MICROCHIP TC1240ECHTR

M
TC1240/TC1240A
Positive Doubling Charge Pumps with Shutdown
in a SOT-23 Package
Features
General Description
•
•
•
•
The TC1240/TC1240A is a doubling CMOS charge
pump voltage converter in a small 6-Pin SOT-23A
package. The TC1240 doubles an input voltage that
can range from +2.5V to +4.0V, while the TC1240A
doubles an input voltage that can range from +2.5V to
+5.5V. Conversion efficiency is typically >99%. Internal
oscillator frequency is 160 kHz for both devices. The
TC1240 and TC1240A have an active-high shutdown
that limits the current consumption of the devices to
less than 1 µA.
•
•
•
•
•
Charge Pumps in 6-Pin SOT-23A Package
>99% Typical Voltage Conversion Efficiency
Voltage Doubling
Input Voltage Range, TC1240: +2.5V to +4.0V,
TC1240A: +2.5V to +5.5V
Low Output Resistance, TC1240: 17Ω (Typical)
TC1240A: 12Ω (Typical)
Only Two External Capacitors Required
Low Supply Current, TC1240: 180 µA (Typical)
TC1240A: 550 µA (Typical)
Power-Saving Shutdown Mode (1 µA Maximum)
Shutdown Input Fully Compatible with 1.8V Logic
Systems
Applications
•
•
•
•
•
Cellular Phones
Pagers
PDAs, Portable Data Loggers
Battery Powered Devices
Handheld Instruments
External component requirement is only two capacitors
for standard voltage doubler applications. All other
circuitry (including control, oscillator and power
MOSFETs) are integrated on-chip. Typical supply current is 180 µA for the TC1240 and 550 µA for the
TC1240A. Both devices are available in a 6-Pin SOT23A surface mount package.
Typical Application Circuit
Positive Voltage Doubler
+
Package Type
C+
C1
6-Pin SOT-23A
C+
6
C-
VIN
INPUT
TC1240
TC1240A
OFF
SHDN
ON
VOUT SHDN
5
4
VOUT
GND
TC1240ECH
TC1240AECH
1
2
3
VIN
GND
C-
+
2 x INPUT
C2
NOTE: 6-Pin SOT-23A is equivalent to the
EIAJ (SC-74A)
 2003 Microchip Technology Inc.
DS21516C-page 1
TC1240/TC1240A
1.0
ELECTRICAL
CHARACTERISTICS
† Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
Absolute Maximum Ratings †
Input Voltage (VIN to GND)
TC1240 ............................................. +4.5V, -0.3V
TC1240A ........................................... +5.8V, -0.3V
Output Voltage (VOUT to GND)
TC1240 ....................................... +9.0V, VIN -0.3V
TC1240A ................................... +11.6V, VIN -0.3V
Current at VOUT Pin............................................50 mA
Short-Circuit Duration: VOUT to GND .............Indefinite
Thermal Resistance .......................................210°C/W
Power Dissipation (TA = +25°C)........................600 mW
Operating Temperature Range............. -40°C to +85°C
Storage Temperature (Unbiased) ....... -65°C to +150°C
TC1240 ELECTRICAL SPECIFICATIONS
Electrical Specifications: Unless otherwise noted, typical values apply at TA = +25°C. Minimum and maximum values apply for TA = -40° to +85°C, and VIN = +2.8V, C1 = C2 = 3.3 µF, SHDN = GND.
Parameters
Supply Current
Sym
Min
Typ
Max
Units
Conditions
IDD
—
180
300
µA
RLOAD = ∞
SHDN = VIN
Shutdown Supply Current
ISHDN
—
0.1
1.0
µA
Minimum Supply Voltage
VMIN
2.5
—
—
V
RLOAD = 1.0 kΩ
Maximum Supply Voltage
VMAX
—
—
4.0
V
RLOAD = 1.0 kΩ
Oscillator Frequency
FOSC
—
160
—
kHz
TA = -40°C to +85°C
Switching Frequency (Note 1)
FSW
40
80
125
kHz
TA = -40°C to +85°C
Shutdown Input Logic High
VIH
1.4
—
—
V
VIN = VMIN to VMAX
Shutdown Input Logic Low
VIL
—
—
0.4
V
VIN = VMIN to VMAX
Power Efficiency
PEFF
86
93
—
%
RLOAD = 1.0 kΩ
Voltage Conversion Efficiency
VEFF
97.5
99.96
—
%
RLOAD = ∞
Output Resistance (Note 2)
ROUT
—
—
17
—
—
30
Ω
RLOAD = 1.0 kΩ
TA = -40°C to +85°C
Note 1:
2:
Switching frequency is one-half internal oscillator frequency.
