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PDF VVP3120-ADJ Data sheet ( Hoja de datos )

Número de pieza VVP3120-ADJ
Descripción 52KHZ 3A PWM BUCK DC/DC CONVERTER
Fabricantes FSC 
Logotipo FSC Logotipo



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No Preview Available ! VVP3120-ADJ Hoja de datos, Descripción, Manual

52KHZ 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
37V±4%
z 52KHz±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 40V
z Output load current: 3A
z Low power standby mode
z Built-in switching transistor on chip
z TO220-5L,TO263-5L packages
„ APPLICATIONS
z Simple High-efficiency step-down regulator
z On-card switching regulators
z Positive to negative converter
„ PIN CONFIGURATION
(1) TO220-5L
(Top View)
VVP3120
„ GENERAL DESCRIPTION
The VVP3120 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. The VVP3120 series operates at a
switching frequency of 52 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 packages are
available in a standard 5-lead TO-220 package
5-lead TO-263 package.
(2) TO263-5L
(Top View)
5 SD
4 FB
3 GND
2 OUTPUT
1 VIN
5 SD
4 FB
3 GND
2 OUTPUT
1 VIN
Metal Tab Gnd
Metal Tab Gnd
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
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1 page




VVP3120-ADJ pdf
ON/OFF Threshold Voltage
2.5
2.0 OFF
1.5
1.0
0.5 ON
0.0
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE( )
„ TYPICAL APPLICATION CIRCUITS
(1) Fixed Output Circuit
52KHZ 3A PWM BUCK DC/DC CONVERTER
VVP3120
Switch Current Limit
5.50 VIN=12V Vout=5V
5.00
4.50
4.00
3.50
-50 -25 0 25 50 75 100 125
JUNCTION TEMPERATURE( )
(2) Adjustable Output Circuit
5/9

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