L6932 HIGH PERFORMANCE 2A ULDO LINEAR REGULATOR 2V TO 14V INPUT VOLTAGE RANGE 200m Rdson MAX. 200A QUIESCENT CURRENT AT ANY LOAD EXCELLENT LOAD AND LINE REGULATION 1.5V, 1.8V AND 2.5V FIXED VOLTAGE SO-8 (4+4) ADJUSTABLE FROM 1.2V TO 5V (L6932D1.2) 1% VOLTAGE REGULATION ACCURACY ORDERING NUMBERS: L6932D1.2 (SO-8) L6932D1.2TR (T&R) SHORT CIRCUIT PROTECTION L6932D1.5 (SO-8) L6932D1.5TR (T&R) THERMAL SHUT DOWN L6932D1.8 (SO-8) L6932D1.8TR (T&R) SO-8 (4+4) PACKAGE L6932D2.5 (SO-8) L6932D2.5TR (T&R) APPLICATIONS Mosfet, can be usefull for the DC-DC conversion between 2.5V and 1.5V at 2A in portable applica- MOTHERBOARDS tions reducing the power dissipation. MOBILE PC L6932 is available in 1.5V, 1.8V, 2.5V and adj ver- HAND-HELD INSTRUMENTS sion from 1.2V and ensure a voltage regulation ac- PCMCIA CARDS curacy of 1%. PROCESSORS I/O The current limit is fixed at 2.5A to control the cur- rent in short circuit condition within 8%. The cur- CHIPSET AND RAM SUPPLY rent is sensed in the power mos in order to limit the power dissipation. DESCRIPTION The device is also provided of a thermal shut down that limits the internal temperature at 150C with The L6932 Ultra Low Drop Output linear regulator an histeresys of 20C. L6932 provides the Enable operates from 2V to 14V and is able to support 2A. and the Power good functions. Designed with an internal 50m N-channel TYPICAL OPERATING CIRCUIT V IN OUT V OUT IN 3 2 1.5V-1.8V-2.5V 2V to 14V L6932D PGOOD C2 C1 4 5,6,7,8 1 GND EN V IN OUT V OUT IN 4 2 1.2V to 5V 2V to 14V R1 L6932D ADJ C2 C1 3 5,6,7,8 1 R2 GND EN Rev. 9 December 2005 1/11L6932 PIN CONNECTIONS EN 1 8 GND EN 1 8 GND IN 2 GND IN 2 GND 7 7 ADJ 3 GND OUT 3 GND 6 6 OUT 4 5 GND PGOOD 4 GND 5 L6932D1.2 L6932D1.5 L6932D1.8 L6932D2.5 PIN FUNCTION L6232D L6232D N 1.5/1.8/ Description 1.2 2.5 1 EN Enables the device if connected to Vin and disables the device if forced to gnd. 2 IN Supply voltage. This pin is connected to the drain of the internal N-mos. Connect this pin to a capacitor larger than 10F. ADJ Connecting this pin to a voltage divider it is possible to programme the output voltage between 1.2V and 5V. 3 OUT Regulated output voltage. This pin is connected to the source of the internal N-mos. Connect this pin to a capacitor of 10F. OUT Regulated output voltage. This pin is connected to the source of the internal N-mos. Connect this pin to a capacitor of 10F. 4 PGOOD Power good output. The pin is open drain and detects the output voltage. It is forced low if the output voltage is lower than 90% of the programmed voltage. 5, 6, 7, 8 GND Ground pin. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V VIN and Pgood 14.5 V in EN, OUT and ADJ -0.3 to (V +0.3) V in THERMAL DATA Symbol Parameter Value Unit R Thermal Resistance Junction to Ambient 62 (*) C/W th J-amb T Maximum Junction Temperature 150 C max Storage Temperature Range -65 to 150 C T stg 2 (*) Measured on Demoboard with about 4 cm of dissipating area 2 Oz. 2/11