June 2000

MIC4680

Micrel

MIC4680

1A 200kHz SuperSwitcherTM Buck Regulator

Final Information

General Description

The MIC4680 SuperSwitcherTM is an easy-to-use fixed or
adjustable output voltage step-down (buck) switch-mode
voltage regulator. The 200kHz MIC4680 achieves up to 1.3A
of continuous output current over a wide input range in a
8-lead SOP (small outline package).

The MIC4680 is available in 3.3V and 5V fixed output ver-
sions or adjustable output down to 1.25V.

The MIC4680 has an input voltage range of 4V to 34V, with
excellent line, load, and transient response. The regulator
performs cycle-by-cycle current limiting and thermal shut-
down for protection under fault conditions. In shutdown
mode, the regulator draws less than 2

A of standby current.

The MIC4680 SuperSwitcherTM regulator requires a mini-
mum number of external components and can operate using
a standard series of inductors and capacitors. Frequency
compensation is provided internally for fast transient re-
sponse and ease of use.

The MIC4680 is available in the 8-lead SOP with a
40

C to +125

C junction temperature range.

Typical Applications

GND

SHDN

C2
220

16V

D1
B260A or
SS26

3.3V/1A

MIC4680-3.3BM

35V

+6V to +34V

SHUTDOWN

ENABLE

Power
SOP-8

Fixed Regulator Circuit

GND

SHDN

C2
220

16V

R1
3.01k

R2
2.94k

2.5V/1A

MIC4680BM

35V

+5V to +34V

SHUTDOWN

ENABLE

Power
SOP-8

D1
B260A or
SS26

Adjustable Regulator Circuit

Features

· SO-8 package with up to 1.3A output current
· All surface mount solution
· Only 4 external components required
· Fixed 200kHz operation
· 3.3V, 5V, and adjustable output versions
· Internally compensated with fast transient response
· Wide 4V to 34V operating input voltage range
· Less than 2

A typical shutdown-mode current

· Up to 90% efficiency
· Thermal shutdown
· Overcurrent protection

Applications

· Simple 1A high-efficiency step-down (buck) regulator
· Replacement of TO-220 and TO-263 designs
· Efficient preregulator (5V to 2.5V, 12V to 3.3V, etc.)
· On-card switching regulators
· Positive-to-negative converter (inverting buck-boost)
· Simple battery charger
· Negative boost converter
· Higher output current regulator using external FET

Micrel, Inc. · 1849 Fortune Drive · San Jose, CA 95131 · USA · tel + 1 (408) 944-0800 · fax + 1 (408) 944-0970 · http://www.micrel.com

SuperSwitcher is a trademark of Micrel, Inc.

MIC4680

Micrel

MIC4680

June 2000

Ordering Information

Part Number

Voltage

Junction Temp. Range

Package

MIC4680BM

Adjustable

C to +125

8-lead SOP

MIC4680-3.3BM

3.3V

C to +125

8-lead SOP

MIC4680-5.0BM

5.0V

C to +125

8-lead SOP

Pin Configuration

SHDN

GND

SOP-8 (M)

Pin Description

Pin Number

Pin Name

Pin Function

SHDN

Shutdown (Input): Logic low enables regulator. Logic high (>1.6V) shuts
down regulator.

VIN

Supply Voltage (Input): Unregulated +4V to +34V supply voltage.

Switch (Output): Emitter of NPN output switch. Connect to external storage
inductor and Shottky diode.

Feedback (Input): Connect to output on fixed output voltage versions, or to
1.23V-tap of voltage-divider network for adjustable version.

GND

Ground

June 2000

MIC4680

Micrel

Electrical Characteristics

= 12V; I

LOAD

= 500mA; T

= 25

C, bold values indicate 40

+125

C, Note 7; unless noted.

