MIC5365-2.0YC5-TR [MICROCHIP]

2V FIXED POSITIVE LDO REGULATOR, 0.38V DROPOUT, PDSO5;
MIC5365-2.0YC5-TR
型号: MIC5365-2.0YC5-TR
厂家: MICROCHIP    MICROCHIP
描述:

2V FIXED POSITIVE LDO REGULATOR, 0.38V DROPOUT, PDSO5

光电二极管 输出元件 调节器
文件: 总20页 (文件大小:602K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
MIC5365/6  
High-Performance Single 150mA LDO  
General Description  
Features  
The MIC5365/6 is an advanced general purpose linear  
regulator offering high power supply rejection (PSRR) in  
an ultra-small 1mm × 1mm package. The MIC5366  
includes an auto-discharge feature that is activated when  
the enable pin is low. The MIC5365/6 is capable of  
sourcing 150mA output current and offers high PSRR  
making it an ideal solution for any portable electronic  
application.  
Tiny 1mm × 1mm thin MLF, SC-70-5,  
and thin SOT23-5 packages  
Input voltage range: 2.5V to 5.5V  
150mA guaranteed output current  
Stable with 1µF ceramic output capacitors  
Low dropout voltage – 155mV @ 150mA  
Excellent load/line transient response  
Low quiescent current – 29µA  
High PSRR – 70dB  
Ideal for battery-powered applications, the MIC5365/6  
offers 2% initial accuracy, low dropout voltage (155mV @  
150mA), and low ground current (typically 29µA). The  
MIC5365/6 can also be put into a zero-off-mode current  
state, drawing virtually no current when disabled.  
Output discharge circuit – MIC5366  
High output accuracy  
±2% initial accuracy  
The MIC5365/6 is available in several advanced packages  
including a lead-free (RoHS-compliant) 1mm × 1mm Thin  
MLF® occupying only 1mm2 of PCB area, a 75% reduction  
in board area compared to SC-70 and 2mm × 2mm MLF  
packages. It is also available in a thin SOT23-5 package.  
Thermal-shutdown and current-limit protection  
Applications  
Mobile phones  
Digital cameras  
The MIC5365/6 has an operating junction temperature  
range of –40°C to 125°C.  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
GPS, PDAs, PMP, handhelds  
Portable electronics  
___________________________________________________________________________________________________________  
Typical Application  
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
Revision 3.1  
July 16, 2013  
Micrel, Inc.  
MIC5365/6  
Block Diagrams  
MIC5365 Block Diagram  
MIC5366 Block Diagram  
Revision 3.1  
July 16, 2013  
2
Micrel, Inc.  
MIC5365/6  
Ordering Information  
Marking  
Part Number  
Output  
Voltage  
Temperature Range  
Package  
Lead Finish  
Code  
MIC5365-1.0YMT  
MIC5365-1.2YMT  
MIC5365-1.3YMT  
MIC5365-1.5YMT  
MIC5365-1.8YMT  
MIC5365-2.0YMT  
MIC5365-2.5YMT  
MIC5365-2.6YMT  
MIC5365-2.7YMT  
MIC5365-2.8YMT  
MIC5365-2.85YMT  
MIC5365-2.9YMT  
MIC5365-3.0YMT  
MIC5365-3.1YMT  
MIC5365-3.3YMT  
MIC5365-1.0YC5  
MIC5365-1.2YC5  
MIC5365-1.3YC5  
MIC5365-1.5YC5  
MIC5365-1.8YC5  
MIC5365-2.0YC5  
MIC5365-2.5YC5  
MIC5365-2.6YC5  
