TC7800A Series - Microchip Technology

TC7800A Series

TC7800/TC7800A-1 5/30/00

Three-Terminal Positive Voltage Regulators

FEATURES

■Output Current in Excess of 1.0A

■No External Components Required

■Internal Thermal Overload Protection

■Internal Short Circuit Current Limiting

■Output Transistor Safe–Area Compensation

■Output Voltage Offered in 2% Tolerance

■Available in Surface Mount DDPAK and Standard

3–Lead Transistor Packages

■Previous Commercial Temperature Range has

been Extended to a Junction Temperature Range

of –40°C to +125°C

GENERAL DESCRIPTION

These voltage regulators are monolithic integrated cir-

cuits designed as fixed–voltage regulators for a wide variety

of applications including local, on–card regulation. These

regulators employ internal current limiting, thermal shut-

down, and safe–area compensation. With adequate

heatsinking they can deliver output currents in excess of

1.0A. Although designed primarily as a fixed voltage regula-

tor, these devices can be used with external components to

obtain adjustable voltages and currents.

ORDERING INFORMATION

Part Temperature

Number* Package Range

TC7805A-5.0VBB 3-Pin TO-220B –40˚ to + 125˚C

TC7812A-12.0VBB 3-Pin TO-220B –40˚ to + 125˚C

TC7815A-15.0VBB 3-Pin TO-220B –40˚ to + 125˚C

TC7805A-5.0VRB 3-Pin DDPAK-B –40˚ to + 125˚C

TC7812A-12.0VRB 3-Pin DDPAK-B –40˚ to + 125˚C

TC7815A-15.0VRB 3-Pin DDPAK-B –40˚ to + 125˚C

TC7824A-24.0VRB 3-Pin DDPAK-B –40˚ to + 125˚C

Note: Contact company about other voltage and package options.

STANDARD APPLICATION

TC78XXA

Input

CIN*

0.33µF CO**

Output

Heatsink surface

connected to Pin 2.

Heatsink surface

(shown as terminal 4 in

case outline drawing)

connected to Pin 2.

123

3-Pin TO-220B 3-Pin DDPAK-B

INPUT

GND

OUTPUT

TC78XXA

INPUT

GND

OUTPUT

A common ground is required between the input and the output

voltages. The input voltage must remain typically 2.0 V above the

output voltage even during the low point on the input ripple voltage.

XX, These two digits of the type number indicate nominal voltage.

IN is required if regulator is located an appreciable distance

from power supply filter.

** CO is not needed for stability; however, it does improve

transient response. Values of less than 0.1µF could cause

instability.

TC7800A Series

TC7800/TC7800A-1 5/30/00

Three-Terminal Positive Voltage Regulators

ABSOLUTE MAXIMUM RATINGS*

(TA = 25°C, unless otherwise noted.)

Input Voltage

(5.0 – 18V) ................................................... VIN = 35VDC

(24V) ............................................................ VIN = 40VDC

Power Dissipation (TA = 25°C)..PD = Internally Limited W

Case TO-220B

Thermal Resistance,

Junction-to-Ambient...............................θJA = 65˚C/W

Junction-to-Case ................................. θJC = 5.0˚C/W

Power Dissipation (TA = 25°C)..... PD = Internally Limited W

DDPAK-B

Thermal Resistance,

Junction-to-Ambient.........θJA = (See Figure 13) ˚C/W

Junction-to-Case ..................................θJA = 5.0˚C/W

Storage Junction

Temperature Range ............TSTG = –65°C to +150°C

Operating Junction Temperature .................. TJ = +150˚C

*Note: ESD Data Available upon request.

ELECTRICAL CHARACTERISTICS: (VIN = 10V, IOUT = 1.0A, TJ = TLOW to THIGH [Note 1], unless otherwise noted.)

