电子元器件数据表 IC PDF查询
English 中文版
  品牌   我要上传
型号:  
描述:
MVL-514TG  MVL-591HG  MVL-514HB  MVL-401Y  MVL-501UR  MVL-503DR  MVL-511HR  MVL-504B  MVL-591SR  MVL-511UR  
ML4961 Adjustable Output Low Voltage Boost Regulator with Detect
型号:   ML4961
PDF文件: 下载PDF文件   鼠标右键选目标另存为
网页直接浏览   不需安装PDF阅读软件
在线打开PDF文件   需安装PDF阅读软件
描述:   Adjustable Output Low Voltage Boost Regulator with Detect
文件大小 :   152 K    8 页
Logo:   
品牌   MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
购买 :   
  浏览型号ML4961的Datasheet PDF文件第2页 浏览型号ML4961的Datasheet PDF文件第3页 浏览型号ML4961的Datasheet PDF文件第4页 浏览型号ML4961的Datasheet PDF文件第5页 浏览型号ML4961的Datasheet PDF文件第6页 浏览型号ML4961的Datasheet PDF文件第7页 浏览型号ML4961的Datasheet PDF文件第8页  
100%
October 1996
ML4961
Adjustable Output Low Voltage
Boost Regulator with Detect
GENERAL DESCRIPTION
The ML4961 is a boost regulator designed for DC to DC
conversion in 1 to 3 cell battery powered systems. The
combination of BiCMOS process technology, internal
synchronous rectification, variable frequency operation,
and low supply current make the ML4961 ideal for 1 cell
applications. The ML4961 is capable of start-up with input
voltages as low as 1V, and the output voltage can be set
anywhere between 2.5V and 6V by an external resistor
divider connected to the SENSE pin.
An integrated synchronous rectifier eliminates the need for
an external Schottky diode and provides a lower forward
voltage drop, resulting in higher conversion efficiency. In
addition, low quiescent battery current and variable
frequency operation result in high efficiency even at light
loads. The ML4961 requires a minimum number of
external components to build a very small adjustable
regulator circuit capable of achieving conversion
efficiencies in excess of 90%.
The circuit also contains a
RESET
output which goes low
when the IC can no longer function due to low input
voltage, or when the DETECT input drops below 200mV.
FEATURES
s
s
s
s
s
s
Guaranteed full load start-up and operation at 1V input
Pulse Frequency Modulation and Internal Synchronous
Rectification for high efficiency
Minimum external components
Low ON resistance internal switching FETs
Micropower operation
Adjustable output voltage (2.5V to 6V)
BLOCK DIAGRAM
L1
C
IN
*
1
V
IN
6
V
L
V
OUT
5
C
FF
*
+
R1
*R
A
DETECT
4
+
*R
B
+
UVLO
BOOST
CONTROL
V
REF
PWR
GND
8
RESET
7
SENSE
3
C
OUT
R2
GND
2
*OPTIONAL
TO MICROPROCESSOR
1
首页 - - 友情链接
Copyright© 2001 - 2014 ICPDF All Rights Reserved ICPDF.COM

粤公网安备 44030402000629号


粤ICP备13051289号-7