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EC3293A Datasheet(PDF) 4 Page - E-CMOS Corporation

Part # EC3293A
Description  3A, 18V, 500KHz, Synchronous Step Down DC/DC Converter
PDF  11 Pages
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Manufacturer  E-CMOS [E-CMOS Corporation]
Direct Link  http://www.ecmos.com.tw/
Logo E-CMOS - E-CMOS Corporation

EC3293A Datasheet(HTML) 4 Page - E-CMOS Corporation

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EC3293A
3A, 18V, 500KHz,
Synchronous Step Down DC/DC Converter
E-CMOS Corp. (www.ecmos.com.tw)
5G01N-Rev. F002
4/11
Electrical Characteristics
(TA = +25°C, VIN = +12V, unless otherwise noted.)
* Guaranteed by design, not tested.
PARAMETER
Symbol
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply Voltage
VIN
4.7
18
V
Output Voltage
VOUT
0.8
15
V
Shutdown Supply Current
VEN = 0V
3
6
µA
Supply Current
VEN = 2.0V,VFB =1V
0.7
mA
Feedback Voltage
VFB
4.75V
≤ V
IN ≤ 18V
0.776
0.8
0.824
V
Feedback Over-voltage Threshold
0.88
V
Error Amplifier Voltage Gain *
AEA
1000
V/V
High-Side Switch-On Resistance *
RDS(ON)1
110
mΩ
Low-side Switch-On Resistance *
RDS(ON)2
58
mΩ
High-Side Switch Leakage Current
VEN = 0V, VSW = 0V,
TA = +125°C
10
µA
Upper Switch Current Limit
Minimum Duty Cycle
3.7
4.3
A
Lower Switch Current Limit
From Drain to Source
0
A
Oscillation Frequency
FOSC1
400
500
600
KHz
Short Circuit Oscillation Frequency
FOSC2
VFB = 0V
100
125
150
KHz
Maximum Duty Cycle
DMAX
VFB = 0.5V
90
%
Minimum On Time *
120
ns
EN Falling Threshold Voltage
VEN Falling
1.22
V
EN Rising Threshold Voltage
VEN Rising
1.32
V
Input Under Voltage Lockout Threshold
VIN Rising
3.75
V
Input Under Voltage Lockout Threshold
Hysteresis
200
mV
Soft-Start Period
1
ms
Thermal Shutdown *
150
°C



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