Features: Available in 5-V, 4.85-V, and 3.3-V
Fixed-Output and Adjustable Versions
Very Low-Dropout Voltage . . . Maximum of
32 mV at IO = 100 mA (TPS7150)
Very Low Quiescent Current Independent
of Load . . . 285 A Typ
Extremely Low Sleep-State Current
0.5 A Max
2% Tolerance Over Specified Conditions
For Fixed-Output Versions
Output Current Range of 0 mA to 500 mA
TSSOP Package Option Offers Reduced
Component Height for Space-Critical
Applications
Power-Good (PG) Status OutputApplicationAudio
Automotive
Broadband
Digital Control
Military
Optical Networking
Security
Telephony
Video & Imaging
WirelessPinout
SpecificationsInput voltage range¶, VI, PG, SENSE, EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 11 V
Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . See Dissipation Rating Tables 1 and 2
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 150
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
DescriptionThe TPS71xx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO TPS71xx performance is achieved by replacing the typical pnp pass transistor with a PMOS device.
Because the PMOS TPS71xx behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS7150) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS TPS71xx pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 mA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO TPS71xx family also features a sleep mode; applying a TTL high signal to EN(enable)shuts down the regulator, reducing the quiescent current to 0.5 mA maximum at TJ = 25°C.
TPS7148Q Data Sheet