Parameter

Condition

Min

Typ

Max

Units

MIC4680 [Adjustable]

Feedback Voltage

(

1%)

1.217

1.230

1.243

(

2%)

1.205

1.255

34V, 0.1A

LOAD

1A, V

OUT

= 5V

1.193

1.230

1.267

1.180

1.280

Maximum Duty Cycle

= 1.0V

Output Leakage Current

= 34V, V

SHDN

= 5V, V

= 0V

500

= 34V, V

SHDN

= 5V, V

= 1V

Quiescent Current

= 1.5V

MIC4680-3.3

Output Voltage

(

1%)

3.266

3.3

3.333

(

3%)

3.201

3.399

34V, 0.1A

LOAD

3.168

3.3

3.432

3.135

3.465

Maximum Duty Cycle

= 2.5V

Output Leakage Current

= 34V, V

SHDN

= 5V, V

= 0V

500

= 34V, V

SHDN

= 5V, V

= 1V

Quiescent Current

= 4.0V

MIC4680-5.0

Output Voltage

(

1%)

4.950

5.0

5.05

(

3%)

4.85

5.15

34V, 0.1A

LOAD

4.800

5.0

5.200

4.750

5.250

Maximum Duty Cycle

= 4.0V

Output Leakage Current

= 34V, V

SHDN

= 5V, V

= 0V

500

= 34V, V

SHDN

= 5V, V

= 1V

Quiescent Current

= 6.0V

Absolute Maximum Ratings

(Note 1)

Supply Voltage (V

), Note 3 ...................................... +38V

Shutdown Voltage (V

SHDN

) .......................... 0.3V to +38V

Steady-State Output Switch Voltage (V

) .................. 1V

Feedback Voltage [Adjustable] (V

) .......................... +12V

Storage Temperature (T

) ....................... 65

C to +150

ESD, Note 5

Operating Ratings

(Note 2)

Supply Voltage (V

), Note 4 .......................... +4V to +34V

Junction Temperature (T

) ...................................... +125

Package Thermal Resistance (

), Note 6 ............ 63

C/W

MIC4680

Micrel

MIC4680

June 2000

Parameter

Condition

Min

Typ

Max

Units

MIC4680/-3.3/-5.0

Frequency Fold Back

100

kHz

Oscillator Frequency

180

200

220

kHz

Saturation Voltage

OUT

= 1A

1.4

1.8

V
V

Short Circuit Current Limit

= 0V, see Test Circuit

1.3

1.8

2.5

Standby Quiescent Current

SHDN

= V

1.5

SHDN

= 5V (regulator off)

100

Shutdown Input Logic Level

regulator off

1.6

regulator on

1.0

0.8

Shutdown Input Current

SHDN

= 5V (regulator off)

0.5

SHDN

= 0V (regulator on)

1.5

Thermal Shutdown

160

Note 1.

Exceeding the absolute maximum rating may damage the device.

Note 2.

The device is not guaranteed to function outside its operating rating.

Note 3.

Absolute maximum rating is intended for voltage transients only, prolonged dc operation is not recommended.

Note 4.

IN(min)

= V

OUT

+ 2.5V or 4V whichever is greater.

Note 5.

Devices are ESD sensitive. Handling precautions recommended.

Note 6.

Measured on 1" square of 1 oz. copper FR4 printed circuit board connected to the device ground leads.

Note 7.

Test at T

= +85

C, guaranteed by design, and characterized to T

= +125

Test Circuit

GND

SHDN

Device Under Test

+12V

SHUTDOWN

ENABLE

SOP-8

Current Limit Test Circuit

Shutdown Input Behavior

OFF

GUARANTEED

OFF

TYPICAL

OFF

GUARANTEED

TYPICAL

0.8V

1.6V

IN(max)

Shutodwn Hysteresis

June 2000

MIC4680

Micrel

4.96

4.98

5.00

5.02

5.04

0.2 0.4 0.6 0.8 1.0 1.2 1.4

OUTPUT VOLTAGE (V)

OUTPUT CURRENT (A)

Load Regulation

= 12V

OUT

= 5V

Typical Characteristics

4.96

4.97

4.98

4.99

5.00

5.01

5.02

5.03

5.04

5.05

5.06

OUTPUT VOLTAGE (V)

INPUT VOLTAGE (V)

Line Regulation

OUT

= 1.0A

100

CURRENT (

INPUT VOLTAGE (V)

Shutdown Current

vs. Input Voltage

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

-50 -25

75 100 125

CURRENT (

TEMPERATURE (

Shutdown Current

vs. Temperature

= 12V

SHDN

= V

0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

OUTPUT VOLTAGE (V)

OUTPUT CURRENT (A)

Current Limit

Characteristic

= 12V

196

197

198

199

200

201

202

FREQUENCY (kHz)

SUPPLY VOLTAGE (V)

Frequency vs.