MIC5365-2.7YC5  
MIC5365-2.8YC5  
MIC5365-2.85YC5  
MIC5365-2.9YC5  
MIC5365-3.0YC5  
MIC5365-3.3YC5  
MIC5365-1.2YD5  
MIC5365-1.8YD5  
MIC5365-2.8YD5  
MIC5365-2.85YD5  
MIC5365-3.3YD5  
MIC5366-1.0YMT*  
MIC5366-1.2YMT*  
MIC5366-1.3YMT*  
MIC5366-1.5YMT*  
MIC5366-1.8YMT*  
MIC5366-2.0YMT*  
MIC5366-2.5YMT*  
MIC5366-2.6YMT*  
MIC5366-2.7YMT*  
5C  
54  
1.0V  
1.2V  
1.3V  
1.5V  
1.8V  
2.0V  
2.5V  
2.6V  
2.7V  
2.8V  
2.85V  
2.9V  
3.0V  
3.1V  
3.3V  
1.0V  
1.2V  
1.3V  
1.5V  
1.8V  
2.0V  
2.5V  
2.6V  
2.7V  
2.8V  
2.85V  
2.9V  
3.0V  
3.3V  
1.2V  
1.8V  
2.8V  
2.85V  
3.3V  
1.0V  
1.2V  
1.3V  
1.5V  
1.8V  
2.0V  
2.5V  
2.6V  
2.7V  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
SC-70-5  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
55  
5F  
5G  
5H  
5J  
5K  
5L  
5M  
5N  
5O  
5P  
5Q  
5S  
65C  
654  
655  
65F  
65G  
65H  
65J  
65K  
65L  
65M  
65N  
65O  
65P  
65S  
645  
6G5  
6M5  
6N5  
6S5  
6C  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
5-Pin TSOT23  
5-Pin TSOT23  
5-Pin TSOT23  
5-Pin TSOT23  
5-Pin TSOT23  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
64  
65  
6F  
6G  
6H  
6J  
6K  
6L  
Revision 3.1  
July 16, 2013  
3
Micrel, Inc.  
MIC5365/6  
Ordering Information (Continued)  
Marking  
Code  
Output  
Voltage  
Part Number  
Temperature Range  
Package  
Lead Finish  
MIC5366-2.8YMT*  
MIC5366-2.85YMT*  
MIC5366-2.9YMT*  
MIC5366-3.0YMT*  
MIC5366-3.1YMT*  
MIC5366-3.3YMT*  
MIC5366-1.0YC5*  
MIC5366-1.2YC5*  
MIC5366-1.3YC5*  
MIC5366-1.5YC5*  
MIC5366-1.8YC5*  
MIC5366-2.0YC5*  
MIC5366-2.5YC5*  
MIC5366-2.6YC5*  
MIC5366-2.7YC5*  
MIC5366-2.8YC5*  
MIC5366-2.85YC5*  
MIC5366-2.9YC5*  
MIC5366-3.0YC5*  
MIC5366-3.3YC5*  
Notes:  
6M  
6N  
2.8V  
2.85V  
2.9V  
3.0V  
3.1V  
3.3V  
1.0V  
1.2V  
1.3V  
1.5V  
1.8V  
2.0V  
2.5V  
2.6V  
2.7V  
2.8V  
2.85V  
2.9V  
3.0V  
3.3V  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
–40°C to +125°C  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
4-Pin 1mm × 1mm Thin MLF  
SC-70-5  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
6O  
6P  
6Q  
6S  
66C  
664  
665  
66F  
66G  
66H  
66J  
66K  
66L  
66M  
66N  
66O  
66P  
66S  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
SC-70-5  
1. Other voltages available. Contact Micrel for details.  
2. Under bar symbol ( _ ) may not be to scale.  
3. Thin MLF = Pin 1 identifier.  
4. Thin MLF is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.  
*
MIC5366 offers Auto-Discharge function.  
Revision 3.1  
July 16, 2013  
4
Micrel, Inc.  
MIC5365/6  
Pin Configuration  
4-Pin 1mm × 1mm Thin MLF (MT)  
Fixed Version  
5-Pin Thin SOT23 (D5)  
Fixed Version  
5-Pin SC-70 (C5)  
Fixed Version  
Pin Description  
Pin Name  
Thin MLF-4  
Pin Name  
TSOT23-5  
Pin Name  
SC-70-5  
Pin Number  
Pin Function  
1
1
2
VOUT  
Output Voltage.  
Supply Input.  
