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參數資料
| 型號： | AAT2500IWP-AP-T1 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 1MHz Step-Down Converter/LDO Regulator |
| 中文描述： | 1MHz的降壓轉換器/ LDO穩(wěn)壓器 |
| 文件頁數： | 1/26頁 |
| 文件大?。?/td> | 881K |
| 代理商： | AAT2500IWP-AP-T1 |
AAT2500
1MHz Step-Down Converter/LDO Regulator
2500.2006.05.1.16
1
SystemPower
Typical Application
AAT2500 Step-Down Converter Efficiency
Load Current (mA)
E
60
65
70
75
80
85
90
95
100
0.1
1
10
100
1000
V
IN
= 3.3V
1.8V
2.5V
4.7
μ
H
L1
4.7
μ
F
C1
2.2
μ
F
C4
10
μ
F
C3
10nF
C5
PGND
1
LX
2
VP
3
VCC
4
ENLDO
9
EN
10
FB
11
SGND
12
VLDO
5
OUT
6
GND
8
BYP
7
AAT2500
U1
L1 Sumida CDRH3D16-4R7
C1 Murata GRM219R61A475KE19
C3 Murata GRM21BR60J106KE19
V
IN
= 2.7V to 5.5V
3.3V at 300mA
2.5V at 400mA
General Description
The AAT2500 is a member of AnalogicTech's Total
Power Management IC (TPMIC) product fam-
ily. It is a low dropout (LDO) linear regulator and a
step-down converter with an input voltage range of
2.7V to 5.5V, making it ideal for applications with
single lithium-ion/polymer batteries.
The LDO has an independent input and is capable
of delivering up to 300mA. The linear regulator has
been designed for high-speed turn-on and turn-off
performance, fast transient response, and good
power supply rejection ratio (PSRR). Other fea-
tures include low quiescent current and a low
dropout voltage.
The 400mA step-down converter is designed to
minimize external component size and cost while
maintaining a low 25μA no load quiescent current.
Peak current mode control with internal compen-
sation provides a stable converter with a low equiv-
alent series resistance (ESR) ceramic output
capacitor for extremely low output ripple.
For maximum battery life, the step-down converter
increases to 100% duty cycle and has a typical
180mV dropout voltage at 400mA. The output volt-
age is either fixed or adjustable with an integrated
P- and N-channel MOSFET power stage and
1MHz switching frequency.
The AAT2500 is available in a 12-pin TDFN33 or
STDFN33 package, and is rated over a tempera-
ture range of -40°C to +85°C.
Features
V
IN
Range: 2.7V to 5.5V
300mA LDO Current Output
400mV LDO Dropout Voltage at 300mA
High Output Accuracy: ±1.5%
Fast LDO Line / Load Transient Response
400mA, 96% Efficiency Step-Down Converter
25μA No Load Quiescent Current for Step-
Down Converter
Shutdown Current <1μA
Low R
DS(ON)
0.4
Ω
Integrated Power Switches
Low Dropout 100% Duty Cycle
1MHz Switching Frequency
Internal Soft Start
Over-Temperature Protection
Current Limit Protection
Available in TDFN33-12 or STDFN33-12
Package
-40°C to +85°C Temperature Range
Applications
Cellular Phones
Digital Cameras
Handheld Instruments
Microprocessor/DSP Core/IO Power
PDAs and Handheld Computers
Portable Media Players
相關PDF資料 |
PDF描述 |
|---|---|
| AAT2500IWP-AQ-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-AT-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-AW-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-ET-T1 | 1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-IP-T1 | 1MHz Step-Down Converter/LDO Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AAT2500IWP-AQ-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-AT-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-AW-T1 | 制造商:Skyworks Solutions Inc 功能描述:IC REG DL BUCK/LINEAR 12TDFN 制造商:Skyworks Solutions Inc 功能描述:VOLTAGE REGULATOR |
| AAT2500IWP-ET-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz Step-Down Converter/LDO Regulator |
| AAT2500IWP-IP-T1 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz Step-Down Converter/LDO Regulator |
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