TC574802ECTRT [MICROCHIP]
SPECIALTY ANALOG CIRCUIT, PDSO5, EIAJ, SC-74A, SOT-23A, 5 PIN;型号: | TC574802ECTRT |
厂家: | MICROCHIP |
描述: | SPECIALTY ANALOG CIRCUIT, PDSO5, EIAJ, SC-74A, SOT-23A, 5 PIN 光电二极管 |
文件: | 总11页 (文件大小:70K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TC57 Series
Linear Regulator Controller
FEATURES
GENERAL DESCRIPTION
■ Low Dropout Voltage:
The TC57 is a low dropout regulator controller that
operates with an external PNP pass transistor, allowing the
user to tailor the LDO characteristics to suit the application
at hand. This results in lower dropout operation (and often
lower cost) compared with traditional linear regulators with
on-board pass transistors. The maximum output current of
a TC57-based regulator circuit is limited only by the charac-
teristics of the external pass transistor. For example, a
maximum output current of 650 mA (with a dropout voltage
of 100 mV) results when an FZT749 pass transistor is used,
while a Darlington configuration can deliver up to 4A.
Flexibility, andsuperiorperformancemakethisfamilyof
regulator controllers the ideal choice in applications where
low dropout voltage and low installed cost are key.
100 mV @ 650 mA with FZT749 PNP Transistor
■ Output Voltage: 2V to 6V in 0.1V Increments
■ 2.7V to 8V Supply Range
■ Low Operating Current: ...........................................
50 µAOperating; 0.2 µA Shutdown
■ Low-True Chip Enable
■ Output Accuracy < ±2%
■ Small Package: 5-Pin SOT-23A
TYPICAL APPLICATIONS
■ Battery Operated Systems
■ Portable Instruments
■ High-Efficiency Linear Regulator
■ Post-Regulator for SMPS
■ Power Supply or Battery Back-Up Supply for
Memory
ORDERING INFORMATION
PART CODE TC57 XX 02 ECT XX
Output Voltage:
Ex: 30 = 3.0V
TYPICAL APPLICATION
Tolerance:
FZT749
Q1
2 = ±2%
V
+3V
OUT
V
+3.3V
IN
Temperature/Package:
E: –40°C to +85°C
R
47K
BE
R
1K
B
CT: 5-Pin SOT-23A
R
L
4
C
L
C
IN
10 µF
(Tantalum)
Taping Direction:
TR: Standard Taping
RT: Reverse Taping
10 µF
EXT
3
(Tantalum)
V
OUT
2
V
IN
TC573002ECT
OFF
5
ON
SHDN
PIN CONFIGURATION
GND
1
*5-Pin SOT-23A
EXT
4
SHDN
5
3.3V Line Input, 3.0V, 500 mA Output LDO
TC57
3
1
2
VOUT
GND
VIN
Note: * 5-Pin SOT-23A is equivalent to the EIAJ SC-74A
© 2001 Microchip Technology Inc. DS21437A
TC57-2 1/25/00
Linear Regulator Controller
TC57 Series
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields. Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent 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 operational sections of the specifications is not implied.
Exposure to Absolute Maximum Rating Conditions for extended periods
may affect device reliability.