Symbol Parameter Test Conditions Min Typ Max Units

TC7805A

VOUT Output Voltage TJ = 25°C 4.9 5.0 5.1 VDC

VOUT Output Voltage 5.0mA ≤ IOUT ≤ 0.1A, PD ≤ 15W 4.8 5.0 5.2 VDC

7.5VDC ≤ VIN ≤ 20VDC

REGLINE Line Regulation Note 2 mV

7.5VDC ≤ VIN ≤ 25VDC, IOUT = 500mA — 0.5 10

8.0VDC ≤ VIN ≤ 12VDC, IOUT = 1.0A — 0.8 12

8.0VDC ≤ VIN ≤ 12VDC, IOUT = 1.0A,TJ = 25˚C — 1.3 4.0

7.3VDC ≤ VIN ≤ 20VDC, IOUT = 1.0A,TJ = 25˚C — 4.5 10

REGLOAD Load Regulation Note 2 mV

5.0mA ≤ IOUT ≤ 1.5A, TJ = 25˚C — 1.3 25

5.0mA ≤ IOUT ≤ 1.0A — 0.8 25

250mA ≤ IOUT ≤ 750mA — 0.53 15

IBQuiescent Current — 3.2 6.0 mA

∆IBQuiescent Current Change 8.0VDC ≤ VIN ≤ 25VDC, IOUT = 500mA — 0.3 0.8 mA

7.5VDC ≤ VIN ≤ 20VDC, TJ = 25˚C — — 0.8

5.0mA ≤ IOUT ≤ 1.0A — 0.08 0.5

RR Ripple Rejection 8.0VDC ≤ VIN ≤ 18VDC, f = 120Hz, IOUT = 500mA 68 83 — dB

VIN – VOUT Dropout Voltage IOUT = 1.0A, TJ = 25°C — 2.0 — VDC

VNOutput Noise Voltage TA = 25°C—10—µV/VOUT

10Hz ≤ f ≤ 100kHz

ROUT Output Resistance f = 1.0kHz — 0.9 — mΩ

ISC Short Circuit Current Limit T A = 25°C — 0.2 — A

VIN = 35VDC

IMAX Peak Output Current TJ = 25°C — 2.2 – A

TCVOUT Average Temperature

Coefficientof Output Voltage — -0.3 – mV/°C

NOTES: 1. TLOW = –40°C for TC78XXA, THIGH = +125°C for TC78XX

2. Load and line regulation are specified at constant junction temperature. Changes in VOUT due to heating effects must be taken into

account separately. Pulse testing with low duty cycle is used.

TC7800A Series

Three-Terminal Positive Voltage Regulators

TC7800/TC7800A-1 5/30/00

ELECTRICAL CHARACTERISTICS: (VIN = 19V, IOUT = 1.0A, TJ = TLOW to THIGH [Note 1], unless otherwise noted.)

Symbol Parameter Test Conditions Min Typ Max Units

TC7812A

VOUT Output Voltage TJ = 25°C 11.75 12 12.25 VDC

VOUT Output Voltage 5.0mA ≤ IOUT ≤ 0.1A, PD ≤ 15W 11.5 12 12.5 VDC

14.8VDC ≤ VIN ≤ 27VDC

REGLINE Line Regulation Note 2 mV

14.8VDC ≤ VIN ≤ 30VDC, IOUT = 500mA — 3.8 18

16VDC ≤ VIN ≤ 22VDC, IOUT = 1.0A — 2.2 20

14.5VDC ≤ VIN ≤ 27VDC, TJ = 25°C — 6.0 120

REGLOAD Load Regulation Note 2 mV

5.0mA ≤ IOUT ≤ 1.5A, TJ = 25°C——25

5.0mA ≤ IOUT ≤ 1.0A — — 25

IBQuiescent Current — 3.4 6.0 mA

∆IBQuiescent Current Change 15VDC ≤ VIN ≤ 30VDC, IOUT = 500mA — — 0.8 mA

14.8VDC ≤ VIN ≤ 27VDC, TJ = 25°C — — 0.8

5.0mA ≤ IOUT ≤ 1.0A, TJ = 25°C — — 0.5

RR Ripple Rejection 15VDC ≤ VIN ≤ 25VDC, f = 120Hz, IOUT = 500mA 55 60 — dB

VIN – VOUT Dropout Voltage IOUT = 1.0A, TJ = 25°C — 2.0 — VDC

VNOutput Noise Voltage TA = 25°C—10—µV/VOUT

10Hz ≤ f ≤ 100kHz

ROUT Output Resistance f = 1.0kHz — 1.1 — mΩ

ISC Short Circuit Current Limit T A = 25°C — 0.2 — A

VIN = 35VDC

IMAX Peak Output Current TJ = 25°C — 2.2 – A

TCVOUT Average Temperature

Coefficient of Output Voltage — –0.8 – mV/°C

NOTES: 1. TLOW = –40°C for TC78XXA, THIGH = +125°C for TC78XX

2. Load and line regulation are specified at constant junction temperature. Changes in VOUT due to heating effects must be taken into

account separately. Pulse testing with low duty cycle is used.

