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What is AAT1184?

This electronic component, produced by the manufacturer "Skyworks", performs the same function as "High Voltage Step-Down Regulator".


AAT1184 Datasheet PDF - Skyworks

Part Number AAT1184
Description High Voltage Step-Down Regulator
Manufacturers Skyworks 
Logo Skyworks Logo 


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General Description
The AAT1184 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 1.2A 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 AAT1184 is available in the Pb-free, low profile
12-pin TSOPJW package. The rated operating tempera-
ture range is -40C to 85C.
DATA SHEET
AAT1184
High Voltage Step-Down Regulator
Features
VIN = 6.0 to 24.0V
VOUT Adjustable from 1.5V to 5.5V
IOUT up to 1.2A
• 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 3x3mm TSOPJW-12 Package
• -40°C to 85°C Temperature Range
Applications
• DSL and Cable Modems
• Notebook Computers
• Satellite Set Top Box
• Wireless LAN Systems
Typical Application
VIN
6V - 24V
TSOPJW -12
IN BST
+
C1
25µF
25V
D1
BAS16
C12
1µF
25V
LX
EN
RS
AAT1184
VL
C3
2.2µF
OS
FB
COMP
GND
C2
0.1µF
L1
4.7µH
D2
B340A
R1
2.32K
C4
68nF
C7
330pF
R7
499
R2
24.3K
C5
220pF
C6
56pF
VOUT
5V/1.2A
R4
44.2k
C8
22µF
R5
6.04k
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202000A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 29, 2012
1

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AAT1184 equivalent
Typical Characteristics
Step-Down Converter Efficiency vs. Load
(VOUT = 3.3V; L = 4.7µH)
100
90
80
70
60
50
40 VIN = 6V
30 VIN = 8V
20 VIN = 12V
10
VIN = 18V
VIN = 24V
0
0.1 1
10
100
1000
10000
Output Current (mA)
Step-Down Converter DC Regulation
(VOUT = 3.3V; L = 4.7µH)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0.1
VIN = 6V
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
1 10 100 1000
Output Current (mA)
10000
Step-Down Converter Line Regulation
(VOUT = 3.3V; L = 4.7µH)
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
6
IOUT = 0.1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 600mA
IOUT = 1200mA
8 10 12 14 16 18 20 22 24
Input Voltage (V)
DATA SHEET
AAT1184
High Voltage Step-Down Regulator
Step-Down Converter Efficiency vs. Load
(VOUT = 5V; L = 4.7µH)
100
90
80
70
60
50
40 VIN = 6V
30 VIN = 8V
20 VIN = 12V
VIN = 18V
10 VIN = 24V
0
0.1 1
10
100
1000
10000
Output Current (mA)
Step-Down Converter DC Regulation
(VOUT = 5V; L = 4.7µH)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
0.1
VIN = 6V
VIN = 8V
VIN = 12V
VIN = 18V
VIN = 24V
1
10
100
1000
10000
Output Current (mA)
Step-Down Converter Line Regulation
(VOUT = 5V; L = 4.7µH)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
-3.5
-4.0
6
IOUT = 0.1mA
IOUT = 10mA
IOUT = 100mA
IOUT = 600mA
IOUT = 1200mA
8 10 12 14 16 18 20 22 24
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202000A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 29, 2012
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AAT1184 electronic component.


Information Total 18 Pages
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Download [ AAT1184.PDF Datasheet ]

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