Ver: 0.2 Preliminary

Jun 28, 2004

TEL: 886-3-5788833

http://www.gmt.com.tw

2

G9225

Global Mixed-mode Technology Inc.

Absolute Maximum Ratings

(Note 1)

Input Voltage……………………….…….………..……..7V

Power Dissipation Internally Limited

(Note 2)

Maximum Junction Temperature.………….….……..150°C

Storage Temperature Range……....-65°C

Lead Temperature, Time for Wave Soldering

TO220 Package……….…….….……….….….260°C, 10s

TO220 No heatsink…….……….…………….…..…..1.5W

TO220 with infinite heatsink…………………….….…15W

Operating Conditions

(Note 1)

Input Voltage…………………………….………..2.5V~7V

Temperature Range………….….........-20°C

Electrical Characteristics

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNIT

Output Voltage

2.44

2.5

2.56

V

Line Regulation

---

0.5

2

%

Load Regulation

---

0.5

2

%

Quiescent Current

---

2.5

5

mA

Ripple Rejection

---

45

---

dB

Dropout Voltage

---

0.5

0.7

V

Short Circuit Current

---

1.2

---

A

Over Temperature

---

150

---

°C

Disable Voltage High

Output Active

2

---

---

V

Disable Voltage Low

Output Disabled

---

---

0.8

V

Disable Bias Current High

---

---

20

µA

Disable Bias Current Low

---

---

20

µA

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Con-

ditions are conditions under which the device functions but the specifications might not be guaranteed. For

guaranteed specifications and test conditions see the Electrical Characteristics.

resistance,

and IC will go into thermal shutdown. For the TO220 package,

Note3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

Note4: The type of output capacitor should be tantalum or aluminum.

Definitions

Dropout Voltage

The input/output Voltage differential at which the regu-

lator output no longer maintains regulation against fur-

ther reductions in input voltage. Measured when the

output drops 2% below its nominal value, dropout volt-

age is affected by junction temperature, load current

and minimum input supply requirements.

Line Regulation

The change in output voltage for a change in input

voltage. The measurement is made under conditions of

low dissipation or by using pulse techniques such that

average chip temperature is not significantly affected.

Load Regulation

The change in output voltage for a change in load

current at constant chip temperature. The measure-

ment is made under conditions of low dissipation or

by using pulse techniques such that average chip

temperature is not significantly affected.

Maximum Power Dissipation

The maximum total device dissipation for which the

regulator will operate within specifications.

Quiescent Bias Current

Current which is used to operate the regulator chip

and is not delivered to the load.