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.