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參數(shù)資料
| 型號(hào)： | PC34704BEP |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 電源管理 |
| 英文描述： | 8-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC56 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, 0.40 MM PITCH, ROHS COMPLIANT, QFN-56 |
| 文件頁數(shù)： | 1/50頁 |
| 文件大小： | 2010K |
| 代理商： | PC34704BEP |
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Document Number: MC34704
Rev. 2.0, 4/2008
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
5A 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
PC34704BEP/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
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