参数资料
型号: ISL80121IR50Z
厂商: Intersil
文件页数: 1/12页
文件大小: 0K
描述: IC REG LDO 5V 1A 10DFN
标准包装: 100
稳压器拓扑结构: 正,固定式
输出电压: 5V
输入电压: 最高 6V
电压 - 压降(标准): 0.09V @ 1A
稳压器数量: 1
电流 - 输出: 1A(最小值)
电流 - 限制(最小): 660mA
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
供应商设备封装: 10-DFN(3x3)
包装: 管件
1A Ultra Low Dropout Linear Regulator with
Programmable Current Limiting
ISL80121-5
The ISL80121-5 is a low dropout voltage, single output LDO with
programmable current limiting. The ISL80121-5 operates from
input voltages of 5V to 6V with a nominal output voltage of 5V.
Other custom voltage options are available upon request.
A sub-micron BiCMOS process is utilized for this product family to
deliver the best in class analog performance and overall value.
The programmable current limiting improves system reliability of
end applications. An external capacitor on the soft-start pin
provides an adjustable soft-starting ramp. The ENABLE feature
allows the part to be placed into a low quiescent current
shutdown mode.
This BiCMOS LDO will consume significantly lower quiescent
current as a function of load compared to bipolar LDOs, which
translates into higher efficiency and packages with smaller
footprints. Quiescent current is modestly compromised to
achieve a very fast load transient response.
TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS
Features
? ±1.8% V OUT Accuracy Guaranteed Over Line, Load and
T J = -40°C to +125°C
? Very Low 130mV Dropout Voltage at V IN = 5.0V
? High Accuracy Current Limit Programmable up to 1.75A
? Very Fast Transient Response
? 210μV RMS Output Noise
? Power-Good Output
? Programmable Soft-Start
? Over-Temperature Protection
? Small 10 Ld DFN Package
? USB devices
? Telecommunications and Networking
? Medical Equipment
PART NUMBER
ISL80101-ADJ
ISL80101
PROGRAMMABLE
I LIMIT
No
No
I LIMIT
(DEFAULT)
1.75A
1.75A
ADJ or FIXED
V OUT
ADJ
1.8V, 2.5V,
? Instrumentation Systems
? Routers and Switchers
? Gaming
3.3V, 5.0V
ISL80101A
ISL80121-5
Yes
Yes
1.62A
0.75A
ADJ
5.0V
Typical Applications
5.4V ±10%
V IN
C IN
10μF
10
9
V IN
V IN
ISL80121-5
V OUT
V OUT
1
2
5.0V ±1.8%
V OUT
C OUT
10μF
5.4V ±10%
V IN
C IN
10μF
10
9
V IN
V IN
ISL80121-5
V OUT
V OUT
1
2
R SENSE
10 ?
C OUT
10μF
5.0V ±1.8%
V OUT
OFF
ON
8
7
I SET
ENABLE
SENSE
PG
3
4
R PG
100k ?
OFF
ON
R SET
10k ?
8
7
I SET
ENABLE
SENSE
PG
3
4
R PG
100k ?
C SS
6
SS
GND
5
C SS
6
SS
GND
5
I LIMIT = 0.75 + -------------------------------------
I LIMIT = 0.75A
(DEFAULT)
2.9
R SET ( k Ω )
June 22, 2012
FN7713.5
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2010-2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners
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