Datasheet

FUNCTIONAL SPECIFICATIONS, OKX-T/3-W5-C
ABSOLUTE MAXIMUM RATINGS
Conditions ➀
Minimum Typical/Nominal Maximum Units
Input Voltage, Continuous
Full power operation 0 5.8 Vdc
Input Reverse Polarity
None, install external fuse None Vdc
On/Off Remote Control
Power on or off, referred to -Vin 0 5.5 Vdc
Output Power
0 9.9 10.1 W
Output Current
Current-limited, no damage,
short-circuit protected
03A
Storage Temperature Range
Vin = Zero (no power) -55 125 °C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other
than those listed in the Performance/Functional Specifi cations Table is not implied or recommended.
INPUT
Conditions ➀ ➂
Operating voltage range
Vo < Vin-0.5 2.4 5 5.5 Vdc
Recommended External Fuse
Fast blow 6 A
Turn On/Start-up threshold
Rising input voltage 1.95 2.15 Vdc
Turn Off/Undervoltage lockout
15
Falling input voltage 1.73 2.07 Vdc
Reverse Polarity Protection
None, install external fuse None Vdc
Internal Filter Type
C-TYPE
Input current
Full Load Conditions
Vin = nominal (3.3Vo set) 2.095 2.183 A
Low Line
Vin @ min, 3.3 Vout 2.672 2.784 A
Inrush Transient
0.04 A2-Sec.
Short Circuit Input Current
60 mA
No Load Input Current
3.3Vout, Iout @ 0 40 50 mA
No Load Input Current
0.75V, Iout @ 0 20 30
Shut-Down Mode Input Current
5mA
Refl ected (back) ripple current ➁
Measured at input with specifi ed fi lter 20 mA, pk-pk
GENERAL and SAFETY
Effi ciency
@ Vin nom, 3.3Vout 92.5 94.5 %
@ Vin min, 3.3Vout 93 95 %
@ Vin nom, 2.5Vout 91 92.5 %
@Vin nom, 1.8Vout 88 90 %
@Vin nom, 1.5Vout 87 89 %
@Vin nom, 1.2Vout 84 86 %
@Vin nom, 1Vout 82 84 %
@Vin nom, 0.7525Vout 78 79 %
Safety (certifi ed to the following
requirements)
UL-60950-1, CSA-C22.2 No.60950-1, IEC/
EN60950-1, 2nd edition (pending)
Yes
Calculated MTBF ➃
Class 3, ground fi xed, Tambient=+25°C TBD Hours x 10
6
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
250 300 350 KHz
Startup Time
Power On, to Vout regulation band,
100% resistive load
810mS
Startup Time
Remote ON to 10% Vout (50% resistive load) 6 mS
Dynamic Load Response
50-100-50% load step, settling time to within
±2% of Vout di/dt = 2.5 A/µSec
90 µSec
Dynamic Load Peak Deviation
same as above ±200 mV
FEATURES and OPTIONS
Remote On/Off Control
15
“N” suffi x:
Negative Logic, ON state
Pin open=ON 0 0.4 V
Negative Logic, OFF state
1.5 +Vin V
Control Current
open collector/drain 1 mA
“P” suffi x:
Positive Logic, ON state
Pin open=ON +Vin-0.4 +Vin V
Positive Logic, OFF state
0 0.4 V
Control Current
open collector/drain 1 mA
OKX T/3-W5 Series
Adjustable 3-Amp SIP Non-Isolated DC/DC Converters
MDC_OKX_T/3-W5 Series.A01 Page 3 of 15
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