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EC3618 Datenblatt(PDF) 3 Page - E-CMOS Corporation

Teilenummer EC3618
Bauteilbeschribung  PWM Control 2A Step-Down Converter
PDF  8 Pages
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Hersteller  E-CMOS [E-CMOS Corporation]
Direct Link  http://www.ecmos.com.tw/
Logo E-CMOS - E-CMOS Corporation

EC3618 Datenblatt(HTML) 3 Page - E-CMOS Corporation

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EC3618
E-CMOS Corp. (www.ecmos.com.tw)
4K25N-Rev.F003
Page 3 of 8
PWM Control 2A Step-Down Converter
Absolute Maximun Rating (at TA=25°C)
Characteristics
Symbol
Rating
Unit
VCC Pin Voltage
VCC
VSS - 0.3 to VSS + 63
V
Feedback Pin Voltage
VFB
VSS - 0.3 to 6
V
EN Pin Voltage
VEN
VSS - 0.3 to VCC
V
SS Pin Voltage
SS
VSS - 0.3 to 6
V
COMP Pin Voltage
VCOMP
VSS - 0.3 to 6
V
VGATE Pin Voltage
VGATE
VSS - 0.3 to VCC
V
Switch Pin Voltage
VSW
VSS - 0.3 to VCC + 0.3
V
Power Dissipation
PD
Internally limited
mW
Storage Temperature Range
TST
-65 to +150
°C
Operating Junction Temperature Range
TOJP
-40 to +125
°C
Operating Input Voltage(Note 1)
VOP
8 to 58
V
Thermal Resistance from Junction to case
θ
JC
15
°C/W
Thermal Resistance from Junction to ambient (Note 2)
θ
JA
75
°C/W
Note:
1.
When Vop(Operating Input Voltage)<10V then Maximum output current is 0.45A。
2.
θ
JA is measured with the PCB copper area (need connect to Exposed Pad) of approximately 1.5 in2
(Multi-layer).
Electrical Characteristics
(VCC = 24V, TA=25°C, unless otherwise specified)
Characteristics
Symbol
Conditions
Min
Typ
Max
Units
Feedback Voltage
VFB
IOUT=10mA
0.98
1.00
1.02
V
Quiescent Current
ICCQ
VFB=1.2V, force driver off
-
3
6
mA
Feedback Bias Current
IFB
IOUT=0.1A
-
0.1
0.5
uA
Shutdown Supply Current
ISD
VEN =0V
-
0.5
1
mA
Line Regulation
△VOUT/VOUT
VCC =10V~58V,
IOUT=10mA
-
0.3
0.6
%
Load Regulation
△VOUT/VOUT
IOUT = 0.2 to 2A
-
0.3
0.6
%
Current Limit
ICL
2.8
-
-
A
FOSC
EC3618N
90
120
150
KHz
Oscillator frequency
FOSC
EC3618A
200
250
300
KHz
FOSC1
EC3618N ICL
-
50
-
KHz
FOSC1
EC3618A ICL
-
110
-
KHz
Short frequency
FOSC2
EC3618N/EC3618A
VFB < 0.3
-
30
-
KHz
VSH
High (regulator ON)
2.0
-
-
V
EN Pin Logic input threshold
voltage
VSL
Low (regulator OFF)
-
-
0.8
ISH
VEN=2.5V (ON)
-
5
-
uA
EN Pin Input Current
ISL
VEN=0.3V (OFF)
-
5
-
uA
SS Current
ISS
VSS=0V
-
10
-
uA
Internal MOSFET RDSON
RDSON
VCC=12V, 1A,VFB=0V
-
220
300
m
Efficiency (EC3618)
EFFI
VCC = 24V,
VOUT = 5V, IOUT = 2A
-
90
-
%
Thermal shutdown Temp
(Junction Temp)
TSD
-
150
-
°C
Thermal shutdown Hysteresis
TSH
-
40
-
°C



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