首页 |元器件品牌

MIC2225-4OYMT-TR [MICROCHIP]

1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10;
MIC2225-4OYMT-TR
型号： MIC2225-4OYMT-TR
厂家： MICROCHIP    MICROCHIP
描述：

1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10

开关 光电二极管
文件： 总15页 (文件大小：356K)
中文：  中文翻译
下载：  下载PDF数据表文档文件
 查看货源
MIC2225  
2MHz 600mA Synchronous Buck  
Regulator with 300mA LDO  
General Description  
Features  
The Micrel MIC2225 is a dual output regulator featuring a  
high efficiency 2MHz PWM synchronous buck (step-down)  
regulator and a 300mA LDO. The MIC2225 is an ultra-low  
noise, small size, and high efficiency solution for portable  
power applications, providing core and I/O supply rails for  
applications like application processors, camera DSPs and  
multimedia chipsets.  
DC-DC Converter  
• 2.7 to 5.5V supply voltage  
• 2MHz PWM mode  
• Output current to 600mA  
• >95% efficiency  
• 100% maximum duty cycle  
• Fixed output voltage option down to 1V  
• Ultra-fast transient response  
• Stable with 2.2µF ceramic output capacitor  
• Fully integrated MOSFET switches  
• Micropower shutdown (1mA in shutdown)  
• Thermal shutdown and current limit protection  
• Pb-free 10-pin 2mm x 2mm Thin MLF® package  
• –40°C to +125°C junction temperature range  
LDO  
In PWM mode, the MIC2225 operates with a constant  
2MHz frequency. The MIC2225 switching regulator  
operates from 2.7V to 5.5V input and features internal  
power MOSFETs that can supply up to 600mA output  
current in PWM mode.  
The MIC2225 is available in the 10-pin 2mm x 2mm Thin  
MLF® package with a junction operating range from –40°C  
to +125°C.  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
• VIN range 2.7V to 5.5V  
• 300mA output current  
• Output voltage down to 0.8V  
• Thermal shutdown protection  
• Current limit protection  
Applications  
• Cellular phones  
• PDAs  
• USB peripherals  
___________________________________________________________________________________________________________  
Typical Application  
1.8V Efficiency @ 25°C  
100  
2.7V  
IN  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
5.5V  
IN  
3.6V  
IN  
0
0.1 0.2 0.3 0.4 0.5 0.6  
LOAD CURRENT (A)  
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  
M9999-022008-D  
February 2008  
Micrel, Inc.  
MIC2225  
Ordering Information  
Part Number  
Marking  
Voltage*  
Temperature Range  
Package  
Lead Finish  
Code  
MIC2225-4KYMT  
MIC2225-4MYMT  
MIC2225-4OYMT  
MIC2225-4SYMT  
MIC2225-G4YMT  
MIC2225-GFYMT  
MIC2225-GJYMT  
MIC2225-GMYMT  
Note:  
4TK  
1.2V/2.6V  
1.2V/2.8V  
1.2V/2.9V  
1.2V/3.3V  
1.8V/1.2V  
1.8V/1.5V  
1.8V/2.5V  
1.8V/2.8V  
–40° to +125°C  
–40° to +125°C  
–40° to +125°C  
–40° to +125°C  
–40° to +125°C  
–40° to +125°C  
–40° to +125°C  
–40° to +125°C  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
10-Pin 2x2 Thin MLF®  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
Pb-Free  
4TM  
4TO  
4TS  
GT4  
GTF  
GTJ  
GTM  
MLF® is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.  
Other voltage options available. Please contact Micrel for details.  
* Refers to nominal output voltage of DC/DC and LDO respectively.  
Pin Configuration  
AGND  
LDO  
BIAS  
AVIN  
FB  
1
2
3
4
5
10 PGND  
9
8
7
6
SW  
VIN  
ENLDO  
EN  
10-Pin 2mm x 2mm Thin MLF® (MT)  
M9999-022008-D  
February 2008  
2
Micrel, Inc.  
MIC2225  
Pin Description  
Pin Number  