Supply Voltage

180

190

200

210

220

-50 -25

75 100 125

FREQUENCY (kHz)

TEMPERATURE (

Frequency vs.

Temperature

1.228

1.230

1.232

1.234

1.236

1.238

1.240

1.242

-50 -25 0

25 50 75 100 125 150

FEEDBACK VOLTAGE (V)

TEMPERATURE (

Feedback Voltage

vs. Temperature

= 12V

OUT

= 5V

OUT

= 1A

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

-50 -25

75 100 125

SATURATION VOLTAGE (V)

TEMPERATURE (

Saturation Voltage

vs. Temperature

= 12V

OUT

= 5V

LOAD

= 1A

0.2 0.4 0.6 0.8 1.0 1.2 1.4

EFFICIENCY (%)

OUTPUT CURRENT (A)

3.3V Output

Efficiency

12V

24V

0.2 0.4 0.6 0.8 1.0 1.2 1.4

EFFICIENCY (%)

OUTPUT CURRENT (A)

5V Output
Efficiency

12V

24V

100

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4

EFFICIENCY (%)

OUTPUT CURRENT (A)

12V Output

Efficiency

15V

24V

MIC4680

Micrel

MIC4680

June 2000

Switching Frequency Foldback

TIME

Normal
Operation

Short
Circuit
Operation

(SHOR

TED)

12V IN, 0V OUT

(NORMAL)

12V IN, 5V/1A OUT

200kHz

60kHz

Load Transient

= 12V

OUT

= 5V

OUT

= 1.0A to 0.1A

TIME (100ms/div.)

OUT

(500mA/div

.
)

OUT

(100mV/div

.
)

5.1V

Functional Characteristics

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

OUTPUT CURRENT (A)

INPUT VOLTAGE (V)

Safe

Operating Area

OUT

= 5V

= 60

Demonstration
board layout

Minimum

Current Limit

Note

Frequency Foldback

The MIC4680 folds the switching frequency back during a hard
short-circuit condition to reduce the energy per cycle and
protect the device.

Note. For increased output current, see "Applications Information:

Increasing the Maximum Output Current" and Figure 3.

June 2000

MIC4680

Micrel

No-Load Stability

Phase Margin = 125

TIME (100ms/div.)

= 34V

OUT

= 5.0V

OUT

= 1.0A

L = 68

OUT

= 220

Full-Load Stability

Phase Margin = 71

TIME (100ms/div.)

= 34V

OUT

= 5.0V

OUT

= 1.0A

L = 68

OUT

= 220

No-Load Stability

Phase Margin = 106

TIME (100ms/div.)

= 7V

OUT

= 5.0V

OUT

= 0.0A

L = 68

OUT

= 220

Full-Load Stability

Phase Margin = 114

TIME (100ms/div.)

= 7V

OUT

= 5.0V

OUT

= 1.0A

L = 68

OUT

= 220

No-Load Stability

Phase Margin = 117

TIME (100ms/div.)

= 12V

OUT

= 5.0V

OUT

= 0.0A

L = 68

OUT

= 220

Full-Load Stability

Phase Margin = 69

TIME (100ms/div.)

= 12V

OUT

= 5.0V

OUT

= 1.0A

L = 68

OUT

= 220

Bode Plots

The following bode plots show that the MIC4680 is stable over all conditions using a 68

F inductor (L) and a 220

F output

capacitor (C

OUT

). To assure stability, it is a good practice to maintain a phase margin of greater than 35

June 2000

MIC4680

Micrel

Functional Description

The MIC4680 is a variable duty cycle switch-mode regulator
with an internal power switch. Refer to the block diagrams.

Supply Voltage

The MIC4680 operates from a +4V to +34V unregulated
input. Highest efficiency operation is from a supply voltage
around +15V. See the efficiency curves.

