September 2006 LP5552 PWI 2.0 and PowerWise™ Technology Compliant Energy Management Unit General Description Features The LP5552 is a PWI 2.0 compliant Energy Management System for reducing power consumption of stand-alone mobile phone processors such as base-band or applications processors. The LP5552 contains two advanced, digitally controlled switching regulators for supplying variable voltage to processor core and memory. The device also incorporates 5 programmable LDO regulators for powering I/O, peripheral logic blocks, maintaining memory retention (dual-domains) in shutdown mode, and auxillary functions. n Two 800 mA buck regulators operate 180 degrees out of phase for reduced EMI n 3.6 MHz PWM switching frequency n Five programmable LDOs ideal for I/O , PLL, and memory retention supply generation. n Supports high-efficiency PowerWise Technology Adaptive Voltage Scaling n PWI 2.0 open standard interface for system power management n Digitally controlled intelligent voltage scaling n Auto or PWI controlled PFM mode transition n Internal soft start/startup sequencing. n Power OK output. The device is controlled via the PWI 2.0 open-standard interface. The LP5552 operates cooperatively with PowerWise technology compatible processors to optimize supply voltages adaptively over process and temperature variations (adaptive voltage scaling) or dynamically using frequency/ voltage pre-characterized look-up tables (dynamic voltage scaling). Applications n n n n n n Dual core processors GSM/GPRS/EDGE & UMTS cellular handsets Hand-held radios PDAs Battery powered devices Portable instruments System Diagram 20210301 FIGURE 1. System Diagram © 2006 National Semiconductor Corporation DS202103 www.national.com LP5552 PWI 2.0 and PowerWise™ Technology Compliant Energy Management Unit ADVANCE INFORMATION LP5552 Connection Diagrams and Package Mark Information 36 bump uSMD package NS Package Number TLA36TTA 20210302 FIGURE 2. LP5552 Pinout www.national.com 2 inches (millimeters) unless otherwise noted 36-Bump uSMD Package NS Package Number TLA36TTA National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information visit us at www.national.com. LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. BANNED SUBSTANCE COMPLIANCE National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/quality/green. Lead free products are RoHS compliant. National Semiconductor Americas Customer Support Center Email: [email protected] Tel: 1-800-272-9959 www.national.com National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Support Center Email: [email protected] National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: [email protected] Tel: 81-3-5639-7560 LP5552 PWI 2.0 and PowerWise™ Technology Compliant Energy Management Unit Physical Dimensions