Capacitor contribution is approximately 26% of the output impedance [ESR = 1 / switching frequency x
capacitance].
DS21516C-page 2
 2003 Microchip Technology Inc.
TC1240/TC1240A
TC1240A ELECTRICAL SPECIFICATIONS
Electrical Specifications: Unless otherwise noted, typical values apply at TA = +25°C. Minimum and maximum
values apply for TA = -40° to +85°C, and VIN = +5.0V, C1 = C 2 = 3.3 µF, SHDN = GND.
Parameters
Supply Current
Sym
Min
Typ
Max
Units
IDD
—
550
900
µA
RLOAD = ∞
SHDN = VIN
Shutdown Supply Current
ISHDN
—
0.01
1.0
µA
Minimum Supply Voltage
VMIN
2.5
—
—
V
Conditions
Maximum Supply Voltage
VMAX
—
—
5.5
V
Output Current
ILOAD
20
—
—
mA
Sum of the R DS(ON) of the
internal MOSFET Switches
RSW
—
4
8
Ω
Oscillator Frequency
FOSC
—
160
—
kHz
TA = -40°C to +85°C
Switching Frequency (Note 1)
FSW
40
80
125
kHz
TA = -40°C to +85°C
Shutdown Input Logic High
VIH
1.4
—
—
V
VIN = VMIN to VMAX
Shutdown Input Logic Low
ILOAD = 20 mA
VIL
—
—
0.4
V
VIN = VMIN to VMAX
Power Efficiency
PEFF
86
94
—
%
ILOAD = 5 mA
Voltage Conversion Efficiency
VEFF
99
99.96
—
%
RLOAD = ∞
Output Resistance (Note 2)
ROUT
—
—
12
—
—
25
Ω
ILOAD = 20 µA
TA = -40°C to +85°C
Note 1:
2:
Switching frequency is one-half internal oscillator frequency.
Capacitor contribution is approximately 26% of the output impedance [ESR = 1 / switching frequency x
capacitance].
 2003 Microchip Technology Inc.
DS21516C-page 3
TC1240/TC1240A
2.0
TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: Unless otherwise indicated, typical values apply at TA = +25°C.
450
400
600
SUPPLY CURRENT (µA)
SUPPLY CURRENT (µA)
700
500
400
300
200
100
VIN = 4.0V
350
300
250
200
VIN = 2.8V
150
100
50
0
2.00
3.00
4.00
5.00
0
-50
6.00
-25
0
SUPPLY VOLTAGE (V)
20
15
10
5
0
2.00
3.00
4.00
5.00
6.00
20
VIN = 2.8V
15
VIN = 4.0V
10
5
0
-50
-25
0
100%
90%
POWER EFFICIENCY (%)
1
VOLT DROP (V)
0.7
0.6
VIN = 2.8V
0.5
VIN = 4.0V
0.4
0.3
0.2
0.1
0
25
50
75
TEMPERATURE (°C)
100
125
FIGURE 2-5:
Output Source Resistance
vs. Temperature (with RLOAD = 1 kΩ).
0.9
0.8
125
25
SUPPLY VOLTAGE (V)
FIGURE 2-2:
Output Source Resistance
vs. Supply Voltage (with RLOAD = 1 kΩ)
100
FIGURE 2-4:
Supply Current vs.
Temperature (No Load).
OUTPUT SOURCE RESISTANCE (Ω)
OUTPUT SOURCE RESISTANCE (Ω)
FIGURE 2-1:
Supply Current vs. Supply
Voltage (No Load).
25
50
75
TEMPERATURE (°C)
VIN = 2.5V
80%
VIN = 3.5V
70%
60%
VIN = 4.5V
50%
40%
30%
20%
10%
0%
0
5
10
FIGURE 2-3:
Load Current.
DS21516C-page 4
15 20 25 30 35
LOAD CURRENT (mA)
40
45
Output Voltage Drop vs.
50
0
5
FIGURE 2-6:
Current.
10
15 20 25 30 35
LOAD CURRENT (mA)
40
45
50
Power Efficiency vs. Load
 2003 Microchip Technology Inc.
TC1240/TC1240A
Note: Unless otherwise indicated, typical values apply at TA = +25°C.
