Datasheet

TPS78825, TPS78833
SLVS382A – JUNE 2001 – REVISED JULY 2001
2
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AVAILABLE OPTIONS
T
J
VOLTAGE PACKAGE PART NUMBER SYMBOL
40°Cto125°C
2.5 V
SOT-23
TPS78825DBVT
†
TPS78825DBVR
‡
PGZI
–40°C to 125°C
3.3 V
SOT 23
(DBV)
TPS78833DBVT TPS78833DBVR PGTI
†
The DBVT indicates tape and reel of 250 parts.
‡
The DBVR indicates tape and reel of 3000 parts.
functional block diagram
OUT
IN
GND
EN
V
ref
Current Limit
/ Thermal
Protection
SR
150 k
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO.
I/O
DESCRIPTION
EN 3 I Active low enable
GND 2 Regulator ground
IN 1 I The IN terminal is the input to the device.
OUT 5 O The OUT terminal is the regulated output of the device.
SR 4 I The SR terminal is used to control the in-rush current.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
§
Input voltage range    –0.3 V to 13.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at EN –0.3 V to V
I
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage on OUT 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak output current Internally limited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD rating, HBM 2 kV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, T
J
–40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating ambient temperature range, T
A
–40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
§
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.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
BOARD
PACKAGE R
θJC
R
θJA
DERATING FACTOR
ABOVE T
A
= 25°C
T
A
≤ 25°C
POWER RATING
T
A
= 70°C
POWER RATING
T
A
= 85°C
POWER RATING
Low K
¶
DBV 65.8°C/W 259°C/W 3.9 mW/°C 386 mW 212 mW 154 mW
High K
#
DBV 65.8°C/W 180°C/W 5.6 mW/°C 555 mW 305 mW 222 mW
¶
The JEDEC 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.
#
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.