MIC5371-G4YMT [MICROCHIP]

DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PDSO6;
MIC5371-G4YMT
型号: MIC5371-G4YMT
厂家: MICROCHIP    MICROCHIP
描述:

DUAL OUTPUT, FIXED POSITIVE LDO REGULATOR, PDSO6

光电二极管 输出元件 调节器
文件: 总13页 (文件大小:340K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
MIC5370/1  
High-Performance Dual 150mA LDO  
1.6mm x 1.6mm Thin MLF®  
General Description  
Features  
The MIC5370/1 is an advanced dual LDO ideal for  
powering general purpose portable devices. The  
MIC5370/1 provides two independently-controlled, high-  
performance 150mA LDOs in a tiny 1.6mm x 1.6mm Thin  
MLF® package.  
2.5V to 5.5V input voltage range  
Two 150mA output current LDOs  
High output accuracy  
±2% initial accuracy  
Low quiescent current – 32µA per LDO  
Stable with 1µF ceramic output capacitors  
Independent enable pins  
Low dropout voltage – 155mV at 150mA  
Thermal-shutdown protection  
Current-limit protection  
Output discharge circuit – MIC5371  
6-pin 1.6mm x 1.6mm Thin MLF® package  
Ideal for battery-powered applications, the MIC5370/1  
offers 2% initial accuracy, low dropout voltage (155mV @  
150mA) and low ground current (typically 32μA per LDO).  
The MIC5370/1 can also be put into a zero-off-mode  
current state, drawing virtually no current when disabled.  
When the MIC5371 is disabled an internal resistive load is  
automatically applied to the output to discharge the output  
capacitor. This LDO offers fast transient response and  
high PSRR while consuming a minimum operating current.  
The MIC5370/1 is available in fixed output voltages in a  
lead-free (RoHS-compliant) 6-pin 1.6mm x 1.6mm Thin  
MLF® package.  
Applications  
Camera phones  
Mobile phones  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
GPS, PMP, PDAs and handhelds  
Portable electronics  
___________________________________________________________________________________________________________  
Typical Application  
MIC5370/1-xxYMT  
I/O  
VIN  
VOUT1  
VOUT2  
VCORE  
EN1  
1µF  
1µF  
1µF  
VBAT  
EN2  
GND  
Camera DSP Power Supply Circuit  
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  
M9999-052011-C  
May 2011  
Micrel, Inc.  
MIC5370/1  
Block Diagrams  
VOUT1  
VOUT2  
VIN  
LDO1  
LDO2  
EN1  
EN2  
ENABLE  
REFERENCE  
GND  
MIC5370 Block Diagram  
VOUT1  
VOUT2  
VIN  
LDO1  
LDO2  
EN1  
EN2  
ENABLE  
AUTO  
DISCHARGE  
REFERENCE  
GND  
MIC5371 Block Diagram  
M9999-052011-C  
May 2011  
2
Micrel, Inc.  
MIC5370/1  
Ordering Information  
Junction  
Temperature  
Range  
Manufacturing  
Part Number  
Marking  
Code  
Lead  
Finish  
Part Number  
Voltage  
Package  
6-Pin 1.6mm × 1.6mm  
MIC5370-3.3/3.3YMT  
MIC5370-3.3/3.0YMT  
MIC5370-3.3/2.8YMT  
MIC5370-3.3/2.6YMT  
MIC5370-3.3/1.8YMT  
MIC5370-3.0/3.0YMT  
MIC5370-3.0/2.8YMT  
MIC5370-3.0/2.6YMT  
MIC5370-3.0/1.8YMT  
MIC5370-2.8/2.8YMT  
MIC5370-2.8/2.6YMT  
MIC5370-2.8/1.8YMT  
MIC5370-2.8/1.5YMT  
MIC5370-2.8/1.2YMT  
MIC5370-1.8/1.2YMT  
MIC5370-1.2/1.0YMT  
MIC5371-3.3/3.3YMT*  
MIC5371-3.3/3.0YMT*  
MIC5371-3.3/2.8YMT*  
MIC5371-3.3/1.8YMT*  
MIC5371-3.0/3.0YMT*  
MIC5370-SSYMT  
MIC5370-SPYMT  
MIC5370-SMYMT  
MIC5370-SKYMT  
MIC5370-SGYMT  
MIC5370-PPYMT  
MIC5370-PMYMT  
MIC5370-PKYMT  
MIC5370-PGYMT  
8SS  
SP8  
SM8  
S8K  
SG8  
P8P  
PM8  
P8K  
PG8  
3.3V/3.3V  
3.3V/3.0V  
3.3V/2.8V  
3.3V/2.6V  
3.3V/1.8V  
3.0V/3.0V  
3.0V/2.8V  
3.0V/2.6V  
3.0V/1.8V  
2.8V/2.8V  
2.8V/2.6V  
2.8V/1.8V  
2.8V/1.5V  
2.8V/1.2V  
1.8V/1.2V  
1.2V/1.0V  
3.3V/3.3V  
3.3V/3.0V  
3.3V/2.8V  
3.3V/1.8V  
3.0V/3.0V  
–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  
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  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
MIC5370-MMYMT MM8  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
MIC5370-MKYMT  
MIC5370-MGYMT  
MIC5370-MFYMT  
MIC5370-M4YMT  
MIC5370-G4YMT  
MIC5370-4CYMT  
MIC5371-SSYMT  
MIC5371-SPYMT  
MIC5371-SMYMT  
MIC5371-SGYMT  
MIC5371-PPYMT  
M8K  
MG8  
MF8  
J48  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
8G4  
84C  
9SS  
9SP  
9SM  
9SG  
9PP  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
M9999-052011-C  
May 2011  
3
Micrel, Inc.  
