The TPS752xxQ and TPS754xxQ are low dropout regulators with integrated power-on reset and power good
(PG) functions respectively . These devices are capable of supplying 2 A of output current with a dropout of 210
mV (TPS75233Q, TPS75433Q). Quiescent current is 75 µA at full load and drops down to 1 µA when the device
is disabled. TPS752xxQ and TPS754xxQ are designed to have fast transient response for larger load current
changes.
TPS75x33Q
300
250
200
150
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
IO = 2 A
IO = 1.5 A
50
0
– Change in∆
O
V
–50
Output Voltage – mV
–100
LOAD TRANSIENT RESPONSE
TPS75x33Q
IL=2 A
CL=100 µF (T antalum)
VO=3.3 V
100
– Dropout Voltage – mV
DO
V
50
0
–401011060
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.
IO = 0.5 A
TJ – Junction Temperature – °C
–150
2
1
O
I – Output Current – A
160
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
0
321457689100
t – Time – ms
Copyright 2000, Texas Instruments Incorporated
1
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
T
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS242 – MARCH 2000
description (continued)
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 210 mV
at an output current of 2 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 2 A). These two key specifications
yield a significant improvement in operating life for battery-powered systems.
The device is enabled when the EN
pin is connected to a low-level input 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 1 µA at TJ = 25°C.
The RESET (SVS, POR, or power on reset) output of the TPS752xxQ initiates a reset in microcomputer and
microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS752xxQ
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 TPS754xxQ has a power good terminal (PG) as an active high, open drain output, which can be used to
implement a power-on reset or a low-battery indicator.
The TPS752xxQ or the TPS754xxQ are 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 TPS752xxQ and the TPS754xxQ families are
available in 20 pin TSSOP (PWP) packages.
AVAILABLE OPTIONS
J
–40°C to 125°C
The TPS75x01 is programmable using an external resistor divider (see application
information). The PWP package is available taped and reeled. Add an R suffix to the device
type (e.g., TPS75201QPWPR) to indicate tape and reel.
OUTPUT VOLTAGE
(TYP)
3.3 VTPS75233QPWPTPS75433QPWP
2.5 VTPS75225QPWPTPS75425QPWP
1.8 VTPS75218QPWPTPS75418QPWP
1.5 VTPS75215QPWPTPS75415QPWP
Adjustable 1.5 V to 5 VTPS75201QPWPTPS75401QPWP
TSSOP (PWP)
RESETPG
V
I
0.22 µF
†
See application information section for capacitor selection details.
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
functional block diagram—adjustable version
IN
EN
_
SLVS242 – MARCH 2000
PG or RESET
+
V
= 1.1834 V
ref
+
_
GND
100 ms Delay
(for RESET
Option)
functional block diagram—fixed-voltage version
IN
EN
_
+
OUT
R1
FB
R2
External to the device
PG or RESET
OUT
V
= 1.1834 V
ref
+
_
GND
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
100 ms Delay
(for RESET
Option)
SENSE
R1
R2
3
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
I/O
DESCRIPTION
I/O
DESCRIPTION
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS242 – MARCH 2000
Terminal Functions (TPS752xxQ)
TERMINAL
NAMENO.
EN5IEnable Input
FB/SENSE7IFeedback input voltage for adjustable device (sense input for fixed-voltage option)
GND17Regulator ground
GND/HEATSINK1, 10, 11, 20Ground/heatsink
IN3, 4IInput voltage
NC2, 12, 13, 14,
15, 16, 18, 19
OUTPUT8, 9ORegulated output voltage
RESET6OReset output
TERMINAL
NAMENO.
EN5IEnable Input
FB/SENSE7IFeedback input voltage for adjustable device (sense input for fixed-voltage option)
GND17Regulator ground
GND/HEATSINK1, 10, 11, 20Ground/heatsink
IN3, 4IInput voltage
NC2, 12, 13, 14,
15, 16, 18, 19
OUTPUT8, 9ORegulated output voltage
PG6OPower good output
No connection
Terminal Functions (TPS754xxQ)
No connection
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
TPS752xxQ RESET timing diagram
V
I
SLVS242 – MARCH 2000
(see Note A)
Threshold
NOTES: A. V
B. VIT –Trip voltage is typically 5% lower than the output voltage (95%VO) V
V
res
V
O
Voltage
RESET
Output
Output
Undefined
is the minimum input voltage for a valid RESET
res
for semiconductor symbology.
V
(see Note B)
IT+
V
IT–
100 ms
Delay
(see Note B)
V
IT+
Less than 5% of the
output voltage
. The symbol V
V
res
t
(see Note B)
V
(see Note B)
IT–
t
100 ms
Delay
Output
Undefined
t
is not currently listed within EIA or JEDEC standards
res
to V
IT–
is the hysteresis voltage.
IT+
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS242 – MARCH 2000
TPS754xxQ PG timing diagram
V
I
V
(see Note A)
NOTES: A. VPG is the minimum input voltage for a valid PG. The symbol VPG is not currently listed within EIA or JEDEC standards for
B. VIT –Trip voltage is typically 17% lower than the output voltage (83%VO) V
PG
V
O
Threshold
Voltage
PG
Output
Output
Undefined
semiconductor symbology .
V
(see Note B)
IT+
V
(see Note B)
IT–
V
(see Note B)
IT+
V
(see Note B)
IT–
to V
IT–
is the hysteresis voltage.
IT+
V
PG
t
t
Output
Undefined
t
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PWP
§
PWP
¶
TPS75201Q, TPS75215Q, TPS75218Q, TPS75225Q, TPS75233Q WITH RESET
TPS75401Q, TPS75415Q, TPS75418Q, TPS75425Q, TPS75433Q WITH POWER GOOD
FAST-TRANSIENT-RESPONSE 2-A LOW-DROPOUT VOLTAGE REGULATORS
SLVS242 – MARCH 2000
absolute maximum ratings over operating junction temperature range
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.
‡
All voltage values are with respect to network terminal ground.
PACKAGE
§
This parameter is measured with the recommended copper heat sink pattern on a 1-layer PCB, 5-in × 5-in PCB, 1 oz. copper, 2-in × 2-in coverage
(4 in2).
¶
This parameter is measured with the recommended copper heat sink pattern on a 8-layer PCB, 1.5-in × 2-in PCB, 1 oz. copper with layers 1,
2, 4, 5, 7, and 8 at 5% coverage (0.9 in2) and layers 3 and 6 at 100% coverage (6 in2). For more information, refer to TI technical brief SLMA002.