IRU1237SC

Data Sheet No. PD94581 IRU1237SC THREE INTEGRATED, FIXED OUTPUT LINEAR VOLTAGE REGULATORS PRELIMINARY DATA SHEET FEATURES Stable with Ceramic Capacitor Fixed 8V, 3.3V and 2.6V Fast Transient Response Output Current Limiting for each outputs Built-In Thermal Shutdown DESCRIPTION The IRU1237SC voltage regulator solution contains three integrated, fixed, linear voltage regulators in one 7-pin surface mount package. The first is a 2.6V regulator to power the read channel and integrated controller/ m P. The second is a 3.3V regulator to power the controller I/O and memory chips requiring 3.3V. The last is an 8V regulator to power the preamp chip. The bandgap reference, the 8V ground, and the substrate are all tied to a common ground pin, while the 2.6V and 3.3V ground is tied to a separate ground pin. This grounding scheme allows for improved noise isolation between the 8V regulator and the 2.6V and 3.3V regulators. The 2.6V and 3.3V regulators shall each be capable of 1.2A continuous for a 5.25V input. The 8V regulator shall be capable of 0.2A continuous for a 13.2V input. APPLICATIONS Hard Disk Drive Multi-Outputs Applications High Efficiency Linear Regulator TYPICAL APPLICATION www.DataSheet4U.com V26 VDD 2.6V / 1.2A 10uF 12V 1uF IRU1237SC V8 Gnd8 VCC 10uF 1uF 8V / 200mA 5V 3.3V / 1.2A V33 Gnd26/33 10uF Figure 1 - Typical application of IRU1237SC. PACKAGE ORDER INFORMATION TJ (°C) 0 To 150 7-PIN PLASTIC Ultra Thin-PakTM (P) IRU1237SCCP PACKAGE MARKING US1237SCCP ...