1.515  
1.530  
1.818  
1.836  
2.525  
2.550  
3.333  
3.365  
5.05  
V
ZLDO1117-1.2  
ZLDO1117-1.5  
ZLDO1117-1.8  
ZLDO1117-2.5  
ZLDO1117-3.3  
ZLDO1117-5.0  
10mA< IO< 1A, 2.7V <VIN< 12V  
IO = 10mA, VIN = 3.5V  
V
V
0 < IO< 1A, 2.9V <VIN< 12V  
IO = 10mA, VIN = 3.8V  
0 < IO< 1A, 3.2V <VIN< 12V  
IO = 10mA, VIN = 4.5V  
Output Voltage  
V
0 < IO< 1A, 3.9V <VIN< 12V  
IO = 10mA, VIN = 5.3V  
V
0 < IO< 1A, 4.7V <VIN < 12V  
IO = 10mA, VIN = 7V  
V
0 < IO< 1A, 6.4V <VIN < 12V  
4.900  
5.100  
0.1  
ZLDO1117-ADJ  
ZLDO1117-1.2  
IO = 10mA,  
VOUT+1.5V<VIN<12V  
%
%
0.2  
Line Regulation  
0.1  
IO = 0mA,  
VOUT+1.5V<VIN<12V  
ZLDO1117-xx  
0.2  
Notes:  
9. See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant  
junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package.  
10. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference between input  
and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.  
3 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Electrical Characteristics (cont.) (@TA = +25°C, unless otherwise specified.)  
Parameter  
Conditions  
TA  
25  
Min  
Typ  
Max  
0.2  
0.4  
0.2  
0.4  
3
Unit  
%
VIN=3.3V,VADJ=0, 10mA<IO<1A,  
(Notes 9, 10)  
ZLDO1117-ADJ  
ZLDO1117-1.2  
ZLDO1117-1.5  
ZLDO1117-1.8  
ZLDO1117-2.5  
ZLDO1117-3.3  
ZLDO1117-5.0  
FT  
25  
%
VIN=2.7V, 10mA < IO < 1A,  
(Notes 9, 10)  
FT  
VIN = 3V, 0 < IO< 1A,  
(Notes 9, 10)  
25  
mV  
mV  
mV  
mV  
mV  
FT  
6
VIN = 3.3V, 0 < IO< 1A,  
(Notes 9, 10)  
25  
4
Load Regulation  
FT  
8
VIN = 4V, 0 < IO< 1A,  
(Notes 9, 10)  
25  
5
FT  
10  
6.6  
13  
10  
20  
1.2  
1.3  
1.35  
VIN = 4.8V, 0 < IO< 1A,  
(Notes 9, 10)  
25  
FT  
VIN = 6.5V, 0 < IO< 1A,  
(Notes 9, 10)  
25  
FT  
25  
1.11  
ZLDO1117-  
ADJ/1.2/1.5/1.8/2.5/  
3.3/5.0  
Dropout Voltage  
0 ~ 125  
FT  
IO = 1A, ΔVOUT = 1%VOUT  
V
A
(VIN-VOUT  
)
ZLDO1117-  
ADJ/1.2/1.5/1.8/2.5/  
3.3/5.0  
25  
FT  
Current Limit  
(VIN-VOUT) = 5V  
1. 1  
ZLDO1117-ADJ  
ZLDO1117-1.2  
Minimum Load Current  
(Note 8)  
VIN = <18V  
FT  
FT  
FT  
25  
25  
2
4
5
mA  
mA  
µA  
ZLDO1117-xx  
VIN< 18V, IO = 0mA  
VIN = 7V  
Quiescent current  
10  
ZLDO1117-ADJ  
ZLDO1117-1.2  
GND current  
35  
120  
0.1  
30ms pulse  
Thermal Regulation  
Ripple Rejection  
Temperature Stability  
%/W  
dB  
f = 120Hz, COUT = 25µF Tantalum,  
IOUT = 100mA, ZLDO1117-XXX VIN = VOUT+3V  
60  
80  
IO = 10mA  
0.5  
%
Notes:  
8. See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant  
junctiontemperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package.  
9. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the difference between input  
and output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.  