ABSOLUTE MAXIMUM RATINGS*
Voltage on VIN and EXT Pins ................................... +12V
Voltage on VOUT and SHDN Pins.....–0.3V to (VIN + 0.3V)
EXT Pin Current ......................................................50 mA
Operating Temperature Range (TC)........ – 40°C to +85°C
Storage Temperature (TSTG) ................. – 40°C to +150°C
Power Dissipation ................................................150 mW
ELECTRICAL CHARACTERISTICS TC57EP3002 (NOTE 2): (SHDN = GND, VIN = VOUT + 1V, VOUT = 3V
to 5V, IOUT = 0, TA = 25°C, Test Circuit of Figure 1, unless otherwise noted.)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
VIN
Input Voltage
—
—
—
8
8
V
V
VEXT
VOUT
∆VOUT
Voltage on EXT Output
Output Voltage
—
0.98 x VR
–60
—
IOUT = 50 mA (Note 1)
1 mA ≤ IOUT ≤ 100 mA (Note 3)
IOUT = 100 mA
V
R ± 0.5% 1.02 x VR
V
Load Regulation
—
100
50
60
—
mV
mV
µA
VIN – VOUT Dropout Voltage (Note 2)
IDD
Supply Current
VSHDN = VIN = 5V
—
80
0.6
0.3
—
ISHDN
Shutdown Supply Current
VSHDN = GND
—
—
µA
∆VOUT/∆VIN Line Regulation
IOUT = 50 mA, 4V ≤ VIN ≤ 8V (Note 3)
—
0.1
±100
%/V
ppm/°C
∆VOUT/∆T
VOUT Temp. Coefficient
IOUT = 10 mA, –40°C < TJ < +85°C
—
(Note 3)
ILEXT
IEXT
VIH
VIL
IIH
EXT Pin Leakage Current
EXT Sink Current
—
—
—
—
0.5
25
µA
mA
V
(Note 4)
SHDN Input High Logic Threshold
SHDN Input Low Logic Threshold
SHDN Input Current @ VIH
SHDN Input Current @ VIL
1.5
—
—
—
—
0.25
0.1
0
V
VSHDN = VIN = 5V
VSHDN = GND
—
—
µA
µA
IIL
–0.2
–0.05
NOTES: 1. VR is the regulator output voltage setting.
2. Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured
at a 1V differential.
3. Varies with type of pass transistor used. Numbers shown are for the test circuit of Figure 1.
4. The product of IEXT x VEXT must be less than the maximum allowable power dissipation.
© 2001 Microchip Technology Inc. DS21437A
TC57-2 1/25/00
2
Linear Regulator Controller
TC57 Series
PIN DESCRIPTION
Pin Number
Name
Description
1
2
3
4
5
GND
VIN
Ground Terminal.
Supply Voltage Input. Positive input voltage of 2.7V to 8.0V.
VOUT
EXT
Regulator Voltage Sense Input. Connects to the collector of the external PNP pass transistor.
Base Drive for the external PNP pass transistor.
SHDN
Shutdown Input. The device is enabled when SHDN ≤ VIL. The device enters a low power
shutdown state when SHDN ≥ VIH. During shutdown, the output is disabled, and supply
current falls to less than 1 µA.
FZT749
Q1
V
IN
V
OUT
R
33K
BE
C
IN
R
680Ω
B
10 µF
R
L
(Tantalum)
4
C
L
10 µF
EXT
3
(Tantalum)
V
OUT
2
5
V
IN
TC57XX02ECT
OFF
ON
SHDN
GND
1
Figure 1. Test Circuit
TC57-2 1/25/00
© 2001 Microchip Technology Inc. DS21437A
3
Linear Regulator Controller
TC57 Series
For example, assume a desired continuous output cur-
rent of 1.0A, an input voltage of 5V, and an FZT749 pass
transistor. The FZT749 has a typical hFE of 170, and a VBE
of 0.8V; both specified at a collector current of 1.0A. Substi-
tuting these values into the equation above results in an RB
value of 704Ω (closest standard value = 680Ω).
DETAILED DESCRIPTION
The TC57 series of precision low dropout regulator
controllers use an external PNP transistor to accommodate
a wide range of output currents. A series resistor (RB) limits
the maximum base current drawn from the PNP transistor.
Limiting the base drive both determines the regulator’s
output current capability, as well as limits ground current
whenthedeviceisoperatedindropout.ThePNPtransistor’s
VCE(SAT) is the only factor limiting dropout voltage.
Pull-Up Resistor and Output Capacitor (Figure 2)
A pull-up resistor (RBE, installed between the base and
emitter of the pass transistor) facilitates rapid turn-off of the
pass transistor in the event of a sudden decrease in load.
Recommended values for this resistor are between 20 KΩ
and 47 KΩ. A Tantalum output capacitor of at least 10 µF
mustbeusedtoguaranteestability. Highervaluesdecrease
output noise and eliminate power-on overshoot, but extend
power-up times. Table 2a lists several capacitor choices.
