SLVSAB1D – JUNE 2011 – REVISED JULY 2012
300-mA 40-V LOW-DROPOUT REGULATOR WITH ULTRALOW Iq
Check for Samples:
1
FEATURES
Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following
Results:
– Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C2
Low Dropout Voltage
– 300 mV at I
OUT
= 150 mA
4-V to 40-V Wide Input-Voltage Range
With up to 45-V Transients
300-mA Maximum Output Current
Ultralow Quiescent Current
– I
QUIESCENT
= 35 µA (Typ.) at Light Loads
– I
SLEEP
< 2 µA When EN = Low
Fixed (3.3-V and 5-V) and Adjustable (2.5-V to
7-V) Output Voltages
Integrated Watchdog With Fault/Flag
Stable With Low-ESR Ceramic Output
Capacitor
Integrated Power-On Reset
– Programmable Delay
– Open-Drain Reset Output
Integrated Fault Protection
– Short-Circuit/Overcurrent Protection
– Thermal Shutdown
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Low Input-Voltage Tracking
Thermally Enhanced 14-pin TSSOP - PWP
Package and 10-pin VSON - DRK Package
APPLICATIONS
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Infotainment Systems With Sleep Mode
Body Control Modules
Always-On Battery Applications
– Gateway Applications
– Remote Keyless Entry Systems
– Immobilizers
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DESCRIPTION
The TPS7A63xx-Q1 and TPS7A6401-Q1 are a family
of low-dropout linear voltage regulators designed for
low power consumption and quiescent current less
than 35 µA in light-load applications. These devices,
designed to achieve stable operation even with a low-
ESR ceramic output capacitor, feature an integrated
programmable window watchdog and overcurrent
protection. Designers can program the output voltage
using external resistors. A low-voltage tracking
feature allows for a smaller input capacitor and can
possibly eliminate the need of using a boost
converter during cold-crank conditions. The power-
on-reset delay is fixed (250 µs typical), or an external
capacitor can program the delay. Because of such
features, these devices are well-suited in power
supplies for various automotive applications.
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TYPICAL APPLICATION SCHEMATIC
V
IN
C
IN
VIN
TPS7A6333-Q1
VOUT
or
TPS7A6350-Q1
R
RST
TPS7A6x01-Q1
V
OUT
C
OUT
V
IN
C
IN
RDELAY
C
DLY
FB
R2
ROSC
VIN
VOUT
R1
R
RST
V
OUT
C
OUT
RDELAY
C
DLY
ROSC
R
OSC
GND
EN
nRST
RESET
R
FLT/FLAG
FAULT/
FLAG
R
OSC
GND
EN
nRST
R
FLT/FLAG
WD_FLT/
WD_FLG
nWD_EN WD
RESET
FAULT/
FLAG
WD_FLT/
WD_FLG
nWD_EN WD
Figure 1. Fixed Output Voltage Option
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Figure 2. Adjustable Output Voltage Option
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2012, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
