FEATURES
High Efficiency: 94%@ 5Vin, 3.3V/3A out
Small size and low profile:
0.80” x 0.45” x 0.27” (SMD)
0.90” x 0.40” x 0.25” (SIP)
Standard footprint and pinout
Resistor-based trim
Output voltage programmable from
0.75V to 3.3V via external resistors
Pre-bias startup
No minimum load required
Fixed frequency operation
Input UVLO, Output OTP, OCP
Remote ON/OFF
ISO 9001, TL 9000, ISO 14001, QS 9000,
OHSAS 18001 certified manufacturing
facility
UL/cUL 60950 (US & Canada) Recognized,
and TUV (EN60950)- pending
CE mark meets 73/23/EEC and 93/68/EEC-
pending
Delphi DNT04, Non-Isolated Point of Load
DC/DC Power Modules: 2.4~5.5Vin, 0.75~3.3Vo, 3A out
OPTIONS
The Delphi Series DNT04, 2.4-5.5V input, single output, non-isolated
Point of Load DC/DC converters are the latest offering from a world
leader in power systems technology and manufacturing
—
Delta
Electronics, Inc. The DNT04 series provides a programmable output
voltage from 0.75V to 3.3V using external resistors. This product family
is available in surface mount or SIP package and provides up to 3A of
output current in an industry standard footprint. With creative design
technology and optimization of component placement, these converters
possess outstanding electrical and thermal performance, as well as
extremely high reliability under highly stressful operating conditions.
The DNT04, 3A modules have excellent thermal performance and can
provide full output current at up to 85℃ ambient temperature with no
airflow.
Negative On/Off logic
SMD or SIP package
APPLICATIONS
Telecom/DataCom
Distributed power architectures
Servers and workstations
LAN/WAN applications
Data processing applications
PRELIMINARY DATASHEET
DS_DNT04SMD03_01182007
TECHNICAL SPECIFICATIONS
(T
A
= 25°C, airflow rate = 300 LFM, V
in
= 2.4Vdc and 5.5Vdc, nominal Vout unless otherwise noted.)
PARAMETER
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Operating Temperature
Storage Temperature
INPUT CHARACTERISTICS
Operating Input Voltage
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Transient
Recommended Inout Fuse
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Adjustable Range
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Output Current Range
Output Voltage Over-shoot at Start-up
Output DC Current-Limit Inception
Output Short-Circuit Current (Hiccup Mode)
DYNAMIC CHARACTERISTICS
Dynamic Load Response
Positive Step Change in Output Current
Negative Step Change in Output Current
Setting Time to 10% of Peak Devitation
Turn-On Transient
Start-Up Time, From On/Off Control
Start-Up Time, From Input
Maximum Output Startup Capacitive Load
EFFICIENCY
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
Vo=1.2V
Vo=0.75V
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control, (Negative logic)
Logic Low Voltage
Logic High Voltage
Logic Low Current
Logic High Current
GENERAL SPECIFICATIONS
MTBF
Weight
NOTES and CONDITIONS
DNT04S0A0S03NFA
Min.
Typ.
Max.
5.8
125
125
5.5
2.05
1.9
15
0.2
2.15
2.0
2.4
25
0.5
0.1
TBD
+1.5
3.63
Units
Vdc
°C
°C
V
V
V
A
mA
mA
A
2
S
A
% Vo,set
V
% Vo,set
% Vo,set
% Vo,set
% Vo,set
mV
mV
A
% Vo,set
% Io
Adc (rms)
mV
mV
µs
ms
ms
µF
µF
%
%
%
%
%
%
350
0.3
Vin.max
10
1
kHz
V
V
µA
mA
M hours
grams
0
-40
-55
2.4
1.95
1.8
Refer to Figure 34 for measuring point
Vo
≦
Vin –0.5V
Vin=4.5V Vo=3.3V, Io=Io,max
Vin=2.4V to 5.5V, Io=Io,min to Io,max
Vin=5V, Io=Io, max
Vin=2.4V to 5.5V
Io=Io,min to Io,max
Ta=-40℃ to 85℃
Over sample load, line and temperature
5Hz to 20MHz bandwidth
Full Load, 1µF ceramic, 10µF tantalum
Full Load, 1µF ceramic, 10µF tantalum
-1.5
0.7525
Vo,set
0.2
0.2
0.4
-3.0
30
10
0
Io,s/c
10µF Tan & 1µF Ceramic load cap, 2.5A/µs
50% Io, max to 100% Io, max
100% Io, max to 50% Io, max
Io=Io.max
Von/off, Vo=10% of Vo,set
Vin=Vin,min, Vo=10% of Vo,set
Full load; ESR
≧1mΩ
Full load; ESR
≧10mΩ
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
Vin=5V, 100% Load
250
Module On, Von/off
Module Off, Von/off
Module On, Ion/off
Module Off, Ion/off
Io=100% of Io, max; Ta=25°C
-0.2
2.5
0.2
TBD
2.3
200
1.5
180
180
50
7
7
+3.0
50
15
3
5
1000
3000
94.0
92.0
90.5
89.0
86.5
80.0
300
DS_DNT04SMD3A_01182007
2
ELECTRICAL CHARACTERISTICS CURVES
Figure 1:
Converter efficiency vs. output current (5Vin/3.3Vout)
Figure 2:
Converter efficiency vs. output current (5Vin/2.5Vout)
Figure 3:
Converter efficiency vs. output current (5Vin/1.8Vout)
Figure 4:
Converter efficiency vs. output current (5Vin/1.5Vout)
Figure 5:
Converter efficiency vs. output current (5Vin/1.2Vout)
Figure 6:
Converter efficiency vs. output current (5Vin/0.75Vout)
DS_DNT04SMD3A_01182007
3
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 7:
Output ripple & noise at 5Vin, 3.3V/3A out
Figure 8:
Output ripple & noise at 5Vin, 2.5V/3A out
Figure 9:
Output ripple & noise at 5Vin, 1.8V/3A out
Figure 10:
Output ripple & noise at 5Vin, 1.5V/3A out
Figure 11:
Turn on delay time at 3.3Vin, 1.2V/3A out
Figure 12:
Turn on delay time at 5Vin, 0.75V/3A out
DS_DNT04SMD3A_01182007
4
ELECTRICAL CHARACTERISTICS CURVES (CON.)
Figure 13:
Turn on delay time at 5Vin, 3.3V/3A out
Figure 14:
Turn on delay time at 5Vin, 2.5V/3A out
Figure 15:
Turn on delay time at 5Vin, 1.8V/3A out
Figure 16:
Turn on delay time at 5Vin, 1.5V/3A out
Figure 17:
Turn on delay time at 5Vin, 1.2V/3A out
Figure 18:
Turn on delay time at 5Vin, 0.75V/3A out
DS_DNT04SMD3A_01182007
5
京公网安备 11010802033920号
EEWORLD
