- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382829 > AAT2503IZL-BAA-T1 (Advanced Analog Technology,lnc.) Adjustable 3-Channel Regulator PDF資料下載
參數(shù)資料
| 型號： | AAT2503IZL-BAA-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | Adjustable 3-Channel Regulator |
| 中文描述： | 可調(diào)節(jié)的3通道穩(wěn)壓器 |
| 文件頁數(shù)： | 12/23頁 |
| 文件大?。?/td> | 1022K |
| 代理商： | AAT2503IZL-BAA-T1 |
AAT2503
Adjustable 3-Channel Regulator
12
2503.2007.04.1.1
Functional Block Diagram
EN
VLDOA
OUTB
MODE/SYNC
POK
LX
Logic
DH
DL
PGND
VIN
FB
AGND
OUTA
VLDOB
FBB
FBA
ENA
ENB
VP
Control
Logic
Voltage
Reference
Voltage
Reference
94%
V
REF
Err.
Amp.
Err.
Amp.
E
A
Over-Current
Protection
O
P
Functional Description
The AAT2503 is a high performance power man-
agement IC comprised of a step-down converter
and two linear regulators. The step-down convert-
er operates in both fixed and variable frequency
modes for high efficiency performance. The switch-
ing frequency is 2MHz, minimizing the size of the
inductor. The converter requires only three external
components (C
IN
, C
OUT
, and L). The LDOs can
deliver up to 150mA each. Each regulator has
independent input voltage and enable pins and
operates with ceramic capacitors.
Switch-Mode Step-Down Converter
The switching regulator is a monolithic step-down
converter operating with input voltage range of 2.7V
to 5.5V. Power devices are sized for 800mA current
capability and achieve over 95% efficiency. PFM
operation maintains high efficiency under light load
conditions (typically <50mA). The MODE/SYNC pin
allows an optional "PWM Only" mode. This main-
tains constant frequency and low output ripple
across all load conditions. Alternatively, the IC can
be synchronized to an external clock via the
MODE/SYNC input. External synchronization is
maintained between 1MHz and 3MHz. It consumes
30μA of typical no load quiescent current, making it
also ideal for light load applications. The oscillator
operates at 2MHz, minimizing the cost and size of
external components.
A logic low on the EN pin shuts the converter down
and makes it consume less than 1μA of current.
Soft start increases the inductor current limit point
in discrete steps when the input voltage or enable
input is applied. It limits the current surge seen at
the input and eliminates output voltage overshoot.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT2506IWP-AI-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2506IWP-AN-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2506IWP-AQ-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2506IWP-AW-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2511 | Dual 600mA, 1MHz Step-Down DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT2504 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator |
| AAT2504_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator |
| AAT2504IZL-BAA-T1 | 制造商:Skyworks Solutions Inc 功能描述:VOLTAGE REGULATOR |
| AAT2505 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Dual Channel, Step-Down Converter/Linear Regulator |
| AAT2505IWP-AO-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Dual Channel, Step-Down Converter/Linear Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。