TPS75715, TPS75718, TPS75725, TPS75733 WITH POWER GOOD AND
TPS75701 FAST-TRANSIENT RESPONSE 3-A LOW-DROPOUT
VOLTAGE REGULATORS
SLVS306D – NOVEMBER 2000 – REVISED MAY 2002
D
3-A Low-Dropout Voltage Regulator
D
Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V
D
D
D
D
D
D
D
Fixed-Output and Adjustable Versions
Open Drain Power-Good (PG) Status
Output (Fixed Options Only)
Dropout Voltage Typically 150 mV at 3 A
(TPS75733)
Low 125
µA
Typical Quiescent Current
Fast Transient Response
3% Tolerance Over Specified Conditions for
Fixed-Output Versions
Available in 5-Pin TO–220 and TO–263
Surface-Mount Packages
Thermal Shutdown Protection
EN
IN
GND
OUTPUT
FB/PG
TO–220 (KC) PACKAGE
(TOP VIEW)
1
2
3
4
5
TO–263 (KTT) PACKAGE
(TOP VIEW)
EN
IN
GND
OUTPUT
FB/PG
1
2
3
4
5
description
The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators with
integrated power-good (PG) and an adjustable voltage option regulator. These devices are capable of supplying
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
vs
JUNCTION TEMPERATURE
250
IO = 3 A
VO = 3.3 V
VDO – Dropout Voltage – mV
200
∆
VO – Change in Output Voltage – mV
150
100
50
0
–50
TPS75715
LOAD TRANSIENT RESPONSE
VO = 1.5 V
Co = 100
µF
150
100
–100
di
+
0.75 A
µs
dt
4
2
0
–150
50
0
–40 –25 –10 5 20 35 50 65 80 95 110 125
TJ – Junction Temperature –
°C
0
20
40
60
80 100 120 140 160 180 200
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.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
I O – Output Current – A
1
TI [ TEXAS INSTRUMENTS ]
