TPS7415, TPS7418, TPS7425, TPS7430, TPS7433
FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR
200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 – DECEMBER 1999
D PACKAGE
(TOP VIEW)
Fast Transient Response Using Small
Output Capacitor (10 µF)
200-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.5-V, 3-V and 3.3-V
EN
NC
NC
IN
SENSE
OUT
GND
IN
1
2
3
4
8
7
6
5
Dropout Voltage Down to 170 mV at 200 mA
(TPS7433)
3% Tolerance Over Specified Conditions
8-Pin SOIC Package
NC – No internal connection
Thermal Shutdown Protection
description
This device is designed to have a fast transient response and be stable with 1-µF capacitors. This combination
provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 170 mV
at an output current of 200-mA for the TPS7433). This LDO family also features a sleep mode; applying a TTL
high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at
T = 25°C.
J
The TPS74xx is offered in 1.5-V, 1.8-V, 2.5-V, 3-V, and 3.3-V. Output voltage tolerance is specified as a
maximum of 3% over line, load, and temperature ranges. The TPS74xx family is available in 8 pin SOIC
package.
TPS7433
DROPOUT VOLTAGE
TPS7418
vs
LOAD TRANSIENT RESPONSE
JUNCTION TEMPERATURE
100
50
300
250
200
150
100
C
= 10 µF
O
V = 3.2 V
I
200 mA
25 µs
di/dt =
0
I
= 200 mA
O
–50
I
O
= 75 mA
200
0
I
= 50 mA
O
50
0
I
O
= 1 mA
–50 –25
0
25
50
75
100 125 150
0
100 200 300 400 500 600 700 800 900 1000
T
J
– Junction Temperature – °C
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 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
TI [ TEXAS INSTRUMENTS ]