Ground  
VIN  
GND  
VIN  
GND  
GND  
Enable Input: Active High. High = ON; Low = OFF. Do not leave  
floating.  
3
EN  
EN  
EN  
4
4
VIN  
NC  
NC  
Supply Input.  
No connect. Not internally connected.  
Output Voltage.  
5
VOUT  
NA  
VOUT  
NA  
EP  
HS Pad  
Exposed Heatsink Pad.  
Revision 3.1  
July 16, 2013  
5
Micrel, Inc.  
MIC5365/6  
Absolute Maximum Ratings(1)  
Operating Ratings(2)  
Supply Voltage (VIN)............................................... 0V to 6V  
Enable Voltage (VEN)..............................................0V to VIN  
Power Dissipation (PD)...........................Internally Limited(3)  
Lead Temperature (soldering, 3µsec)........................ 260°C  
Junction Temperature (TJ) ........................40°C to +150°C  
Storage Temperature (Ts) .........................65°C to +150°C  
ESD Rating(4)..................................................................2kV  
Supply Voltage (VIN)......................................... 2.5V to 5.5V  
Enable Voltage (VEN).............................................. 0V to VIN  
Junction Temperature (TJ) ........................40°C to +125°C  
Junction Thermal Resistance  
1mm × 1mm Thin MLF-4 (θJA).........................240°C/W  
SC-70-5 (θJA) ................................................256.5°C/W  
Thin SOT23-5 (θJA)..........................................253°C/W  
Electrical Characteristics(5)  
VIN = VEN = VOUT + 1V; CIN = COUT = 1µF; IOUT = 100µA; TJ = 25°C, bold values indicate –40°C to +125°C, unless noted.  
Parameter  
Condition  
Min.  
–2.0  
–3.0  
Typ.  
Max.  
+2.0  
+3.0  
0.3  
1
Units  
%
Variation from nominal VOUT  
Variation from nominal VOUT; –40°C to +125°C  
VIN = VOUT +1V to 5.5V; IOUT = 100µA  
IOUT = 100µA to 150mA  
Output Voltage Accuracy  
%
Line Regulation  
Load Regulation(6)  
0.02  
0.3  
55  
%
%
110  
310  
135  
380  
39  
I
I
OUT = 50mA; VOUT 2.8V  
OUT = 150mA; VOUT 2.8V  
mV  
mV  
mV  
mV  
µA  
155  
60  
Dropout Voltage(7)  
IOUT = 50mA; VOUT < 2.8V  
IOUT = 150mA; VOUT < 2.8V  
IOUT = 0mA  
180  
29  
Ground Pin Current(8)  
Ground Pin Current in Shutdown  
VEN 0.2V  
0.05  
80  
1
µA  
f = up to 1kHz; COUT = 1µF  
f = 1kHz – 10kHz; COUT = 1µF  
VOUT = 0V  
dB  
Ripple Rejection  
65  
dB  
Current Limit  
200  
325  
200  
550  
mA  
µVRMS  
Output Voltage Noise  
COUT = 1µF, 10Hz to 100kHz  
Auto-Discharge NFET  
Resistance  
MIC5366 Only; VEN = 0V; VIN = 3.6V; IOUT = –3mA  
30  
Enable Input  
0.2  
Logic Low  
Logic High  
V
V
Enable Input Voltage  
1.2  
1
1
V
IL 0.2V  
0.01  
0.01  
50  
µA  
µA  
µs  
Enable Input Current  
VIH 1.2V  
125  
Turn-on Time  
COUT = 1µF; IOUT = 150mA  
Notes:  
1. Exceeding the absolute maximum rating may damage the device.  
2. The device is not guaranteed to function outside its operating rating.  
3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = TJ(max) – TA) / θJA. Exceeding the maximum allowable power  
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.  
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5kΩ in series with 100pF.  
5. Specification for packaged product only.  
6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are  
covered by the thermal regulation specification.  
7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.  
For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.  
8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin  
current.  
Revision 3.1  
July 16, 2013  
6
Micrel, Inc.  
