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MC34704AEP/R2 PDF预览

MC34704AEP/R2

更新时间： 2022-11-18 18:52:32
品牌 Logo 应用领域
飞思卡尔 - FREESCALE /
页数 文件大小 规格书
49页 1543K
描述
Multiple Channel DC-DC Power Management IC

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MC34704AEP/R2 数据手册

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Document Number: MC34704  
Rev. 4.0, 6/2009  
Freescale Semiconductor  
Technical Data  
Multiple Channel DC-DC Power  
Management IC  
34704  
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.  
MULTI-CHANNEL IC  
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.  
EP SUFFIX (PB-FREE)  
98ASA10751D  
Features  
• 8 DC/DC (34704A) or 5 DC/DC (34704B) switching regulators with  
up to ±2% output voltage accuracy  
56-PIN QFN  
• 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  
ORDERING INFORMATION  
Temperature  
Package  
Device  
Range (T )  
A
MC34704AEP/R2  
MC34704BEP/R2  
-20°C to 85°C  
56 QFN EP  
• 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  
34704A/B  
V
V
BKL  
REG 8  
REG 4  
DDR  
DDR  
MEMORY  
I2C COMM  
GND  
V
CORE  
REG 3  
V
V
IO1  
REG 2  
REG 5  
LCD  
MPU  
IO2  
GND  
+5V  
PGND  
*REG 1  
VREF+ (5 to 16V)  
VREF- (-5 to -9V)  
*REG 6  
*REG 7  
* Available only in 34704A device  
Figure 1. 34704 Simplified Application Diagram  
Freescale Semiconductor, Inc. reserves the right to change the detail specifications,  
as may be required, to permit improvements in the design of its products.  
© Freescale Semiconductor, Inc., 2008 - 2009. All rights reserved.  
1234567...49

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