Datasheet > MC34727BFCR2

MC34727BFCR2

更新时间： 2024-09-19 04:40:51

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		稳压器开关光电二极管
页数	文件大小	规格书
19页	1281K
描述
600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode

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MC34727BFCR2 数据手册

Document Number: 34727

Rev. 1.0, 5/2008

Freescale Semiconductor

Advance Information

600mA High Efficiency Low

Quiescent Current Synchronous

Buck Regulator With Z-mode

34727

The 34727 is a high efficiency, low quiescent current (I_Q),

synchronous buck regulator, implementing Freescale’s innovative

Z-mode architecture. Freescale’s Z-mode architecture greatly

improves the ripple performance during light load currents, but still

maintains a low quiescent current of 65µA, at no load in “Sleepy” Z-

mode.

POWER MANAGEMENT IC

The 34727 accepts an input voltage in the range of 2.7 to 5.5V,

making it ideally suited for single cell Li-Ion based applications. Factory

preset output voltages, ranging from 0.8 to 3.3V, reduce the number of

required auxiliary components. The part is able to provide 600mA of

continuous load current across the input and the output voltage ranges.

Bottom View

FC SUFFIX (PB-FREE)

98ASA10787D

8-PIN UDFN

2X2

The 34727 switches at 2.0MHz to allow the use of small surface

mount inductors and capacitors, to save precious board space.

The 34727 is available in the small, space saving, and low cost, 2x2

UDFN-8 packages. The part is guaranteed for operation over the -25°C

to +85°C temperature range.

ORDERING INFORMATION

Temperature

Device

Package

Range (T )

MC34727AFC/R2

MC34727BFC/R2

MC34727CFC/R2

Features

-25°C to 85°C

8-UDFN

• 94% peak efficiency

• 2.0MHz switching frequency

• Automatic transition to energy saving light load Z-mode (low ripple)

• 2.7V to 5.5V input voltage range

• Fixed output voltage options from 0.8V to 3.3V

• 65µA quiescent current during sleepy Z-mode

• 600mA maximum continuous output current

• Internal 2.0ms soft start

• Thermal and over-current protection

• 0.1µA quiescent current in shutdown (disabled)

• Ultra thin 2x2 UDFN package

• Pb-free packaging designated by suffix code FC

34727

2.7V ~ 5.5V

0.8 - 3.3V *

600mA

VIN

C_IN

C_OUT

OFF

GND

*Programmable

See table 1

Figure 1. 34727 Typical Operating Circuit

* This document contains certain information on a new product.

Specifications and information herein are subject to change without notice.

12 3 4 5 6 7...19

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与MC34727BFCR2相关器件

型号	品牌	获取价格	描述	数据表
MC34727CFC	FREESCALE	获取价格	600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
MC34727CFCR2	FREESCALE	获取价格	600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
MC34727CFCR2	NXP	获取价格	SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, 0.65 MM HEIGHT, 0.50 MM
MC34727DFC	NXP	获取价格	SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, 0.65 MM HEIGHT, 0.50 MM
MC34727DFCR2	NXP	获取价格	SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, 0.65 MM HEIGHT, 0.50 MM
MC34729	ETC	获取价格	1.25mm Receptacle Housing - W2B
MC34731	ETC	获取价格	1.25mm Receptacle Housing - W2B
MC34733	ETC	获取价格	PCB Through Hole Header - Single Row Vertical
MC34735	ETC	获取价格	PCB Through Hole Header - Single Row Vertical
MC34737	ETC	获取价格	PCB Through Hole Header - Single Row Vertical

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