Transistor Selection
The PNP pass transistor must have satisfactory power
dissipation,currentgain,andcollectorcurrentspecifications
to suit the application at hand. The maximum output current
the circuit can deliver is influenced by hFE. The highest
guaranteed output current is given by:
Input Capacitor (Figure 2)
ILOAD(MAX) = 25 mA x hFE(MIN)
Theadditionofaninputcapacitorfurtherreducesoutput
noise, and negates the effects of power supply input imped-
ance. A 10 µF(min) Tantalum capacitor is recommended.
Equation 1.
Thetransistor’sactualpowerdissipation(PD)isequalto
the maximum load current times the maximum input/output
voltage differential, or:
Shutdown Mode
The TC57 enters a low power shutdown mode when the
shutdown input (SHDN) is high. During shutdown, the regu-
lator is disabled, the output capacitor is discharged through
the load, and supply current to the TC57 decreases to less
than1µA.NormaloperationresumeswhenSHDNisbrought
low. If the shutdown mode is not used, SHDN should be tied
to VIN.
PD = ILOAD(MAX) x (VIN(MAX) –VOUT(min)
)
Equation 2.
The ideal transistor has a minimum hFE of 100, and a
VCE(SAT) oflessthan0.6Vatfulloutputcurrent. Forexample,
the Zetex FZT749 has an hFE of 170 at a collector current of
1A, and a guaranteed VCE(SAT) of 0.3V at a base current of
100 mA. It is packaged in a SOT223 and is recommended
for use with the TC57. Other transistors are also suitable,
depending on the required input and output voltages and
output current (Table 2a).
FZT749
V
V
OUT
IN
=
5V
= 3.3V
Q1
R
33KΩ
BE
Base-Current Limiting Resistor (Figure 2)
R
680Ω
C
B
IN
10 µF
(Tantalum)
C
OUT
10 µF
(Tantalum)
BasecurrentlimitingresistorRB canbeestimatedusing:
4
EXT
hFE(VIN – VBE
)
2
1
3
V
V
OUT
IN
RB =
IOUT
TC57
GND
Equation 3.
5
SHDN
ON
OFF
where: hFE is the current gain of the pass transistor
VIN is the input voltage (in volts)
VBE is the base-emitter voltage at the desired output
current (in volts)
IOUT is the output current (in Amps)
Figure 2. 3.3V, 1A Regulator Using 5V Supply Input
© 2001 Microchip Technology Inc. DS21437A
TC57-2 1/25/00
4
Linear Regulator Controller
TC57 Series
MARKINGS
Table 2a. Component Suppliers
5-PIN SOT-23A
Device
Manufacturer
Product
Method
CAPACITORS
267 Series
Matsuo
Surface Mount
Surface Mount
Surface Mount
Through-Hole
3
F95 Tantalum Series Nichicon
595 Tantalum Series Sprague
OS-CON Series
Low-ESR Organic
Semiconductor
LXF Series
Sanyo
ꢀ represents integer part of output voltage
United Chemi-Con
Through-Hole
BIPOLAR TRANSISTORS
Symbol
Voltage
ZTX749
Zetex
Through-Hole
Through-Hole
Through-Hole
Through-Hole
2
3
4
5
6
2.
3.
4.
5.
6.
