参数资料
| 型号： | MIC47150WD TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.5A TO-252-5 |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 可调至 0.9V |
| 输入电压： | 1.4 V ~ 6.5 V |
| 电压 - 压降（标准）： | 0.28V @ 1.5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A |
| 电流 - 限制（最小）： | 1.6A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-6，DPak（5 引线 + 接片） |
| 供应商设备封装： | TO-252-5 |
| 包装： | 标准包装 |
| 其它名称： | 576-3616-6 |
MIC47150
1.5A, Low Voltage, Adjustable, High-
Bandwidth LDO Regulator with Dual Input
Supplies
General Description
The MIC47150 is a high-bandwidth, low-dropout, 1.5A volt-
age regulator ideal for powering core voltages of low-
power microprocessors. The MIC47150 implements a dual
supply con ? guration allowing for very low output
impedance and very fast transient response.
The MIC47150 requires a bias input supply between 3V
and 6.5V for proper operation. The main input supply rail
operates from 1.4V to 6.5V that allows for adjustable
output voltages down to 0.9V.
The MIC47150 requires a minimum of 1μF output
capacitance for stability, and optimal operation is achieved
with small ceramic capacitors.
The MIC47150 is available in a 5-pin power D-Pak
package (TO-252) with an operating temperature range of
–40°C to +125°C.
Datasheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
? Input Voltage Range:
– V IN : 1.4V to 6.5V
– V BIAS : 3.0V to 6.5V
? Stable with 1μF ceramic capacitor
? ±1% initial tolerance
? Maximum dropout voltage (V IN –V OUT ) of 500mV
over temperature
? Adjustable output voltage down to 0.9V
? Ultra fast transient response (Up to 10MHz bandwidth)
? Excellent line and load regulation specifications
? Power D-Pak package (TO-252)
? Thermal shutdown and current-limit protection
? Junction temperature range: –40°C to +125°C
Applications
?
?
?
?
?
?
Graphics processors
PC add-in cards
Microprocessor core voltage supply
Low voltage digital ICs
High efficiency linear power supplies
SMPS post regulators
__________________________________________________________________________________________
Typical Application*
Figure 1. Typical Application Circuit
*See Thermal Design Section
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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