MIC5370/1  
Ordering Information (Continued)  
Junction  
Temperature  
Range  
Manufacturing  
Part Number  
Marking  
Code  
Lead  
Finish  
Part Number  
Voltage  
Package  
6-Pin 1.6mm × 1.6mm  
MIC5371-3.0/2.8YMT*  
MIC5371-2.8/2.8YMT*  
MIC5371-2.8/1.8YMT*  
MIC5371-2.8/1.5YMT*  
MIC5371-2.8/1.2YMT*  
MIC5371-1.8/1.2YMT*  
MIC5371-1.2/1.0YMT*  
MIC5371-PMYMT  
9PM  
3.0V/2.8V  
2.8V/2.8V  
2.8V/1.8V  
2.8V/1.5V  
2.8V/1.2V  
1.8V/1.2V  
1.2V/1.0V  
–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  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
MIC5371-MMYMT 9MM  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
MIC5371-MGYMT  
MIC5371-MFYMT  
MIC5371-M4YMT  
MIC5371-G4YMT  
MIC5371-4CYMT  
9MG  
9MF  
9M4  
9G4  
94C  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
6-Pin 1.6mm × 1.6mm  
Thin MLF®  
Note:  
1. Other voltages available. Contact Micrel for details.  
2. Thin MLF® Pin 1 Identifier =  
3. Thin MLF® is a GREEN RoHS-compliant package. Level finish is NiPdAu. Mold compound is Halogen Free.  
*
MIC5371 offers Auto-Discharge function.  
M9999-052011-C  
May 2011  
4
Micrel, Inc.  
MIC5370/1  
Pin Configuration  
VIN  
GND  
EN2  
1
2
3
6
5
4
VOUT1  
VOUT2  
EN1  
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)  
Pin Description  
Pin Number  
Pin Name Pin Function  
1
2
VIN  
Supply Input  
Ground  
GND  
Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off; Do not leave  
floating.  
3
4
EN2  
EN1  
Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off; Do not leave  
floating.  
5
6
VOUT2  
VOUT1  
HS Pad  
Regulator Output – LDO2  
Regulator Output – LDO1  
EPAD  
Heatsink Pad internally connected to ground.  
M9999-052011-C  
May 2011  
5
Micrel, Inc.  
