TPS79201, TPS79225

TPS79228, TPS79230

SLVS337B – MARCH 2001 – REVISED MAY 2002

www.ti.com

2

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

ORDERING INFORMATION

TJ

VOLTAGE

PACKAGE

PART NUMBER

SYMBOL

1.2 to 5.5 V

TPS79201DBVT(1)

TPS79201DBVR(2)

PEVI

40

°Cto125°C

2.5 V

SOT23

TPS79225DBVT(1)

TPS79225DBVR(2)

PEXI

–40

°C to 125°C

2.8 V

SOT23

(DBV)

TPS79228DBVT(1)

TPS79228DBVR(2)

PEWI

3 V

TPS79230DBVT(1)

TPS79230DBVR(2)

PEYI

(1) The DBVT indicates tape and reel of 250 parts.

(2) The DBVR indicates tape and reel of 3000 parts.

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range (unless otherwise noted)(1)

TPS79201,TPS79225

TPS79228,TPS79230

Input voltage range (2)

– 0.3 V to 6 V

Voltage range at EN

–0.3 V to VI + 0.3 V

Voltage on OUT

– 0.3 V to 6 V

Peak output current

Internallylimited

ESD rating, HBM

2 kV

ESD rating, CDM

500 V

Continuous total power dissipation

See Dissipation Rating Table

Operating virtual junction temperature range, TJ

– 40

°C to 150°C

Operating ambient temperature range, TA

– 40

°C to 85°C

Storage temperature range, Tstg

– 65

°C to 150°C

(1) Stresses beyond 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 beyond those indicated under “recommended operating conditions” is

not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2) All voltage values are with respect to network ground terminal.

PACKAGE DISSIPATION RATING

BOARD

PACKAGE

R

θJC

R

θJA

DERATING FACTOR

ABOVE TA = 25°C

TA ≤ 25°C

POWER RATING

TA = 70°C

POWER RATING

TA = 85°C

POWER RATING

Low K(1)

DBV

63.75

°C/W

256

°C/W

3.906 mW/

°C

391 mW

215 mW

156 mW

High K(2)

DBV

63.75

°C/W

178.3

°C/W

5.609 mW/

°C

561 mW

308 mW

224 mW

(1) TheJEDEC low K (1s) board design used to derive this data was a 3-inch x 3-inch, two layer board with 2 ounce copper traces on top of the board.

(2) The JEDEC high K (2s2p) board design used to derive this data was a 3-inch x 3-inch, multilayer board with 1 ounce internal power and ground

planes and 2 ounce copper traces on top and bottom of the board.

RECOMMENDED OPERATING CONDITIONS

MIN

NOM

MAX

UNIT

Input voltage, VI (1)

2.7

5.5

V

Continuous output current, IO (2)

0

100

mA

Operating junction temperature, TJ

–40

125

°C

(1) To calculate the minimum input voltage for your maximum output current, use the following formula:

VI(min) = VO(max) + VDO (max load)

(2) Continuous output current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the

device operate under conditions beyond those specified in this table for extended periods of time.