描述 Description

The LD59150 is a 1.5 A LDO regulator, designed to be used in several environments.

Two versions, Industrial and AEC-Q100 are available.

NMOS topology allows RDS(on) of the pass-element to be reduced, which results in a

very small dropout voltage even with a very low input supply voltage.

Output voltage can be adjusted from 0.8 to 3.6 V, by an external resistor divider.

The programmable soft-start circuit offers the possibility to control the inrush current

at start-up providing a monotonic supply voltage to the load.

The LD59150 has enable pin to turn on/off (EN) the regulator and Power Good to

monitor the regulated output voltage (PG).

The combination of both can be used to set a desired power sequence in case of

multiple regulated rails.

The LD59150 embeds protection functions, such as: current limit and thermal

shutdown.

特性 Features

? AEC-Q100 qualified

? Dual supply pins

– VIN: 0.8 V to 5.5 V

– VBIAS: 2.7 V to 5.5 V

? VOUT range: 0.8 V to 3.6 V

? Ultra low-dropout: 65 mV typ. (125 mV max.) at 1.5 A

? High VOUT accuracy

– 0.5 typ. at Tamb

– 2 max.

? Power Good function

? Programmable soft-start

? Thermal shutdown

? Current limitation circuit

? Adjustable output voltage

? Stable with low ESR output capacitor (> 2.2 μF)

? DFN10 (3x3) mm package with wettable flanks

? Operating temperature range: - 40 °C + 125 °C

Applications

? Automotive and industrial post regulation

? Generic POL

? Automotive and industrial ASICs and FPGA supply

? Telecom infrastructure

? A.D.A.S. (advanced driver-assistance systems)