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MC34704BEP 数据表(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC34704BEP 数据表(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 49 page Document Number: MC34704 Rev. 3, 7/2008 Freescale Semiconductor Advance Information * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2008. All rights reserved. Multiple Channel DC-DC Power Management IC The 34704 is a multi-channel Power Management IC (PMIC) used to address power management needs for various multimedia application microprocessors. Its ability to provide either 5 or 8 independent output voltages with a single input power supply (2.7 and 5.5V) together with its high efficiency, make it ideal for portable devices powered up by Li-Ion/polymer batteries or for USB powered devices as well. The 34704 is housed in a 7x7mm, Pb-free, QFN56 and is capable of operating at a switching frequency of up to 2MHz. This makes it possible to reduce external component size and to implement full space efficient power management solutions. Features • 8 DC/DC (34704A) or 5 DC/DC (34704B) switching regulators with up to ±2% output voltage accuracy • Dynamic voltage scaling on all regulators. • Selectable voltage mode control or current mode control on REG8 •I2C programmability • Output under-voltage and over-voltage detection for each regulator • Over-current limit detection and short-circuit protection for each regulator • Thermal limit detection for each regulator, except REG7 • Integrated compensation for REG1, REG3, REG6, and REG8 • 5.0µA maximum shutdown current (All regulators are off, 5.5V VIN) • True cutoff on all of the boost and buck-boost regulators • Pb-free packaging designated by suffix code EP Figure 1. 34704 Simplified Application Diagram MULTI-CHANNEL IC 34704 ORDERING INFORMATION Device Temperature Range (TA) Package MC34704AEP/R2 -20°C to 85°C 56 QFN EP MC34704BEP/R2 EP SUFFIX (PB-FREE) 98ASA10751D 56-PIN QFN MPU DDR MEMORY VCORE VIO1 VIO2 VDDR VBKL LCD +5V VREF+ (5 to 16V) VREF- (-5 to -9V) 34704A/B * Available only in 34704A device REG 8 REG 4 REG 3 REG 2 REG 5 *REG 1 *REG 6 *REG 7 PGND I2C COMM GND GND |
类似零件编号 - MC34704BEP |
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类似说明 - MC34704BEP |
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