SWITCHING FREQUENCY (kHz)
100
VIN = 4.0V
80
VIN = 2.8V
60
40
20
0
-50
-25
FIGURE 2-7:
Temperature.
0
25
50
75
TEMPERATURE (°C)
100
125
Switching Frequency vs.
 2003 Microchip Technology Inc.
DS21516C-page 5
TC1240/TC1240A
3.0
PIN DESCRIPTION
The description of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Pin No.
Symbol
1
VIN
2
GND
3
C-
4
SHDN
Shutdown input (active high)
5
VOUT
Doubled output voltage
6
C+
DS21516C-page 6
Description
Power supply input
Ground
Commutation capacitor negative terminal
Commutation capacitor positive terminal
 2003 Microchip Technology Inc.
TC1240/TC1240A
4.0
DETAILED DESCRIPTION
5.0
TYPICAL APPLICATIONS
The TC1240/TC1240A charge pump converter doubles the voltage applied to the VIN pin. Conversion consists of a two-phase operation (Figure 4-1). During the
first phase, switches S2 and S4 are open and S1 and S3
are closed. During this time, C 1 charges to the voltage
on V IN and load current is supplied from C2. During the
second phase, S2 and S 4 are closed, while S1 and S3
are open.
5.1
Output Voltage Considerations
During this second phase, C1 is level-shifted upward by
VIN volts. This connects C 1 to the reservoir capacitor
C2, allowing energy to be delivered to the output as
needed. The actual voltage is slightly lower than 2 x V IN
since the four switches (S 1-S4) have an on-resistance
and the load drains charge from reservoir capacitor C2.
VIN
S1
S2
TC1240/TC1240A
The TC1240/TC1240A performs voltage doubling but
does not provide regulation. The output voltage will
droop in a linear manner with respect to load current.
The value of this equivalent output resistance is approximately 12Ω nominal at +25°C and VIN = +5.0V for the
TC1240A and 17Ω nominal at +25°C and VIN = +2.8V
for the TC1240. VOUT is approximately +10.0V at light
loads for the TC1240A and +5.6V for the TC1240, and
droops according to the equation below:
EQUATION
V DROOP = I OUT × R OUT
V OUT = 2 × V IN – V DROOP
5.2
The overall power efficiency of the charge pump is
affected by four factors:
C1
VOUT = 2 x VIN
1.
C2
S3
Charge Pump Efficiency
S4
2.
VIN
OSC
3.
4.
FIGURE 4-1:
Ideal Switched Capacitor
Charge Pump Doubler.
Losses from power consumed by the internal
oscillator, switch drive, etc. (which vary with
input voltage, temperature and oscillator
frequency).
I2R losses due to the on-resistance of the
MOSFET switches on-board the charge pump.
Charge pump capacitor losses due to effective
series resistance (ESR).
Losses that occur during charge transfer (from
commutation capacitor to the output capacitor)
when a voltage difference between the two
capacitors exist.
Most of the conversion losses are due to factors (2) and
(3) above. These losses are given by Equation 5-1.
EQUATION 5-1:
2
a) P LOSS(2,3) = I OU T × R O UT
1
b) R O UT = ---------------------- + 8R SWITCH + 4ESR C1 + ESR C2
F SW ( C 1 )
 2003 Microchip Technology Inc.
DS21516C-page 7
TC1240/TC1240A
The switching frequency in Equation 5-1b is defined as
one-half the oscillator frequency (i.e., FSW = FOSC/2).
The 1/(FSW)(C1) term in Equation 5-1b is the effective
output resistance of an ideal switched capacitor circuit
(Figure 5-1 and Figure 5-2).
The output voltage ripple is given by Equation 5-2.
EQUATION 5-2:
I
OUT
V RIPPLE = -------------------------------- + 2 ( I OUT ) ( ESR C2 )
2 ( F SW ) ( C 2 )
f
V+
VOUT
C1
FIGURE 5-1:
Model.
C2
RL
Ideal Switched Capacitor
REQUIV
V+
VOUT
REQUIV = 1
FSW x C 1
C2
RL
5.3
Capacitor Selection
In order to maintain the lowest output resistance and
output ripple voltage, it is recommended that low ESR
capacitors be used. Additionally, larger values of C 1 will
lower the output resistance and larger values of C2 will
reduce output ripple (see Equation 5-1b).
Table 5-1 shows various values of C1 and the
corresponding output resistance values @ +25°C. It
assumes a 0.1Ω ESRC1 and 0.9Ω RSW. Table 5-2
shows the output voltage ripple for various values of
C 2. The VRIPPLE values assume 5mA output load
current and 0.1Ω ESRC2.
