FEATURES

· Controlled Baseline

– One Assembly/Test Site, One Fabrication

Site

· Extended Temperature Performance of –55°C

to 125°C

· Enhanced Diminishing Manufacturing Sources

(DMS) Support

· Enhanced Product-Change Notification

· Qualification Pedigree (1)

· 1.5 A Low Dropout Voltage Regulator

· Available in 2.5 V Fixed Output

· Open Drain Power Good (PG) Status Output

· Ultra Low 75 μA Typical Quiescent Current

· Fast Transient Response

· 3% Tolerance Over Specified Conditions for

Fixed Output Version

· 20 Pin TSSOP (PWP) PowerPAD™ Package

· Thermal Shutdown Protection

DESCRIPTION/ORDERING INFORMATION

TPS75125-EP is a low-dropout regulator with a power good (PG) function. Quiescent current is 75 μA at full load

and drops down to 1 μA when the device is disabled. TPS75125-EP is designed to have fast transient response

for larger load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low and is directly

proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the

quiescent current is very low and independent of output loading (typically 75 μA over the full range of output

current, 1 mA to 1.5 A). These two key specifications yield a significant improvement in operating life for

battery-powered systems.

The device is enabled when the enable (EN) input is connected to a low-level voltage. This low dropout (LDO)

device also features a sleep mode; applying a TTL high signal to EN shuts down the regulator, reducing the

quiescent current to less than 1 μA at TJ = 25°C.

The TPS75125-EP power good (PG) terminal is an active-high, open-drain output that can be used to implement

a power-on reset or a low-battery indicator.

The TPS75125-EP is offered in a 2.5 V fixed-voltage version. Output voltage tolerance is specified as a

maximum of 3% over line, load, and temperature ranges. The TPS75125-EP is available in a 20-pin TSSOP

(PWP) package.