参数资料
型号: MIC2296BML TR
厂商: Micrel Inc
文件页数: 1/12页
文件大小: 0K
描述: IC REG BOOST ADJ 1.2A 8MLF
标准包装: 5,000
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 最高 34V
输入电压: 2.5 V ~ 10 V
PWM 型: 电流模式
频率 - 开关: 600kHz
电流 - 输出: 1.2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-VFDFN 裸露焊盘,8-MLF?
包装: 带卷 (TR)
供应商设备封装: 8-MLF?(2x2)
其它名称: MIC2296BMLTR
MIC2296BMLTR-ND
MIC2296
High Power Density 1.2A
Boost Regulator
General Description
Features
The MIC2296 is a 600kHz, PWM dc/dc boost switching
regulator available in a 2mm x 2mm MLF ? package option.
High power density is achieved with the MIC2296’s
internal 34V / 1.2A switch, allowing it to power large loads
in a tiny footprint. The MIC2296 is a version of the
MIC2295 1.2MHz, PWM dc/dc boost switching regulator,
that offers improved efficiency resulting from 600kHz
operation.
The MIC2296 implements constant frequency 600kHz
PWM current mode control. The MIC2296 offers internal
compensation that offers excellent transient response and
output regulation performance. The high frequency
operation saves board space by allowing small, low-profile
external components. The fixed frequency PWM scheme
also reduces spurious switching noise and ripple to the
input power source.
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2.5V to 10V input voltage range
Output voltage adjustable to 34V
1.2A switch current
600kHz PWM operation
Stable with small size ceramic capacitors
High efficiency
Low input and output ripple
<1μA shutdown current
UVLO
Output over-voltage protection (MIC2296BML)
Over temperature shutdown
2mm x 2mm leadless 8-pin MLF ? package option
–40 o C to +125 o C junction temperature range
The MIC2296 is available in a low-profile Thin SOT23 5-
pin package and a 2mm x2mm 8-pin MLF ? leadless
package. The 2mm x 2mm MLF ? package option has an
output over-voltage protection feature.
The MIC2296 has an operating junction temperature range
of –40 ° C to +125 ° C
Applications
? Organic EL power supplies
? 3.3V to 5V/500mA conversion
? TFT-LCD bias supplies
? Positive and negative output regulators
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SEPIC converters
Positive to negative Cuk converters
12V supply for DSL applications
Multi-output dc/dc converters
10μH
V OUT
15V/100mA
L1
10μH
V OUT
5V/400mA
1000 pF
VIN
V IN
1-Cell
Li Ion
3V to 4.2V
C1
2.2μF
MIC2296BML
SW
OVP
EN FB
AGND PGND
R2
901
R1
10k
2.2μF
V IN
1-Cell
Li Ion
C1
2.2μF
MIC2296 BD5
VIN SW
EN FB
GND
R1
10k
R2
3.3k
10μF
MLF and Micro LeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
January 2010
M9999-011310
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