TC7800A Series

TC7800/TC7800A-1 5/30/00

Three-Terminal Positive Voltage Regulators

ELECTRICAL CHARACTERISTICS: (VIN = 23V, IOUT = 1.0A, TJ = TLOW to THIGH [Note 1], unless otherwise noted.)

Symbol Parameter Test Conditions Min Typ Max Units

TC7815A

VOUT Output Voltage TJ = 25°C 14.7 15 15.3 VDC

VOUT Output Voltage 5.0mA ≤ IOUT ≤ 0.1A, PD ≤ 15W 14.4 15 15.6 VDC

17.9VDC ≤ VIN ≤ 30VDC

REGLINE Line Regulation Note 2 mV

17.9VDC ≤ VIN ≤ 30VDC, IOUT = 500mA — 8.5 20

20VDC ≤ VIN ≤ 26VDC — 3.0 22

17.5VDC ≤ VIN ≤ 30VDC, IOUT = 1.0A, TJ = 25°C — 7.0 20

REGLOAD Load Regulation Note 2 mV

5.0mA ≤ IOUT ≤ 1.5A, TJ = 25°C — 1.8 25

5.0mA ≤ IOUT ≤ 1.0A — 1.5 25

250mA ≤ IOUT ≤ 750mA — 1.2 15

IBQuiescent Current — 3.5 6.0 mA

∆IBQuiescent Current Change 17.5VDC ≤ VIN ≤ 30VDC, IOUT = 500mA — — 0.8 mA

17.5VDC≤ VIN ≤ 30VDC, IOUT = 1.0A, TJ = 25°C — — 0.8

5.0mA ≤ IOUT ≤ 1.0A — — 0.5

RR Ripple Rejection 18.5VDC ≤ VIN ≤ 28.5VDC, f = 120Hz, IOUT = 500mA 60 80 — dB

VIN – VOUT Dropout Voltage IOUT = 1.0A, TJ = 25°C — 2.0 — VDC

VNOutput Noise Voltage TA = 25°C—10—µV/VOUT

10Hz ≤ f ≤ 10kHz

ROUT Output Resistance f = 1.0kHz — 1.2 — mΩ

ISC Short Circuit Current Limit TA = 25°C — 0.2 — A

VIN = 35VDC

IMAX Peak Output Current TJ = 25°C — 2.2 – A

TCVOUT Average Temperature

Coefficient of Output Voltage — –1.0 – mV/°C

NOTES: 1. TLOW = –40°C for TC78XXA, THIGH = +125°C for TC78XX

2. Load and line regulation are specified at constant junction temperature. Changes in VOUT due to heating effects must be taken into

account separately. Pulse testing with low duty cycle is used.

TC7800A Series

Three-Terminal Positive Voltage Regulators

TC7800/TC7800A-1 5/30/00

ELECTRICAL CHARACTERISTICS: (VIN = 33V, IOUT = 1.0A, TJ = TLOW to THIGH [Note 1], unless otherwise noted.)