MIC5365/6  
Typical Characteristics  
Power Supply  
Rejection Ratio  
Dropout Voltage  
vs. Load Current  
Dropout Voltage  
vs. Temperature  
160  
140  
120  
100  
80  
200  
150  
100  
50  
VOUT = 3.3V  
IN = COUT = 1µF  
C
100µA  
150mA  
100mA  
50mA  
75mA  
150mA  
60  
40  
V
V
= V  
+1V  
IN  
OUT  
C
OUT  
= 2.5V  
= 1µF  
VOUT = 3.3V  
CIN = COUT = 1µF  
20  
10mA  
OUT  
0
0
0
-40 -20  
0
20 40 60 80 100 120  
10  
100  
1k  
10k 100k 1M  
02  
55 07  
5
100 125 150  
TEMPERATURE (°C)  
FREQUENCY (Hz)  
LOAD CURRENT (mA)  
Ground Current  
vs. Supply Voltage  
Ground Current  
vs. Load Current  
Ground Current  
vs. Temperature  
38  
40  
38  
36  
34  
32  
30  
28  
40  
150mA  
38  
36  
34  
32  
30  
28  
26  
24  
22  
20  
36  
34  
32  
30  
28  
26  
24  
22  
20  
150mA  
100µA  
100mA  
50mA  
100µA  
V
V
C
= V  
V
IN = VEN = VOUT + 1V  
VOUT = 3.3V  
IN = COUT = 1µF  
VIN = VEN = VOUT + 1V  
VOUT = 3.3V  
CIN = COUT = 1µF  
EN  
IN  
= 3.3V  
OUT  
= C  
= 1µF  
C
IN  
OUT  
-40 -20  
0 20 40 60 80 100 120  
TEMPERATURE (°C)  
2.5 3.0 3.5 4.0 4.5 5.0 5.5  
SUPPLY VOLTAGE (V)  
02  
55 07  
5
100 125 150  
LOAD CURRENT (mA)  
Output Voltage  
vs. Load Current  
Output Voltage  
vs. Supply Voltage  
Output Voltage  
vs. Temperature  
3.50  
3.4  
3.3  
3.2  
3.1  
3.0  
2.9  
2.8  
2.7  
2.6  
2.5  
3.5  
1mA  
3.45  
3.40  
3.35  
3.30  
3.25  
3.20  
3.15  
3.10  
3.4  
3.3  
3.2  
3.1  
3.0  
50mA  
150mA  
VIN = VOUT + 1V  
VOUT = 3.3V  
CIN = COUT = 1µF  
IOUT = 150m A  
V
V
C
C
= V  
= V  
+ 1V  
OUT  
IN  
EN  
VEN = VIN  
VOUT = 3.3V  
IN = COUT = 1µF  
= 3.3V  
OUT  
= C  
= 1µF  
IN  
OUT  
C
= 1µF/10V  
OUT  
-40 -20  
0
20 40 60 80 100 120  
0
20 40 60 80 100 120 140 160  
LOAD CURRENT (mA)  
2.5 3.0 3.5 4.0 4.5 5.0 5.5  
SUPPLY VOLTAGE (V)  
TEMPERATURE (°C)  
Revision 3.1  
July 16, 2013  
7
Micrel, Inc.  
MIC5365/6  
Typical Characteristics (Continued)  
Current Limit  
Output Noise  
vs. Supply Voltage  
Spectral Density  
400  
10  
1
350  
300  
250  
200  
0.1  
0.01  
V
V
C
= V  
= 4.5V  
EN  
IN  
= 2.8V  
= 1µF  
OUT  
OUT  
V
C
= 3.3V  
= C  
OUT  
IN  
IN  
Noise (10Hz to 100kHz) = 198.19µV  
= C  
= 1µF  
RMS  
OUT  
0.001  
10 100 1k 10k 100k 1M 10M  
FREQUENCY (Hz)  
3.0  
3.5  
4.0  
4.5  
5.0  
5.5  
SUPPLY VOLTAGE (V)  
Revision 3.1  
July 16, 2013  
8
Micrel, Inc.  
