LD59150PURY STMicroelectronics

LD59150 Datasheet 1.5 A low-dropout linear regulator with programmable soft-start Features AEC-Q100 qualified DFN6 (3x3) Dual supply pins Wettable Flanks V : 0.8 V to 5.5 V IN V : 2.7 V to 5.5 V BIAS V range: 0.8 V to 3.6 V OUT Ultra low-dropout: 65 mV typ. (125 mV max.) at 1.5 A High V accuracy OUT 0.5% typ. at T amb 2% max. Power Good function Programmable soft-start Thermal shutdown Current limitation circuit Adjustable output voltage Stable with low ESR output capacitor (> 2.2 F) DFN10 (3x3) mm package with wettable flanks Operating temperature range: - 40 C + 125 C Maturity status link Applications LD59150 Automotive and industrial post regulation Generic POL Automotive and industrial ASICs and FPGA supply Telecom infrastructure A.D.A.S. (advanced driver-assistance systems) 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 R of the pass-element to be reduced, which results in a DS(on) 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. DS12455 - Rev 5 - November 2020 www.st.com For further information contact your local STMicroelectronics sales office.LD59150 Diagram 1 Diagram Figure 1. Block diagram V V IN OUT Current limit V BIAS UVLO EN Thermal Enable protection OPAMP + + FB Soft Bandgap Start reference PG SS + - 0.9 x V REF GND DS12455 - Rev 5 page 2/22