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TPS785-Q1_V03

更新时间： 2024-11-16 02:46:43
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德州仪器 - TI /
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43页 3043K
描述
TPS785-Q1 Automotive, 1-A, High-PSRR Low-Dropout Voltage Regulator With High Accuracy and Enable

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TPS785-Q1_V03 数据手册

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TPS785-Q1  
SBVS388B – JANUARY 2021 – REVISED JANUARY 2022  
TPS785-Q1 Automotive, 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 × 3.00 mm  
6.10 mm × 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.  
 
 
 
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