MIC5365/6  
Functional Characteristics  
Revision 3.1  
July 16, 2013  
9
Micrel, Inc.  
MIC5365/6  
Application Information  
Enable/Shutdown  
MIC5365 and MIC5366 are Low noise 150mA LDOs.  
The MIC5366 includes an auto-discharge circuit that is  
switched on when the regulator is disabled through the  
Enable pin. The MIC5365/6 regulator is fully protected  
from damage due to fault conditions, offering linear  
current limiting and thermal shutdown.  
The MIC5365/6 comes with an active-high enable pin  
that allows the regulator to be disabled. Forcing the  
enable pin low disables the regulator and sends it into a  
“zero” off-mode-current state. In this state, current  
consumed by the regulator goes nearly to zero. Forcing  
the enable pin high enables the output voltage. The  
active-high enable pin uses CMOS technology and the  
enable pin cannot be left floating; a floating enable pin  
may cause an indeterminate state on the output.  
Input Capacitor  
The MIC5365/6 is a high-performance, high bandwidth  
device. An input capacitor of 1µF is required from the  
input to ground to provide stability. Low-ESR ceramic  
capacitors provide optimal performance at a minimum of  
space. Additional high-frequency capacitors, such as  
small-valued NPO dielectric-type capacitors, help filter  
out high-frequency noise and are good practice in any  
RF-based circuit. X5R or X7R dielectrics are  
recommended for the input capacitor. Y5V dielectrics  
lose most of their capacitance over temperature and are  
therefore, not recommended.  
Thermal Considerations  
The MIC5365/6 is designed to provide 150mA of  
continuous current in a very small package. Maximum  
ambient operating temperature can be calculated based  
on the output current and the voltage drop across the  
part. For example if the input voltage is 3.6V, the output  
voltage is 2.8V, and the output current = 150mA. The  
actual power dissipation of the regulator circuit can be  
determined using the equation:  
Output Capacitor  
= (VIN – VOUT1) I OUT + VIN IGND  
PD  
The MIC5365/6 requires an output capacitor of 1µF or  
greater to maintain stability. The design is optimized for  
use with low-ESR ceramic chip capacitors. High ESR  
capacitors are not recommended because they may  
cause high frequency oscillation. The output capacitor  
can be increased, but performance has been optimized  
for a 1µF ceramic output capacitor and does not improve  
significantly with larger capacitance.  
Because this device is CMOS and the ground current is  
typically <100µA over the load range, the power  
dissipation contributed by the ground current is < 1% and  
can be ignored for this calculation:  
PD = (3.6V – 2.8V) × 150mA  
PD = 0.120W  
X7R/X5R dielectric-type ceramic capacitors are  
recommended  
because  
of  
their  
temperature  
performance. X7R-type capacitors change capacitance  
by 15% over their operating temperature range and are  
the most stable type of ceramic capacitors. Z5U and  
Y5V dielectric capacitors change value by as much as  
50% and 60%, respectively, over their operating  
temperature ranges. To use a ceramic chip capacitor  
with Y5V dielectric, the value must be much higher than  
an X7R ceramic capacitor to ensure the same minimum  
capacitance over the equivalent operating temperature  
range.  
To determine the maximum ambient operating  
temperature of the package, use the junction-to-ambient  
thermal resistance of the device and the following basic  
equation:  
T
T  
A
J(max)  
P
=
D(MAX)  
θ
JA  
No-Load Stability  
TJ(max) = 125°C, the maximum junction temperature of the  
die, θJA thermal resistance = 250°C/W for the YMT  
package, 256.5°C/W for the SC-70-5 package and  
235°C/W for the MIC5365/6 in the TSOT23-5 package .  
Unlike many other voltage regulators, the MIC5365/6 will  
remain stable and in regulation with no load. This is  
especially important in CMOS RAM keep-alive  
applications.  
Revision 3.1  
July 16, 2013  
10  
Micrel, Inc.  
MIC5365/6  
Substituting PD for PD(max) and solving for the ambient  
operating temperature will give the maximum operating  
conditions for the regulator circuit. The junction-to-  
ambient thermal resistance for the minimum footprint is  
250°C/W.  
