Description of TPS7A66-Q1

The TPS7A66-Q1 and TPS7A69-Q1 are low dropout linear regulators designed for circuits operating from input voltages up to 40V. With a quiescent current of only 12µA at no load, these devices are ideal for standby microprocessor control unit systems, especially in automotive applications where low power consumption is a key concern.

This device features integrated short-circuit and overcurrent protection. The device performs a reset delay on power-up to indicate that the output voltage is stable and in regulation. The user can program this delay with an external capacitor. The low-voltage tracking feature allows the use of smaller input capacitors and potentially eliminates the need for a boost converter during cold crank conditions.

The device operates over the -40°C to 125°C temperature range. The TPS7A6650EDGNRQ1 device is AEC-Q100 Grade 0 qualified and has an operating temperature range of –40°C to 150°C. These characteristics are well suited for high efficiency, high power density, and robustness requirements in power supplies in a variety of automotive applications.

Features of the TPS7A66-Q1

Compliant with automotive applications

Has the following results in accordance with AEC-Q100 testing guidelines:

Place the device temperature grade 1 throughout the document

Device Temperature Grade Grade 0 (TPS7A6650EDGNRQ1 only)

Device Human Body Model (HBM) Electrostatic Discharge (ESD) Classification Level H2

Device Charged Device Model (CDM) ESD Classification Level C4

Device Junction Temperature Range:

–40°C to +150°C

Wide 4V to 40V input voltage range, transient voltages up to 45V

Output current: 150mA

Low Quiescent Current, I(q):

2μA when EN = low (shutdown mode)

12µA typical at light load

Low Equivalent Series Resistance (ESR) Ceramic Output Stabilizing Capacitors (2.2μF-100μF)

Dropout voltage of 300mV at 150mA

(Typical at V(Vin)= 4V)

Fixed (3.3V and 5V) and Adjustable

(1.5V to 5V) Output Voltage

(Adjustable output voltage is only available for TPS7A66-Q1)

Low input voltage tracking

Integrated power-on reset:

Programmable reset pulse delay

Open-drain reset output

Integrated fault protection:

thermal shutdown

Short circuit protection function

Input voltage detection comparator

(TPS7A69-Q1 only)

Package:

8-Pin SOIC-D (TPS7A69-Q1)

8-Pin HVSSOP-DGN (TPS7A6601-Q1)