TPS784-Q1
TPS784-Q1
www.ti.com
SBVS387B – FEBRUARY 2020 – REVISED APRIL 2021
SBVS387B – FEBRUARY 2020 – REVISED APRIL 2021
TPS784-Q1 300-mA, 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: 1.65 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
50-dB PSRR out to 100 kHz
The TPS784-Q1 ultra low-dropout regulator (LDO)
is a small, low quiescent current LDO that can
source 300 mA with excellent line and load transient
performance.
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•
•
The low output noise and great PSRR performance
make the device suitable to power sensitive analog
loads. The TPS784-Q1 is a flexible device for post
regulation because this device supports an input
voltage range from 1.65 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.
•
•
•
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Low IQ: 25 µA (typical)
Ultra-low dropout:
– 115 mV (max) at 300 mA (3.3 VOUT
)
•
Internal 500-µs soft-start time to reduce inrush
current
Active output discharge
Functional Safety-Capable
– Documentation available to aid functional safety
system design
The TPS784-Q1 offers foldback current limit to reduce
power dissipation during over current condition. The
EN input helps with power sequencing requirements
of the system. The internal soft-start provides a
controlled startup reducing the inrush current allowing
for lower input capacitance to be used.
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Packages:
The TPS784-Q1 provides an active pulldown circuit to
quickly discharge output loads when disabled.
– 3-mm × 3-mm wettable flank VSON (8)
– 5-pin SOT-23
Device Information(1)
2 Applications
PART NUMBER
PACKAGE
BODY SIZE (NOM)
3.00 mm × 3.00 mm
2.90 mm × 1.60 mm
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•
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Automotive head units
Hybrid instrument clusters
Telematics control units
DC/DC converters
Wettable flank
VSON (8)(2)
TPS784-Q1
SOT-23 (5)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
(2) Preview package.
200
0.25
0.2
TJ
180
-55èC
-40èC
0èC
25èC
85èC
125èC
150èC
160
0.15
0.1
140
120
100
80
0.05
0
-0.05
60
-0.1
TJ
40
-55èC
-40èC
0èC
25èC
85èC
125èC
150èC
-0.15
-0.2
20
0
-0.25
0
0.03 0.06 0.09 0.12 0.15 0.18 0.21 0.24 0.27 0.3
Output Current (A)
0
0.03 0.06 0.09 0.12 0.15 0.18 0.21 0.24 0.27 0.3
Output Current (A)
Dropout vs IOUT for 5.0 V
Output Accuracy vs IOUT for 5.0 V
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: TPS784-Q1
Copyright © 2021 Texas Instruments Incorporated
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