4 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Typical Characteristics  
0.5  
0.06  
0.05  
0.04  
0.03  
0.02  
0.01  
0
0.4  
Adjustable version  
ILOAD = 10mA  
0.3  
VOUT+1.5V<VIN<12V, IOUT=10mA  
0.2  
0.1  
0
-0.1  
-0.2  
-0.3  
-0.4  
-0.5  
-40  
-25  
-10  
5
20  
35  
50  
65  
80  
95  
110  
125  
-0.01  
Temperature (°C)  
-50  
-25  
0
25  
50  
75  
100  
125  
Temperature (C)  
Output Voltage Variation vs. Temperature  
Line Regulation vs. Temperature  
0.25  
0.2  
1.4  
1.3  
1.2  
1.1  
1
VIN=3.3V, 10mA<IOUT<1A  
TJ = 25ºC  
VOUT = 1% of VOUT  
0.15  
0.1  
0.9  
0.8  
0.7  
0.6  
0.05  
0
-50  
-25  
0
25  
50  
75  
100  
125  
0
0.2  
0.4  
0.6  
0.8  
1
IOUT (A)  
Temperature (°C)  
Load Regulation vs. Temperature  
Drop-Out Voltage vs. Current  
70  
60  
50  
40  
30  
20  
10  
0
Dropout vs Temperature  
1.4  
1.3  
1.2  
1.1  
1
IOUT=1A  
VOUT = 1% of VOUT  
0.9  
0.8  
-50  
-25  
0
25  
50  
75  
100  
125  
-50  
-25  
0
25  
50  
75  
100  
125  
Temperature (°C)  
Temperature (°C)  
Drop-Out Voltage vs. Temperature  
Adjust Pin Input Current  
5 of 14  
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© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Typical Characteristics  
ZLDO1117-2.5V  
CIN = 1µF, COUT = 10µFTANT  
IPRELOAD = 100mA, Istep = 500mA  
ZLDO1117-2.5V  
CIN = 1µF, COUT = 4.7µF MLCC  
IPRELOAD = 100mA, ISTEP = 500mA  
10mV  
0
10mV  
0
-10mV  
-10mV  
600mA  
100mA  
600mA  
100mA  
Transient Load Regulation with 10µF Tantalum  
Capacitor  
Transient Load Regulation with 4.7µF MLCC Capacitor  
ZLDO1117 2.5V  
CIN = 1µF, COUT = 4.7µF MLCC  
ILOAD = 100mA  
10  
0
5V  
4V  
10µs/div  
Transient Line Regulation with 4.7µF MLCC Capacitor  
90  
85  
80  
75  
70  
65  
60  
55  
50  
ILOAD = 100mA, VIN - VOUT = 3V  
10  
100  
1,000  
Frequency (Hz)  
10,000  
100,000  
Ripple Rejection  
6 of 14  
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© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Application Information  
The ZLDO1117 family of quasi-LDO regulators is easy to use. They are protected against short circuit and thermal overloads. (see block  
diagram).  
Thermal protection circuitry will shut down the regulator should the junction temperature exceed +150°C at the sense point. The ZLDO1117 is  
pin compatible with similar ‘1117 regulators and offers extended temperature range and improved regulation specifications.  
Operation  
The ZLDO1117 develops a 1.25V reference voltage between the output and the adjust terminal (see block diagram). By placing a resistor  
between these two terminals, a constant current is caused to flow through R1 and down through R2. For fixed output variants Resistors R1 and  
R2 are internal.  
Stability  
The ZLDO1117 requires an output capacitor as part of the device frequency compensation. As part of its improved performance over industry  
standard 1117 the ZLDO1117 is suitable for use with MLCC (Multi Layer Ceramic Chip) capacitors. A minimum of 4.7µF ceramic X7R, 4.7µF  
tantalum, or 47 µF of aluminum electrolytic is required. The ESR of the output capacitor should be less than 0.5. Surface mount tantalum  
capacitors, which have very low ESR, are available from several manufacturers. When using MLCC capacitors avoid the use of Y5V dielectrics.  
Load Regulation  
For improved load regulation the ZLDO1117-ADJ should have the upper feedback resistor, R1, connected as close as possible to VOUT and the  
lower resistor, R2, connected as close as possible to the load GND return. This helps reduce any parasitic resistance in series with the load.  
Thermal Considerations  
ZLDO1117 series regulators have internal thermal limiting circuitry designed to protect the device during overload conditions. For continuous  
normal load conditions however, the maximum junction temperature rating of +125°C must not be exceeded.  
It is important to give careful consideration to all sources of thermal resistance from junction to ambient. For the SOT223-3L and TO252-3L  
packages, which are designed to be surface mounted, additional heat sources mounted near the device must also be considered. Heat sinking is  
accomplished using the heat spreading capability of the PCB and its copper traces. The θJC (junction to tab)of the TO252-3L and SOT223-3L are  
+12°C/W and +16°C/W respectively.  
