TPS75325-Q1 REGULATORS Datasheet

TPS75325-Q1 Datasheet PDF, Equivalent


Part Number

TPS75325-Q1

Description

FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS

Manufacture

etcTI

Total Page 29 Pages
Datasheet
Download TPS75325-Q1 Datasheet


TPS75325-Q1
ą TPS75101ĆQ1, '75115ĆQ1, '75118ĆQ1, '75125ĆQ1, '75133ĆQ1 WITH POWER GOOD
TPS75301ĆQ1, TPS75315ĆQ1, TPS75318ĆQ1, TPS75325ĆQ1, TPS75333ĆQ1 WITH RESET
FASTĆTRANSIENTĆRESPONSE 1.5ĆA LOWĆDROPOUT VOLTAGE REGULATORS
SGLS159A − APRIL 2003 − REVISED APRIL 2008
D Qualified for Automotive Applications
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D 1.5-A Low-Dropout Voltage Regulator
D Available in 1.5-V, 1.8-V, 2.5-V, 3.3-V, Fixed
Output and Adjustable Versions
D Open Drain Power-Good (PG) Status
Output (TPS751xxQ)
D Open Drain Power-On Reset With 100-ms
Delay (TPS753xxQ)
D Dropout Voltage Typically 160 mV at 1.5 A
(TPS75133Q)
D Ultralow 75 µA Typical Quiescent Current
D Fast Transient Response
D 2% Tolerance Over Specified Conditions
For Fixed-Output Versions
D 20-Pin TSSOP (PWP) PowerPADPackage
D Thermal Shutdown Protection
GND/HEATSINK
NC
IN
IN
EN
PG or RESET
FB/SENSE
OUTPUT
OUTPUT
GND/HEATSINK
PWP PACKAGE
(TOP VIEW)
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
GND/HEATSINK
NC
NC
GND
NC
NC
NC
NC
NC
GND/HEATSINK
NC − No internal connection
PG is on the TPS751xx and RESET is on the TPS753xx
description
The TPS753xxQ and TPS751xxQ are low dropout regulators with integrated power-on reset and power-good (PG)
functions respectively. These devices are capable of supplying 1.5 A of output current with a dropout of 160 mV
(TPS75133Q, TPS75333Q). Quiescent current is 75 µA at full load and drops down to 1 µA when the device is
disabled. TPS751xxQ and TPS753xxQ are designed to have fast transient response for larger load current
changes.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 160 mV at an
output current of 1.5 A for the TPS75x33Q) 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 75 µA over the full range of output current, 1 mA to 1.5 A). These two key specifications yield a significant
improvement in operating life for battery-powered systems.
The device is enabled when EN is connected to a low level voltage. 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 TJ = 25°C.
For the TPS751xxQ, the power-good terminal (PG) is an active high, open drain output, which can be used to
implement a power-on reset or a low-battery indicator.
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
1

TPS75325-Q1
TPS75101ĆQ1, '75115ĆQ1, '75118ĆQ1, '75125ĆQ1, '75133ĆQ1 WITH POWER GOOD
TPS75301ĆQ1, TPS75315ĆQ1, TPS75318ĆQ1, TPS75325ĆQ1, TPS75333ĆQ1 WITH RESET
FASTĆTRANSIENTĆRESPONSE 1.5ĆA LOWĆDROPOUT VOLTAGE REGULATORS
SGLS159A − APRIL 2003 − REVISED APRIL 2008
ą
description (continued)
The RESET (SVS, POR, or power on reset) output of the TPS753xxQ initiates a reset in microcomputer and
microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS753xxQ
monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.
When the output reaches 95% of its regulated voltage, RESET goes to a high-impedance state after a 100-ms delay.
RESET goes to a logic-low state when the regulated output voltage is pulled below 95% (i.e., over load condition)
of its regulated voltage.
The TPS751xxQ or TPS753xxQ is offered in 1.5-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 V). Output voltage tolerance is specified as a
maximum of 2% over line, load, and temperature ranges. The TPS751xxQ and TPS753xxQ families are available
in 20-pin TSSOP (PWP) packages.
TPS75x33Q
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
300
250
TPS75x15Q
LOAD TRANSIENT RESPONSE
IL=1.5 A
50 CL=100 µF (Tantalum)
VO=1.5 V
0
200 IO = 1.5 A
−50
150 −100
100
IO = 0.5 A
50
−150
1.5
0
−40 10 60 110 160
TJ − Junction Temperature − °C
0
0 1 2 3 4 5 6 7 8 9 10
t − Time − ms
AVAILABLE OPTIONS†‡
TJ
−40°C to 125°C
OUTPUT VOLTAGE
(TYP)
3.3 V
2.5 V
1.8 V
1.5 V
Adjustable 1.5 V to 5 V
TSSOP (PWP)
PG RESET
TPS75133QPWPRQ1§ TPS75333QPWPRQ1
TPS75125QPWPRQ1§ TPS75325QPWPRQ1
TPS75118QPWPRQ1§ TPS75318QPWPRQ1
TPS75115QPWPRQ1§ TPS75315QPWPRQ1
TPS75101QPWPRQ1§ TPS75301QPWPRQ1
NOTE: The TPS75x01 is programmable using an external resistor divider (see application
information). R suffix indicates tape and reel.
For the most current package and ordering information, see the Package Option Addendum at the
end of this document, or see the TI web site at http://www.ti.com.
Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
§ Product preview
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features ą TPS75101ĆQ1, '75115ĆQ1, '75118ĆQ1, '75125ĆQ1, '75133ĆQ1 WITH POWER GOOD TPS75301ĆQ1, TPS75315ĆQ1, TPS75318Ć Q1, TPS75325ĆQ1, TPS75333ĆQ1 WITH RES ET FASTĆTRANSIENTĆRESPONSE 1.5ĆA LOW ĆDROPOUT VOLTAGE REGULATORS SGLS159A APRIL 2003 − REVISED APRIL 2008 D Qualified for Automotive Applications D ESD Protection Exceeds 2000 V Per MIL -STD-883, Method 3015; Exceeds 200 V Us ing Machine Model (C = 200 pF, R = 0) D 1.5-A Low-Dropout Voltage Regulator D Available in 1.5-V, 1.8-V, 2.5-V, 3.3-V , Fixed Output and Adjustable Versions D Open Drain Power-Good (PG) Status Out put (TPS751xxQ) D Open Drain Power-On R eset With 100-ms Delay (TPS753xxQ) D Dr opout Voltage Typically 160 mV at 1.5 A (TPS75133Q) D Ultralow 75 µA Typical Quiescent Current D Fast Transient Resp onse D 2% Tolerance Over Specified Cond itions For Fixed-Output Versions D 20-P in TSSOP (PWP) PowerPAD Package D Th ermal Shutdown Protection GND/HEATSINK NC IN IN EN PG or RESET† FB/SENSE OUTPUT OUTPUT GND/HEATSINK PWP PACKAGE (TOP VIEW).
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