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TPS7A4101
SBVS183B – DECEMBER 2011 – REVISED NOVEMBER 2018
TPS7A4101 50-V Input Voltage, 50-mA, Very High Voltage Linear Regulator
1 Features
•1 Wide Input Voltage Range: 7 V to 50 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: about 1.175 V to 48 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-8 PowerPAD™ • Operating Temperature Range: –40°C to 125°C
2 Applications
• Microprocessors, Microcontrollers Powered by Industrial Busses with High Voltage Transients
• Industrial Automation • Telecom Infrastrucure • Automotive • LED Lighting • Bias Power Supplies
3 Description
The TPS7A4101 is a very high voltage-tolerant linear regulator that offers the benefits of a thermallyenhanced package (HVSSOP-8), and is able to withstand continuous DC or transient input voltages of up to 50 V.
The TPS7A4101 is stable with any output capacitance greater than 4.7 µF and any input capacitance greater than 1 µF (over temperature and tolerance). Thus, implementations of this device require minimal board space because of its miniaturized packaging (HVSSOP-8) and a potentially small output capacitor. In addition, the TPS7A4101 offers an enable pin (EN) compatible with standard CMOS logic, to enable a low-current shutdown mode.
The TPS7A4101 has an internal thermal shutdown and current limiting to protect the system during fault conditions. The HVSSOP-8 packages has an operating temperature range of TJ = –40°C to 125°C.
In addition, the TPS7A4101 is ideal for generating a low-voltage supply from intermediate voltage rails in telecom and industrial applications; not only can the device supply a well-regulated voltage rail, but the device 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.
Device Information(1)
PART NUMBER
PACKAGE
TPS7A4101
HVSSOP (8)(2)
BODY SIZE (NOM) 3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) HVSSOP is identical to MSOP.
50 V
Typical Application Diagram
VIN
VIN IN OUT
VOUT
CIN Device
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.
TPS7A4101
SBVS183B – DECEMBER 2011 – REVISED NOVEMBER 2018
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......................................................... 3
6.1 Absolute Maximum Ratings ...................................... 3 6.2 ESD Ratings.............................................................. 3 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 .................................................... 14 11 Device and Documentation Support ................. 15 11.1 Receiving Notification of Documentation Updates 15 11.2 Community Resources.......................................... 15 11.3 Trademarks .....