MIC5370/1  
Absolute Maximum Ratings(1)  
Operating Ratings(2)  
Supply Voltage (VIN)........................................ –0.3V to +6V  
Enable Voltage (VEN1, VEN2)...............................0.3V to VIN  
Power Dissipation (PD)...........................Internally Limited(3)  
Lead Temperature (soldering, 10sec.)....................... 260°C  
Junction Temperature (TJ) ........................40°C to +125°C  
Storage Temperature (Ts) .........................65°C to +150°C  
ESD Rating(4)..................................................................2kV  
Supply Voltage (VIN)....................................... +2.5V to 5.5V  
Enable Voltage (VEN1, VEN2)............................... –0.3V to VIN  
Junction Temperature (TJ) ........................40°C to +125°C  
Junction Thermal Resistance  
1.6x1.6 Thin MLF®-6 (θJA) .................................90°C/W  
Electrical Characteristics(5)  
VIN = VEN1 = VEN2 = VOUT + 1V; higher of the two regulator outputs; IOUTLDO1 = IOUTLDO2 = 100µA; COUT1 = COUT2 = 1µF; 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  
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  
0.02  
0.3  
%/V  
%
1
110  
310  
IOUT = 50mA  
55  
Dropout Voltage  
mV  
µA  
I
OUT = 150mA  
155  
VEN1 = High; VEN2 = Low; IOUT = 0mA  
32  
32  
45  
45  
85  
1
Ground Pin Current  
V
EN1 = Low; VEN2 = High; IOUT = 0mA  
EN1 = VEN2 = High; IOUT1 = IOUT2 = 0mA  
V
57  
Ground Pin Current in Shutdown VEN1 = VEN2 = 0V  
0.05  
60  
µA  
dB  
Ripple Rejection  
Current Limit  
f = 1kHz; COUT = 1µF  
VOUT = 0V  
200  
325  
200  
550  
mA  
Output Voltage Noise  
COUT = 1µF, 10Hz to 100kHz  
µVRMS  
Auto-Discharge NFET  
Resistance  
MIC5371 Only; VEN1 = VEN2 = 0V; VIN = 3.6V  
30  
Enable Inputs (EN1/EN2)  
Logic Low  
Logic High  
VIL 0.2V  
VIH 1.2V  
COUT = 1µF  
0.2  
Enable Input Voltage  
V
1.2  
0.01  
0.01  
50  
1
1
Enable Input Current  
µA  
µs  
Turn-on Time  
125  
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, 1.5kin series with 100pF.  
5. Specification for packaged product only.  
M9999-052011-C  
May 2011  
6
Micrel, Inc.  
MIC5370/1  
Typical Characteristics  
Power Supply  
Rejection Ratio  
Output Voltage  
vs. Input Voltage  
Output Voltage  
vs. Output Current  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
2.90  
2.85  
2.80  
2.75  
2.70  
100µA  
LDO1-150mA  
LDO1-100µA  
50mA  
150mA  
LDO2-100µA  
LDO2-150mA  
V
V
C
= V = V  
+ 1V  
V
OUT1  
V
OUT2  
= 2.8V  
= 1.8V  
IN  
EN  
OUT  
V
V
= V = 3.8V  
= 1.8V  
= 1µF  
IN  
OUT  
C
EN  
= 2.8V  
OUT  
= C  
= 1µF  
C
IN  
= C  
=1µF  
IN  
OUT  
OUT  
OUT  
0
02  
55 07  
OUTPUT CURRENT (mA)  
5
100 125 150  
10 100 1k 10k 100k 1M 10M  
FREQUENCY (Hz)  
2.5 3.0 3.5 4.0 4.5 5.0 5.5  
INPUT VOLTAGE (V)  
Ground Current  
vs. Input Voltage  
Ground Current  
vs. Output Current  
Ground Current  
vs. Temperature  
40  
80  
60  
50  
40  
30  
20  
10  
0
50mA  
Dual Output  
38  
36  
34  
32  
30  
28  
26  
24  
22  
20  
Dual Outputs(100µA)  
70  
60  
50  
40  
30  
20  
10  
0
150mA  
Single Output(50mA)  
Single Output(100µA)  
Single Output  
100µA  
V
V
V
= 3.8V  
IN  
V
V
V
= V  
= 3.8V  
EN  
IN  
V
V
= V = 2.8V  
EN  
= 2.8V  
= 1.2V  
IN  
OUT1  
OUT2  
= 1.8V  
= 2.8V  
OUT1  
OUT2  
= 1.8V  
OUT2  
C
IN  
= C  
= 1µF  
C
IN  
= C  
= 1µF  
C
= C  
= 1µF  
OUT  
OUT  
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  
INPUT VOLTAGE (V)  
02  
55 07  
5
100 125 150  
OUTPUT CURRENT (mA)  
Dropout Voltage  
vs. Temperature  
Current Limit  
vs. Input Voltage  
Dropout Voltage  
vs. Output Current  
250  
200  
150  
100  
50  
500  
400  
300  
200  
100  
0
180  
CIN = COUT = 1µF  
160  
140  
120  
100  
80  
150mA  
LDO2  
LDO1  
100mA  
50mA  
60  
40  
V
V
= 1.8V  
= 2.8V  
OUT1  
V
= 2.8V  
OUT  
OUT2  
20  
10mA  
C
IN  
= C  
= 1µF  
OUT  
C
IN  
= C  
= 1µF  
OUT  
0
0
02  
55 07  
5
100 125 150  
-40 -20  
0
20 40 60 80 100 120  
2.5 3.0 3.5 4.0 4.5 5.0 5.5  
INPUT VOLTAGE (V)  
OUTPUT CURRENT (mA)  
TEMPERATURE (°C)  
Enable Voltage  
Output Noise  
vs. Input Voltage  
Spectral Density  
1.2  
1.1  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
10  
1
EN1 ON  
0.1  
EN1 OFF  
0.01  
0.001  
V
OUT1  
= 2.5V  
VIN = 4.5V  
VOUT = 1V  
COUT1 = COUT2 1µF  
C
IN  
= C  
= 1µF  
OUT  
Load = 150mA  
10 100 1k 10k 100k 1M 10M  
FREQUENCY (Hz)  
2.5 3.0 3.5 4.0 4.5 5.0 5.5  
INPUT VOLTAGE (V)  
M9999-052011-C  
May 2011  
7
Micrel, Inc.  
