TPS77501, TPS77515, TPS77518, TPS77525, TPS77533 WITH RESET OUTPUT
TPS77601, TPS77615, TPS77618, TPS77625, TPS77628, TPS77633 WITH PG OUTPUT
FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS232B – SEPTEMBER 1999 – REVISED NOVEMBER 1999
PWP PACKAGE
(TOP VIEW)
Open Drain Power-On Reset With 200-ms
Delay (TPS775xx)
Open Drain Power Good (TPS776xx)
500-mA Low-Dropout Voltage Regulator
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND/HSINK
GND/HSINK
GND/HSINK
NC
GND/HSINK
GND
Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V
(TPS77628 Only), 3.3-V Fixed Output and
Adjustable Versions
NC
NC
EN
RESET/PG
FB/NC
IN
IN
Dropout Voltage to 169 mV (Typ) at 500 mA
(TPS77x33)
OUT
NC
OUT
Ultra Low 85 µA Typical Quiescent Current
GND/HSINK
GND/HSINK
GND/HSINK
GND/HSINK
Fast Transient Response
2% Tolerance Over Specified Conditions for
Fixed-Output Versions
NC – No internal connection
8-Pin SOIC and 20-Pin TSSOP PowerPAD
(PWP) Package
D PACKAGE
(TOP VIEW)
Thermal Shutdown Protection
GND
EN
IN
RESET/PG
FB/NC
OUT
1
2
3
4
8
7
6
5
description
The TPS775xx and TPS776xx 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.
IN
OUT
TPS77x33
DROPOUT VOLTAGE
vs
TPS77x33
LOAD TRANSIENT RESPONSE
FREE-AIR TEMPERATURE
3
2
1
0
10
10
10
10
C
= 2x47 µF
O
ESR = 1/2x100 mΩ
= 3.3 V
50
0
V
O
V = 4.3 V
I
I
= 500 mA
O
–50
I
O
= 10 mA
500
0
–1
10
10
I
= 0
O
C
= 10 µF
O
–2
–60 –40 –20
T
0
20 40 60 80 100 120 140
0
20 40 60 80 100 120 140 160 180 200
– Free-Air Temperature – °C
t – Time – µs
A
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 Incorporated.
Copyright 1999, 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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265