T1P42
Motorola
Motorola
Motorola
2N4403
2N2907A
CMPT2907A
PZT2907AT1
FZT749
Central Semiconductor Surface Mount
Motorola
Zetex
Surface Mount
Surface Mount
ꢁ represents 1st decimal of output voltage
Symbol
Voltage
Symbol
Voltage
Table 2b. Manufacturers’ Phone and Fax Numbers
0
1
2
3
4
.0
.1
.2
.3
.4
5
6
7
8
9
.5
.6
.7
.8
.9
Manufacturer Country Telephone
Fax
Central
Semiconductor
Matsuo
USA
USA
USA
USA
Japan
USA
Japan
USA
(516) 435-1110 (516) 435-1824
(714) 969-2491 (714) 960-6492
(602) 244-3370 (602) 244-4015
(847) 843-7500 (847) 843-2798
81-7-5231-8461 81-7-5256-4158
(619) 661-6835 (619) 661-1055
81-7-2070-6306 81-7-2070-1174
(603) 224-1961 (603) 224-1430
Motorola
ꢂ represents production lot ID code
Nichicon
Sanyo
Sprague
United
Chemi-Con
Zetex
USA
USA
UK
(714) 255-9500 (714) 255-9400
(516) 543-7100 (516) 864-7630
44-61-627-5105 44-61-627-5467
TC57-2 1/25/00
© 2001 Microchip Technology Inc. DS21437A
5
Linear Regulator Controller
TC57 Series
TYPICAL CHARACTERISTICS CURVES
1. OUTPUT VOLTAGE vs. OUTPUT CURRENT
TC573302(3.3V)
TC575002(5V)
= 6V, C =10µF (Tantalum)
TC574002(4V)
T
= 25°C
T
= 25°C
A
T
= 25°C
A
A
V
V
= 4.3V, C =10µF (Tantalum)
IN L
V
= 5V, C =10µF (Tantalum)
L
IN
L
IN
4.1
4.0
3.4
3.3
5.1
5.0
3.9
3.8
3.7
3.2
3.1
3.0
4.9
4.8
4.7
0
100
200
300
400
(mA)
500
0
100
400
0
100
400
(mA)
OUT
200
300
500
200
300
500
OUTPUT CURRENT:I
OUTPUT CURRENT:I
OUTPUT CURRENT:I
(mA)
OUT
OUT
2. OUTPUT VOLTAGE vs. INPUT VOLTAGE
TC575002(5V)
TC575002(5V)
TC574002(4V)
C
=10µF (Tantalum),T = 25°C
C
=10µF (Tantalum),T = 25°C
A
C
=10µF (Tantalum),T = 25°C
L
A
L
L
A
4.2
5.10
5.05
5.2
I
=1mA
OUT
4.0
3.8
I
=1mA
I
=1mA
5.0
4.8
OUT
OUT
500mA
500mA
100mA
500mA
100mA
5.00
4.95
3.6
4.6
100mA
3.4
3.2
4.4
4.2
4.90
4.85
4.5
4.0
6
8
7
5.5
5.0
5
3.5
4.5
INPUT VOLTAGE :V (V)
IN
INPUT VOLTAGE :V (V)
IN
INPUT VOLTAGE :V (V)
IN
TC573302(3.3V)
TC573302(3.3V)
TC574002(4V)
C
=10µF (Tantalum),T = 25°C
A
C
=10µF (Tantalum),T = 25°C
C =10µF (Tantalum),T = 25°C
L A
L
L
A
3.5
4.10
4.05
3.40
3.3
3.1
3.35
I
=1mA
OUT
100mA
500mA
I
=1mA,
500mA
OUT
I
=1mA
OUT
4.00
3.95
3.30
3.25
2.9
100mA,
500mA
100mA
2.7
2.5
3.90
3.85
3.20
3.15
3.8
5
7
4
6
3.3
4
5
3
6
2.8
INPUT VOLTAGE V (V)
IN
INPUT VOLTAGE V (V)
IN
INPUT VOLTAGE V
(V)
IN
© 2001 Microchip Technology Inc. DS21437A
TC57-2 1/25/00
6
Linear Regulator Controller
TC57 Series
TYPICAL CHARACTERISTICS CURVES (CONT.)
