参数资料
型号: MIC2295YD5 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 TSOT23-5
标准包装: 1
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: 1.2MHz
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: SOT-23-5 细型,TSOT-23-5
包装: 标准包装
供应商设备封装: TSOT-23-5
产品目录页面: 1093 (CN2011-ZH PDF)
其它名称: 576-1080-6
MIC2295
High Power Density 1.2A
Boost Regulator
General Description
Features
The MIC2295 is a 1.2Mhz, PWM dc/dc boost switching
regulator available in low profile Thin SOT23 and 2mm x
2mm MLF? package options. High power density is
achieved with the MIC2295’s internal 34V / 1.2A switch,
allowing it to power large loads in a tiny footprint.
The MIC2295 implements constant frequency 1.2MHz
PWM current mode control. The MIC2295 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.
The MIC2295 is available in a low-profile Thin SOT23 5-
lead package and a 2mm x2mm 8-lead MLF? leadless
package. The 2mm x 2mm MLF? package option has an
output over-voltage protection feature.
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2.5V to 10V input voltage range
Output voltage adjustable to 34V
1.2A switch current
1.2MHz PWM operation
Stable with small size ceramic capacitors
High efficiency
Low input and output ripple
<1μA shutdown current
UVLO
Output over-voltage protection (MIC2295BML)
Over temperature shutdown
Thin SOT23-5 package option
2mm x 2mm leadless 8-lead MLF? package option
–40 o C to +125 o C junction temperature range
The MIC2295 has an operating junction temperature range
of –40 ° C to +125 ° C
Applications
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Organic EL power supplies
3.3V to 5V/500mA conversion
TFT-LCD bias supplies
Flash LED drivers
Positive and negative output regulators
SEPIC converters
Positive to negative Cuk converters
12V supply for DSL applications
Multi-output dc/dc converters
10 μ H
MIC2295BML
V OUT
15V/100mA
L1
10 μ H
MIC2295 BD5
V OUT
5V/500mA
V IN
1-Cell
Li Ion
3V to 4.2V
C1
2.2 μ F
VIN
EN
AGND
SW
OVP
FB
PGND
R2
4.53K
R1
49.9k
2.2 μ F
V IN
1-Cell
Li Ion
C1
2.2 μ F
VIN SW
GND
EN FB
R1
10k
R2
3.3k
10 μ F
MLF and Micro LeadFrame is a trademark of Amkor Technology
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 ( 408 ) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
April 2005
M9999-042605
(408) 955-1690
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