TPS7415_16 Datasheet, PDF (1/19 Pages) Texas Instruments – FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR 200-mA LOW-DROPOUT VOLTAGE REGULATORS

TPS7430: Not Recommended For New Designs
TPS7415, TPS7418, TPS7425, TPS7430, TPS7433
FAST-TRANSIENT-RESPONSE USING SMALL OUTPUT CAPACITOR
200-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS212 – DECEMBER 1999
D Fast Transient Response Using Small
Output Capacitor (10 µF)
D 200-mA Low-Dropout Voltage Regulator
D Available in 1.5-V, 1.8-V, 2.5-V, 3-V and 3.3-V
D Dropout Voltage Down to 170 mV at 200 mA
(TPS7433)
D 3% Tolerance Over Specified Conditions
D 8-Pin SOIC Package
D Thermal Shutdown Protection
D PACKAGE
(TOP VIEW)
EN 1
NC 2
NC 3
IN 4
8 SENSE
7 OUT
6 GND
5 IN
NC – No internal connection
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_J = 25°C.
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
vs
JUNCTION TEMPERATURE
300
VI = 3.2 V
250
IO = 200 mA
200
TPS7418
LOAD TRANSIENT RESPONSE
100
50
di/dt =
200 mA
25 µs
CO = 10 µF
0
–50
150
100
IO = 75 mA
IO = 50 mA
50
IO = 1 mA
0
–50 –25 0 25 50 75 100 125 150
TJ – Junction Temperature – °C
200
0
0 100 200 300 400 500 600 700 800 900 1000
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.
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.
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Copyright © 1999, Texas Instruments Incorporated
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