Pin Name  
AGND  
LDO  
Pin Function  
1
2
3
Analog (signal) Ground.  
LDO Output (Output): Connect to a 2.2µF output capacitor.  
BIAS  
Internal circuit bias supply. Must be de-coupled to signal ground with a 0.1µF  
capacitor and should not be loaded.  
4
5
AVIN  
FB  
Analog Supply Voltage (Input): Supply voltage for the analog control circuitry  
and LDO input power. Requires bypass capacitor to GND. It must be tied to  
VIN.  
Feedback. Input to the error amplifier. For the Adjustable option, connect to the  
external resistor divider network to set the output voltage. For fixed output  
voltage options, connect to VOUT and an internal resistor network sets the output  
voltage.  
6
7
EN  
Enable (Input). Logic low will shut down the switching regulator reducing the  
quiescent current to less than 5µA.  
ENLDO  
Enable LDO (Input): Logic low will shut down the LDO, reducing the quiescent  
current to less than 5µA.  
8
9
VIN  
SW  
Supply Voltage (Input): Supply voltage for the internal switches and drivers.  
Switch (Output): Internal power MOSFET output switches.  
Power Ground.  
10  
PGND  
M9999-022008-D  
February 2008  
3
Micrel, Inc.  
MIC2225  
Absolute Maximum Ratings(1)  
Operating Ratings(2)  
Supply Voltage (VIN).......................................................+6V  
Output Switch Voltage (VSW)..........................................+6V  
Output Switch Current (ISW)..............................................1A  
Logic Input Voltage (VEN,VLOWQ)........................–0.3V to VIN  
Storage Temperature (Ts) .........................–60°C to +150°C  
ESD Rating(3)..................................................................2kV  
Supply Voltage (VIN)..................................... +2.7V to +5.5V  
Logic Input Voltage (VEN,VLOWQ)........................ –0.3V to VIN  
Junction Temperature (TJ) ........................–40°C to +125°C  
Junction Thermal Resistance  
Thin MLF-10L (θJA) ............................................90°C/W  
Electrical Characteristics DC/DC(4)  
VEN = VIN = 3.6V, L = 2.2µH; COUTDC/DC = 2.2µF, CLDO = 2.2µF; IOUTDC/DC = 100mA; CBIAS = 0.1µF  
ENLDO = 0V; TJ = 25°C, bold values indicate –40°C < TJ < +125°C; unless noted.  
V
Parameter  
Condition  
Min  
Typ  
2.55  
70  
Max  
2.65  
Units  
V
UVLO Threshold  
Rising input voltage during turn-on  
2.45  
UVLO Hysteresis  
mV  
µA  
Switcher Ground Pin Current  
ENLDO = 0V, VFB = GND ; IL=0mA  
EN = 0V  
850  
1100  
110  
5
LDO Ground Pin Current  
67  
µA  
µA  
Ground Pin Current in  
Shutdown  
EN +ENLDO = 0V  
0.2  
Over-temperature Shutdown  
160  
23  
°C  
°C  
Over-temperature Shutdown  
Hysteresis  
Enable Input Voltage  
Logic Low  
0.2  
V
V
Logic High  
1.0  
Enable Input Current  
VIL < 0.2V  
0.1  
0.1  
50  
1
1
µA  
µA  
µs  
VIH > 1.0V  
Turn-on Time  
ILOAD = 5mA  
Fixed Output Voltages  
Nominal VOUT tolerance Io=50mA  
–2  
–3  
+2  
+3  
%
%
Current Limit in PWM Mode  
VFB = 0.9*VNOM  
0.675  
0.95  
0.12  
A
Output Voltage Line Regulation  
VIN = 2.7V to 5.5V, ILOAD= 100mA  
1
%
%
Output Voltage Load Regulation 20mA < ILOAD < 300mA  
0.2  
1.5  
%
%
Maximum Duty Cycle  
100  
VFB ≤ 0.4V  
PWM Switch ON-Resistance  
I
I
SW = 150mA; VFB = 0.7VFB_NOM  
SW = -150mA; VFB = 1.1VFB_NOM  
0.4  
0.4  
Ω
Ω
Oscillator Frequency  
1.8  
2
2.2  
MHz  
M9999-022008-D  
February 2008  
4
Micrel, Inc.  
MIC2225  
