参数资料
型号: MIC59300-1.2YME TR
厂商: Micrel Inc
文件页数: 1/15页
文件大小: 0K
描述: IC REG LDO 1.2V 3A 8SOIC
标准包装: 2,500
稳压器拓扑结构: 正,固定式
输出电压: 1.2V
输入电压: 最高 3.8V
电压 - 压降(标准): 0.205V @ 3A
稳压器数量: 1
电流 - 输出: 3A
电流 - 限制(最小): 3.3A
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm Width)裸露焊盘
供应商设备封装: 8-SOIC-EP
包装: 带卷 (TR)
MIC59300
Ultra High Speed 3A LDO
General Description
The MIC59300 is a high-bandwidth, low-dropout, 3A linear
voltage regulator ideal for powering core voltages of low-
power microprocessors. The MIC59300 implements a dual
supply con ? guration allowing for a very low output
impedance and a very fast transient response.
The MIC59300 requires a bias input supply and a main
input supply, allowing for ultra-low input voltages on the
main supply rail. The device operates from an input supply
of 1.0V to 3.8V and bias supply between 3V and 5.5V. The
MIC59300 offers ? xed output voltages and adjustable
output voltages down to 0.5V.
The MIC59300 requires a minimum output capacitance for
stability, working optimally with small ceramic capacitors.
The MIC59300 is available in a 5-pin TO-263 and an 8-pin
EPAD SOIC package and its junction temperature range is
–40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
? Input voltage range:
– V IN = 1.0V to 3.8V
– V BIAS = 3.0V to 5.5V
? Stable with 1μF ceramic capacitor
? ±1% initial tolerance
? Maximum dropout voltage of 500mV over temperature
? Adjustable output voltage down to 0.5V
? Ultra fast transient response
? Excellent line and load regulation specifications
? Logic controlled shutdown option
? Thermal shutdown and current limit protection
? Junction temperature range: –40 ° C to +125 ° C
? TO-263 & 8-pin EPAD SOIC
? Pin Compatible Upgrade to MIC49300
Applications
?
?
?
?
?
?
?
Telecommunications processors
Graphics processors
Computer peripheral cards
Logic IC power supply
SMPS post regulators
Microprocessors
Digital TV’s
_________________________________________________________________________________________________________
Typical Application
MIC59300YME
VIN
CIN=1μF
3, 6
VIN
VOUT
4, 5
VOUT
(Ceramic)
R1
VBIAS
EN
CBIAS=1μF
(Ceramic)
2
1
VBIAS
EN
GND
8
ADJ
EP
9
7
R2
COUT=1μF
(Ceramic)
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 2009
M9999-010809-A
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