Thermal resistances from tab to ambient can be as low as +30°C/W. The total thermal resistance from junction to ambient can be as low as  
+42 to +46°C/W. This requires a reasonable sized PCB with at least one layer of copper to spread the heat across the board and couple it into  
the surrounding air. Datasheet specifications using 2 oz copper and a 5mmx5mm pad with TA = +27°C, no air flow yielded θJA (junction to tab) of  
+73°C/W and +107°C/W for TO252-3L and SOT223-3L respectively.  
The thermal resistance for each application will be affected by thermal interactions with other components on the board. Some experimentation  
will be necessary to determine the actual value.  
Ripple Rejection  
When using the ZLDO1117 adjustable device the adjust terminal can be bypassed to improve ripple rejection. When the adjust terminal is  
bypassed the required value of the output capacitor increases.  
The device will require an output capacitor of 22µF tantalum or 150µF aluminum electrolytic when the adjust pin is bypassed. Normally, capacitor  
values on the order of 100µF are used in the output of many regulators to ensure good load transient response with large load current changes.  
Output capacitance can be increased without limit and larger values of output capacitance further improve stability and transient response.  
The curves for Ripple Rejection were generated using an adjustable device with the adjust pin bypassed. These curves will hold true for all  
values of output voltage. For proper bypassing, and ripple rejection approaching the values shown, the impedance of the adjust pin capacitor, at  
the ripple frequency, should be < R1. R1 is normally in the range of 100to 200. The size of the required adjust pin capacitor is a function of  
the input ripple frequency. At 120Hz, with R1 = 100, the adjust pin capacitor should be >13µF. At 10kHz only 0.16µF is needed.  
For fixed voltage devices, and adjustable devices without an adjust pin capacitor, the output ripple will increase as the ratio of the output voltage  
to the reference voltage (VOUT/VREF). For example, with the output voltage equal to 5V, the output ripple will be increased by the ratio of 5V/1.25V.  
It will increase by a factor of four. Ripple rejection will be degraded by 12dB from the value shown on the curve.  
7 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Typical Application Circuits  
Using  
R2  
R1  
VOUT = 1.25 1+  
then the output voltage becomes:  
330  
110  
VOUT = 1.25 1+  
= 5.0V  
Figure 1 Basic Adjustable Regulator with 5V Output  
Figure 2 Adjustable Regulator with IADJ Errors  
R2  
R1  
VOUT = 1.25 1+  
+ IADJ R2  
Because IADJ typically is 55μA, its effect is negligible in most applications.  
330  
110  
VOUT = 1.25 1+  
+ 55 106 330 = 5.02V ~ 0.4%  
A. Output capacitor selection is critical for regulator stability. Larger Cout values benefit the regulator by improving transient response and loop  
stability.  
