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參數(shù)資料
| 型號(hào)： | AAT1156 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 元件分類(lèi)： | DC/DC變換器 |
| 英文描述： | 1MHz 700mA Step-Down DC-DC Converter |
| 中文描述： | 1MHz的700mA的降壓型DC - DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大小： | 435K |
| 代理商： | AAT1156 |
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AAT1156
1MHz 700mA Step-Down DC-DC Converter
1156.2005.11.1.2
1
SwitchReg
General Description
The AAT1156 SwitchReg is a member of
AnalogicTech's Total Power Management IC
(TPMIC) product family. The step-down switching
converter is ideal for applications where high effi-
ciency is required over the full range of load condi-
tions. The 2.7V to 5.5V input voltage range makes
the AAT1156 ideal for single-cell lithium-ion/polymer
battery applications. Capable of more than 700mA
with internal MOSFETs, the current-mode con-
trolled IC provides high efficiency over a wide oper-
ating range. Fully integrated compensation simpli-
fies system design and lowers external parts count.
The AAT1156 is available in the 16-pin 3x3mm
QFN package and is rated over the -40°C to +85°C
temperature range.
Features
V
IN
Range: 2.7 to 5.5 Volts
Up to 95% Efficiency
110m
R
DS(ON)
Internal Switches
<1μA Shutdown Current
1MHz Step-Down Switching Frequency
Fixed or Adjustable V
OUT
≥
0.8V
Integrated Power Switches
Current Mode Operation
Internal Compensation
Stable with Ceramic Capacitors
Internal Soft Start
Over-Temperature Protection
Current Limit Protection
16-Pin QFN 3x3mm Package
-40°C to +85°C Temperature Range
Applications
Cellular Phones
Digital Cameras
MP3 Players
Notebook Computers
PDAs
Wireless Notebook Adapters
Typical Application
AAT1156 Efficiency
(V
OUT
= 2.5V; L = 4.7
μ
H; CDRH3D16)
Output Current (mA)
E
50
55
60
65
70
75
80
85
90
95
100
1
10
100
1000
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
4.7
μ
H
L1
2 x 22
μ
F
C3, C4
10
μ
F
C1
100
R1
0.1
μ
F
C2
C1 Murata 10
μ
F 6.3V X5R GRM42-6X5R106K6.3
C3-C4 MuRata 22
F 6.3V GRM21BR60J226ME39L X5R 0805
L1 Sumida CDRH3D16-4R7NC
2.5V
INPUT
187k
R3
59k
R4
LX
14
LL
6
EN
7
VCC
9
VP
10
NC
8
LX
13
PGND
3
VP
12
VP
11
FB
4
LX
15
PGND
2
PGND
1
SGND
5
NC
16
AAT1156
U1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1156_07 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 700mA Step-Down DC-DC Converter |
| AAT1156IVN-T1 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 700mA Step-Down DC-DC Converter |
| AAT1157 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 1.2A Buck DC/DC Converter |
| AAT1157IVN-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT1160 | 制造商:AAT 制造商全稱(chēng):AAT 功能描述:Step Up Current Mode PWM Converter with 4+1 Operational Amplifiers |
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