Electrical Characteristics LDO(4)  
COUTLDO = 2.2µF, IOUTLDO = 100µA; TJ = 25°C, bold values indicate –40°C < TJ < +125°C; unless noted.  
Parameter  
Condition  
Min  
Typ  
Max  
Units  
Input Voltage  
Output Voltage Accuracy  
2.7  
–2.0  
–3.0  
5.5  
+2.0  
+3.0  
V
%
%
%
µs  
%
mV  
dB  
dB  
Variation from nominal VOUT  
Variation from nominal VOUT; –40°C to +125°C  
VIN = VOUT +1V to 5.5V; IOUT = 100µA  
ILOAD = 300mA  
Line Regulation  
Turn-on Time  
0.2  
30  
Load Regulation  
Dropout Voltage, Note 5  
Ripple Rejection  
IOUT = 100µA to 300mA @ VIN = VOUT + 1  
IOUT = 300mA @ VIN = 2.7V  
f = 1kHz; COUT = 2.2µF  
f = 20kHz; COUT = 2.2µF  
0.70  
210  
43  
17  
Current Limit  
VOUT = 0V  
400  
mA  
Output Voltage Noise  
COUT = 2.2µF, 10Hz to 100kHz  
470  
µVRMS  
Notes:  
1. Exceeding the absolute maximum rating may damage the device.  
2. The device is not guaranteed to function outside its operating rating.  
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.  
4. Specification for packaged product only.  
5. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value that is initially measured at  
a 1V differential. For outputs below 2.7V, the dropout voltage is the input-to-output voltage differential with a minimum input voltage of 2.7V.  
M9999-022008-D  
February 2008  
5
Micrel, Inc.  
MIC2225  
Typical Characteristics (DC-DC)  
1.2V Efficiency @ –40°C  
1.2V Efficiency @ 25°C  
1.2V Efficiency @ 70°C  
100  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
2.7V  
IN  
2.7VIN  
2.7V  
IN  
90  
3.6V  
3.6V  
IN  
IN  
3.6V  
IN  
80  
70  
60  
50  
40  
30  
20  
10  
0
5.5V  
IN  
5.5V  
5.5V  
IN  
IN  
0
0.1 0.2 0.3 0.4 0.5 0.6  
LOAD CURRENT (A)  
0
0.1 0.2 0.3 0.4 0.5 0.6  
LOAD CURRENT (A)  
0
0.1 0.2 0.3 0.4 0.5 0.6  
LOAD CURRENT (A)  
Quiescent Current  
vs. Input Voltage  
Quiescent Current  
vs. Load Current  
Enable Threshold  
vs. Input Voltage  
150  
125  
100  
75  
1200  
1000  
800  
600  
400  
200  
0
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
50  
V
= 1.2V  
OUT  
LOAD = 0  
ENLDO = 0V  
V
OUT  
= 1.2V  
25  
V
OUT  
= 1.19V  
EN = V  
IN  
ENLDO = 5V  
EN = V  
ENLDO = 0V  
IN  
0
2.5  
3
3.5  
4
4.5 5.5  
5
30 40 50 60  
2.5  
3
3.5  
4
4.5  
5
5.5  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
LOAD CURRENT (mA)  
Turn-On Time  
vs. Input Voltage  
Frequency  
vs. Input Voltage  
Peak Current Limit  
vs. Input Voltage  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
2.9  
2.7  
2.5  
2.3  
2.1  
1.9  
1.7  
1.5  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
V
= 1.19V  
V
= 1.2V  
OUT  
OUT  
V
= 1.2V  
VLDO = 2.8V  
ENLDO = 5V  
LOAD = 0  
ENLDO = V  
OUT  
EN = ENLDO = V  
IN  
IN  
2.5  
3
3.5  
4
4.5  
5
5.5  
2.5  
3
3.5  
4
4.5  
5
5.5  
2.5  
3
3.5  
4
4.5  
5
5.5  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
M9999-022008-D  
February 2008  
6
Micrel, Inc.  
MIC2225  
Typical Characteristics (LDO)  
PSRR  
Quiescent Current  
vs. Input Voltage  
Quiescent Current  
vs. Load Current  
70  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
80  
78  
76  
74  
72  
70  
68  
66  
64  
62  
60  
60  
100mA  
60mA  
50  
300mA  
40  
30  
20  
10  
0
100mA  
10mA  
0mA  
V
V
= 1.7V  
= 2.8V  
= 2.2µF  
IN  
V
IN  
= 3.6V  
OUT  
C
ENLDO = V  
ENLDO = V  
OUT  
IN  
IN  
0.025 0.075 0.125 0.175 0.2250.275  
LOAD CURRENT (A)  
100  
1K  
