Home Products Power A high-voltage ultralow-IQ low-dropout regulator

A high-voltage ultralow-IQ low-dropout regulator

Texas Instruments’ TPS7B6701-Q1, TPS7B6733-Q1, and TPS7B6750-Q1 devices (TPS7B67xx-Q1) are low-dropout linear regulators designed for up to 40V VIN operations. With only 15µA quiescent current at light load that greatly increases the endurance time of the automotive battery, the devices drive loads up to 450mA. The TPS7B67xx-Q1 family of devices features an integrated short-circuit and overcurrent protection.

Power

20 June 2018

byNews Desk

Reset delay and power-good signal are implemented on power-up to indicate that the output voltage is stable and is in regulation. An external capacitor programs the delay. The enable function activates and deactivates the device with an I/O port from the MCU. The device family operates at a temperature range of –40°C to 125°C.

Features

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 C3B
4V to 40V Wide-VIN Input-Voltage Range With up to 45V Transient
Maximum Output Current, 450mA
Low Quiescent Current (IQ))
< 4µA When EN = Low (Shutdown Mode)
15µA Typical at Light Loads
Low-ESR (0.001 to 20Ω) Ceramic Output-Stability Capacitor (10µF to 500µF When VO ≥ 2.5V, 22µF to 500µF when VO = 1.5V to 2.5V)
Maximum Dropout Voltage 450mV at 400mA
Adjustable 1.5V to 18V Output Voltages
Low-Input Voltage Tracking to UVLO
Integrated Power-On Reset
Programmable-Reset Pulse Delay
Open-Drain Reset Output
Integrated Fault Protection
Thermal Shutdown
Short-Circuit Protection
20-Pin HTSSOP Package