Delta Electronics DNT04 manual Technical Specifications, Parameter, NOTES and CONDITIONS, Vo ≦ Vin

TECHNICAL SPECIFICATIONS
(TA = 25°C, airflow rate = 300 LFM, Vin = 2.4Vdc and 5.5Vdc, nominal Vout unless otherwise noted.)
PARAMETER	NOTES and CONDITIONS		DNT04S0A0R03NFA
ABSOLUTE MAXIMUM RATINGS			Min.	Typ.	Max.	Units
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	A2S
Recommended Input Fuse					TBD	A
OUTPUT CHARACTERISTICS						% Vo,set
Output Voltage Set Point	Vin=5V, Io=Io, max		-2.0	Vo,set	+2.0
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,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
EFFICIENCY	Full load; ESR ≧10mΩ				3000	µF
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

DS_DNT04SIP3A_09262007

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