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PDF FSP3124 Data sheet ( Hoja de datos )
| Número de pieza | FSP3124 | |
| Descripción | 150KHZ 3A PWM BUCK DC/DC CONVERTER | |
| Fabricantes | FOSLINK SEMICONDUCTOR | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FSP3124 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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www.DataSheet4U.com
150KHZ 3A PWM BUCK DC/DC CONVERTER
FEATURES
z Output voltage: 3.3V, 5.0V, 12V, and adjustable
output version
z Adjustable version output voltage range:1.23V to
18V±4%
z 150KHz±15% fixed switching frequency
z Voltage mode non-synchronous PWM control
z Thermal-shutdown and current-limit protection
z ON/OFF shutdown control input
z Operating voltage can be up to 22V
z Output load current: 3A
z Low power standby mode
z Built-in switching transistor on chip
z TO252-5L packages
APPLICATIONS
z Simple High-efficiency step-down regulator
z On-card switching regulators
z Positive to negative converter
FSP3124
GENERAL DESCRIPTION
The FSP3124 series are monolithic IC that design for
a step-down DC/DC converter, and own the ability of
driving a 3A load without additional transistor
component. Due to reducing the number of external
component, the board space can be saved easily.
The external shutdown function can be controlled by
logic level and then come into standby mode. The
internal compensation makes feedback control have
good line and load regulation without external design.
Regarding protected function, thermal shutdown is to
prevent over temperature operating from damage,
and current limit is against over current operating of
the output switch. If current limit function occurred and
VFB is down to 0.5V below, the switching frequency
will be reduced. The FSP3124 series operates at a
switching frequency of 150 KHz thus allowing smaller
sized filter components than what would be needed
with lower frequency switching regulators. Other
features include a guaranteed ±4% tolerance on
output voltage under specified input voltage and
output load conditions, and ±15% on the oscillator
frequency. The output version included fixed 3.3V,
5V, 12V, and an adjustable type. The package is
available in a standard 5-lead TO-252 package.
PIN CONFIGURATION
(Top View)
5
4
3
2
1
Metal Tab GND
SD
FB
GND
OUTPUT
VIN
Symbol
1
2
3
4
5
Name
Vin
Output
Gnd
FB
SD
Descriptions
Operating Voltage Input
Switching Output
Ground
Output Voltage Feedback Control
ON/OFF Shutdown
1/9 2007-3-27
1 page  
TYPICAL APPLICATION CIRCUITS
(1) Fixed Output Circuit
www.DataSheet4U.com
150KHZ 3A PWM BUCK DC/DC CONVERTER
FSP3124
(2) Adjustable Output Circuit
5/9 2007-3-27
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet FSP3124.PDF ] | |
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