YB1682 Datasheet, PDF (3/9 Pages) YOBON TECHNOLOGIES,INC. – 2A 380KHz 20V PWM Buck DC/DC Converter

YB1682
2A 380KHz 20V PWM Buck DC/DC Converter
Absolute Maximum Ratings
Recommended Operating Conditions
Input Voltage............................. -0.3V to 20V
Feedback Pin Voltage .................-0.3V to V_IN
Enable Pin Voltage.................... -0.3V to 12V
Switch Pin Voltage ......................-0.3V to V_IN
Power Dissipation .............. Internally Limited
Operating Junction Temperature......... 150°C
Storage Temperature ............ -65°C to 150°C
Input Voltage............................ 3.6V to 20V
Operating Junction Temperature ... -40°C to 125°C
Operating Ambient Temperature.......-40°C to 85°C
Lead Temperature (Soldering, 10 sec)... 260°C
ESD (HBM).......................................2000V
Note:
Stresses greater than those listed under Maximum Ratings may cause permanent damage to the device. This
is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
Electrical Characteristics
Table 2 (V_IN = V_RUN = 3.6V, T_A=25°C, Test Circuit Figure 1, unless otherwise noted.)
Description
Symbol
Test Conditions
MIN TYP MAX Units
Input Voltage
V_IN
3.6
20
V
Shutdown Supply Current
I_STBY V_EN = 0V
30
90
µA
Supply Current
I_CC
V_EN = 2V, V_FB = 1.3V
3.6
4
mA
Feedback Voltage
V_FB V_IN = 3.6V to 23V
1.21 1.222 1.26 V
Feedback Bias Current
I_FB
V_FB = 1.3V
0.1 0.5 µA
Switch Current Limit
I_LIM
3
4
A
Oscillator Frequency
F_OSC
320 380 440 KHz
EN Pin Threshold
V_EN
0.7 1.2 1.7
V
EN Pin Input Leakage
Current
I_H
V_EN = 2.5V
I_L
V_EN = 0.5V
-0.1
-1
µA
-3 -10 µA
Internal PMOS R_DSON
R_DSON
V_IN 12V, V_FB =0V
V_EN = 12V, I_OUT = 2A
140
mΩ
Max. Duty Cycle
D_MAX V_FB = 0V, I_SW = 0.1A
100
%
Efficiency
η
V_IN = 12V, V_OUT = 5V, I_OUT = 2A
92
%
Thermal Shutdown
T_OTSD
165
°C
YB1682 Rev.1.0
www.yobon.com.tw
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