3. DROPOUT VOLTAGE vs. OUTPUT CURRENT
TC573302(3.3V)
TC575002(5V)
=10µF (Tantalum)
TC574002(4V)
=10µF (Tantalum)
C
=10µF (Tantalum)
C
C
L
L
L
1.0
0.8
1.0
0.8
0.6
1.0
0.8
0.6
0.6
80°C
0.4
0.2
0.4
0.2
0.0
80°C
0.4
0.2
0.0
T
= 25°C
80°C
OPR
400
T
=
25°C
OPR
400
T
= 25°C
OPR
400
- 30°C
- 30°C
- 30°C
0.0
0
200
800
600
1000
0
200
600
800 1000
0
200
800
600
1000
OUTPUT CURRENT:I
(mA)
OUTPUT CURRENT:I
(mA)
OUT
OUTPUT CURRENT:I
(mA)
OUT
OUT
4. SUPPLY CURRENT vs. INPUT VOLTAGE
TC575002(5V)
TC574002(4V)
TC573302(3.3V)
50
50
40
50
40
40
30
T
= 25°C, 80°C
OPR
T
= 25°C, 80°C
30
20
OPR
30
20
T
=
25°C, 80°C
- 30°C
OPR
- 30°C
20
- 30°C
10
0
10
0
10
0
6
4
4
3
5
5
6
5
7
6
7
8
INPUT VOLTAGE :V (V)
IN
INPUT VOLTAGE :V (V)
IN
INPUT VOLTAGE :V (V)
IN
5. OUTPUT VOLTAGE vs. AMBIENT TEMPERATURE
TC575002(5V)
TC574002(4V)
TC573302(3.3V)
V
= 6.0V
V
= 5.0V
V
= 4.3V
IN
= 100mA,C =10µF (Tantalum)
IN
IN
I
I
= 100mA,C =10µF (Tantalum)
I
= 100mA,C =10µF (Tantalum)
OUT
L
OUT
L
OUT
L
5.10
5.05
4.10
4.05
3.40
3.35
5.00
4.95
4.00
3.30
3.25
3.20
3.95
3.90
4.90
-40
0
-20
20
40
T
60 80
(°C)
60
(°C)
80
-20
20
40
T
-20
0
20
60
(°C)
0
40
T
80
-40
-40
AMBIENT TEMP.
AMBIENT TEMP.
AMBIENT TEMP.
A
A
A
TC57-2 1/25/00
© 2001 Microchip Technology Inc. DS21437A
7
Linear Regulator Controller
TC57 Series
TYPICAL CHARACTERISTICS CURVES (CONT.)
6. SUPPLY CURRENT vs. AMBIENT TEMPERATURE
TC573302(3.3V)
TC575002(5V)
TC574002(4V)
V
=4.3V
V
=6V
V
=5V
IN
IN
IN
50
40
50
40
30
50
40
30
30
20
10
20
10
0
20
10
0
0
-40
-20
0
20
40
60 80
-40
-20
0
20
40
60 80
-40
-20
0
20
40
60 80
AMBIENT TEMP. T (°C)
AMBIENT TEMP. T (°C)
AMBIENT TEMP. T (°C)
A
A
A
7. INPUT TRANSIENT RESPONSE
TC575002(5V)
TC575002(5V)
I
= 10mA, C =10µF(Tantalum)
I
= 100mA, C =10µF(Tantalum)
OUT
L
OUT
L
8
7
8
7
5.4
5.3
5.4
5.3
INPUT VOLTAGE
INPUT VOLTAGE
6
5
6
5
5.2
5.1
5.2
5.1
OUTPUT VOLTAGE
OUTPUT VOLTAGE
4
3
4
3
5.0
4.9
5.0
4.9
Time (0.4 msec/div)
TC574002(4V)
Time (0.4 msec/div)
TC574002(4V)
I
= 10mA, C =10µF(Tantalum)
I
= 100mA, C =10µF(Tantalum)
OUT
L
OUT
L
7
6
4.4
4.3
7
6
4.4
4.3
INPUT VOLTAGE
INPUT VOLTAGE
5
4
4.2
4.1
5
4
4.2
4.1
OUTPUT VOLTAGE
OUTPUT VOLTAGE
3
2
4.0
3.9
3
2
4.0
3.9
Time (0.4 msec/div)
Time (0.4 msec/div)
© 2001 Microchip Technology Inc. DS21437A
TC57-2 1/25/00
8
Linear Regulator Controller
TC57 Series
TYPICAL CHARACTERISTICS CURVES (CONT.)
