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AAT1189IRN-0.6-T1 参数 Datasheet PDF下载

AAT1189IRN-0.6-T1图片预览
型号: AAT1189IRN-0.6-T1
PDF下载: 下载PDF文件 查看货源
内容描述: 高电压降压稳压器 [High Voltage Step-Down Regulator]
分类和应用: 稳压器
文件页数/大小: 19 页 / 3820 K
品牌: ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
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PRODUCT DATASHEET
AAT1
189
SwitchReg
TM
General Description
The AAT1189 is a single output step-down (Buck) DC
output regulator with an integrated high side MOSFET.
The input range is 6V to 24V making it the ideal power IC
solution for consumer communications equipment oper-
ating from a low cost AC/DC adapter with 12V output.
The step-down regulator provides up to 2.5A output cur-
rent in a small package. 490kHz fixed switching fre-
quency allows small L/C filtering components.
Voltage mode control allows for optimum performance
across the entire output voltage and load range.
The controller includes programmable over-current, inte-
grated soft-start and over-temperature protection.
The AAT1189 is available in the Pb-free, low profile
16-pin TDFN34 package. The rated operating tempera-
ture range is -40°C to 85°C.
High Voltage Step-Down Regulator
Features
V
IN
= 6.0 to 24.0V
V
OUT
Adjustable from 1.5V to 5.5V
I
OUT
up to 2.5A
Small Solution Size
Low-Cost Non-Synchronous Solution
Shutdown Current <35μA
High Switching Frequency
Voltage Mode Control
PWM Fixed Frequency for Lowest Noise
Programmable Over-Current Protection
Over-Temperature Protection
Internal Soft Start
Low Profile 3x4mm TDFN-16 Packages
-40°C to 85°C Temperature Range
Applications
DSL and Cable Modems
Notebook Computers
Satellite Set Top Box
Wireless LAN Systems
Typical Application
V
IN
6.0V - 24.0V
TDFN 34-16
IN
BST
LX
EN
EN
D2
B340A
D1
BAS16
C2
0.1µF
L1
4.7µH
R1
6.34K
C7
330pF
R4
44.2K
R3
499
C8
22µF
C9
22µF
V
OUT
5V/2.5A
AAT1189
C1
100µF
25V
+
C12
1µF
25V
RS
VL
C4
68nF
OS
FB
C3
2.2µF
R2
24.3K
COMP
C5
220pF
C6
56pF
R5
6.04K
GND
1189.2008.06.1.0
www.analogictech.com
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