参数资料
型号: MIC2570-2YM
厂商: Micrel Inc
文件页数: 1/15页
文件大小: 0K
描述: IC REG BOOST ADJ 1A 8SOIC
标准包装: 95
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 1.3 V ~ 36 V
输入电压: 1.3 V ~ 15 V
频率 - 开关: 20kHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SOIC
其它名称: 576-2191
MIC2570-2YM-ND
MIC2570
General Description
Micrel’s MIC2570 is a micropower boost switching regulator
that operates from two alkaline, two nickel-metal-hydride
cells, or one lithium cell.
The MIC2570 accepts a positive input voltage between 1.3V
and 15V. Its typical no-load supply current is 130μA.
The MIC2570 is available in selectable ?xed output or ad-
justable output versions. The MIC2570-1 can be con?gured
for 2.85V, 3.3V, or 5V by connecting one of three separate
feedback pins to the output. The MIC2570-2 can be con?g-
ured for an output voltage ranging between its input voltage
and 36V, using an external resistor network.
The MIC2570 has a ?xed switching frequency of 20kHz. An
external SYNC connection allows the switching frequency to
be synchronized to an external signal.
The MIC2570 requires only four components (diode, inductor,
input capacitor and output capacitor) to implement a boost
regulator. A complete regulator can be constructed in a 0.6
in 2 area.
All versions are available in an 8-lead SOIC with an operating
range from –40°C to +85°.
Typical Applications
Micrel, Inc.
MIC2570
Two-Cell Switching Regulator
Features
? Operates from a two-cell supply
1.3V to 15V operation
? 130μA typical quiescent current
? Complete regulator ?ts 0.6 in 2 area
? 2.85V/3.3V/5V selectable output voltage (MIC2570-1)
? Adjustable output up to 36V (MIC2570-2)
? 1A current limited pass element
? Frequency synchronization input
? 8-lead SOIC package
Applications
? LCD bias generator
? Glucose meters
? Single-cell lithium to 3.3V or 5V converters
? Two-cell alkaline to ±5V converters
? Two-cell alkaline to –5V converters
? Battery-powered, hand-held instruments
? Palmtop computers
? Remote controls
? Detectors
? Battery Backup Supplies
2.0V –3.1V
2 AA Cells
C1
100μF
10V
L1
47μH
8
IN
MIC2570-1 S W
2.85V
3.3V
5V
SYNC GND
7 2
1
6
5
4
D1
MBRA140
5V/100mA
C2
220μF
10V
C1
2.5V to 4.2V 100μF
1 Li Cell 10V
L1
1 50μH
U1 8
IN
SW
MIC2570
3.3V
S Y N C GND
7 2
1
5
2
C2
100μF
10V
MBRA140
V OU T
3 3.3V/80mA
D1
L1
4
C3
330μF
6.3V
Two-Cell to 5V DC-to-DC Converter
Single-Cell Lithium to 3.3V/80mARegulator
Micrel, Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
August 2007
1
MIC2570
相关PDF资料
PDF描述
VI-BTR-EW-F4 CONVERTER MOD DC/DC 7.5V 100W
ADP2503ACPZ-2.8-R7 IC REG BUCK BST 2.8V .6A 10LFCSP
RCM28DCCH CONN EDGECARD 56POS R/A .156 SLD
RCM28DCCD CONN EDGECARD 56POS R/A .156 SLD
ADP2503ACPZ-4.5-R7 IC REG BUCK BST 4.5V .6A 10LFCSP
相关代理商/技术参数
参数描述
MIC2570-2YM TR 功能描述:直流/直流开关调节器 Two Cell Boost Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
MIC2571-1BMM 功能描述:IC REG BOOST 2.85V/3.3V/5V 8MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP(0.300",7.62mm) 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12
MIC2571-1BMM TR 功能描述:IC REG BOOST 2.85V/3.3V/5V 8MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压(降压) 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP(0.300",7.62mm) 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12
MIC2571-1YMM 功能描述:直流/直流开关调节器 One Cell Boost Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
MIC2571-1YMM TR 功能描述:直流/直流开关调节器 One Cell Boost Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5