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www.ti.com
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SLVS230G − SEPTEMBER 1999 − REVISED JANUARY 2004
PWP PACKAGE
(TOP VIEW)
D
Open Drain Power-On Reset With 200 ms
Delay (TPS777xx)
D
D
D
D
D
D
D
Open Drain Power Good (TPS778xx)
750-mA Low-Dropout Voltage Regulator
GND/HSINK
GND/HSINK
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND/HSINK
GND/HSINK
NC
NC
RESET/PG
FB/NC
OUT
OUT
GND/HSINK
GND/HSINK
GND
NC
EN
IN
IN
Available in 1.5-V, 1.8-V, 2.5-V, 3.3-V Fixed
Output and Adjustable Versions
Dropout Voltage to 260 mV (Typ) at 750 mA
(TPS77x33)
NC
GND/HSINK
GND/HSINK
Ultralow 85 mA Typical Quiescent Current
Fast Transient Response
2% Tolerance Over Specified Conditions for
Fixed-Output Versions
NC − No internal connection
D
D
8-Pin SOIC and 20-Pin TSSOP PowerPAD
(PWP) Package
D PACKAGE
(TOP VIEW)
Thermal Shutdown Protection
GND
EN
IN
RESET/PG
1
2
3
4
8
7
6
5
description
FB/NC
OUT
TPS777xx and TPS778xx are designed to have a
IN
OUT
fast transient response and be stable with a 10 µF
low ESR capacitor. This combination provides
high performance at a reasonable cost.
TPS77x33
DROPOUT VOLTAGE
vs
TPS77x33
FREE-AIR TEMPERATURE
LOAD TRANSIENT RESPONSE
3
2
1
0
10
10
10
10
C
= 2x47 µF
o
ESR = 1/2x100 mΩ
= 3.3 V
50
0
V
O
I
= 750 mA
O
V = 4.3 V
I
−50
1000
500
0
I
O
= 10 mA
−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.
All trademarks are the property of their respective owners.
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ꢤ ꢠꢞ ꢟꢠ ꢡ ꢙ ꢍ ꢠ ꢣ ꢧꢦ ꢤ ꢌ ꢟꢌ ꢤ ꢢ ꢍ ꢌꢠ ꢞꢣ ꢧ ꢦꢡ ꢍꢎ ꢦ ꢍꢦ ꢡ ꢙꢣ ꢠꢟ ꢀꢦꢬ ꢢ ꢣ ꢘꢞꢣ ꢍꢡ ꢥꢙ ꢦꢞꢍ ꢣ ꢣꢍ ꢢꢞ ꢪꢢꢡ ꢪ ꢋ ꢢꢡ ꢡ ꢢ ꢞꢍꢭꢫ
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Copyright 1999 − 2004, Texas Instruments Incorporated
1
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