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PDF AX3203 Data sheet ( Hoja de datos )
| Número de pieza | AX3203 | |
| Descripción | 5A PWM Buck DC/DC Converter | |
| Fabricantes | Avantics | |
| Logotipo |  |
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AX3203
150KHz, 5A PWM Buck DC/DC Converter
Page No. : 1/7
AX3203 Series
Description
The AX3203 is Monolithic IC that design for a step-down DC/DC Converter, and own
the ability of driving a 5A load without additional transistor component. The output
version included 3.3V, 5V, 12V and an adjustable type. It operates at a switching
frequency of 150KHz 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. 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.
Features
• 3.3V, 5V, 12V and adjustable
• Adjustable version output voltage range: 1.3-37V
• ±4% max over line and load conditions
• 150KHz ±15% fixed switching frequency
• TTL shutdown capability
• Operating voltage can be up to 40V
• Output load current: 5A
• TO220-5L and TO263-5L packages
• Low power standby mode
• Thermal-shuntdown and current-limit protection
• High efficiency
• Built-in switching a transistor on chip, requires only 4 external components
Applications
• Simple High-efficiency step-down regulator
• Positive to negative converter
• On-card switching regulators
Connection Diagrams
Side
View
TO220-5L
Top
View
Metal Tab GND
Pins 1,3,5
Pins 2,4
5 - On/Off
4 - Feed Back
3 - Ground
2 - Output
1 - VIN
Side
View
TO263-5L
Top
View
Metal Tab GND
12345
12345
5 - On/Off
4 - Feed Back
3 - Ground
2 - Output
1 - VIN
AVANTICS - AX3203 Series
Specification No.: 050310-FE0010
1 page  
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Typical Application Circuit
Fig.1 Fixed Type Circuit
Page No. : 5/7
+
Unregulated
DC Input
1
Input
4 Feedback
AX3203
Fix Output
2
Output
C1
680uF
3 GND
5 ON/OFF
L1
18uH
D1
C2
220uF
L
O
A
D
Fig.2 Adjustable Output Voltage Versions
+
Unregulated
DC Input
R2 R1
1K
4 Feedback
1 AX3203 2
Input Adjustable Output Output
C1
680uF
3 GND
5 ON/OFF
L1
22uH
D1
C2
220uF
L
O
A
D
AVANTICS - AX3203 Series
Specification No.: 050310-FE0010
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet AX3203.PDF ] | |
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