Enable/Shutdown

The shutdown (

SHDN

) input is TTL compatible. Ground the

input if unused. A logic-low enables the regulator. A logic-
high shuts down the internal regulator which reduces the
current to typically 1.5

A when V

SHDN

= V

= 12V and 30

when V

SHDN

= 5V. See "Shutdown Input Behavior: Shutdown

Hysteresis."

Feedback

Fixed-voltage versions of the regulator have an internal
resistive divider from the feedback (

) pin. Connect

directly to the output voltage.

Adjustable versions require an external resistive voltage
divider from the output voltage to ground, center tapped to the

pin. See Figure 6b for recommended resistor values.

Duty Cycle Control

A fixed-gain error amplifier compares the feedback signal
with a 1.23V bandgap voltage reference. The resulting error
amplifier output voltage is compared to a 200kHz sawtooth
waveform to produce a voltage controlled variable duty cycle
output.

A higher feedback voltage increases the error amplifier
output voltage. A higher error amplifier voltage (comparator
inverting input) causes the comparator to detect only the
peaks of the sawtooth, reducing the duty cycle of the com-
parator output. A lower feedback voltage increases the duty
cycle. The MIC4680 uses a voltage-mode control architec-
ture.

Output Switching

When the internal switch is on, an increasing current flows
from the supply V

IN,

through external storage inductor L1, to

output capacitor C

OUT

and the load. Energy is stored in the

inductor as the current increases with time.

When the internal switch is turned off, the collapse of the
magnetic field in L1 forces current to flow through fast
recovery diode D1, charging C

OUT

Output Capacitor

External output capacitor C

OUT

provides stabilization and

reduces ripple. See "Bode Plots" for additional information.

Return Paths

During the on portion of the cycle, the output capacitor and
load currents return to the supply ground. During the off
portion of the cycle, current is being supplied to the output
capacitor and load by storage inductor L1, which means that
D1 is part of the high-current return path.

MIC4680

Micrel

MIC4680

June 2000

Applications Information

Adjustable Regulators

Adjustable regulators require a 1.23V feedback signal. Rec-
ommended voltage-divider resistor values for common out-
put voltages are included in Figure 1b.

For other voltages, the resistor values can be determined
using the following formulas:

R1 R2

1.23V

OUT

REF

OUT

REF

GND

SHDN

OUT

MIC4680BM

SHUTDOWN

ENABLE

Figure 1a. Adjustable Regulator Circuit

)

(

Figure 1b. Recommended Components for Common Ouput Voltages

June 2000

MIC4680

Micrel

Minimum Copper/Maximum Current Method

Using Figure 3, for a given input voltage range, determine the
minimum ground-plane heat-sink area required for the
application's maximum output current. Figure 3 assumes a
constant die temperature of 75

C above ambient.

0.5

1.0

1.5

OUTPUT CURRENT (I)

AREA (cm

)

12V

34V

24V

= 50

Minimum Current Limit = 1.3A

Figure 3. Output Current vs. Ground Plane Area

When designing with the MIC4680, it is a good practice to
connect pins 5 through 8 to the largest ground plane that is
practical for the specific design.

Checking the Maximum Junction Temperature:

For this example, with an output power (P

OUT

) of 5W, (5V

output at 1A maximum with V

= 12V) and 65

C maximum

ambient temperature, what is the maximum junction tem-
perature?

Referring to the "Typical Characteristics: 5V Output Effi-
ciency" graph, read the efficiency (

) for 1A output current at

= 12V or perform you own measurement.

= 79%

The efficiency is used to determine how much of the output
power (P

OUT

) is dissipated in the regulator circuit (P

P =

OUT

P =

0.79

= 1.33W

A worst-case rule of thumb is to assume that 80% of the total
output power dissipation is in the MIC4680 (P

D(IC)

) and 20%

is in the diode-inductor-capacitor circuit.

D(IC)

= 0.8 P

D(IC)

= 0.8

1.33W

D(IC)

= 1.064W

Calculate the worst-case junction temperature:

= P

D(IC)

+ (T

) + T

A(max)

where:

= MIC4680 junction temperature

D(IC)

= MIC4680 power dissipation

= junction-to-case thermal resistance.

The

for the MIC4680's power-SOP-8 is

approximately 20

C/W. (Also see Figure 1.)

