TPS76818-EP Datasheet, PDF (1/25 Pages) Texas Instruments – FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS

TPS76815ĆEP, TPS76818ĆEP, TPS76825ĆEP, TPS76827ĆEP
TPS76828ĆEP, TPS76830ĆEP TPS76833ĆEP, TPS76850ĆEP, TPS76801ĆEP
FASTĆTRANSIENTĆRESPONSE 1ĆA LOWĆDROPOUT VOLTAGE REGULATORS
SGLS011B − MARCH 2003 − REVISED DECEMBER 2008
FEATURES
D 1−A Low-Dropout Voltage Regulator
D Available in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V,
3.0-V, 3.3-V, 5.0-V Fixed Output and
SUPPORTS DEFENSE, AEROSPACE AND
MEDICAL APPLICATION
D Controlled Baseline
D One Assembly/Test Site
Adjustable Versions
D Dropout Voltage Down to 230 mV at 1 A
(TPS76850)
D Ultralow 85−µA Typical Quiescent Current
D Fast Transient Response
D 2% Tolerance Over Specified Conditions for
Fixed-Output Versions
D One Fabrication Site
D Available in Military (−555C/1255C)
Temperature Range^{
D Extended Product LIfe Cycle
D Extended Product−Change Notification
D Product Traceability
† _{Additional temperature ranges are available − contact factory.}
D Open Drain Power Good (See TPS767xx for
Power-On Reset With 200-ms Delay Option)
D 20-Pin TSSOP (PWP)PowerPAD Package
PWP PACKAGE
(TOP VIEW)
D Thermal Shutdown Protection
GND/HSINK 1 20 GND/HSINK
GND/HSINK 2 19 GND/HSINK
description
GND 3
18 NC
This device is designed to have a fast transient
response and be stable with 10-µF low ESR
capacitors. This combination provides high
performance at a reasonable cost.
NC 4
EN 5
IN 6
IN 7
NC 8
17 NC
16 PG
15 FB/NC
14 OUT
13 OUT
Because the PMOS device behaves as a low-value
GND/HSINK 9
12 GND/HSINK
resistor, the dropout voltage is very low (typically 230
mV at an output current of 1 A for the TPS76850) and
is directly proportional to the output current.
GND/HSINK ^{10 11} GND/HSINK
NC − No internal connection
Additionally, since the PMOS pass element is a
voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over
the full range of output current, 0 mA to 1 A). These two key specifications yield a significant improvement in
operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high
signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at T_J = 25°C.
Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery
indicator.
The TPS768xx is offered in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5.0-V fixed-voltage versions and
in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified
as a maximum of 2% over line, load, and temperature ranges. The TPS768xx family is available in a 20-pin PWP
package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2008, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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