7. INPUT TRANSIENT RESPONSE (CONT.)
TC573302(3.3V)
TC573302(3.3V)
I
= 10mA, C =10µF(Tantalum)
L
I
=
100mA, C =10µF(Tantalum)
OUT
OUT
L
6
5
3.7
3.6
6
5
3.7
3.6
INPUT VOLTAGE
INPUT VOLTAGE
4
3
3.5
3.4
4
3
3.5
3.4
OUTPUT VOLTAGE
OUTPUT VOLTAGE
2
1
3.3
3.2
2
1
3.3
3.2
Time (0.4 msec/div)
8. LOAD TRANSIENT RESPONSE
Time (0.4 msec/div)
TC574002(4V)
TC575002(5V)
6V, C =10µF(Tantalum)
V
=
V
= 5V, C =10µF(Tantalum)
L
IN
L
IN
1000
800
1000
800
5.10
5.05
4.10
4.05
OUTPUTVOLTAGE
OUTPUT CURRENT
600
400
5.00
4.95
600
400
4.00
3.95
OUTPUT VOLTAGE
OUTPUT CURRENT
300mA
1mA
300mA
1mA
200
0
4.90
4.85
200
0
3.90
3.85
Time (10 msec/div)
Time (10 msec/div)
TC573302(3.3V)
V
= 4.3V, C =10µF(Tantalum)
L
IN
1000
800
3.40
3.35
OUTPUTVOLTAGE
3.30
3.25
600
400
OUTPUT CURRENT
300mA
1mA
3.20
3.15
200
0
Time (10 msec/div)
TC57-2 1/25/00
© 2001 Microchip Technology Inc. DS21437A
9
Linear Regulator Controller
TC57 Series
TAPING FORM
Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices
PIN 1
User Direction of Feed
User Direction of Feed
M a r k i n g
D e v i c e
Device
Marking
W
PIN 1
P
Standard Reel Component Orientation
TR Suffix Device
Reverse Reel Component Orientation
RT Suffix Device
(Mark Right Side Up)
(Mark Upside Down)
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
3000
Reel Size
5-Pin SOT-23A
8 mm
4 mm
7 in
PACKAGE DIMENSIONS
5-Pin SOT-23A (EIAJ SC-74A)
.075 (1.90)
REF.
.071 (1.80)
.059 (1.50)
.122 (3.10)
.098 (2.50)
.020 (0.50)
.012 (0.30)
.037 (0.95)
REF.
PIN 1
.122 (3.10)
.106 (2.70)
.057 (1.45)
.035 (0.90)
.010 (0.25)
.004 (0.09)
10° MAX.
.006 (0.15)
.000 (0.00)
.024 (0.60)
.004 (0.10)
Dimensions: inches (mm)
© 2001 Microchip Technology Inc. DS21437A
TC57-2 1/25/00
10
WORLDWIDE SALES AND SERVICE
New York
150 Motor Parkway, Suite 202
Hauppauge, NY 11788
AMERICAS
Corporate Office
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
ASIA/PACIFIC (continued)
Singapore
Microchip Technology Singapore Pte Ltd.
200 Middle Road
#07-02 Prime Centre
Tel: 631-273-5305 Fax: 631-273-5335
San Jose
Microchip Technology Inc.
2107 North First Street, Suite 590
San Jose, CA 95131
Singapore, 188980
Tel: 65-334-8870 Fax: 65-334-8850
Rocky Mountain
Taiwan
Microchip Technology Taiwan
11F-3, No. 207
Tung Hua North Road
Taipei, 105, Taiwan
Tel: 886-2-2717-7175 Fax: 886-2-2545-0139
Tel: 408-436-7950 Fax: 408-436-7955
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7966 Fax: 480-792-7456
Toronto
6285 Northam Drive, Suite 108
Mississauga, Ontario L4V 1X5, Canada
Tel: 905-673-0699 Fax: 905-673-6509
Atlanta
500 Sugar Mill Road, Suite 200B
Atlanta, GA 30350
Tel: 770-640-0034 Fax: 770-640-0307
Austin
Analog Product Sales
8303 MoPac Expressway North
Suite A-201
ASIA/PACIFIC
China - Beijing
Microchip Technology Beijing Office
Unit 915
New China Hong Kong Manhattan Bldg.
