TPS7B86-Q1
TPS7B86-Q1
www.ti.com
SBVS362A – JUNE 2020 – REVISED DECEMBER 2020
SBVS362A – JUNE 2020 – REVISED DECEMBER 2020
TPS7B86-Q1 500-mA, 40-V, Adjustable, Low-Dropout Regulator
With Power-Good
1 Features
3 Description
•
AEC-Q100 qualified for automotive applications:
The TPS7B86-Q1 is a low-dropout linear regulator
designed to connect to the battery in automotive
applications. The device has an input voltage range
extending to 40 V, which allows the device to
withstand transients (such as load dumps) that are
anticipated in automotive systems. With only a 17-µA
quiescent current at light loads, the device is an
optimal solution for powering always-on components
such as microcontrollers (MCUs) and controller area
network (CAN) transceivers in standby systems.
– Temperature grade 1: –40°C to +125°C, TA
– Junction temperature: –40°C to +150°C, TJ
Input voltage range: 3 V to 40 V (42 V max)
Output voltage range:
– Adjustable output 1.2 V to 18 V
– Fixed 3.3-V and 5-V output
Maximum output current: 500 mA
Output voltage accuracy: ±0.85% (max)
Low dropout voltage:
– 475 mV (max) at 450 mA (VOUT ≥ 3.3 V)
Low quiescent current:
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The device has state-of-the-art transient response
that allows the output to quickly react to changes in
load or line (for example, during cold-crank
conditions). Additionally, the device has a novel
architecture that minimizes output overshoot when
recovering from dropout. During normal operation, the
device has a tight DC accuracy of ±0.85% over line,
load, and temperature.
•
•
– 17 µA (typ) at light loads
– 5 µA (max) when disabled
Excellent line transient response:
– ±2% VOUT deviation during cold-crank
– ±2% VOUT deviation (1-V/µs VIN slew rate)
Power-good with programmable delay period
Stable with a 2.2-µF or larger capacitor
Package options:
The power-good delay can be adjusted by external
components, allowing the delay time to be configured
to fit application-specific systems.
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– 5-pin TO-252 package: 29.7°C/W RθJA
– 8-pin HSOIC-8 package with thermal pad:
41.8°C/W RθJA
The device is available in thermally conductive
packaging to allow the device components to
efficiently transfer heat to the circuit board.
Device Information (1)
2 Applications
PART NUMBER
PACKAGE
HSOIC (8)
TO-252 (5)
BODY SIZE (NOM)
4.89 mm × 3.90 mm
6.60 mm × 6.10 mm
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Reconfigurable instrument clusters
Body control modules (BCM)
Always-on battery-connected applications:
– Automotive gateways
TPS7B86-Q1
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
– Remote keyless entries (RKE)
45
40
35
30
25
20
15
10
5
0.25
VIN
VOUT
0.2
0.15
0.1
OUT
FB
IN
0.05
0
R1
R2
TPS7B86-Q1
(Adjustable)
EN
-0.05
-0.1
-0.15
-0.2
0
GND
0
500
1000
1500
Time (ms)
2000
2500
3000
Line Transient Response (3-V/µs VIN Slew Rate)
Adjustable Output Voltage
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: TPS7B86-Q1
Copyright © 2020 Texas Instruments Incorporated
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