MIC5370/1  
Functional Characteristics  
M9999-052011-C  
May 2011  
8
Micrel, Inc.  
MIC5370/1  
When disabled the MIC5371 switches a 30(typical)  
load on the regulator output to discharge the external  
capacitor.  
Application Information  
MIC5370/1 is a dual 150mA LDO in a small 1.6mm x  
1.6mm package.. The MIC5371 includes an auto-  
discharge circuit for each of the LDO outputs that are  
activated when the output is disabled. The MIC5370/1  
regulator is fully protected from damage due to fault  
conditions through linear current limiting and thermal  
shutdown.  
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..  
Thermal Considerations  
The MIC5370/1 is designed to provide 150mA of  
continuous current for both outputs 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 for VOUT1, 1.8V  
for VOUT2 and the output current = 150mA. The actual  
power dissipation of the regulator circuit can be  
determined using the equation:  
Input Capacitor  
The MIC5370/1 is a high-performance, high bandwidth  
device. An input capacitor of 1µF capacitor 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.  
PD = (VIN – VOUT1) IOUT1 + (VIN – VOUT2) I OUT2 + VIN IGND  
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:  
Output Capacitor  
The MIC5370/1 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 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.  
PD = (3.6V – 2.8V) × 150mA + (3.6V - 1.8) × 150mA  
PD = 0.39W  
X7R/X5R dielectric-type ceramic capacitors are  
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:  
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.  
T
TA  
J(MAX)  
PD(MAX)  
=
θJA  
TJ(max) = 125°C, and the maximum junction temperature  
of the die, θJA, thermal resistance = 90°C/W.  
No-Load Stability  
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  
90°C/W.  
Unlike many other voltage regulators, the MIC5370/1 will  
remain stable and in regulation with no load. This is  
especially important in CMOS RAM keep-alive  
applications.  
The maximum power dissipation must not be exceeded  
for proper operation.  
Enable/Shutdown  
The MIC5370/1 comes with two active-high enable pins  
that allow each regulator to be disabled independently.  
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.  
M9999-052011-C  
May 2011  
9
Micrel, Inc.  
MIC5370/1  
For example, when operating the MIC5370-MGYMT at  
an input voltage of 3.6V and 150mA loads at each output  
with a minimum footprint layout, the maximum ambient  
operating temperature TA can be determined as follows:  
Therefore, a 2.8V/1.8V application with 150mA at each  
output current can accept an ambient operating  
temperature of 89.9°C in a 1.6mm x 1.6mm 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:  
0.39W = (125°C – TA)/(90°C/W)  
TA = 89.9°C  
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf  
M9999-052011-C  
May 2011  
10  
Micrel, Inc.  
MIC5370/1  
U1  
MIC5370/1-xxYMT  
J3  
VOUT1  
J5  
6
5
J1  
VIN  
1
3
VIN  
VOUT1  
VOUT2  
VOUT2  
J7  
EN1  
J8  
EN2  
4
EN1  
EN2  
GND  
C3  
C1  
C2  
2
1µF/10V  
1µF/10V  
1µF/10V  
J2  
J4  
GND  
GND  
J6  
GND  
Bill of Materials  
Item  
C1, C2, C3  
U1  
Part Number  
Manufacturer  
Murata(1)  
Description  
Qty.  
3
GRM188R60J225KE19D  
MIC5370/1-XXYMT  
Capacitor, 1µF Ceramic, 10V, X5R, Size 0402  
Dual, 150mA LDO, Size 1.6mm x 1.6mm Thin MLF®  
Micrel(2)  
1
Notes:  
1. Murata: www.murata.com  
2. Micrel, Inc.: www.micrel.com  
M9999-052011-C  
May 2011  
11  
Micrel, Inc.  
MIC5370/1  
PCB Layout Recommendations  
Top Layer  
Bottom Layer  
M9999-052011-C  
May 2011  
12  
Micrel, Inc.  
MIC5370/1  
Package Information  
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)  
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.  
M9999-052011-C  
May 2011  
13  

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