Datasheet > MC34726EFC

MC34726EFC

更新时间： 2024-09-19 11:09:03

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		稳压器
页数	文件大小	规格书
19页	1240K
描述
300 mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode

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MC34726EFC 数据手册

Document Number: MC34726

Rev. 2.0, 9/2010

Freescale Semiconductor

Advance Information

300 mA High Efficiency Low

Quiescent Current Synchronous

Buck Regulator With Z-mode

34726

The 34726 is a high efficiency, low quiescent current (I_Q), synchro-

nous buck regulator, implementing Freescale’s innovative Z-mode ar-

chitecture. Freescale’s Z-modearchitecture greatly improves the ripple

performance during light load currents, but still maintains a low quies-

cent current of 65μA, at no load in “Sleepy” Z-mode.

POWER MANAGEMENT IC

The 34726 accepts an input voltage in the range of 2.7 to 5.5 V,

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

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

required auxiliary components. The part is able to provide 300 mA of

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

Bottom View

FC SUFFIX (PB-FREE)

98ASA10787D

8-PIN UDFN

2X2

The 34726 switches at 2.0 MHz to allow the use of small, surface

mount inductors and capacitors to save precious board space.

The 34726 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

Package

Device

Features

Range (T )

• 94% peak efficiency

• 2.0 MHz switching frequency

• 2.7 to 5.5 V input voltage range

Refer to Table 1,

Device Variations

-25°C to 85°C

8-UDFN

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

• Fixed output voltage options from 0.8 to 3.3 V

• 65 μA quiescent current during sleepy Z-mode

• 300 mA maximum continuous output current

• Internal 2.0 ms soft start

• Thermal and over-current protection

• 0.1 μA quiescent current in shutdown (disabled)

• Ultra thin 2x2 UDFN package

• Pb-free packaging designated by suffix code FC

34726

2.7 ~ 5.5V

0.8 - 3.3V *

300mA

VIN

C_IN

C_OUT

OFF

*Programmable

See table 1

GND

Figure 1. 34726 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MC34726EFC相关器件

型号	品牌	获取价格	描述	数据表
MC34727AFC	FREESCALE	获取价格	600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
MC34727AFCR2	FREESCALE	获取价格	600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
MC34727AFCR2	NXP	获取价格	SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, 0.65 MM HEIGHT, 0.50 MM
MC34727BFC	FREESCALE	获取价格	600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
MC34727BFCR2	FREESCALE	获取价格	600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
MC34727BFCR2	NXP	获取价格	SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, 0.65 MM HEIGHT, 0.50 MM
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

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