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YB1696-ADJ Datasheet

  • YB1696-ADJ

  • 150KHz, 3A PWM Buck Switching Regulator

  • 11頁

  • YOBON

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YB1696
150KHz, 3A PWM Buck Switching Regulator
Description
The YB1696 series are monolithic
integrated circuits that provide all the active
functions for a step-down DC/DC converter,
capable of driving a 3A load without
additional transistor component. Requiring
a minimum number of external component,
the board space can be saved easily. The
external shutdown function can be
controlled by TTL 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 YB1696
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 5V and an
adjustable type. The package is available in
a standard 5-lead TO-263(S).
Features
5V and adjustable output versions
Adjustable version output voltage
range, 1.23V to 28V
+
4% max over
line and load condition
Available in TO263-5L packages
Voltage mode non-synchronous PWM
control
Thermal-shutdown and current-limit
protection
ON/OFF shutdown control input
Input voltage range up to 32V
Output load current: 3A
150 KHz fixed frequency internal
oscillator
Low power standby mode
Built-in switching transistor on chip
Applications
Simple High-efficiency step-down
regulator
Efficient preregulator for linear
regulators
On-card switching regulators
Positive to negative converter
Battery charger
Typical Application Circuit
YB1696 MRev.1.1
www.yobon.com.tw
1

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