Datasheet

1
FEATURES
OUT
GND
IN
GND
KVU (TO-252) PACKAGE
(TOP VIEW)
KTT (TO-263) PACKAGE
(TOP VIEW)
OUT
GND
IN
GND
DESCRIPTION/ORDERING INFORMATION
TL720M05-Q1
www.ti.com .................................................................................................................................................. SGLS380A – SEPTEMBER 2008 – REVISED MAY 2009
LOW DROPOUT VOLTAGE REGULATOR
• Qualified for Automotive Applications • Very Low Dropout Voltage
• Output Voltage of 5 V ± 2% • Short-Circuit Protection
• Very Low Current Consumption • Reverse-Polarity Protection
• Power-On and Undervoltage Reset • ESD Protection >6 kV
The TL720M devices are monolithic integrated low dropout voltage regulators offered in 3-pin TO packages. An
input voltage up to 45 V is regulated to V
OUT
of 5 V with 2% tolerance. The devices can drive loads up to 450 mA
and are short-circuit proof. At overtemperature, the TL720M devices are turned off by the incorporated
temperature protection.
The input capacitor (C
IN
) compensates for line fluctuation. Using a resistor of approximately 1 Ω in series with C
IN
dampens the oscillation of input inductivity and input capacitance. The output capacitor (C
OUT
) stabilizes the
regulation circuit. Stability is specified at C
OUT
≥ 22 µ F and ESR ≤ 5 Ω , within the operating temperature range.
The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and
drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents
any oversaturation of the power element. The device also incorporates a number of internal circuits for protection
against:
• Overload
• Overtemperature
• Reverse polarity
ORDERING INFORMATION
(1)
ORDERABLE
T
A
V
O
NOM PACKAGE
(2)
TOP-SIDE MARKING
PART NUMBER
TO-252 (DPAK) – KVU Reel of 2500 TL720M05QKVURQ1 720M05Q
– 40 ° C to 125 ° C 5 V
T0-263 – KTT Reel of 500 TL720M05QKTTRQ1 T720M05Q
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com .
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging .
TERMINAL FUNCTIONS
NO. NAME DESCRIPTION
1 IN Input voltage. Connect to ground as close to device as possible, through a ceramic capacitor.
2 GND Ground. Internally connected to heatsink.
3 OUT Output. Connect to ground with ≥ 22- µ F capacitor, ESR < 5 Ω at 10 kHz.
1
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.
Copyright © 2008 – 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.