TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A ...
TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A – SEPTEMBER 2000 – REVISED MAY 2001
D 100-mA Low-Dropout Regulator D Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V D Output Noise Typically 56 µVRMS
(TPS78930)
D Only 17 µA Quiescent Current at 100 mA D 1 µA Quiescent Current in Standby Mode D Dropout
Voltage Typically 115 mV at 100 mA
(TPS78930)
D Over Current Limitation D –40°C to 125°C Operating Junction
Temperature Range
D 5-Pin SOT-23 (DBV) Package
description
The TPS789xx family of low-dropout (LDO)
voltage regulators offers the benefits of low-dropout
voltage, ultralow-power operation, low-output noise, and miniaturized packaging. These regulators feature low-dropout
voltages and ultralow quiescent current compared to conventional LDO regulators. An internal resistor, in conjunction with an external bypass capacitor, creates a low-pass filter to reduce the noise. The TPS78930 exhibits only 56 µVRMS of output
voltage noise using 0.01 µF bypass and 10 µF output
capacitors. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS789xx series devices are ideal for micropower operations, low output noise, and where board space is limited.
The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout
voltage is very low, typically 115 mV at 100 mA of load current (TPS78930), and is directly proport...