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ST3M01 Datasheet TRIPLE VOLTAGE REGULATOR

Manufacturer: STMicroelectronics

General Description

Pin N° 1 2 3 4 5 6 7 Symbol GND SW GND SW Virtual GND LBO VREF IN Linear OUT LB Name and Function Switching Ground.

Must be low impedance;

solder directly to GND plane Switching Ground.

Overview

ST3M01 TRIPLE VOLTAGE REGULATOR s s s s s s ONLY TWO CELL NEED AS INPUT THREE REGULATED OUTPUT 1) HIGH EFFICENCY PFM DC/DC CONVERTER 3.3V AT 200mA (87% EFFICENCY) 2) VERY LOW NOISE AND VERY LOW DROP VREG (3V AT 20mA) 3) VERY LOW NOISE AAND VERY LOW DROP VREG (1.9V AT 20mA) LOGIC CONTROLLED ELECTRONIC SHUTDOWN LOW BATTERY DETECTOR VIRTUAL GND PIN TEMPERATURA RANGE: -40 TO 85°C SO-14 SCHEMATIC DIAGRAM Vin 150 µF 15 µH IN_SW Lx DC/DC DC/DC OUT DC/DC Linear A OUT LA 1 µF IN_Linear Linear B OUT LB 1 µF Virtual GND 150 µF On-Mode Off-Mode SHDN + LBO Ref Ref - Vref 100 nF 1 KΩ GND_SW GND_Signal November 2000 1/11 Free Datasheet http://www.datasheet4u.com/ ST3M01 ABSOLUTE MAXIMUM RATINGS Symbol VIN VSHDN VLX VLBO ILBO Tstg Top Shutdown Input Voltage Switch Voltage Low Battery Output Voltage Low Battery Output Maximum Current Storage Temperature Range Operating Junction Temperature Range Parameter DC Input Voltage (Both IN_Linear and IN_SW) Value -0.3 to 7 -0.3 to VIN+0.3 -0.3 to 7 -0.3 to 7 -0.