No. 6 Chaoyangmen Beidajie
Beijing, 100027, No. China
Tel: 86-10-85282100 Fax: 86-10-85282104
EUROPE
Australia
Microchip Technology Australia Pty Ltd
Suite 22, 41 Rawson Street
Epping 2121, NSW
Austin, TX 78759
Tel: 512-345-2030 Fax: 512-345-6085
Australia
Tel: 61-2-9868-6733 Fax: 61-2-9868-6755
Denmark
Microchip Technology Denmark ApS
Regus Business Centre
Lautrup hoj 1-3
Ballerup DK-2750 Denmark
Tel: 45 4420 9895 Fax: 45 4420 9910
Boston
2 Lan Drive, Suite 120
Westford, MA 01886
Tel: 978-692-3848 Fax: 978-692-3821
China - Shanghai
Microchip Technology Shanghai Office
Room 701, Bldg. B
Far East International Plaza
No. 317 Xian Xia Road
Shanghai, 200051
Boston
Analog Product Sales
Unit A-8-1 Millbrook Tarry Condominium
97 Lowell Road
Concord, MA 01742
France
Tel: 86-21-6275-5700 Fax: 86-21-6275-5060
Arizona Microchip Technology SARL
Parc díActivite du Moulin de Massy
43 Rue du Saule Trapu
Hong Kong
Microchip Asia Pacific
RM 2101, Tower 2, Metroplaza
223 Hing Fong Road
Kwai Fong, N.T., Hong Kong
Tel: 852-2401-1200 Fax: 852-2401-3431
Tel: 978-371-6400 Fax: 978-371-0050
Chicago
333 Pierce Road, Suite 180
Itasca, IL 60143
Tel: 630-285-0071 Fax: 630-285-0075
Dallas
4570 Westgrove Drive, Suite 160
Addison, TX 75001
Tel: 972-818-7423 Fax: 972-818-2924
Batiment A - ler Etage
91300 Massy, France
Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79
Germany
Arizona Microchip Technology GmbH
Gustav-Heinemann Ring 125
D-81739 Munich, Germany
India
Microchip Technology Inc.
India Liaison Office
Divyasree Chambers
Tel: 49-89-627-144 0 Fax: 49-89-627-144-44
1 Floor, Wing A (A3/A4)
No. 11, OíShaugnessey Road
Bangalore, 560 025, India
Tel: 91-80-2290061 Fax: 91-80-2290062
Dayton
Germany
Analog Product Sales
Lochhamer Strasse 13
D-82152 Martinsried, Germany
Tel: 49-89-895650-0 Fax: 49-89-895650-22
Two Prestige Place, Suite 130
Miamisburg, OH 45342
Tel: 937-291-1654 Fax: 937-291-9175
Japan
Detroit
Tri-Atria Office Building
32255 Northwestern Highway, Suite 190
Farmington Hills, MI 48334
Tel: 248-538-2250 Fax: 248-538-2260
Microchip Technology Intl. Inc.
Benex S-1 6F
Italy
Arizona Microchip Technology SRL
Centro Direzionale Colleoni
Palazzo Taurus 1 V. Le Colleoni 1
20041 Agrate Brianza
3-18-20, Shinyokohama
Kohoku-Ku, Yokohama-shi
Kanagawa, 222-0033, Japan
Tel: 81-45-471- 6166 Fax: 81-45-471-6122
Los Angeles
18201 Von Karman, Suite 1090
Irvine, CA 92612
Milan, Italy
Tel: 39-039-65791-1 Fax: 39-039-6899883
Korea
Microchip Technology Korea
168-1, Youngbo Bldg. 3 Floor
Samsung-Dong, Kangnam-Ku
Seoul, Korea
Tel: 949-263-1888 Fax: 949-263-1338
United Kingdom
Arizona Microchip Technology Ltd.
505 Eskdale Road
Winnersh Triangle
Wokingham
Mountain View
Analog Product Sales
1300 Terra Bella Avenue
Mountain View, CA 94043-1836
Tel: 650-968-9241 Fax: 650-967-1590
Tel: 82-2-554-7200 Fax: 82-2-558-5934
Berkshire, England RG41 5TU
Tel: 44 118 921 5869 Fax: 44-118 921-5820
01/09/01
All rights reserved. © 2001 Microchip Technology Incorporated. Printed in the USA. 1/01
Printed on recycled paper.
Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by
updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual
property rights arising from such use or otherwise. Use of Microchipís products as critical components in life support systems is not authorized except with
express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellec-
tual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights
reserved. All other trademarks mentioned herein are the property of their respective companies.
TC57-2 1/25/00
© 2001 Microchip Technology Inc. DS21437A
11
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