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AAT3222IGV-1.8-T1 参数 Datasheet PDF下载

AAT3222IGV-1.8-T1图片预览
型号: AAT3222IGV-1.8-T1
PDF下载: 下载PDF文件 查看货源
内容描述: 150毫安纳安级™ LDO线性稳压器 [150mA NanoPower™ LDO Linear Regulator]
分类和应用: 稳压器电源电路光电二极管
文件页数/大小: 16 页 / 222 K
品牌: ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
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PRODUCT DATASHEET
AAT3221/2
PowerLinear
TM
General Description
The AAT3221 and AAT3222 PowerLinear NanoPower low
dropout (LDO) linear regulators are ideal for portable
applications where extended battery life is critical.
These devices feature extremely low quiescent current,
typically 1.1μA. Dropout voltage is also very low, typi-
cally less than 200mV at the maximum output current of
150mA. The AAT3221/2 have an enable pin feature
which, when asserted, will enter the LDO regulator into
shutdown mode, removing power from its load and offer-
ing extended power conservation capabilities for portable
battery-powered applications.
The AAT3221/2 have output short-circuit and over-cur-
rent protection. In addition, the devices also have an
over-temperature protection circuit, which will shut
down the LDO regulator during extended over-current
events. The devices are available with active high or
active low enable input.
The AAT3221 and AAT3222 are available in Pb-free,
space-saving 5-pin SOT23 packages. The AAT3221 is
also available in a Pb-free, 8-pin SC70JW package. The
device is rated over the -40°C to +85°C temperature
range. Since only a small, 1μF ceramic output capacitor
is recommended, often the only space used is that occu-
pied by the AAT3221/2 itself. The AAT3221/2 provide a
compact and cost-effective voltage conversion solution.
The AAT3221 and AAT3122 are similar to the AAT3220,
with the exception that they offer further power savings
with an enable pin.
150mA NanoPower™ LDO Linear Regulator
Features
1.1μA Quiescent Current
Low Dropout: 200mV (typical)
Guaranteed 150mA Output
High Accuracy: ±2%
Current Limit Protection
Over-Temperature Protection
Extremely Low Power Shutdown Mode
Low Temperature Coefficient
Factory-Programmed Output Voltages
1.5V to 3.5V
Stable Operation With Virtually Any Output Capacitor
Type
Active High or Low Enable Pin
4kV ESD
5-Pin SOT23 or 8-Pin SC70JW Package
-40°C to +85°C Temperature Range
Applications
Cellular Phones
Digital Cameras
Handheld Electronics
Notebook Computers
PDAs
Portable Communication Devices
Remote Controls
Typical Application
INPUT
IN
OUT
OUTPUT
AAT3221/2
C
IN
1μF
ENABLE
(ENABLE)
EN
(EN)
GND
C
OUT
1μF
GND
GND
3221.2007.11.1.12
www.analogictech.com
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