EP3102_15 Datasheet, PDF (3/10 Pages) Eorex Corporation – 150 KHz, 2A Asynchronous Step-down Converter

eorex
EP3102
Absolute Maximum Rating ^{(Note 1)}
Symbol
Item
V_IN
V EN
V_FB
V_OUT
V_OP
P_D
T_OP
T_STG
Input Supply Voltage
EN Pin Input Voltage
Feedback Pin Voltage
Output Voltage to Ground
Operating Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Rating
+45
-0.3 ~ +25
-0.3 ~ +25
-1
+4.5 ~+25
Internally Limited
-40 ~ +125
-65 ~ +150
Units
V
V
V
V
V
W
°C
°C
Electrical Characteristics (All Output Voltage Versions) ^{(Note 2)}
Unless otherwise specified, V_IN=12V for 3.3V, 5V, adjustable version and V_IN=24V for the 12V version.
I_LOAD=0.2A
Symbol
Parameter
Conditions
Min. Typ. Max. Units
I_FB Feedback Bias Current
F_OSC Oscillator Frequency
V_FB=1.3V
(Adjustable version only)
-50
-10
nA
-100
127 150 173
KHz
110
173
F_SCP
Oscillator Frequency of Short
Circuit Protect
When current limit occurred
and V_FB<0.55V
30
70 KHz
V_SAT Saturation Voltage
I_OUT=1.5A
no outside circuit V_FB=0V
force driver on
1.4
1.25
V
1.5
Max. Duty Cycle (ON)
DC
Min. Duty Cycle (OFF)
I_CL Current Limit
V_FB=0V force driver on
V_FB=12V force driver off
Peak Current
no outside circuit V_FB=0V
force driver on
100
%
0
3.3
2.4
2.8
A
3.6
I_L
Output=0
Output Leakage
No outside circuit V_FB=12V
fore driver off
Current
Output=-1
V_IN=24V
I_Q Quiescent Current
V_FB=12V force driver off
I_STBY Standby Quiescent Current
EN pin=5V
V_IN=24V
V_IL
EN Pin Logic Input Threshold ^{Low (regulator ON)}
V_IH Voltage
High (regulator OFF)
2.0
I_H
EN Pin Logic Input Current ^{VLOGIC=2.5V (OFF)}
I_L
EN Pin Input Current
V_LOGIC=0.5V (ON)
T_S
Over Temperature Shutdown
Threshold
T_J increasing
T_J decreasing
θ_JC Thermal Resistance
SOP-8L Junction to Case
Thermal Resistance with
θ_JA
Copper Area of Approximately
3in²
SOP-8L
Junction to
Ambient
-200 µA
-5
mA
5
10 mA
150
70
µA
200
0.6
1.3
V
-0.01 µA
-0.1
-1
µA
175
°C
150
°C
15
°C/W
70
°C/W
Nov. 2006
www.eorex.com
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