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參數(shù)資料
| 型號： | AAT3218IGV-2.85-T1 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 150mA MicroPower⑩ High Performance LDO |
| 中文描述： | 150mA的微功耗高性能的LDO⑩ |
| 文件頁數(shù)： | 8/18頁 |
| 文件大小： | 321K |
| 代理商： | AAT3218IGV-2.85-T1 |
AAT3218
150mA MicroPower High Performance LDO
8
3218.2004.02.1.0
Functional Description
The AAT3218 is intended for LDO regulator applica-
tions where output current load requirements range
from no load to 150mA.
The advanced circuit design of the AAT3218 has
been specifically optimized for very fast start-up and
shutdown timing. This proprietary CMOS LDO has
also been tailored for superior transient response
characteristics. These traits are particularly important
for applications, which require fast power supply tim-
ing, such as GSM cellular telephone handsets.
The high-speed turn-on capability of the AAT3218 is
enabled through the implementation of a fast start
control circuit, which accelerates the power up behav-
ior of fundamental control and feedback circuits with-
in the LDO regulator.
Fast turn-off time response is achieved by an active
output pull down circuit, which is enabled when the
LDO regulator is placed in the shutdown mode. This
active fast shutdown circuit has no adverse effect on
normal device operation.
The AAT3218 has very fast transient response char-
acteristics, which is an important feature for applica-
tions where fast line and load transient response is
required. This rapid transient response behavior is
accomplished through the implementation of an
active error amplifier feedback control. This propri-
etary circuit design is unique to this MicroPower
LDO regulator.
The LDO regulator output has been specifically opti-
mized to function with low cost, low ESR ceramic
capacitors. However, the design will allow for opera-
tion over a wide range of capacitor types.
A bypass pin has been provided to allow the addition
of an optional voltage reference bypass capacitor to
reduce output self noise and increase power supply
ripple rejection. Device self noise and PSRR will be
improved by the addition of a small ceramic capacitor
in this pin. However, increased values of C
BYPASS
may slow down the LDO regulator turn-on time.
This LDO regulator has complete short circuit and
thermal protection. The integral combination of these
two internal protection circuits give the AAT3218 a
comprehensive safety system to guard against
extreme adverse operating conditions. Device
power dissipation is limited to the package type and
thermal dissipation properties. Refer to the thermal
considerations discussion in the section for details on
device operation at maximum output current loads.
Functional Block Diagram
Error
Amplifier
Over-Current
Protection
Over-
Temperature
Protection
Voltage
Reference
+
-
IN
EN
BYP
OUT
GND
Active
Feedback
Control
Fast
Start
Control
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT3218IJS-1.4-T1 | 150mA MicroPower⑩ High Performance LDO |
| AAT3218IGV-1.8-T1 | 150mA MicroPower⑩ High Performance LDO |
| AAT3218IJS-1.8-T1 | Multiconductor Cable; Number of Conductors:3; Conductor Size AWG:16; No. Strands x Strand Size:65 x 34; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No; Temperature Max:105 C RoHS Compliant: Yes |
| AAT3218IGV-1.9-T1 | Paired Cable; Number of Conductors:8; Conductor Size AWG:23; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:4; Approval Categories:CMR Rated; Conductor Material:Copper; Features:Augmented Category 6, CMR Rated RoHS Compliant: Yes |
| AAT3218IJS-1.9-T1 | Paired Cable; Number of Conductors:8; Conductor Size AWG:23; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:4; Approval Categories:CMR Rated; Features:Augmented Category 6, CMR Rated; Jacket Color:Blue RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3218IGV-3.0-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:150mA MicroPower⑩ High Performance LDO |
| AAT3218IGV-3.3-T1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA MicroPower⑩ High Performance LDO |
| AAT3218IGV-3.5-T1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:150mA MicroPower⑩ High Performance LDO |
| AAT3218IJS-1.25-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:150mA MicroPower⑩ High Performance LDO |
| AAT3218IJS-1.2-T1 | 功能描述:低壓差穩(wěn)壓器 - LDO 150mA Fast Transient Low Noise LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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