YB1693
2A / 150KHz Buck DC-DC Converter
Description
YB1693 Series are step-down switching
regulators with all required active functions.
It is capable of driving 2A load with
excellent line and load regulations. These
devices are available in fixed output
voltages of 3.3V, 5V and an adjustable
output version.
YB1693 series operates at a switching
frequency of 150KHz thus allowing smaller
sized filter components than what would be
needed with lower frequency switching
regulators. It substantially not only reduces
the area of board size but also the size of
heat sink, and in some cases no heat sink
is required. The ±4% tolerance on output
voltage within specified input voltages and
output load conditions is guaranteed. Also,
the oscillator frequency accuracy is within
±10%. External shutdown is included.
Featuring 70μA (typical) standby current.
The output switch includes cycle-by-cycle
current limiting, as well as thermal
shutdown for full protection under fault
conditions.
Features
Output Voltage: 3.3V, 5V & Adjustable
version
Adjustable Output Voltage Range
1.23V~19.5V ±4%
150KHz ±15% fixed switching
frequency
Voltage Mode Non-synchronous PWM
control
Thermal Shutdown and Current Limit
Protection
ON/OFF Shutdown Control Input
Soft-start (SS) Function
Short Circuit Protect (SCP)
Operating Voltage Can be up to 24V
Output Load Current 2A
Low Power Standby Mode
Applications
Simple High-efficiency Step down
Regulator
On-Card Switching Regulators
Typical Application Circuit
Figure 1: Typical Application Circuit
YB1693 MRev.1.0
www.yobon.com.tw
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YOBON [ YOBON TECHNOLOGIES,INC. ]
