Delta Electronics DNT04 - Manual (Page 2)

DS_DNT04SIP3A_09262007
2
TECHNICAL SPECIFICATIONS
(T
A
= 25°C, airflow rate = 300 LFM, V
in
= 2.4Vdc and 5.5Vdc, nominal Vout unless otherwise noted.)
PARAMETER NOTES and CONDITIONS DNT04S0A0R03NFA
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous) 0 5.8 Vdc
Operating Temperature Refer to Figure 32 for measuring point -40 125 °C
Storage Temperature -55 125 °C
INPUT CHARACTERISTICS
Operating Input Voltage Vo ≦ Vin –0.5V 2.4 5.5 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold 2.1 V
Turn-Off Voltage Threshold 2.0 V
Maximum Input Current Vin=4.5V Vo=3.3V, Io=Io,max 2.5 A
No-Load Input Current 30 45 mA
Off Converter Input Current 1 mA
Inrush Transient Vin=2.4V to 5.5V, Io=Io,min to Io,max 0.1 A 2 S
Recommended Input Fuse TBD A
OUTPUT CHARACTERISTICS
Output Voltage Set Point Vin=5V, Io=Io, max -2.0 Vo,set +2.0 % Vo,set
Output Voltage Adjustable Range 0.7525 3.63 V
Output Voltage Regulation
Over Line Vin=2.4V to 5.5V 0.3 % Vo,set
Over Load Io=Io,min to Io,max 0.4 % Vo,set
Over Temperature Ta=-40℃ to 85℃ 0.4 % Vo,set
Total Output Voltage Range Over sample load, line and temperature -3.0 +3.0 % Vo,set
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 1µF ceramic, 10µF tantalum 25 50 mV
RMS Full Load, 1µF ceramic, 10µF tantalum 10 15 mV
Output Current Range 0 3 A
Output Voltage Over-shoot at Start-up 5 % Vo,set
Output DC Current-Limit Inception 220 % Io
Output Short-Circuit Current (Hiccup Mode) Io,s/c 3 Adc (rms)
DYNAMIC CHARACTERISTICS
Dynamic Load Response 10µF Tantalum & 1µF Ceramic load cap, 2.5A/µs
Positive Step Change in Output Current 50% Io, max to 100% Io, max 220 mV
Negative Step Change in Output Current 100% Io, max to 50% Io, max 220 mV
Setting Time to 10% of Peak Devitation 25 µs
Turn-On Transient Io=Io.max
Start-Up Time, From On/Off Control Von/off, Vo=10% of Vo,set 7 ms
Start-Up Time, From Input Vin=Vin,min, Vo=10% of Vo,set 7 ms
Maximum Output Startup Capacitive Load Full load; ESR ≧1mΩ 1000 µF
Full load; ESR ≧10mΩ 3000 µF
EFFICIENCY
Vo=3.3V Vin=5V, 100% Load 94.0 %
Vo=2.5V Vin=5V, 100% Load 92.5 %
Vo=1.8V Vin=5V, 100% Load 90.0 %
Vo=1.5V Vin=5V, 100% Load 88.5 %
Vo=1.2V Vin=5V, 100% Load 87.0 %
Vo=0.75V Vin=5V, 100% Load 81.5 %
FEATURE CHARACTERISTICS
Switching Frequency 300 kHz
ON/OFF Control, (Negative logic)
Logic Low Voltage Module On, Von/off -0.2 0.3 V
Logic High Voltage Module Off, Von/off 2.5 Vin.max V
Logic Low Current Module On, Ion/off 10 µA
Logic High Current Module Off, Ion/off 0.2 1 mA
GENERAL SPECIFICATIONS
MTBF Io=100% of Io, max; Ta=25°C TBD M hours
Weight 2.3 grams