1 Features
1• 4-V to 40-V Wide VI Input Voltage Range With up
to 45-V Transient
• Maximum Output Current: 150 mA
• Low Quiescent Current (IQ):
– 15 μA Typical at Light Loads
– 25 μA Maximum Under Full Temperature
• 450-mV Typical Low Dropout Voltage at 100 mA
Load Current
• 10-mV Line Regulation Maximum
• 20-mV Load Regulation Maximum
• Stable With Low-ESR Ceramic Output Capacitor
(2.2 μF to 100 μF)
• Fixed 3.3-V and 5-V Output Voltage Options
• Integrated Fault Protection:
– Thermal Shutdown
– Short-Circuit Protection
• Packages:
– 5-Pin SOT-23 Package
– 4-Pin SOT-223 Package

2 Applications
• E-meters, Water Meters and Gas Meters
• Appliances and White Goods
• Fire Alarm, Smoke Detector
• Medical, Health, and Fitness Applications

3 Description
The TPS7B69xx device is a low-dropout linear
regulator that operates at up to 40-V VI. With only
15-μA (typical) quiescent current at light load, the
device is applicable for standby microcontrol-unit
systems, especially for always-on applications like emeters,
fire alarms, and smoke detectors.
The devices have integrated short-circuit and
overcurrent protection. The TPS7B69xx device
operates over a –40°C to 105°C temperature range.