DC-DC CONVERTERS E Class Non-isolated 1
SMT05E Series
3.0-5.5 Vin single output
NEW Product
File Name: smt05e_05_05.pdf Rev (03): 16 Dec 2005
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. E174104
UL 60950 File No. E174104
TÜV Product Service (EN60950) Certificate No. B 03 10 38572 037
CB report and certificate to DE3-51686M1
2 YEAR WARRANTY
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated SPECIFICATIONS
The SMT05E series are non-isolated dc-dc converters packaged in a surface mount footprint
giving designers a cost effective solution for conversion from a 3.3 Vdc to 5 Vdc source. The
SMT05E has a wide input range (3.0 Vdc to 5.5 Vdc) and offers a wide 0.75 Vdc to 3.63 Vdc
output voltage range with a 5 A load, which allows for maximum design flexibility and a pathway
for future upgrades. The SMT05E is designed for applications that include distributed power,
workstations, optical network and wireless applications. Implemented using state of the art
surface-mount technology and automated manufacturing techniques, the SMT05E offers
compact size and efficiencies of up to 94%.
•5 A Current rating
•Input voltage range: 3.0 Vdc to 5.5 Vdc
•Output voltage range: 0.75 Vdc to 3.63 Vdc
•Ultra high efficiency: 94% @ 5 Vin and 3.3 Vout
•Extremely low internal power dissipation
•Minimal thermal design concerns
•Designed in reliability: MTBF of >9 million hours
per Telcordia SR-332
•Ideal solution where board space is at a premium
or tighter card pitch is required
•Industry standard surface-mount footprint
•Available RoHS compliant
EMC CHARACTERISTICS
Electrostatic discharge EN61000-4-2, IEC801-2
Conducted immunity EN61000-4-6
Radiated immunity EN61000-4-3
GENERAL SPECIFICATIONS
Efficiency See Table
Insulation voltage Non-isolated
Switching frequency Fixed 300 kHz typ.
Approvals and EN60950
standards UL/cUL60950
Material flammability UL94V-0
Dimensions (LxWxH) 20.32 x 11.43 x 6.70 mm
0.800 x 0.450 x 0.264 inches
Weight 2.8 g (0.10 oz)
Coplanarity 100 µm
MTBF Telcordia SR-332 9,009,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Operating ambient, -40 ºC to +85 ºC
(See Note 2) temperature
Non-operating -40 ºC to +125 ºC
PROTECTION
Short-circuit Continuous
Thermal Automatic recovery
OUTPUT SPECIFICATIONS
Voltage adjustability 0.75-3.63 Vdc
Setpoint accuracy ±0.4%
Line regulation ±1.0%
Load regulation ±1.0%
Minimum load 0 A
Overshoot/undershoot None
Ripple and noise 75 mV pk-pk
5 Hz to 20MHz 25 mV rms
Temperature co-efficient ±0.01%/ºC
Transient response 60 mV max. deviation
50 µs recovery to
within 1%
INPUT SPECIFICATIONS
Input voltage range 3.0-5.5 Vdc
Input current No load (max.) 150 mA
Input current (max.) 3.9 A max. @ Io max.
and Vout = 3.3 V
Input reflected ripple 40 mA rms
Remote ON/OFF (See Note 1)
Start-up time 20 ms