Symbol Parameter Test Conditions Min Typ Max Units

TC7824A

VOUT Output Voltage TJ = 25°C 23.5 24 24.5 VDC

VOUT Output Voltage 5.0mA ≤ IOUT ≤ 0.1A, PD ≤ 15W 23.2 24 25.8 VDC

27.3VDC ≤ VIN ≤ 38VDC

REGLINE Line Regulation Note 2 mV

27VDC ≤ VIN ≤ 38VDC, IOUT = 500mA — 11.5 25

30VDC ≤ VIN ≤ 36VDC, IOUT = 1.0A — 3.8 28

30VDC ≤ VIN ≤ 36VDC, TJ = 25°C — 3.8 12

26.7VDC ≤ VIN ≤ 38VDC, IOUT = 1.0A, TJ = 25°C — 10 25

REGLOAD Load Regulation Note 2 mV

5.0mA ≤ IOUT ≤ 1.5A, TJ = 25°C — 2.1 15

5.0mA ≤ IOUT ≤ 1.0A — 2.0 25

250mA ≤ IOUT ≤ 750mA — 1.8 15

IBQuiescent Current — 3.6 6.0 mA

∆IBQuiescent Current Change 27.3VDC ≤ VIN ≤ 38VDC, IOUT = 500mA — — 0.8 mA

27VDC ≤ VIN ≤ 38VDC, TJ = 25°C — — 0.8

5.0mA ≤ IOUT ≤ 1.0A — — 0.5

RR Ripple Rejection 28VDC ≤ VIN ≤ 38VDC, f = 120Hz, IOUT = 500mA 45 54 — dB

VIN – VOUT Dropout Voltage IOUT = 1.0A, TJ = 25°C — 2.0 — VDC

VNOutput Noise Voltage TA = 25°C—10—µV/VOUT

10Hz ≤ f ≤ 100kHz

ROUT Output Resistance f = 1.0kHz — 1.4 — mΩ

ISC Short Circuit Current Limit T A = 25°C — 0.2 — A

VIN = 35VDC

IMAX Peak Output Current TJ = 25°C — 2.2 – A

TCVOUT Average Temperature

Coefficient of Output Voltage — –2.0 – mV/°C

NOTES: 1. TLOW = –40°C for TC78XXA, THIGH = +125°C for TC78XX

2. Load and line regulation are specified at constant junction temperature. Changes in VOUT due to heating effects must be taken into

account separately. Pulse testing with low duty cycle is used.

TC7800A Series

TC7800/TC7800A-1 5/30/00

Three-Terminal Positive Voltage Regulators

APPLICATIONS INFORMATION

Design Considerations

The TC7800A Series of fixed voltage regulators are de-

signed with Thermal Overload Protection that shuts down the

circuit when subjected to an excessive power overload condi-

tion, Internal Short Circuit Protection that limits the maximum

current the circuit will pass, and Output Transistor Safe–Area

Compensation that reduces the output short circuit current as

the voltage across the pass transistor is increased.

In many low current applications, compensation capaci-

tors are not required. However, it is recommended that the

regulator input be bypassed with a capacitor if the regulator

is connected to the power supply filter with long wire lengths,

or if the output load capacitance is large. An input bypass

capacitor should be selected to provide good high–fre-

quency characteristics to insure stable operation under all

load conditions. A 0.33µF or larger tantalum, mylar, or other

capacitor having low internal impedance at high frequencies

should be chosen. The bypass capacitor should be mounted

with the shortest possible leads directly across the regula-

tors input terminals. Normally good construction techniques

should be used to minimize ground loops and lead resis-

tance drops since the regulator has no external sense lead.

Input

0.33µFR

TC7805A

Constant

Current to

Grounded

Load

Figure 1. Current Regulator

The TC7800A regulators can also be used as a current

source when connected as above. In order to minimize

dissipation the TC7805A is chosen in this application.

Resistor R determines the current as follows:

IOUT = 5.0V = IB

IB ≅ 3.2mA over line and load charges.

For example, a 1.0A current source would require R to be a

5.0Ω, 10W resistor and the output voltage compliance

would be the input voltage less 7.0V.

Figure 2. Adjustable Output Regulator

Figure 3. Current Boost Regulator Figure 4. Short Circuit Protection

Input TC7805A Output

0.33µF

10k

TC901

1.0k

0.1µF

VO = 7.0V to 20V

VIN = VO ≥ 2.0V

The addition of an operational amplifier allows adjustment

to higher or intermediate values while retaining regulation

characteristics. The minimum voltage obtainable with this

arrangement is 2.0V greater than the regulator voltage.

XX = 2 digits of type number indicating voltage.

TC78XXA

MJ2955

or Equiv.

Output

2N6049

or Equiv.

≥ 10µF1.0µF

RSC

RSOURCE

Input 0.33µF

XX = 2 digits of type number indicating voltage.

TC78XXA

Input

Output

1.0µF 1.0µF

MJ2955

or Equiv.

≥ 10µF

RSOURCE

0.33µF

The circuit of Figure 3 can be modified to provide supply

protection against short circuits by adding a short circuit

sense resistor, RSC, and an additional PNP transistor.The

current sensing PNP must be able to handle the short circuit

current of the three–terminal regulator. Therefore, a four–

ampere plastic power transistor is specified.