B. CADJ can be used to improve ripple rejection. If CADJ is used, a Cout that is larger in value than CADJ must be used.  
C. Cin is recommended if ZLDO1117 is not located near the power supply filter.  
D. An external diode is recommended to protect the regulator if the input instantaneously is shorted to GND.  
E. This device is designed to be stable with tantalum and MLCC capacitors with an ESR less than 0.47.  
8 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Other Application Circuits  
Figure 3 ZLDO1117 with Extended Output Voltage  
ZLDO1117  
OUT  
VOUT  
VIN  
IN  
R1  
121  
1%  
ADJ  
C1  
10 F  
C2  
100 F  
T1  
MMBT3904  
TTL  
R2  
365Ω  
1%  
R3  
1k  
R4  
1k  
Figure 4 ZLDO1117 with Disable Function  
ZLDO1117x50  
IN OUT  
AC  
IN  
ADJ  
C1  
C2  
10 F  
100 F  
VOUT = -5V  
Figure 5 ZLDO1117 as a Negative LDO  
9 of 14  
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© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Ordering Information  
Packaging  
(Note 11)  
Part Number  
Output Voltage  
Status  
Reel Quantity  
Tape width  
Reel size  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
Active  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
16 mm  
12 mm  
ZLDO1117KTC  
ZLDO1117GTA  
TO252  
SOT223  
TO252  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
2500  
1000  
13”  
7”  
Adjustable  
1.2V  
13”  
7”  
ZLDO1117K12TC  
ZLDO1117G12TA  
ZLDO1117K15TC  
ZLDO1117G15TA  
ZLDO1117K18TC  
ZLDO1117G18TA  
ZLDO1117K25TC  
ZLDO1117G25TA  
ZLDO1117K33TC  
ZLDO1117G33TA  
ZLDO1117K50TC  
ZLDO1117G50TA  
ZLDO1117QKTC  
ZLDO1117QGTA  
ZLDO1117QK12TC  
ZLDO1117QG12TA  
ZLDO1117QK15TC  
ZLDO1117QG15TA  
ZLDO1117QK18TC  
ZLDO1117QG18TA  
ZLDO1117QK25TC  
ZLDO1117QG25TA  
ZLDO1117QK33TC  
ZLDO1117QG33TA  
ZLDO1117QK50TC  
ZLDO1117QG50TA  
SOT223  
TO252  
13”  
7”  
1.5V  
SOT223  
TO252  
13”  
7”  
1.8V  
SOT223  
TO252  
13”  
7”  
2.5V  
SOT223  
TO252  
13”  
7”  
3.3V  
SOT223  
TO252  
13”  
7”  
5.0V  
SOT223  
TO252  
13”  
7”  
Adjustable  
1.2V  
SOT223  
TO252  
13”  
7”  
SOT223  
TO252  
13”  
7”  
1.5V  
SOT223  
TO252  
13”  
7”  
1.8V  
SOT223  
TO252  
13”  
7”  
2.5V  
SOT223  
TO252  
13”  
7”  
3.3V  
SOT223  
TO252  
13”  
7”  
5.0V  
SOT223  
Note:  
11. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at  
http://www.diodes.com/datasheets/ap02001.pdf.  
10 of 14  
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© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
Marking Information  
TO252  
SOT223  
11 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Package Outline Dimensions (All dimensions in mm.)  
SOT223  
SOT223  
Dim Min Max Typ  
A
1.55 1.65 1.60  
A1 0.010 0.15 0.05  
b1  
b2  
C
D
E
E1  
e
e1  
L
2.90 3.10 3.00  
0.60 0.80 0.70  
0.20 0.30 0.25  
6.45 6.55 6.50  
3.45 3.55 3.50  
6.90 7.10 7.00  
4.60  
2.30  
0.85 1.05 0.95  
0.84 0.94 0.89  
Q
All Dimensions in mm  
A
A1  
TO252  
TO252  
Dim Min Max Typ  
E
b3  
A
2.19 2.39 2.29  
A
A1 0.00 0.13 0.08  
A2 0.97 1.17 1.07  
c2  
L3  
b
0.64 0.88 0.783  
b2 0.76 1.14 0.95  
b3 5.21 5.46 5.33  
c2 0.45 0.58 0.531  
E1  
A2  
D
H
D
6.00 6.20 6.10  
D1 5.21  
e
2.286  
E
6.45 6.70 6.58  
L4  
A1  
E1 4.32  
H
L
9.40 10.41 9.91  
1.40 1.78 1.59  
L
e
L3 0.88 1.27 1.08  
L4 0.64 1.02 0.83  
3X b  
2X b2  
a
a
0°  
10°  
All Dimensions in mm  
12 of 14  
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© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
Suggested Pad Layout  
SOT223  
X1  
Dimensions Value (in mm)  
X1  
X2  
Y1  
Y2  
C1  
C2  
3.3  
1.2  
1.6  
1.6  
6.4  
2.3  
Y1  
C1  
Y2  
C2  
X2  
TO252  
X2  
Dimensions  
Value (in mm)  
Z
11.6  
1.5  
7.0  
2.5  
7.0  
6.9  
2.3  
Y2  
X1  
X2  
Y1  
Y2  
C
Z
C
E1  
Y1  
X1  
E1  
13 of 14  
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July 2012  
© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  
A Product Line of  
Diodes Incorporated  
ZLDO1117  
IMPORTANT NOTICE  
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,  
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).  
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes  
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the  
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or  
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume  
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated  
website, harmless against all damages.  
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.  
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and  
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or  
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.  
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings  
noted herein may also be covered by one or more United States, international or foreign trademarks.  
LIFE SUPPORT  
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express  
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:  
A. Life support devices or systems are devices or systems which:  
1. are intended to implant into the body, or  
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the  
labeling can be reasonably expected to result in significant injury to the user.  
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the  
failure of the life support device or to affect its safety or effectiveness.  
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and  
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any  
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related  
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its  
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.  
Copyright © 2012, Diodes Incorporated  
www.diodes.com  
14 of 14  
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© Diodes Incorporated  
ZLDO1117  
Document number: DS32018 Rev. 6 - 2  

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