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AAT2504IZL-BAA-T1 PDF预览

AAT2504IZL-BAA-T1

更新时间: 2024-02-08 02:18:55
品牌 Logo 应用领域
ANALOGICTECH 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
22页 944K
描述
Adjustable 3-Channel Regulator

AAT2504IZL-BAA-T1 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:,Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.84Is Samacsys:N
调节器类型:ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATORBase Number Matches:1

AAT2504IZL-BAA-T1 数据手册

 浏览型号AAT2504IZL-BAA-T1的Datasheet PDF文件第2页浏览型号AAT2504IZL-BAA-T1的Datasheet PDF文件第3页浏览型号AAT2504IZL-BAA-T1的Datasheet PDF文件第4页浏览型号AAT2504IZL-BAA-T1的Datasheet PDF文件第5页浏览型号AAT2504IZL-BAA-T1的Datasheet PDF文件第6页浏览型号AAT2504IZL-BAA-T1的Datasheet PDF文件第7页 
AAT2504  
Adjustable 3-Channel Regulator  
SystemPower  
General Description  
Features  
The AAT2504 is a three-channel regulator consist-  
ing of a step-down converter with an input voltage  
range of 2.7V to 5.5V plus two low dropout (LDO)  
linear regulators. The two LDOs have an input volt-  
age range of 1.8V to 5.5V, making them well-suited  
for post regulating from the step-down converter.  
800mA Buck Converter  
— VIN Range: 2.7V to 5.5V  
— VOUT Range: 0.9V to VIN, Adjustable  
— High Efficiency: 95%  
— 2MHz Switching Frequency  
— Synchronizable to External Clock  
— Internal Soft Start  
Two 300mA Linear Regulators  
— VIN Range: 1.8V to 5.5V  
— Low Dropout Voltage  
— High Output Accuracy: 1.5%  
Low Total Quiescent Current IQ (80μA)  
Independent Enable Pins  
The step-down converter optimizes power efficiency  
throughout the load range. Pulling the MODE/SYNC  
pin high enables "PWM Only" operation, maintaining  
constant frequency and low output ripple across the  
operating range. Alternatively, the converter may be  
synchronized to an external clock to the MODE/  
SYNC pin. The step-down converter delivers up to  
800mA of output current. The switching frequency is  
2MHz, minimizing the size of external components.  
Over-Temperature Protection  
QFN34-20 Package  
-40°C to +85°C Temperature Range  
The two LDOs (LDOA/LDOB) have independent  
inputs and are capable of delivering up to 300mA  
each. A Power-OK (POK) function provides an open  
drain output signal when LDOA is within regulation.  
Both LDOs feature low quiescent current and a low  
dropout voltage. The output voltages for both LDOs  
are adjustable to as low as 0.6V. The linear regula-  
tors have independent Enable pins. Typical no load  
quiescent current is a low 80µA when the step-  
down converter and LDOs are enabled.  
Applications  
Cellular Phones  
Digital Cameras  
Handheld Instruments  
Microprocessor/DSP Core/IO Power  
PDAs and Handheld Computers  
The AAT2504 is available in a Pb-free 3x4mm  
QFN34-20 package and is rated over the -40°C to  
+85°C temperature range.  
Typical Application  
L
LX  
VOUT (Step-down)  
AAT2504  
FB  
VIN  
R1  
VIN  
OUTA  
OUTA  
R1A  
100kΩ  
COUT  
VLDOA  
VLDOB  
POK  
FBA  
POK  
OUTB  
VP  
OUTB  
FBB  
R1B  
R2B  
R2A  
R2  
MODE/SYNC  
ENA  
2.2μF  
2.2μF  
PGND  
AGND  
ENB  
EN  
2504.2007.06.1.0  
1

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