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AP1501A Fiches technique(PDF) 1 Page - Anachip Corp

No de pièce AP1501A
Description  150Khz, 5A PWM Buck DC/DC Converter
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Fabricant  ANACHIP [Anachip Corp]
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AP1501A Fiches technique(HTML) 1 Page - Anachip Corp

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AP1501A
150Khz, 5A PWM Buck DC/DC Converter
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.4 Feb 19, 2004
1/11
Features
- Output voltage: 3.3V, 5V, 12V and adjustable
output version
- Adjustable version output voltage range, 1.23V to
37V+4%
- 150Khz +15% fixed switching frequency
- Voltage mode non-synchronous PWM control
- Thermal-shutdown and current-limit protection
- ON/OFF shutdown control input
- Operating voltage can be up to 40V
- Output load current: 5A
- TO220-5L, TO220-5L(R) and TO263-5L packages
- Low power standby mode
- Built-in switching transistor on chip
Applications
- Simple High-efficiency step-down regulator
- On-card switching regulators
- Positive to negative converter
General Description
The AP1501A series are monolithic IC that design
for a step-down DC/DC converter, and own the
ability of driving a 5A 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 AP1501A series 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. 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 and
a 5-lead TO-263.
Pin Assignments
TO220-5L/TO220-5L(R)
( Top View )
( Top View )
TO263-5L
1 V
IN
5 SD
4 FB
3 Gnd
2 Output
Metal Tab GND
1 V
IN
5 SD
4 FB
3 Gnd
2 Output
Pin Descriptions
Name
Description
VIN
Operating voltage input
Output
Switching output
Gnd
Ground
FB
Output voltage feedback control
SD
ON/OFF Shutdown


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