= "pin" temperature measurement taken at the

entry point of pins 6 or 7 into the plastic package

BIENT

printed circuit board

ground plane

heat sink area

SOP-8

Figure 2. Power SOP-8 Cross Section

Thermal Considerations

The MIC4680 SuperSwitcher features the power-SOP-8.
This package has a standard 8-lead small-outline package
profile but with much higher power dissipation than a stan-
dard SOP-8. The MIC4680 SuperSwitcher is the first dc-to-dc
converter to take full advantage of this package.

The reason that the power SOP-8 has higher power dissipa-
tion (lower thermal resistance) is that pins 5 though 8 and the
die-attach paddle are a single piece of metal. The die is
attached to the paddle with thermally conductive adhesive.
This provides a low thermal resistance path from the junction
of the die to the ground pins. This design significantly im-
proves package power dissipation by allowing excellent heat
transfer through the ground leads to the printed circuit board.

One of the limitation of the maximum output current on any
MIC4680 design is the junction-to-ambient thermal resis-
tance (

) of the design (package and ground plane).

Examining

in more detail:

= (

)

where:

= junction-to-case thermal resistance

= case-to-ambient thermal resistance

is a relatively constant 20

C/W for a power SOP-8.

is dependent on layout and is primarily governed by the

connection of pins 5 though 8 to the ground plane. The
purpose of the ground plane is to function as a heat sink.

is ideally 63

C/W but will vary depending on the size of the

ground plane to which the power SOP-8 is attached.

Determining Ground-Plane Heat-Sink Area

There are two methods of determining the minimum ground
plane area required by the MIC4680.

Quick Method

Make sure that MIC4680 pins 5 though 8 are connected to a
ground plane with a minimum area of 6cm

. This ground

plane should be as close to the MIC4680 as possible. The
area maybe disributed in any shape around the package or
on any pcb layer

as long as there is good thermal contact to

pins 5 though 8. This ground plane area is more than
sufficient for most designs.

MIC4680

Micrel

MIC4680

June 2000

at the ambient temperature (T

) at which T

measured.

= ambient temperature at which T

is measured.

A(max)

= maximum ambient operating temperature

for the specific design.

Calculating the maximum junction temperature given a

maximum ambient temperature of 65

= 1.064

C/W + (45

C 25

C) + 65

= 106.3

This value is less than the allowable maximum operating
junction temperature of 125

C as listed in "Operating Rat-

ings." Typical thermal shutdown is 160

C and is listed in

"Electrical Characteristics."

Increasing the Maximum Output Current

The maximum output current at high input voltages can be
increased for a given board layout. The additional three

components shown in Figure 4 will reduce the overall loss in
the MIC4680 by about 20% at high V

and high I

OUT

Even higher output current can be achieved by using the
MIC4680 to switch an external FET. See Figure 9 for a 5A
supply with current limiting.

Layout Considerations

Layout is very important when designing any switching regu-
lator. Rapidly changing switching currents through the printed
circuit board traces and stray inductance can generate volt-
age transients which can cause problems.

To minimize stray inductance and ground loops, keep trace
lengths, indicated by the heavy lines in Figure 5, as short as
possible. For example, keep D1 close to pin 3 and pins 5
through 8, keep L1 away from sensitive node FB, and keep
C

close to pin 2 and pins 5 though 8. See "Applications

Information: Thermal Considerations" for ground plane lay-
out.

The feedback pin should be kept as far way from the switching
elements (usually L1 and D1) as possible.

A circuit with sample layouts are provided. See Figure 6a
though 6e.

GND

SHDN

1N4148

2.2nF

MIC4680BM

Figure 4. Increasing Maximum Output Current at High Input Voltages

Load

GND

SHDN

OUT

MIC4680BM

GND

+4V to +34V

Power
SOP-8

Figure 5. Critical Traces for Layout

GND

SHDN

D1
B260A
or
SS26

OUT

GND

U1 MIC4680BM

0.1

50V

35V

4V to +34V

GND

SOP-8

S1
NKK G12AP

OFF

C4
220

10V

C3*
optional

C5
0.1

50V

R1
3.01k

R2
6.49k

JP1a
1.8V

R6
optional

R3
2.94k

R4
1.78k

R5
976

JP1b
2.5V

JP1c
3.3V

JP1d
5.0V

* C3 can be used to provide additional stability

and improved transient response.