TABLE 5-1:
C1 (µF)
TC1240
R OUT(Ω)
TC1240A
ROUT(Ω)
0.47
47
35
20.5
1
28.5
2.2
19.5
14
3.3
17
12
4.7
15.5
10.5
10
13.6
9.3
47
12.5
8.3
100
12.2
8.1
TABLE 5-2:
FIGURE 5-2:
Resistance.
DS21516C-page 8
OUTPUT RESISTANCE
VS. C1 (ESR = 0.1Ω)
Equivalent Output
OUTPUT VOLTAGE RIPPLE
VS. C2 (ESR = 0.1Ω)
IOUT 5 mA
C1 (µF)
TC1240/TC1240A
VRIPPLE (mV)
0.47
142
1
67
2.2
30
3.3
20
4.7
14
10
6.7
47
2.5
100
1.6
 2003 Microchip Technology Inc.
TC1240/TC1240A
5.4
Input Supply Bypassing
5.6
The VIN input should be capacitively bypassed to
reduce AC impedance and minimize noise effects due
to the switching internal to the device. The
recommended capacitor should be a large value (at
least equal to C 1) connected from the input to GND.
5.5
Shutdown Input
Voltage Doubler
The most common application for charge pump
devices is the doubler (Figure 5-3). This application
uses two external capacitors – C1 and C 2 (plus a power
supply bypass capacitor, if necessary). The output is
equal to 2 x VIN minus any voltage drops due to
loading. Refer to Table 5-1 and Table 5-2 for capacitor
selection.
The TC1240 and TC1240A are disabled when SHDN is
high, and enabled when SHDN is low. This input cannot
be allowed to float.
C3
VIN
+
VOUT
5 OUT
C+ 6
TC1240
TC1240A
1 V
+
+
C1
C2
RL
IN
2
3 CGND
4 SHDN
Device
TC1240
TC1240A
FIGURE 5-3:
C1
C2
C3
3.3 µF
3.3 µF
3.3 µF
Test Circuit.
 2003 Microchip Technology Inc.
DS21516C-page 9
TC1240/TC1240A
5.7
Cascading Devices
5.8
Two or more TC1240/TC1240As can be cascaded to
increase output voltage (Figure 5-4). If the output is
lightly loaded, it will be close to ((n + 1) x VIN), but will
droop at least by ROUT of the first device multiplied by
the IQ of the second. It can be seen that the output
resistance rises rapidly for multiple cascaded devices.
For the case of the two-stage ‘tripler’, output resistance
can be approximated as ROUT = 2 x ROUT1 + ROUT2,
where ROUT1 is the output resistance of the first stage
and ROUT2 is the output resistance of the second stage.
Paralleling Devices
To reduce the value of ROUT, multiple TC1240/
TC1240As can be connected in parallel (Figure 5-5).
The output resistance will be reduced by a factor of N,
where N is the number of TC1240/TC1240As. Each
device will require its own pump capacitor (C1x), but all
devices may share one reservoir capacitor (C2).
However, to preserve ripple performance, the value of
C2 should be scaled according to the number of
paralled TC1240/TC1240As, respectively.
5.9
Layout Considerations
As with any switching power supply circuit good layout
practice is recommended. Mount components as close
together as possible to minimize stray inductance and
capacitance. Also use a large ground plane to minimize
noise leakage into other circuitry.
VIN
6 C+
C1A
VIN 1
+ C1B
TC1240
TC1240A
2 GND
+
VIN 1
6 C+
2
3
"1" OUT 5
C4 SHDN
+
TC1240
TC1240A
GND
5
3 C"n" OUT
4 SHDN
+
C2A
VOUT
C2B
VOUT = (n + 1)VIN
FIGURE 5-4:
Cascading Multiple Devices To Increase Output Voltage.
ROUT =
ROUT OF SINGLE DEVICE
NUMBER OF DEVICES
...
VIN
1
1
3
3
C1A
2
+
6
4
Shutdown
Control
FIGURE 5-5:
DS21516C-page 10
VIN
TC1240
TC1240A
"1"
SHDN
C1B
5
2
TC1240
TC1240A
+
6
"n"
4 SHDN
...
5
VOUT
+
C2
VOUT = 2 x VIN
Paralleling Multiple Devices To Reduce Output Resistance.
