TPS73719-Q1_15 Datasheet, PDF (1/22 Pages) Texas Instruments – 1-A LOW-DROPOUT REGULATOR WITH REVERSE CURRENT PROTECTION

TPS73719-Q1
TPS73733-Q1
www.ti.com ........................................................................................................................................................................................... SBVS123 – DECEMBER 2008
1-A LOW-DROPOUT REGULATOR
WITH REVERSE CURRENT PROTECTION
FEATURES
1
•2 Qualified for Automotive Applications
• Stable with 1.0-µF or Larger Ceramic Output
Capacitor
• Input Voltage Range: 2.2 V to 5.5 V
• Ultra-Low Dropout Voltage: 130 mV typ at 1 A
• Excellent Load Transient Response, Even With
Only 1.0-µF Output Capacitor
• NMOS Topology Delivers Low Reverse
Leakage Current
• 1.0% Initial Accuracy
• 3% Overall Accuracy Over Line, Load, and
Temperature
• Less Than 20-nA (Typ) Quiescent Current in
Shutdown Mode
• Thermal Shutdown and Current Limit for Fault
Protection
• Available in Multiple Output Voltage Versions
– Adjustable Output: 1.20 V to 5.5 V
– Custom Outputs Available Using Factory
Package-Level Programming
APPLICATIONS
• Point of Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
• Post-Regulation for Switching Supplies
• Portable/Battery-Powered Equipment
DESCRIPTION/ORDERING INFORMATION
The TPS737xx family of linear low-dropout (LDO) voltage regulators uses an NMOS pass element in a
voltage-follower configuration. This topology is relatively insensitive to output capacitor value and ESR, allowing
a wide variety of load configurations. Load transient response is excellent, even with a small 1.0-µF ceramic
output capacitor. The NMOS topology also allows very low dropout.
The TPS737xx family uses an advanced BiCMOS process to yield high precision while delivering very low
dropout voltages and low ground pin current. Current consumption, when not enabled, is under 20 nA and ideal
for portable applications. These devices are protected by thermal shutdown and foldback current limit.
Optional
V_IN
OFF
ON
IN
OUT
TPS737xx
EN GND FB
V_OUT
1.0 µF
DRB PACKAGE
(TOP VIEW)
OUT 1
NC 2
NR/FB 3
GND 4
8 IN
7 NC
6 NC
5 EN
Typical Application Circuit
NC – No internal connection
T_A
–40°C to 125°C
V_OUT (TYP)
3.3 V
1.9 V
Adjustable
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽²⁾
ORDERABLE PART NUMBER
TPS73733QDRBRQ1
SON – DRB
Reel of 3000 TPS73719QDRBRQ1
TPS73701QDRBRQ1
TOP-SIDE MARKING
733Q
719Q
PREVIEW
(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.
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.
All trademarks are the property of their respective owners.
2
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information 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 © 2008, Texas Instruments Incorporated