MC34704BEPR2

Document Number: MC34704 Freescale Semiconductor Rev. 8.0, 12/2014 Technical Data Multiple Channel DC-DC Power 34704 Management IC The 34704 is a multi-channel Power Management IC (PMIC) used to address power management needs for various multimedia MULTI-CHANNEL IC application microprocessors. Its ability to provide either 5 or 8 independent output voltages with a single input power supply (2.7 and 5.5 V) 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. This device is powered by SMARTMOS technology. The 34704 is housed in a 7x7 mm, Pb-free, QFN56 and is capable of operating at a switching frequency of up to 2.0 MHz. This makes it possible to reduce external component size and to implement full space efficient power management solutions. EP SUFFIX (PB-FREE) Features 98ASA00712D 56-PIN QFN 8 DC/DC (34704A) or 5 DC/DC (34704B) switching regulators with up to 2% output voltage accuracy Dynamic voltage scaling on all regulators. ORDERING INFORMATION Selectable output voltage or current regulation on REG8 Temperature 2 I C programmability Device Package Range (T ) A Output undervoltage and overvoltage detection for each regulator MC34704AEP/R2 Overcurrent limit detection and short-circuit protection for each -20 C to 85 C 56 QFN EP regulator MC34704BEP/R2 Thermal limit detection for each regulator, except REG7 Integrated compensation for REG1, REG3, REG6, and REG8 5.0 A maximum shutdown current (All regulators are off, 5.5 V VIN) True cutoff on all of the boost and buck-boost regulators 34704A/B V BKL REG 8 V DDR REG 4 DDR 2 MEMORY I C COMM GND V CORE REG 3 V IO1 REG 2 MPU LCD V IO2 GND REG 5 PGND +5V *REG 1 *REG 6 VREF+ (5 to 16V) *REG 7 VREF- (-5 to -9V) * Available only in 34704A device Figure 1. 34704 Simplified Application Diagram Freescale Semiconductor, Inc., 2008 - 2014. All rights reserved.DEVICE VARIATIONS DEVICE VARIATIONS Table 1. Device Variations Orderable Part Number No. of Regulators Regulator Number MC34704AEP/R2 8 Reg 1 - 8 MC34704BEP/R2 5 Reg 2, 3, 4, 5, 8 34704 Analog Integrated Circuit Device Data 2 Freescale Semiconductor