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
D
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Open Drain Power-On Reset With 200-ms
Delay (TPS775xx)
Open Drain Power Good (TPS776xx)
500-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V
(TPS77628 Only), 3.3-V Fixed Output and
Adjustable Versions
Dropout Voltage to 169 mV (Typ) at 500 mA
(TPS77x33)
Ultra Low 85
µA
Typical Quiescent Current
Fast Transient Response
2% Tolerance Over Specified Conditions for
Fixed-Output Versions
8-Pin SOIC and 20-Pin TSSOP PowerPAD™
(PWP) Package
Thermal Shutdown Protection
PWP PACKAGE
(TOP VIEW)
GND/HSINK
GND/HSINK
GND
NC
EN
IN
IN
NC
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
NC – No internal connection
D PACKAGE
(TOP VIEW)
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.
TPS77x33
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
103
∆
VO – Change in
Output Voltage – mV
50
0
–50
GND
EN
IN
IN
1
2
3
4
8
7
6
5
RESET/PG
FB/NC
OUT
OUT
TPS77x33
LOAD TRANSIENT RESPONSE
CO = 2x47
µF
ESR = 1/2x100 mΩ
VO = 3.3 V
VI = 4.3 V
VDO – Dropout Voltage – mV
102
IO = 500 mA
101
100
IO = 10 mA
I O – Output Current – mA
80 100 120 140
500
0
10–1
CO = 10
µF
10–2
–60 –40 –20
0
20
40
IO = 0
60
TA – Free-Air 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.
PowerPAD is a trademark of 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.
Copyright
©
1999, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
1
TI [ TEXAS INSTRUMENTS ]