The maximum power dissipation must not be exceeded  
for proper operation.  
For example, when operating the MIC5365-2.8YMT at  
an input voltage of 3.6V and 150mA load with a  
minimum footprint layout, the maximum ambient  
operating temperature TA can be determined as follows:  
0.120W = (125°C – TA)/(250°C/W)  
TA = 95°C  
Therefore the maximum ambient operating temperature  
of 95°C is allowed in a 1mm x 1mm MLF package. For a  
full discussion of heat sinking and thermal effects on  
voltage regulators, refer to the “Regulator Thermals”  
section of Micrel’s Designing with Low-Dropout Voltage  
Regulators handbook. This information can be found on  
Micrel's website at:  
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf  
Revision 3.1  
July 16, 2013  
11  
Micrel, Inc.  
MIC5365/6  
Typical Application (YMT)  
Bill of Materials  
Item  
C1, C2  
U1  
Part Number  
Manufacturer Description  
Qty.  
2
GRM155R61A105KE15D  
MIC5365/6-xxYMT  
Murata(1)  
Capacitor, 1µF Ceramic, 10V, X5R, Size 0402  
Micrel, Inc.(2)  
High-Performance Single 150mA LDO  
1
Notes:  
1. Murata: www.murata.com.  
2. Micrel, Inc.: www.micrel.com.  
Revision 3.1  
July 16, 2013  
12  
Micrel, Inc.  
MIC5365/6  
Typical Application (YC5)  
Bill of Materials  
Item  
C1, C2  
U1  
Part Number  
Manufacturer Description  
Qty.  
2
C1005X5R1A105K  
MIC5365/6-xxYC5  
TDK(1)  
Capacitor, 1µF Ceramic, 10V, X5R, Size 0402  
Micrel, Inc.(2)  
High-Performance Single 150mA LDO  
1
Notes:  
1. TDK: www.tdk.com.  
2. Micrel, Inc.: www.micrel.com.  
Revision 3.1  
July 16, 2013  
13  
Micrel, Inc.  
MIC5365/6  
Typical Application (YD5)  
Bill of Materials  
Item  
C1, C2  
U1  
Part Number  
Manufacturer Description  
Qty.  
2
C1005X5R1A105K  
MIC5365/6-xxYD5  
TDK(1)  
Capacitor, 1µF Ceramic, 10V, X5R, Size 0402  
Micrel, Inc.(2)  
High-Performance Single 150mA LDO  
1
Notes:  
1. TDK: www.tdk.com.  
2. Micrel, Inc.: www.micrel.com.  
Revision 3.1  
July 16, 2013  
14  
Micrel, Inc.  
MIC5365/6  
PCB Layout Recommendations (1mm x 1mm Thin MLF)  
Top Layer  
Bottom Layer  
Revision 3.1  
July 16, 2013  
15  
Micrel, Inc.  
MIC5365/6  
PCB Layout Recommendations (SC-70-5)  
Top Layer  
Bottom Layer  
Revision 3.1  
July 16, 2013  
16  
Micrel, Inc.  
MIC5365/6  
Package Information(1)  
4-Pin 1mm × 1mm Thin MLF (MT)  
Note:  
1. Package information is correct as of the publication date. For updates and most current information, go to www.micrel.com.  
Revision 3.1  
July 16, 2013  
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Micrel, Inc.  
MIC5365/6  
Package Information(1) (Continued)  
5-Pin SC-70 (C5)  
Revision 3.1  
July 16, 2013  
18  
Micrel, Inc.  
MIC5365/6  
Package Information(1) (Continued)  
5-Pin Thin SOT23 (D5)  
Revision 3.1  
July 16, 2013  
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Micrel, Inc.  
MIC5365/6  
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA  
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com  
Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This  
information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,  
specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual  
property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability  
whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties  
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.  
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product  
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical  
implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A  
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully  
indemnify Micrel for any damages resulting from such use or sale.  
© 2008 Micrel, Incorporated.  
Revision 3.1  
July 16, 2013  
20  

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