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Analog Intergrations Corporation

AIC2573 Datasheet Preview

AIC2573 Datasheet

DC/DC Controller

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AIC2573
Synchronous Buck DC/DC Controller
FEATURES
High Efficiency: Up to 93%
Single-Powered N-channel MOSFETs Synchro-
nous Driver
Wide Input Voltage Operation Range 4.5V to 25V
Accurate Internal temperature compensated 0.8V
Bandgap Reference Voltage with ±1% precision.
Fast Transient Response
- Duty cycle 0% to 95 %
PWM Operation at 300KHz
Built-in Soft-Start function.
Over Voltage Protection with Latch Up.
Under Voltage Protection at Vout with Latch Up.
Over Current Protection.
Package: MSOP10
APPLICATIONS
Information Appliances
LCD TV
Graphic Card
Telecomm Equipments
GENERAL DESCRIPTION
The AIC2573 is a voltage mode synchronous buck
PWM controller that drives external N-channel
power MOSFET using a 300kHz fixed frequency
architecure. This device is capable of producing
an output voltage as low as 0.8V. It uses external
divider to adjust output voltage with the exact right
line and load regulation.
The AIC2573 provides adjustable overcurrent pro-
tection threshold from external component, fixed
threshold both undervoltage and overvoltage pro-
tection. LDO is built in to provide AIC2573 logic
power source, and application circuit just uses one
single power supply.
A multifunction pin (COMP) allows external com-
pensation for optimum load step response and
shutdown. Soft start can also be implemented with
this pin to properly sequence supplies.
The AIC2573 is available in space-saving 10 pins
MSOP package.
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-2573G-01 061008
1




Analog Intergrations Corporation

AIC2573 Datasheet Preview

AIC2573 Datasheet

DC/DC Controller

No Preview Available !

TYPICAL APPLICATION CIRCUIT
AIC2573
Fig.1 General Application Circuit
ORDERING INFORMATION
AIC2573X XX XX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGING TYPE
OB: MSOP-10
P: Lead Free Commercial
G: Green Package
Example: AIC2573POBTB
In MSOP-10 Package & Taping
& Reel Packing Type
PIN CONFIGURATION
(MSOP10)
TOP VIEW
OCSET 1
VCC 2
COMP 3
FB 4
GND 5
AIC2573
10 VINT
9 BST
8 UGATE
7 PHASE
6 LGATE
2


Part Number AIC2573
Description DC/DC Controller
Maker Analog Intergrations Corporation
Total Page 13 Pages
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