10K  
100K  
0
1
2
3
4
5
FREQUENCY (Hz)  
INPUT VOLTAGE (V)  
Quiescent Current  
vs. Temperature  
Output Voltage  
vs. Load Current  
Output Voltage  
vs. Temperature  
125  
100  
75  
50  
25  
0
3.00  
2.95  
2.90  
2.85  
2.80  
2.75  
2.70  
2.65  
2.60  
2.55  
2.50  
3.00  
2.95  
2.90  
2.85  
2.80  
2.75  
2.70  
2.65  
2.60  
2.55  
2.50  
50mA  
100mA  
1mA  
V
IN  
= 3.6V  
ENLDO = V  
Load = 1mA  
IN  
V
= 3.6V  
IN  
V
= 3.6V  
IN  
ENLDO = V  
IN  
ENLDO = V  
IN  
-40 -20  
0
20 40 60 80 100 120  
0.025 0.075 0.125 0.175 0.2250.275  
LOAD CURRENT (A)  
-40 -20  
0
20 40 60 80 100 120  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
Output Voltage  
vs. Temperature  
Dropout Voltage  
vs. Load Current  
Dropout Voltage  
vs. Temperature  
2.86  
0.20  
50  
40  
30  
20  
10  
0
ENLDO = V  
IN  
2.84  
2.82  
2.8  
0.18  
0.16  
0.14  
0.12  
0.10  
0.08  
0.06  
0.04  
0.02  
0
50mA  
2.78  
2.76  
2.74  
2.72  
2.70  
2.68  
2.66  
25mA  
10mA  
V
= 3.6V  
IN  
ENLDO = V  
Load = 10mA  
V
= 3.6V  
IN  
IN  
1mA  
ENLDO = V  
IN  
-40 -20  
0
20 40 60 80 100 120  
0
0.05 0.1 0.15 0.2 0.25 0.3  
LOAD CURRENT (A)  
-40 -20 0  
20 40 60 80 100 120  
TEMPERATURE (°C)  
TEMPERATURE (°C)  
Peak Current Limit  
vs. Input Voltage  
Turn-On Time  
vs. Input Voltage  
Enable Threshold  
vs. Input Voltage  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
EN = ENLDO = V  
ENLDO = V  
IN  
IN  
LDO = 2.8V  
4.5 5.5  
INPUT VOLTAGE (V)  
0
2.5  
3
3.5  
4
5
2.5  
3
3.5  
4
4.5  
5
5.5  
2.5  
3
3.5  
4
4.5  
5
5.5  
INPUT VOLTAGE (V)  
INPUT VOLTAGE (V)  
M9999-022008-D  
February 2008  
7
Micrel, Inc.  
MIC2225  
Typical Characteristics (LDO) continued  
Output Noise  
Spectral Density  
3.0  
V
V
= 3.6V  
= 3.3V  
IN  
OUT  
2.5  
2.0  
1.5  
1.0  
0.5  
0
C
C
= 2.2µF  
= 0.1µF  
OUT  
BYP  
Noise(10Hz–100kHz) = 169µV  
RMS  
10  
100  
1K  
10K 100K 1M  
FREQUENCY (Hz)  
M9999-022008-D  
February 2008  
8
Micrel, Inc.  
MIC2225  
Functional Characteristics  
M9999-022008-D  
February 2008  
9
Micrel, Inc.  
MIC2225  
Functional Diagram  
VIN  
AVIN  
P-Channel  
Current Limit  
6
BIAS  
HSD  
SW  
VOUT1  
PWM  
Control  
Anti-Shoot  
Through  
COUT1  
LSD  
N-Channel  
Current Limit  
FB  
EN  
Bias,  
UVLO,  
Enable and  
Soft  
Control Logic  
EA  
Thermal  
Shutdown  
Start  
ENLDO  
1.0V  
LDO  
LDO Block  
VOUT2  
LDO  
Current  
Limit  
EA  
COUT2  
1.0V  
SGND  
PGND  
MIC2225 Block Diagram  
M9999-022008-D  
February 2008  
10  
Micrel, Inc.  
MIC2225  
Functional Description  
VIN  
BIAS  
VIN provides power to the MOSFETs for the switch  
mode regulator section, along with the current limiting  
sensing. Due to the high switching speeds, it is  
recommended that an 1µF capacitor be placed close to  
VIN and the power ground (PGND) pin for bypassing.  
Please refer to layout recommendations.  
The BIAS pin supplies the power to the internal power to  
the control and reference circuitry. The bias is powered  
from AVIN through an internal 6Ω resistor. A small 0.1µF  
capacitor is recommended for bypassing.  
FB  
The feedback pin (FB) provides the control path to  
control the output. For fixed output, the controller  
output is directly connected to the feedback (FB) pin.  
AVIN  
Analog VIN (AVIN) provides power to the LDO section  
and the bias through an internal 6Ω resistor. AVIN and  
