文档介绍：TPS77701, TPS77715, TPS77718, TPS77725, TPS77733 with RESET OUTPUT
TPS77801, TPS77815, TPS77818, TPS77825, TPS77833 with PG OUTPUT
TĆTRANSIENTĆRESPONSE 750ĆmA LOWĆDROPOUT LINEAR REGULATORS
SLVS230G − SEPTEMBER 1999 − REVISED JANUARY 2004
D Open Drain Power-On Reset With 200 ms PWP PACKAGE
Delay (TPS777xx) (TOP VIEW)
D
Open Drain Power Good (TPS778xx) GND/HSINK 1 20 GND/HSINK
D 750-mA Low-Dropout Voltage Regulator GND/HSINK 2 19 GND/HSINK
D Available in -V, -V, -V, -V Fixed GND 3 18 NC
Output and Adjustable Versions NC 4 17 NC
D EN 5 16 RESET/PG
Dropout Voltage to 260 mV (Typ) at 750 mA IN 6 15 FB/NC
(TPS77x33) IN 7 14 OUT
D Ultralow 85 mA Typical Quiescent Current NC 8 13 OUT
D Fast Transient Response GND/HSINK 9 12 GND/HSINK
GND/HSINK 10 11 GND/HSINK
D 2% Tolerance Over Specified Conditions for
Fixed-Output Versions NC − No internal connection
D 8-Pin SOIC and 20-Pin TSSOP PowerPAD
(PWP) Package D PACKAGE
(TOP VIEW)
D Thermal Shutdown Protection
GND 1 8 RESET/PG
description
EN 2 7 FB/NC
TPS777xx and TPS778xx are designed to have a IN 3 6 OUT
fast transient response and be stable with a 10 µF IN 4 5 OUT
low ESR capacitor. bination provides
high performance at a reasonable cost.
TPS77x33
DROPOUT VOLTAGE
vs TPS77x33
FREE-AIR TEMPERATURE LOAD TRANSIENT RESPONSE
103
Co = 2x47 µF
Ω
50 ESR = 1/2x100 m
VO = V
2 I = 750 mA
10 O VI = V
0
− Change in
O
V −50
101 ∆
Output Voltage − mV Output Voltage
1000
IO = 10 mA
100
500
− Dropout Voltage − mV − Dropout Voltage
DO 0
V 10−1
IO = 0
Co = 10 µF
O
10−2 I − Output Current mA
−60−40−20 0 20 40 60 80 100 120 140 0 2040 60 80 100120 140 160 180 200
TA − Free-Air Temperature −°C t − Time −µs
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