Datasheet > MC34704BEPR2

MC34704BEPR2

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		/
页数	文件大小	规格书
49页	2434K
描述
Multiple Channel DC-DC Power Management IC

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MC34704BEPR2 数据手册

Document Number: MC34704

Rev. 3, 7/2008

Freescale Semiconductor

Advance Information

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 )

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

BKL

REG 8

REG 4

DDR

MEMORY

I²C COMM

GND

CORE

REG 3

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

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

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