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AS1324 Datasheet(PDF) 8 Page - ams AG

No. de pieza AS1324
Descripción Electrónicos  1.5MHz, 600mA Synchronous DC/DC Conver ter
PDF  21 Pages
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Fabricante Electrónico  AMSCO [ams AG]
Página de inicio  http://www.ams.com
Logo AMSCO - ams AG

AS1324 Datasheet(HTML) 8 Page - ams AG

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AS1324
Datasheet - D e t a i l e d D e s c r i p t i o n
8 Detailed Description
The AS1324 is a high-efficiency buck converter that uses a constant-frequency current-mode architecture. The device contains two internal
MOSFET switches and is available in adjustable- and fixed-output voltage versions.
Figure 21. AS1324 - Block Diagram
AS1324
OSC
Frequency
Shift
0.6V
Reference
+
–
Error
Amp
Shutdown
Ramp
Compensator
R2
0.6V
FB
OSCN
Digital
Logic
0.6V +
∆VOVL
0.6V -
∆VOVL
–
OVDET
+
–
+
–
ICOMP
+
–
IRCMP
+
Anti-
Shoot
Through
Not applicable to AS1324
AS1324-12: R1 + R2 = 600k
Ω
AS1324-15: R1 + R2 = 750k
Ω
AS1324-18: R1 + R2 = 900k
Ω
R1
PMOS
1
EN
5
VOUT/VFB
4
VIN
3
SW
2
GND
NMOS
COUT
10µF
VOUT
4.7µH
CIN
10µF
VIN



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