VIN must be tied together. Careful layout should be  
considered to ensure high frequency switching noise  
caused by VIN is reduced before reaching AVIN.  
SW  
The switch (SW) pin connects directly to the inductor  
and provides the switching current necessary to operate  
in PWM mode. Due to the high speed switching on this  
pin, the switch node should be routed away from  
sensitive nodes.  
LDO  
The LDO pin is the output of the linear regulator and  
needs to be connected to a 2.2µF output capacitor.  
PGND  
EN  
Power ground (PGND) is the ground path for the high  
current PWM mode. The current loop for the power  
ground should be as small as possible and separate  
from the Analog ground (AGND) loop. Refer to the layout  
considerations for more details.  
The enable pin provides a logic level control of the  
output. In the off state, the supply current of the device is  
greatly reduced (typically <1µA). Also, in the off state,  
the output drive is placed in a "tri-stated" condition,  
wherein both the high side P-channel MOSFET and the  
low-side N-channel are in an “off” or non-conducting  
state. Do not drive the enable pin above the supply  
voltage.  
SGND  
Signal ground (SGND) is the ground path for the biasing  
and control circuitry. The current loop for the signal  
ground should be separate from the Power ground  
(PGND) loop. Refer to the layout considerations for more  
details.  
ENLDO  
The enable pin provides a logic level control of the LDO  
output. In the off state, supply current of the device is  
greatly reduced (typically <1µA). Do not drive the enable  
pin above the supply voltage.  
M9999-022008-D  
February 2008  
11  
Micrel, Inc.  
MIC2225  
not recommended.  
Application Information  
In addition to a 2.2µF, a small 10nF is recommended  
close to the load for high frequency filtering. Smaller  
case size capacitors are recommended due to there  
lower ESR and ESL.  
The MIC2225 is a 600mA PWM and 300mA LDO dual  
power supply. Both PWM output and LDO outputs are  
independent and are controlled by EN and ENLDO pins  
respectively. These enable pins are logic level  
compatible.  
Inductor Selection  
The MIC2225 is designed for use with a 2.2µH inductor.  
Proper selection should ensure that the inductor can  
handle the maximum average and peak currents  
required by the load. Maximum current ratings for the  
inductor are generally given in two methods; permissible  
DC current and saturation current. Permissible DC  
current can be rated either for a 40°C temperature rise  
or a 10% to 20% loss in inductance. Ensure that the  
inductor selected can handle the maximum operating  
current. When saturation current is specified, make sure  
that there is enough margin so that the peak current will  
not saturate the inductor. Peak inductor current can be  
calculated as follows:  
Input Capacitor  
A minimum 1µF ceramic is recommended on the VIN pin  
for bypassing. X5R or X7R dielectrics are recommended  
for the input capacitor. Y5V dielectrics loose most of  
their capacitance over temperature and are therefore,  
not recommended.  
A minimum 1µF is recommended for placement close to  
the VIN and PGND pins for high frequency filtering.  
Smaller case size capacitors are recommended due to  
their lower ESR and ESL. Please refer to layout  
recommendations for proper layout of the input  
capacitor.  