The TC7800A series can be current boosted with a PNP

transistor. The MJ2955 provides current to 5.0A. Resistor R

in conjunction with the VBE of the PNP determines when the

pass transistor begins conducting; this circuitis not short

circuit proof. Input/output differential voltage minimum is

increased by VBE of the pass transistor.

TC7800A Series

Three-Terminal Positive Voltage Regulators

TC7800/TC7800A-1 5/30/00

Figure 5. Peak Output Current as a Function of

Input/Output Differential Voltage Figure 6. Ripple Rejection as a Function

of Output Voltages

Figure 7. Ripple Rejection as a Function

of Frequency Figure 8. Output Voltage as a Function of

Junction Temperature (TC7805A)

Figure 9. Output Impedance as a Function of

Output Voltage Figure 10. Quiescent Current as a Function

of Temperature

VIN - VOUT, INPUT/OUTPUT VOLTAGE DIFFERENTIAL (V)

f, FREQUENCY (kHz)

VOUT, OUTPUT VOLTAGE (V) TJ, JUNCTION TEMPERATURE (˚C)

TJ, JUNCTION TEMPERATURE (˚C)

VOUT, OUTPUT VOLTAGE (V)

3.0

2.0

1.5

1.0

04.0 8.0 12 20 30 40

4.0 6.0 8.0 10 12 14 16 18 20 22 24

RR, RIPPLE REJECTION (dB)

VOUT, OUTPUT VOLTAGE (V)

ZOUT, OUTPUT IMPEDANCE (mΩ)

IB, QUIESCENT CURRENT (mA)

0.1 100.01

5.0

4.9

-60 -20 20 60 100 140 180

5.0

3.0

2.0

1.0

0.5

0.3

0.2

0.14.0 8.0 12 16 20 24

6.0

4.0

3.0

2.0

1.0

0-75 -50 -25 0 25 50 75 100 125

2.5

0.5

4.8

6.0 10 15 25 35

TJ = 85˚C

f = 120Hz

IOUT = 20mA

∆VIN = 1.0V(RMS)

VIN = 20V

IOUT = 5.0mA

VIN = 10V

VOUT = 5.0V

IL = 20mA

PART# VIN

TC7805A = 10V

TC7812A = 19V

TC7815A = 23V

TC7824A = 33V

1.0

IOUT, OUTPUT CURRENT (A)

TJ = 125˚C

TJ = -40˚C

TJ = 0˚C

TJ = 25˚C

TC78XXA

VIN = 8.0V to 18V

IOUT = 500mA

f = 120Hz

TA = 25˚C

f = 120Hz

IO = 500mA

TA = 25˚C

CL = 0µF

TYPICAL CHARACTERISTICS

TC7800A Series

TC7800/TC7800A-1 5/30/00

Three-Terminal Positive Voltage Regulators

Figure 12. Input Output Differential as a Function

of Junction Temperature

TJ, JUNCTION TEMPERATURE (˚C)

L, LENGTH OF COPPER (mm)

0.5

0-75 -50 -25 0 25 50 75 100 125

IOUT = 1.0A

∆VOUT = 2% of VOUT

--- Extended Curve for TC78XXA

2.0

1.5

1.0

2.5

Figure 13. DDPAK Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

1.0

1.5

2.0

2.5

3.0

3.5

0 5.0 10 15 20 25 30

PD(MAX) for TA = 50˚C

Minimum

Size Pad

2.0 oz. Copper

Free Air

Mounted

Vertically

ΘJA

VIN - VOUT, INPUT-OUTPUT VOLTAGE

DIFFERENTIAL (V)

ΘJA, THERMAL RESISTANCE

JUNCTION-TO-AIR (˚C/W)

PD, MAXIMUM POWER DISSIPATION (W)

Figure 11. Worst Case Power Dissipation versus

Ambient Temperature (TO-220B)

8.0

4.0

-50 -25 0 25 50 75 100 125 150

TA, AMBIENT TEMPERATURE (˚C)

PD, POWER DISSIPATION (W)

No Heatsink

ΘHS = 15˚C/W

ΘHS = 5˚C/W

θJC = 5˚C/W

θJA = 65˚C/W

TJ(MAX) = 150˚C

ΘHS = 0˚C/W IOUT = 500mA

IOUT = 200mA

IOUT = 20mA

IOUT = 0mA

DEFINITIONS

Line Regulation – The change in output voltage for a

change in the input voltage. The measurement is made

under conditions of low dissipation or by using pulse tech-

niques such that the average chip temperature is not signifi-

cantly affected.

