Linear Regulator. TPS76801-Q1 Datasheet

TPS76801-Q1 Regulator. Datasheet pdf. Equivalent

TPS76801-Q1 Datasheet
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Part TPS76801-Q1
Description 1-A Low-Dropout Linear Regulator
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TPS768-Q1
SGLS155B – FEBRUARY 2003 – REVISED NOVEMBER 2016
TPS768xx-Q1 Fast-Transient-Response 1-A Low-Dropout Voltage Regulators
1 Features
1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• 1-A Low-Dropout (LDO) Voltage Regulator
• Available in 1.8-V, 2.5-V, 3.3-V, and 5-V Fixed-
Output and an Adjustable Version
• Dropout Voltage Down to 230 mV at 1 A
(TPS76850-Q1)
• Ultralow 85-μA Typical Quiescent Current
• Fast Transient Response
• 2% Tolerance Over Specified Conditions for
Fixed-Output Versions
• Open-Drain Power Good (See TPS767xx-Q1 for
Power-On Reset With 200-ms Delay Option)
• 20-Pin TSSOP (PWP) Package
• Thermal Shutdown Protection
2 Applications
• Automotive
• Power Train
• Cluster
• ADAS
3 Description
This device is designed to have a fast transient
response and be stable with 10 μF capacitors. This
combination provides high performance at a
reasonable cost.
Because the PMOS device behaves as a low-value
resistor, the dropout voltage is very low (typically
230 mV at an output current of 1 A for the TPS76850-
Q1) and is directly proportional to the output current.
Additionally, because the PMOS pass element is a
voltage-driven device, the quiescent current is very
low and independent of output loading (typically
85 μA over the full range of output current, 0 mA to
1 A). These two key specifications yield a significant
improvement in operating life for battery-powered
systems. This LDO family also features a shutdown
mode; applying a TTL high signal to the enable (EN)
input shuts down the regulator, reducing the
quiescent current to less than 1 μA at TJ = 25°C.
Power good (PG) is an active-high output, which can
be used to implement a power-on reset or a low-
battery indicator.
The TPS768xx-Q1 is offered in 1.8-V, 2.5-V, 3.3-V,
and 5-V fixed-voltage versions and in an adjustable
version (programmable over the range of 1.2 V to 5.5
V). Output voltage tolerance is specified as a
maximum of 2% over line, load, and temperature
ranges. The TPS768xx-Q1 family is available in a 20-
pin PWP package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS768xx-Q1
HTSSOP (20)
6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VI
C1
0.1 mF
Typical Application Circuit
TPS768xx-Q1
6
IN
PG 16
7 IN
5
EN
OUT 14
13
OUT
+
GND
3
PG
250 kW
VO
Co
10 mF
Load Transient Response
100
Co = 10 mF
50
TA = 25°C
0
−50
−100
1
0.5
0
Copyright © 2016, Texas Instruments Incorporated
0 100 200 300 400 500 600 700 800 900 1000
t − Time − ms
1
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.



etcTI TPS76801-Q1
TPS768-Q1
SGLS155B – FEBRUARY 2003 – REVISED NOVEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ..................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Parameter Measurement Information .................. 9
8 Detailed Description ............................................ 10
8.1 Overview ................................................................. 10
8.2 Functional Block Diagrams ..................................... 10
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 11
9 Application and Implementation ........................ 13
9.1 Application Information............................................ 13
9.2 Typical Application ................................................. 13
10 Power Supply Recommendations ..................... 15
11 Layout................................................................... 15
11.1 Layout Guidelines ................................................. 15
11.2 Layout Example .................................................... 16
11.3 Power Dissipation and Junction Temperature ...... 16
12 Device and Documentation Support ................. 17
12.1 Receiving Notification of Documentation Updates 17
12.2 Community Resources.......................................... 17
12.3 Trademarks ........................................................... 17
12.4 Electrostatic Discharge Caution ............................ 17
12.5 Glossary ................................................................ 17
13 Mechanical, Packaging, and Orderable
Information ........................................................... 17
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (September 2008) to Revision B
Page
• Added AEC-Q100 qualifications ............................................................................................................................................ 1
• Deleted Ordering Information table ........................................................................................................................................ 1
• Added Applications section, ESD Ratings table, Thermal Information table, Feature Description section, Device
Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout
section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section. ..... 1
• Deleted 1.5-V, 2.7-V, and 3-V versions throughout the data sheet........................................................................................ 1
• Changed Pin Configuration and Functions section ................................................................................................................ 3
• Deleted the "Continuous total power dissipation" row from the Absolute Maximum Ratings table........................................ 4
• Changed TJ to TA in the Recommended Operating Conditions table..................................................................................... 4
• Deleted Dissipation Ratings table .......................................................................................................................................... 4
2
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etcTI TPS76801-Q1
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5 Pin Configuration and Functions
TPS768-Q1
SGLS155B – FEBRUARY 2003 – REVISED NOVEMBER 2016
PWP PowerPAD™ Package
20-Pin HTSSOP With Exposed Thermal Pad
Top View
GND/HSINK
1
GND/HSINK
2
GND
3
NC
4
EN
5
IN
6
IN
7
NC
8
GND/HSINK
9
GND/HSINK
10
Thermal
Pad
20
GND/HSINK
19
GND/HSINK
18
NC
17
NC
16
PG
15
FB/NC
14
OUT
13
OUT
12
GND/HSINK
11
GND/HSINK
NC – No internal connection
Not to scale
Pin Functions
PIN
I/O
NAME
NO.
DESCRIPTION
EN
5
I
Enable input
FB/NC
15
I
Feedback input voltage for adjustable device (no connect for fixed options)
GND
3
LDO ground
GND/HSINK
1, 2, 9, 10, 11,
12, 19, 20
Ground and heatsink
IN
6, 7
I
Input
NC
4, 8, 17, 18
No connect
OUT
13, 14
O
Regulated output voltage
PG
16
O
Power-good output
NC
17
No connect
Thermal pad
Solder the thermal pad to the board.
Copyright © 2003–2016, Texas Instruments Incorporated
Product Folder Links: TPS768-Q1
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