⎛
⎞
⎟
⎟
⎠
Output Capacitor  
VOUT  
VIN  
⎜
VOUT 1−  
⎜
Even though the MIC2225 is optimized for a 2.2µF  
output capacitor, output capacitance can be varied from  
1µF to 10µF. The MIC2225 utilizes Type III internal  
compensation and utilizes an internal high frequency  
zero to compensate for the double pole roll off of the LC  
filter. For this reason, larger output capacitors can create  
instabilities. X5R or X7R dielectrics are recommended  
for the output capacitor. Y5V dielectrics lose most of  
their capacitance over temperature and are therefore,  
⎝
IPK = IOUT  
+
2 × f × L  
M9999-022008-D  
February 2008  
12  
Micrel, Inc.  
MIC2225  
PCB Layout Recommendations  
Top Layer  
Bottom Layer  
Note:  
The above figures demonstrate the recommended layout for the MIC2225 fixed output option.  
M9999-022008-D  
February 2008  
13  
Micrel, Inc.  
MIC2225  
L1  
MIC2225  
VIN  
0.47µH / 2.2µH  
J1  
VIN  
5.5V Max  
8
4
9
5
J3  
SW  
FB  
VO1  
C4  
C1  
2.2µF/  
6.3V  
R3  
0
R1  
10k  
AVIN  
2.2µF/  
6.3V  
JP1  
1X2  
J6  
EN  
6
EN  
J7  
ENLDO  
J4  
VO2  
7
3
2
LDO  
ENLDO  
BIAS  
C3  
2.2µF/  
6.3V  
R2  
10k  
C2  
0.1µF/  
6.3V  
PGND AGND  
10  
1
J5  
GND  
J2  
GND  
Schematic Diagram  
Bill of Materials  
Item  
C1  
C2  
C3  
C4  
R1  
R2  
R3  
L1  
Part Number  
C1608X5R0J225K  
Manufacturer  
TDK(1)  
Vishay Vitramon(2)  
TDK(1)  
Description  
Qty.  
1
2.2µF/6.3V, X5R  
0.1µF/6.3V, X7R  
VJ0402Y104KXQCW1BC  
C1608X5R0J225K  
1
2.2µF/6.3V, X5R  
1
C1608X5R0J225K  
TDK(1)  
2.2µF/6.3V, X5R  
1
CRCW06031002FKEYE3  
CRCW06031002FKEYE3  
CRCW08050000FKEYE3  
Vishay Dale(2)  
Vishay Dale(2)  
Vishay Dale(2)  
Sumida(3)  
10k, 0603, 1/16W, 1%  
10k, 0603, 1/16W, 1%  
0, 0805, 1/8W, 1%  
2.2µH, 1.1A (Isat)  
1
1
1
CDRH2D11/HPNP-2R2NC  
1
U1  
MIC2225-XYMT  
Micrel, Inc.(4)  
2Mhz PWM Synchronous Buck Regulator  
with 300mA LDO  
1
Notes:  
1. TDK: www.tdk.com  
2. Vishay: www.vishay.com  
3. Sumida: www.sumida.com  
4. Micrel, Inc.: www.micrel.com  
M9999-022008-D  
February 2008  
14  
Micrel, Inc.  
MIC2225  
Package Information  
10-Pin 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  
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its  
use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.  
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.  
© 2007 Micrel, Incorporated.  
M9999-022008-D  
February 2008  
15  

相关型号：

MIC2225-4OYMTTR

 暂无描述
MICREL

MIC2225-4OYMTTR

 1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
MICROCHIP

MIC2225-4SYMT

 2MHz 600mA Synchronous Buck Regulator with 300mA LDO
MICREL

MIC2225-4SYMT

 1 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
ROCHESTER

MIC2225-4SYMT-TR

 1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10
MICROCHIP

MIC2225-4SYMTTR

 1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
MICROCHIP

MIC2225-G4YMT

 2MHz 600mA Synchronous Buck Regulator with 300mA LDO
MICREL

MIC2225-G4YMT

 1 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
ROCHESTER

MIC2225-G4YMT

 Switching Regulator, 1A, 2200kHz Switching Freq-Max, PDSO10
MICROCHIP

MIC2225-G4YMT-TR

 1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10
MICROCHIP

MIC2225-G4YMTTR

 1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
MICREL

MIC2225-G4YMTTR

 1A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, 2 X 2 MM, GREEN, MLF-10
MICROCHIP
©2020 ICPDF网 联系我们和版权申明