AAT2513 Datasheet PDF - AAT
| Part Number | AAT2513 | |
| Description | Dual 600mA Step-Down Converter | |
| Manufacturers | AAT | |
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There is a preview and AAT2513 download ( pdf file ) link at the bottom of this page. Total 22 Pages | ||
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AAT2513
Dual 600mA Step-Down
Converter with Synchronization
General Description
Features
SystemPower™
The AAT2513 is a high efficiency dual synchronous
step-down converter for applications where power
efficiency, thermal performance and solution size
are critical. Input voltage ranges from 2.7V to 5.5V,
making it ideal for systems powered by single-cell
lithium-ion/polymer batteries.
Each converter is capable of 600mA output current
and has its own enable pin. Efficiency of the con-
verters is optimized over full load range. Total no
load quiescent current is 60µA, allowing high effi-
ciency even under light load conditions.
The integrated power switches are controlled by
pulse width modulation (PWM) with a 1.7MHz typi-
cal switching frequency at full load, which minimizes
the size of external components. Fixed frequency,
low noise operation can be forced by a logic signal
on the MODE pin. Furthermore, an external clock
can be used to synchronize the switching frequency
of both converters.
• VIN Range: 2.7V to 5.5V
• Output Current:
— Channel 1: 600mA
— Channel 2: 600mA
• 96% Efficient Step-Down Converter
• Low No Load Quiescent Current
— 60µA Total for Both Converters
• Integrated Power Switches
• 100% Duty Cycle
• 1.7MHz Switching Frequency
• Optional Fixed Frequency or External SYNC
• Logic Selectable 180° Phase Shift Between
the Two Converters
• Current Limit Protection
• Automatic Soft-Start
• Over-Temperature Protection
• QFN33-16 Package
• -40°C to +85°C Temperature Range
A phase shift pin (PS) is available to operate the
two converters 180° out of phase at heavy load towww.DataSheet4U.com
Applications
achieve low input ripple.
• Cellular Phones / Smart Phones
The AAT2513 is available in a Pb-free, thermally
• Digital Cameras
enhanced 16-pin QFN33 package and is specified
• Handheld Instruments
for operation over the -40°C to +85°C temperature
• Micro Hard Disc Drives
range.
• Microprocessor / DSP Core / IO Power
• PDAs and Handheld Computers
Typical Application
Input:
2.7V to 5.5V
CIN
1μF
VIN1
VIN2
LX1
VCC
FB1
AAT2513
LX2
MODE/SYNC
PS
EN1
EN2
AGND
FB2
PGND1 PGND2
L1
VOUT1
2μH R1
L2
VOUT2
R2
2μH
R3
C1
4.7μF
R4
C2
4.7μF
2513.2007.04.1.1
1
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Electrical Characteristics
Efficiency vs. Load
(VOUT = 3.3V; L = 4.7µH; LL Mode)
100
90 VIN = 3.6V
80
VIN = 4.2V
70
60 VIN = 5.0V
50
40
30
0.1
1
10 100
Output Current (mA)
1000
Efficiency vs. Load
(VOUT = 2.5V; L = 3.3µH; LL Mode)
100
90 VIN = 2.7V
80
70 VIN = 3.6V
60 VIN = 4.2V
50 VIN = 5.0V
40
30
0.1
1
10 100
Output Current (mA)
1000
100
90
80
70
60
50
40
30
20
0.1
Efficiency vs. Load
(VOUT = 1.8V; L = 2.2µH; LL Mode)
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VIN = 5.0V
1 10 100
Output Current (mA)
1000
AAT2513
Dual 600mA Step-Down
Converter with Synchronization
DC Regulation
(VIN = 5.0V; VOUT = 3.3V; L = 4.7µH; LL Mode)
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
0.1
1
10 100
1000
Output Current (mA)
DC Regulation
(VIN = 3.3V to 5.5V; VOUT = 2.5V; L = 3.3µH; LL Mode)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0.1
1
10 100 1000
Output Current (mA)
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0.1
DC Regulation
(VOUT = 1.8V; L = 2.2µH; LL Mode)
VIN = 4.2V
VIN = 5.0V
VIN = 3.3V
1 10 100
Output Current (mA)
1000
2513.2007.04.1.1
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AAT2513 electronic component. |
| Information | Total 22 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AAT2513.PDF Datasheet ] | |
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