 2003 Microchip Technology Inc.
TC1240/TC1240A
6.0
PACKAGING INFORMATION
6.1
Package Marking Information
6-Pin SOT-23A
1
1
1
&
2
4
5
6
2
3
2
4
3
= part number code + temperature range
(two-digit code)
Device
Code
TC1240
DN
TC1240A
EN
ex: 1240AECH = E
N
3
represents year and 2-month code
4
represents production lot ID code
 2003 Microchip Technology Inc.
DS21516C-page 11
TC1240/TC1240A
6-Lead Plastic Small Outline Transistor (CH) (SOT-23)
E
E1
B
p1
n
D
1
α
c
A
A2
φ
L
β
Units
Dimension Limits
n
p
MIN
A1
INCHES*
NOM
MAX
MILLIMETERS
NOM
6
0.95
1.90
0.90
1.18
0.90
1.10
0.00
0.08
2.60
2.80
1.50
1.63
2.80
2.95
0.35
0.45
0
5
0.09
0.15
0.35
0.43
0
5
0
5
MIN
Number of Pins
6
Pitch
.038
p1
Outside lead pitch (basic)
.075
Overall Height
A
.035
.046
.057
Molded Package Thickness
.035
.043
.051
A2
Standoff
.000
.003
.006
A1
Overall Width
E
.102
.110
.118
Molded Package Width
.059
.064
.069
E1
Overall Length
D
.110
.116
.122
Foot Length
L
.014
.018
.022
φ
Foot Angle
0
5
10
c
Lead Thickness
.004
.006
.008
Lead Width
B
.014
.017
.020
α
Mold Draft Angle Top
0
5
10
β
Mold Draft Angle Bottom
0
5
10
*Controlling Parameter
Notes:
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not
exceed .005" (0.127mm) per side.
MAX
1.45
1.30
0.15
3.00
1.75
3.10
0.55
10
0.20
0.50
10
10
JEITA (formerly EIAJ) equivalent: SC-74A
Drawing No. C04-120
DS21516C-page 12
 2003 Microchip Technology Inc.
TC1240/TC1240A
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.
PART NO.
X
/XX
Device
Temperature
Range
Package
Examples:
a)
b)
Device
TC1240:
TC1240A
Temperature Range
I
Package
CHTR: =
TC1240ECHTR: Tape and Reel, 6L SOT-23
(EIAJ)
TC1240AECHTR: Tape and Reel, 6L SOT-23
(EIAJ)
Positive Doubling Charge Pump with Shutdown
Positive Doubling Charge Pump with Shutdown
= -40°C to +85°C (Industrial)
6L SOT-23, Tape and Reel
Sales and Support
Data Sheets
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and
recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:
1.
2.
3.
Your local Microchip sales office
The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277
The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.
Customer Notification System
Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
 2003 Microchip Technology Inc.
DS21516C-page 13
TC1240/TC1240A
NOTES:
DS21516C-page 14
 2003 Microchip Technology Inc.
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•
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•
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intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
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Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
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•
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Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2003, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999
and Mountain View, California in March 2002.
The Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals,
non-volatile memory and analog products. In
addition, Microchip’s quality system for the
design and manufacture of development
systems is ISO 9001 certified.
 2003 Microchip Technology Inc.
DS21516C-page 15
M
WORLDWIDE SALES AND SERVICE
AMERICAS
ASIA/PACIFIC
Corporate Office
Australia
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200 Fax: 480-792-7277
Technical Support: 480-792-7627
Web Address: http://www.microchip.com
Microchip Technology Australia Pty Ltd
Marketing Support Division
Suite 22, 41 Rawson Street
Epping 2121, NSW
Australia
Tel: 61-2-9868-6733 Fax: 61-2-9868-6755
Atlanta
3780 Mansell Road, Suite 130
Alpharetta, GA 30022
Tel: 770-640-0034 Fax: 770-640-0307
China - Beijing
2 Lan Drive, Suite 120
Westford, MA 01886
Tel: 978-692-3848 Fax: 978-692-3821
Microchip Technology Consulting (Shanghai)
Co., Ltd., Beijing Liaison Office
Unit 915
Bei Hai Wan Tai Bldg.
