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US1176CM 参数 Datasheet PDF下载

US1176CM图片预览
型号: US1176CM
PDF下载: 下载PDF文件 查看货源
内容描述: 7.5A超低压差正,可调式稳压器,具有关断输入 [7.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR WITH SHUTDOWN INPUT]
分类和应用: 稳压器输入元件
文件页数/大小: 5 页 / 39 K
品牌: UNISEM [ UNISEM ]
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US1176
7.5A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR WITH SHUTDOWN INPUT
PRELIMINARY DATASHEET
FEATURES
Guaranteed
<TBDV Dropout at 7.5A
Fast Transient Response
1%
Voltage Reference Initial Accuracy
Built-in Thermal Shutdown
DESCRIPTION
The US1176 product is a
7.5A regulator with extremely
low dropout voltage using a proprietary Bipolar pro-
cess that achieves comparable equivalent on re-
sistance to that of discrete MOSFETs.
The US1176
also provides a convenient Shutdown pin that allows the
regulator to be shutdown and reduce the input current
consumption. Unlike the PNP type regulators this de-
vice does not have high quiecent current during the start
up mode making it ideal for applications where there is
limited current capability such operation from the 5V
Standby supply of the computer power supply.One ap-
plication is the new generation of the RDRAM memory
that needs to provide 2.5V from 3.3V input and be able
to operate from 5VSB as well.
APPLICATIONS
3.3V to 2.7V Intel I740 chip set.
TYPICAL APPLICATION
3.3V
C1
Vin
Vin
Vctrl
US1176
Vout
Adj
SD
Vsense
7
6
5
4
3
2
1
2.7V
R1
C3
R2
1176app1-1.1
5V
C2
Q1
SD
Enable
Typical application of US1176 .
PACKAGE ORDER INFORMATION
Tj (
°
C)
0 TO 125
7 PIN PLASTIC
TO263 (M)
US1176CM
7 PIN PLASTIC
POWER FLEX (P)
US1176CP
Rev. 1.1
9/24/99
2-1