TPS75715, TPS75718, TPS75725, TPS75733 WITH POWER GOOD AND
TPS75701 FAST-TRANSIENT RESPONSE 3-A LOW-DROPOUT
VOLTAGE REGULATORS
SLVS306D – NOVEMBER 2000 – REVISED MAY 2002
TO–220 (KC) PACKAGE
D
D
D
D
D
D
D
D
D
3-A Low-Dropout Voltage Regulator
(TOP VIEW)
Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V
Fixed-Output and Adjustable Versions
EN
IN
GND
1
2
3
4
5
Open Drain Power-Good (PG) Status
Output (Fixed Options Only)
OUTPUT
FB/PG
Dropout Voltage Typically 150 mV at 3 A
(TPS75733)
TO–263 (KTT) PACKAGE
(TOP VIEW)
Low 125 µA Typical Quiescent Current
Fast Transient Response
1
2
EN
IN
3% Tolerance Over Specified Conditions for
Fixed-Output Versions
3
4
5
GND
OUTPUT
FB/PG
Available in 5-Pin TO–220 and TO–263
Surface-Mount Packages
Thermal Shutdown Protection
description
The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators with
integratedpower-good(PG)andanadjustablevoltageoptionregulator. Thesedevicesarecapableofsupplying
3 A of output current with a dropout of 150 mV (TPS75733). Therefore, the device is capable of performing a
3.3-V to 2.5-V conversion. Quiescent current is 125 µA at full load and drops down to less than 1 µA when the
device is disabled. The TPS757xx is designed to have fast transient response for large load current changes.
TPS75733
DROPOUT VOLTAGE
TPS75715
vs
JUNCTION TEMPERATURE
LOAD TRANSIENT RESPONSE
250
200
150
100
50
150
100
I
V
= 3 A
O
V
C
= 1.5 V
= 100 µF
O
o
= 3.3 V
O
50
0
–50
–100
–150
di
dt
0.75 A
µs
+
4
2
0
0
–40 –25 –10
5
20 35 50 65 80 95 110 125
0
20 40 60 80 100 120 140 160 180 200
T
J
– Junction Temperature – °C
t – Time – µs
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.
Copyright 2001, Texas Instruments Incorporated
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.
1
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