No. 6 Chaoyangmen Beidajie
Beijing, 100027, No. China
Tel: 86-10-85282100 Fax: 86-10-85282104
Chicago
China - Chengdu
333 Pierce Road, Suite 180
Itasca, IL 60143
Tel: 630-285-0071 Fax: 630-285-0075
Microchip Technology Consulting (Shanghai)
Co., Ltd., Chengdu Liaison Office
Rm. 2401-2402, 24th Floor,
Ming Xing Financial Tower
No. 88 TIDU Street
Chengdu 610016, China
Tel: 86-28-86766200 Fax: 86-28-86766599
Boston
Dallas
4570 Westgrove Drive, Suite 160
Addison, TX 75001
Tel: 972-818-7423 Fax: 972-818-2924
Detroit
Tri-Atria Office Building
32255 Northwestern Highway, Suite 190
Farmington Hills, MI 48334
Tel: 248-538-2250 Fax: 248-538-2260
Kokomo
2767 S. Albright Road
Kokomo, IN 46902
Tel: 765-864-8360 Fax: 765-864-8387
Los Angeles
18201 Von Karman, Suite 1090
Irvine, CA 92612
Tel: 949-263-1888 Fax: 949-263-1338
Phoenix
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7966 Fax: 480-792-4338
San Jose
Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131
Tel: 408-436-7950 Fax: 408-436-7955
Toronto
6285 Northam Drive, Suite 108
Mississauga, Ontario L4V 1X5, Canada
Tel: 905-673-0699 Fax: 905-673-6509
China - Fuzhou
Microchip Technology Consulting (Shanghai)
Co., Ltd., Fuzhou Liaison Office
Unit 28F, World Trade Plaza
No. 71 Wusi Road
Fuzhou 350001, China
Tel: 86-591-7503506 Fax: 86-591-7503521
China - Hong Kong SAR
Microchip Technology Hongkong Ltd.
Unit 901-6, Tower 2, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: 852-2401-1200 Fax: 852-2401-3431
China - Shanghai
Microchip Technology Consulting (Shanghai)
Co., Ltd.
Room 701, Bldg. B
Far East International Plaza
No. 317 Xian Xia Road
Shanghai, 200051
Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
China - Shenzhen
Microchip Technology Consulting (Shanghai)
Co., Ltd., Shenzhen Liaison Office
Rm. 1812, 18/F, Building A, United Plaza
No. 5022 Binhe Road, Futian District
Shenzhen 518033, China
Tel: 86-755-82901380 Fax: 86-755-82966626
China - Qingdao
Rm. B505A, Fullhope Plaza,
No. 12 Hong Kong Central Rd.
Qingdao 266071, China
Tel: 86-532-5027355 Fax: 86-532-5027205
India
Microchip Technology Inc.
India Liaison Office
Marketing Support Division
Divyasree Chambers
1 Floor, Wing A (A3/A4)
No. 11, O’Shaugnessey Road
Bangalore, 560 025, India
Tel: 91-80-2290061 Fax: 91-80-2290062
Japan
Microchip Technology Japan K.K.
Benex S-1 6F
3-18-20, Shinyokohama
Kohoku-Ku, Yokohama-shi
Kanagawa, 222-0033, Japan
Tel: 81-45-471- 6166 Fax: 81-45-471-6122
Korea
Microchip Technology Korea
168-1, Youngbo Bldg. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Korea 135-882
Tel: 82-2-554-7200 Fax: 82-2-558-5934
Singapore
Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre
Singapore, 188980
Tel: 65-6334-8870 Fax: 65-6334-8850
Taiwan
Microchip Technology (Barbados) Inc.,
Taiwan Branch
11F-3, No. 207
Tung Hua North Road
Taipei, 105, Taiwan
Tel: 886-2-2717-7175 Fax: 886-2-2545-0139
EUROPE
Austria
Microchip Technology Austria GmbH
Durisolstrasse 2
A-4600 Wels
Austria
Tel: 43-7242-2244-399
Fax: 43-7242-2244-393
Denmark
Microchip Technology Nordic ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: 45-4420-9895 Fax: 45-4420-9910
France
Microchip Technology SARL
Parc d’Activite du Moulin de Massy
43 Rue du Saule Trapu
Batiment A - ler Etage
91300 Massy, France
Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Germany
Microchip Technology GmbH
Steinheilstrasse 10
D-85737 Ismaning, Germany
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Italy
Microchip Technology SRL
Via Quasimodo, 12
20025 Legnano (MI)
Milan, Italy
Tel: 39-0331-742611 Fax: 39-0331-466781
United Kingdom
Microchip Ltd.
505 Eskdale Road
Winnersh Triangle
Wokingham
Berkshire, England RG41 5TU
Tel: 44-118-921-5869 Fax: 44-118-921-5820
03/25/03
DS21516C-page 16
 2003 Microchip Technology Inc.