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 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 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.
International Rectifier
