参数资料
型号: MIC39300-2.5BU TR
厂商: Micrel Inc
文件页数: 1/13页
文件大小: 0K
描述: IC REG LDO 2.5V 3A TO263
标准包装: 750
稳压器拓扑结构: 正,固定式
输出电压: 2.5V
输入电压: 最高 16V
电压 - 压降(标准): 0.385V @ 3A
稳压器数量: 1
电流 - 输出: 3A(最小)
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-263-4,D²Pak(3 引线+接片),TO-263AA
供应商设备封装: TO-263-3
包装: 带卷 (TR)
其它名称: MIC39300-2.5BUTR
MIC39300/39301/39302
3A, Low-Voltage Low-Dropout Regulator
General Description
Features
PNP
pass element, the MIC39300/1/2 offers extremely
The MIC39300, MIC39301 and MIC39302 are 3.0A low-
dropout linear voltage regulators that provide a low
voltage, high-current output with a minimum of external
components. Utilizing Micrel’s proprietary Super β eta
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low dropout (typically 385mV at 3.0A) and low ground
current (typically 36mA at 3.0A).
The MIC39300/1/2 is ideal for PC add-in cards that need
to convert from standard 3.3V to 2.5V or 2.5V to 1.8V. A
guaranteed maximum dropout voltage of 500mV over all
operating conditions allows the MIC39300/1/2 to provide
2.5V from a supply as low as 3V, and 1.8V from a supply
as low as 2.5V. The MIC39300/1/2 also has fast transient
response for heavy switching applications. The device
requires only 47μF of output capacitance to maintain
stability and achieve fast transient response.
The MIC39300/1/2 is fully protected with overcurrent
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3.0A minimum guaranteed output current
550mV maximum dropout voltage over temperature
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V conversion
1% initial accuracy
Low ground current
Current limiting and Thermal shutdown
Reversed-battery protection
Reversed-leakage protection
Fast transient response
TO-263 (D 2 Pak) and TO-220 packaging
TTL/CMOS compatible enable pin (MIC39301/2 only)
Error flag output (MIC39301 only)
Adjustable output (MIC39302 only)
limiting, thermal shutdown, reversed-battery protection,
reversed-leakage protection, and reversed-lead insertion.
Applications
The MIC39301 offers a TTL-logic compatible enable pin
and an error flag that indicates under voltage and over
current conditions. Offered in fixed voltages, the
MIC39300/1 comes in the TO-220 and TO-263 (D 2 Pak)
packages and is an ideal upgrade to older, NPN-based
linear voltage regulators. The MIC39302 adjustable option
allows programming the output voltage anywhere between
1.24V and 15.5V and is offered in a 5-Pin, TO-263 (D 2 Pak)
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LDO linear regulator for PC add-in cards
High-efficiency linear power supplies
SMPS post regulator
Multimedia and PC processor supplies
Low-voltage microcontrollers
StrongARM? processor supply
package.
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Typical Application
MIC39300
MIC39301
MIC39302 Adjustable Output Application
(*See Minimum Load Current Section)
**See Thermal Load Current Section
Super β eta PNP is a registered trademark of Micrel, Inc.
StrongARM is a trademark of Advanced RISC Machines, Ltd
Micrel Inc. ? 2180 Fortune Drive ? San Jose, CA 95131 ? USA ? tel +1 (408) 944-0800 ? fax + 1 (408) 474-1000 ? http://www.micrel.com
October 2009
M9999-102309-A
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