REG711-25 50mA 开关电容 DC/DC 转换器

REG711-25 描述

The REG711 is a switched capacitor voltage converter, which produces a regulated, low ripple output voltage from an unregulated input voltage. A wide input supply voltage of 1.8V to 5.5V makes the REG711 ideal for a variety of battery sources, such as single cell Li-Ion, or two and three cell Nickel or Alkaline based chemistries.

The input voltage may vary above and below the output voltage and the output will remain in regulation. It works equally well for step up or down without the need for an inductor, providing low EMI DC/DC conversion. The high switching frequency allows the use of small surface-mount capacitors, saving board space and reducing cost. The REG711 is thermally protected and current limited, protecting the load and the regulator during fault conditions.

	REG711-25	REG711-27	REG711-3	REG711-33	REG711-5
Iout(Max)(A)	0.05	0.05	0.05	0.05	0.05
Iq(Typ)(mA)	0.06	0.06	0.06	0.06	0.06
Switching Frequency(Max)(kHz)	1000	1000	1000	1000	1000
Vin(Min)(V)	1.8	1.8	1.8	1.8	2.7
Vin(Max)(V)	5.5	5.5	5.5	5.5	5.5
Vout(Min)(V)	2.5	2.7	3	3.3	5
Vout(Max)(V)	2.5	2.7	3	3.3	5
Preset Vout(V)	2.5	2.7	3	3.3	5
Efficiency(Typ)(%)	90	90	90	90	90
Topology	Boost/Buck	Boost/Buck	Boost/Buck	Boost/Buck	Boost/Buck
Approx. Price (US$)	0.70 \| 1ku	0.70 \| 1ku	0.80 \| 1ku	0.80 \| 1ku	0.70 \| 1ku
Pin/Package	8MSOP	8MSOP	8MSOP	8MSOP	8MSOP

REG711-25 特性

WIDE INPUT RANGE: 1.8V TO 5.5V 5V VERSION: 2.7V TO 5.5V
AUTOMATIC STEP-UP/STEP-DOWN OPERATION
LOW INPUT CURRENT RIPPLE
LOW OUTPUT VOLTAGE RIPPLE
MINIMUM NUMBER OF EXTERNAL COMPONENTS\x97NO INDUCTORS
1MHz INTERNAL OSCILLATOR ALLOWS SMALL CAPACITORS
"SHUTDOWN" MODE
THERMAL AND CURRENT LIMIT PROTECTION
FIVE OUTPUT VOLTAGES AVAILABLE: 5.0V, 3.3V, 3.0V, 2.7V, 2.5V
THIN, SMALL PACKAGE: MSOP-8
APPLICATIONS
- SMART CARD READERS
- CELLULAR PHONES
- SIM CARD SUPPLIES
- PORTABLE COMMUNICATION DEVICES
- PERSONAL DIGITAL ASSISTANTS
- MODEMS
- NOTEBOOK AND PALM-TOP COMPUTERS
- ELECTRONIC GAMES
- HANDHELD METERS

REG711-25 芯片订购指南

器件	状态	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
REG711EA-2.5/250	ACTIVE	0.80 \| 1ku	MSOP (DGK) \| 8	250 \| SMALL T&R	C11G
REG711EA-2.5/250G4	ACTIVE	0.80 \| 1ku	MSOP (DGK) \| 8	250 \| SMALL T&R	C11G
REG711EA-2.5/2K5	ACTIVE	0.70 \| 1ku	MSOP (DGK) \| 8	2500 \| LARGE T&R	C11G
REG711EA-2.5/2K5G4	ACTIVE	0.70 \| 1ku	MSOP (DGK) \| 8	2500 \| LARGE T&R	C11G

REG711-25 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
REG711EA-2.5/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		REG711EA-2.5/250
REG711EA-2.5/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	REG711EA-2.5/250G4	REG711EA-2.5/250G4
REG711EA-2.5/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		REG711EA-2.5/2K5
REG711EA-2.5/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	REG711EA-2.5/2K5G4	REG711EA-2.5/2K5G4

REG711-25 应用技术支持与电子电路设计开发资源下载

REG711-25 数据资料 dataSheet 下载.PDF
TI 德州仪器非隔离式开关 DC/DC 调节器选型与价格参考 . xls
Dual MOSFET Driver (PDF 498 KB)
全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
Understanding Boost Power Stages In Switchmode Power Supplies (PDF 149 KB)
Understanding Buck Power Stages In Switchmode Power Supplies (PDF 173 KB)
标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
所选封装材料的热学和电学性质 (PDF 645 KB)
高速数据转换 (PDF 1967 KB)

REG711-25 相关工具

名称	型号	公司	工具/软件类型
REG711-232 评估模块	REG711EVM-232	Texas Instruments	开发电路板/EVM

REG711-25 参考设计

说明	型号	公司
Spartan™-3 电源管理解决方案（设计 1）	PR213	Texas Instruments
Spartan™-II 电源管理解决方案（设计 3）	PR211	Texas Instruments
Spartan™-IIE 电源管理解决方案（设计 3）	PR212	Texas Instruments