Load Regulation – The change in output voltage for a

change in the load current at constant chip temperature.

Maximum Power Dissipation – The maximum total

device dissipation for which the regulator will operate within

specifications.

Quiescent Current – That part of the input current that

is not delivered to the load.

Output Noise Voltage – The rms AC voltage at the

output, with constant load and no input ripple, measured

over a specified frequency range.

Long Term Stability – Output voltage stability under

accelerated life test conditions with the maximum rated

voltage listed in the devices’ electrical characteristics and

maximum power dissipation.

TC7800A Series

Three-Terminal Positive Voltage Regulators

TC7800/TC7800A-1 5/30/00

.120 (3.04)

.100 (2.54)

.405 (10.28)

.380 (9.66) .147 (3.73)

.142 (3.61)

.255 (6.47)

.235 (5.97)

.562 (14.27)

.500 (12.70) .060 (1.52)

.045 (1.15)

.155 (3.93)

.110 (2.80)

.190 (4.82)

.160 (4.07)

.055 (1.39)

.045 (1.15)

.620 (15.75)

.570 (14.48)

.025 (0.64)

018 (0 46)

.100 (2.54) BSC

3-Pin DDPAK-B

.036 (0.91)

.026 (0.66)

.368 (9.35)

.356 (9.04) .050 (1.27) REF.

.051 (1.30) REF.

.579 (14.71)

.539 (13.69)

.125 (3.18) MAX.

.403 (10.24)

.386 (9.80) .180 (4.57)

.170 (4.32)

.055 (1.40)

.045 (1.14)

.010 (0.25)

.000 (0.00)

.078 (1.98)

.058 (1.47)

5° REF.

.026 (0.66)

.018 (0.46)

PIN 1

3-Pin TO-220B

PACKAGE DIMENSIONS

TC7800A Series

TC7800/TC7800A-1 5/30/00

Three-Terminal Positive Voltage Regulators

Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by

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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-

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2001 Microchip Technology Incorporated. Printed in the USA. 1/01 Printed on recycled paper.

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3-18-20, Shinyokohama

Kohoku -K u, Yok ohama-shi

Kanaga wa, 222 -0 033 , 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

Tel: 82-2-554-7200 Fax: 82-2-558-5934

ASIA/PACIFIC (continued)

Singapore

Microchip Technology Singapore Pte Ltd.

200 Middle Road

#07-02 Prime Centre

Singapore, 188980

Tel: 65-334-8870 Fax: 65-334-8850

Taiwan

Microc hip Tech nolo gy Taiwan

11F-3, No. 207

Tung Hua North Road

Taipei, 105, Taiwan

Tel: 886-2-2717-7175 Fax: 886-2-2545-0139

EUROPE

Australia

Microchip Technolo gy Austra lia Pty Ltd

Suite 22, 41 Rawson Street

Epping 2121, NSW

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

France

Arizona Microchip Technology SARL

Parc díActivite 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

Arizona Microchip Technology GmbH

Gustav-Heinemann Ring 125

D-81739 Munich, Germany

Tel: 49-89-627-144 0 Fax: 49-89-627-144-44

Germany

Analog Product Sales

Lochhamer Strasse 13

D-82152 Martinsried, Germany

Tel: 49-89-895650-0 Fax: 49-89-895650-22

Italy

Arizona Microchip Technology SRL

Centro Direzionale Colleoni

Palazzo Taurus 1 V. Le Colleoni 1

20041 Agrate Brianza

Milan, Italy

Tel: 39-039-65791-1 Fax: 39-039-6899883

United Kingdom

Arizona Microchip Technology Ltd.

505 Eskdale Road

Winnersh Triangle

Wokingham

Berksh ire, Engla nd RG41 5TU

Tel: 44 1 18 921 5869 Fax: 44-118 921-5820

01/09/01

WORLDWIDE SALES AND SERVICE