Figure 6a. Evaluation Board Schematic Diagram

June 2000

MIC4680

Micrel

Printed Circuit Board Layouts

Figure 6b. Top-Side Silk Screen

Figure 6c. Top-Side Copper

Figure 6d. Bottom-Side Silk Screen

Figure 6e. Bottom-Side Copper

Abbreviated Bill of Material (Critical Components)

Reference

Part Number

Manufacturer

Description

Qty

TPSD156M035R0300

AVX

F 35V

ECE-A1HFS470

Panasonic

F 50V, 8mm

11.5mm

TPSD227M010R0150

AVX

220

F 10V

B260A

Vishay-Diodes, Inc.

Schottky

SS26

General Semiconductor

UP2B-680

Coiltronics

H, 1.5A, nonshielded

CDH115-680MC

Sumida

H, 1.5A, nonshielded

CDRH124-680MC

Sumida

H, 1.5A, shielded

MIC4680BM

Micrel Semiconductor

1A 200kHz power-SO-8 buck regulator

AVX:

http://www.avxcorp.com

Panasonic:

http://www.maco.panasonic.co.jp/eccd/index.html

Vishay-Diodes, Inc., tel: (805) 446-4800,

http://www.diodes.com

Coiltronics, tel: (561) 241-7876,

http://www.coiltronics.com

Sumida, tel: (408) 982-9960,

http://www.sumida.com

Micrel, tel: (408) 944-0800,

http://www.micrel.com

MIC4680

Micrel

MIC4680

June 2000

Applications Circuits*

For continuously updated circuits using the MIC4680, see

Application Hint 37 at www.micrel.com.

100

GND

SHDN

C3
220

10V

R2
3.01k

R3
976

1N4148

R4
16.2k

R5
221k

10k

0.100

10nF

D1
MMBR140LT3

1N4148

C5
220nF

800mA

GND

MIC4680BM

100nF

35V

+34V max.

GND

SOP-8

S1
NKK G12AP

OFF

LM4041DIM3-1.2

U3
MIC6211BM5

R7
4.99k

Cellular

lephone

Figure 7. Constant Current and Constant Voltage Battery Charger

GND

SHDN

C1
68

20V

D1
ES1B
1A 100V

GND

U1 MIC4680BM

12V/150mA

C2
0.1

C4
68

20V

C5
33

35V

+12V

GND

SOP-8

R1
8.87k

R2
1k

C3
0.022

50V

Figure 8. +12V to 12V/150mA Buck-Boost Converter

L1*

GND

SHDN

220

16V

C3
220

16V

3.01k

C5
0.1

1N4148

R5
16k
1%

16k 1%

C4
1000pF

20m

R3
1k
1%

R4
1k
1%

1.78k

R1
1k

3.3V/5A

GND

U1 MIC4680BM

MIC4417BM4

Si4425DY

330

25V

+4.5V to +17V

SHUTDOWN

ENABLE

SOP-8

* I

SAT

= 8A

U3
MIC6211BM5

Figure 9. 5V to 3.3V/5A Power Supply

* See Application Hint 37 for bills of material.

MIC4680

Micrel

MIC4680

June 2000

Package Information

0.244 (6.20)
0.228 (5.79)

0.197 (5.0)
0.189 (4.8)

SEATING

PLANE

0.026 (0.65)

MAX

)

0.010 (0.25)
0.007 (0.18)

0.064 (1.63)
0.045 (1.14)

0.0098 (0.249)
0.0040 (0.102)

0.020 (0.51)
0.013 (0.33)

0.157 (3.99)
0.150 (3.81)

0.050 (1.27)

TYP

PIN 1

DIMENSIONS:

INCHES (MM)

0.050 (1.27)
0.016 (0.40)

8-Lead SOP (M)

MICREL INC.

1849 FORTUNE DRIVE

SAN JOSE, CA 95131

USA

TEL

+ 1 (408) 944-0800

FAX

+ 1 (408) 944-0970

WEB

http://www.micrel.com

This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or

other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MIC4680

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: MIC4680