Linear Regulator. TPS7A4001 Datasheet

TPS7A4001 Regulator. Datasheet pdf. Equivalent

Part TPS7A4001
Description Very High Voltage Linear Regulator
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TPS7A4001
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TPS7A4001
SBVS162B – MARCH 2011 – REVISED JULY 2015
TPS7A4001 100-V Input Voltage, 50-mA, Very High Voltage Linear Regulator
1 Features
1 Very High Maximum Input Voltage: 100 V
• Wide Input Voltage Range: 7 to 100 V
• Accuracy:
– Nominal: 1%
– Over Line, Load, and Temperature: 2.5%
• Low Quiescent Current: 25 µA
• Quiescent Current at Shutdown: 4.1 µA
• Maximum Output Current: 50 mA
• CMOS Logic-Level-Compatible Enable Pin
• Adjustable Output Voltage from about 1.175 to
90 V
• Stable With Ceramic Capacitors:
– Input Capacitance: 1 µF
– Output Capacitance: 4.7 µF
• Dropout Voltage: 290 mV
• Built-In Current Limit and Thermal Shutdown
Protection
• Package: High Thermal Performance HVSSOP
PowerPAD™
• Operating Temperature Range: –40°C to 125°C
2 Applications
• Microprocessors, Microcontrollers Powered by
Industrial Busses With High Voltage Transients
• Industrial Automation
• Telecom Infrastructure
• Automotive
• Power over Ethernet (PoE)
• LED Lighting
• Bias Power Supplies
3 Description
The TPS7A4001 device is a very high voltage-
tolerant linear regulator that offers the benefits of a
thermally-enhanced package (HVSSOP), and is able
to withstand continuous DC or transient input
voltages of up to 100 V.
The TPS7A4001 device is stable with any output
capacitance greater than 4.7 µF and any input
capacitance greater than 1 µF (over temperature and
tolerance). Therefore, implementations of this device
require minimal board space because of its
miniaturized packaging (HVSSOP) and a potentially
small output capacitor. In addition, the TPS7A4001
device offers an enable pin (EN) compatible with
standard CMOS logic to enable a low-current
shutdown mode.
The TPS7A4001 device has an internal thermal
shutdown and current limiting to protect the system
during fault conditions. The HVSSOP packages has
an operating temperature range of TJ = –40°C to
125°C.
In addition, the TPS7A4001 device is ideal for
generating a low-voltage supply from intermediate
voltage rails in telecom and industrial applications;
not only can it supply a well-regulated voltage rail, but
it can also withstand and maintain regulation during
very high and fast voltage transients. These features
translate to simpler and more cost-effective electrical
surge-protection circuitry for a wide range of
applications, including PoE, bias supply, and LED
lighting.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS7A4001
HVSSOP (8)
3.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
100 V
VIN
VIN IN OUT
VOUT
CIN
TPS7A4001
CBYP
R1
VEN EN GND FB
COUT
R2
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.



TPS7A4001
TPS7A4001
SBVS162B – MARCH 2011 – REVISED JULY 2015
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 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 8
7.4 Device Functional Modes.......................................... 9
8 Application and Implementation ........................ 10
8.1 Application Information............................................ 10
8.2 Typical Application ................................................. 11
9 Power Supply Recommendations...................... 12
10 Layout................................................................... 13
10.1 Layout Guidelines ................................................. 13
10.2 Layout Example .................................................... 13
10.3 Thermal Considerations ........................................ 13
10.4 Power Dissipation ................................................. 14
11 Device and Documentation Support ................. 15
11.1 Community Resources.......................................... 15
11.2 Trademarks ........................................................... 15
11.3 Electrostatic Discharge Caution ............................ 15
11.4 Glossary ................................................................ 15
12 Mechanical, Packaging, and Orderable
Information ........................................................... 15
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (March 2011) to Revision B
Page
• Added ESD Ratings 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
• Changed Package from MSOP-8 to HVSSOP. ..................................................................................................................... 1
• Changed TJ value for disabled mode operating mode from 165 to 170°C............................................................................. 9
• Changed value from 35 to 45°C ........................................................................................................................................... 14
Changes from Original (March 2011) to Revision A
Page
• Changed all 105 V to 100 V on page 1 .................................................................................................................................. 1
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