TPS785-Q1
TPS785-Q1
www.ti.com
SBVS388A – JANUARY 2021 – REVISED APRIL 2021
SBVS388A – JANUARY 2021 – REVISED APRIL 2021
TPS785-Q1
1-A, High-PSRR Low-Dropout Voltage Regulator With High Accuracy and Enable
1 Features
3 Description
•
AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125°C, TA
Device junction temperature: –40°C to +150°C, TJ
Input voltage range: 1.7 V to 6.0 V
Available output voltages:
– Adjustable option: 1.2 V to 5.5 V
– Fixed options: 0.65 V to 5.0 V
Output accuracy: 0.5% typical, 1.7% maximum
Low IQ: 25 μA (typical)
The TPS785-Q1 ultra low-dropout regulator (LDO) is
a small, low quiescent current LDO that can source
1 A with excellent line and load transient performance.
•
•
•
The low output noise and great PSRR performance
make the device suitable to power-sensitive analog
loads. The TPS785-Q1 is a flexible device for post
regulation because this device supports an input
voltage range from 1.7 V to 6.0 V and offers an
adjustable output range of 1.2 V to 5.5 V. The device
also features fixed output voltages from 0.65 V to
5.0 V for powering common voltage rails.
•
•
•
Ultra-low dropout:
– 315 mV (max) at 1 A (3.3 VOUT
)
•
Internal 550 μs soft-start time to reduce inrush
current
Active output discharge
Packages:
– 3-mm × 3-mm wettable flank VSON (8)
– 5-pin TO-252, RθJA = 31.6°C/W
The TPS785-Q1 offers foldback current limit to reduce
power dissipation during a over current condition. The
EN input helps with power sequencing requirements
of the system. The internal soft-start provides a
controlled start up reducing the inrush current allowing
for lower input capacitance to be used.
•
•
2 Applications
The TPS785-Q1 provides an active pulldown circuit to
quickly discharge output loads when disabled.
•
•
•
•
•
Automotive head units
Hybrid instrument clusters
Telematics control units
Medium- and short-range radar
DC/DC converters
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
3.00 mm x 3.00 mm
6.10 mm x 6.60 mm
Wettable flank
VSON (8)
TPS785-Q1
TO-252 (5)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VIN
VOUT
IN
OUT
IN
OUT
CIN
COUT
COUT
DC/DC
Converter
TPS785-Q1
GND GND
EN
GND
GND
VEN
GND
GND
Typical Application Circuit
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
Product Folder Links: TPS785-Q1
Copyright © 2021 Texas Instruments Incorporated
Submit Document Feedback
1