TPS77501-EP_16 Datasheet, PDF (1/26 Pages) Texas Instruments – FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS

TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP
TPS77525-EP, TPS77533-EP WITH RESET OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
SGLS010B − MARCH 2003 − REVISED JUNE 2010
D Controlled Baseline
− One Assembly/Test Site, One Fabrication
Site
D Extended Temperature Performance of
−55°C to 125°C
D Enhanced Diminishing Manufacturing
Sources (DMS) Support
D Enhanced Product Change Notification
D Qualification Pedigree^†
D Open Drain Power-On Reset With 200-ms
Delay
D 500-mA Low-Dropout Voltage Regulator
D Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V, 3.3-V
Fixed Output and Adjustable Versions
D Dropout Voltage to 169 mV (Typ) at 500 mA
(TPS77533)
† _{Component qualification in accordance with JEDEC and industry}
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification
testing should not be viewed as justifying use of this component
beyond specified performance and environmental limits.
D Ultralow 85 μA Typical Quiescent Current
D Fast Transient Response
D 2% Tolerance Over Specified Conditions for
Fixed-Output Versions
D 20-Pin TSSOP PowerPAD™ (PWP) Package
D Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
GND/HSINK 1
GND/HSINK 2
GND 3
NC 4
EN 5
IN 6
IN 7
NC 8
GND/HSINK 9
GND/HSINK ¹⁰
20 GND/HSINK
19 GND/HSINK
18 NC
17 NC
16 RESET
15 FB/NC
14 OUT
13 OUT
12 GND/HSINK
11 _GND/HSINK
NC − No internal connection
description
The TPS775xx devices are designed to have a fast transient response and be stable with a 10-μF low ESR
capacitors. This combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 169 mV at an
output current of 500 mA for the TPS77533) and is directly proportional to the output current. 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 500 mA). 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 1 μA at T_J = 25°C.
The RESET output of the TPS775xx initiates a reset in microcomputer and microprocessor systems in the event
of an undervoltage condition. An internal comparator in the TPS775xx monitors the output voltage of the regulator
to detect an undervoltage condition on the regulated output voltage.
The TPS775xx is offered in 1.5-V, 1.6-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5 V to 5.5 V for TPS77501 option. Output voltage tolerance is specified as a
maximum of 2% over line, load, and temperature ranges. The TPS775xx family is available in 20 pin TSSOP
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 © 2010, Texas Instruments Incorporated
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