Aries Series, Page 2

Part No. 99–001 Rev. 2.2

WWW.GALAXYPWR.COM

General Specifications

Operating Air Temperature from 0

°C to +45°C with 500 LFM.

3.3V Output Unit

Input Characteristics

Parameter

Symbol

Test Condition

Min

Typ

Max

Units

Operating Input Range

4.5

—

5.5

V

No Load Input Power

——

2

W

Input Current

—

—

20

A

Efficiency

N

88

—

—

%

Reflected Input Ripple (Note 1)

—

—

5.2

Switching Frequency

—

250

—

kHz

Output Voltage Set Point

3.267

3.300

3.333

V

Rated Output Current

—

24

—

A

Load & Line Regulation

—

—

15

mV

Noise and Ripple

—

60

90

Load Range

0

—

24

A

Total Regulation

3.135

3.300

3.465

V

(Load, Line, Temp, Drift)

Remote Sense Compensation

—

—

100

mV

(Round Trip)

Output Overvoltage Protection (Nom)

3.8

—

4.2

V

See Note 3, Latching

Output Voltage Protection

—

—

150

µs

Response Time

Current Limit (Nom)

25

—

30

A

Short Circuit Output

—

—

0.6

Voltage Compliance

Load Transient Response,

—

—

80

mV

pos or neg step

Settling Time

—

—

1200

µs

Turn on Time

—

—

10

ms

per figures 3, 4, & 5

External Load Capacitance (Note 2)

1000

—

9900

µf

Notes: 1. Input filter capacitor Cin= 1000

µF (330µF, ESR 60mΩ, 3 capacitors in parallel) Provide 3" loop between positive

terminal of Cin and Vin of the converter to measure reflected input ripple current.

2. The converter output voltage shall be stable when (30) 330

µF (9900µF total) tantalum (ESR ≤60mΩ) capacitors are

connected across the output of the converter.

3. Adjustment pins J2-18 & 19 are normally left open; see Output Voltage Setting Table on page 5 if using OVP and

output voltage trim adjustment.

General Specifications

Operating Temperature

0

°C to +45°C Ambient Air Temp.

Storage Temperature

–40

°C to +100°C

Relative Humidity

10% to 95% RH, Non-condensing

Vibration

10–500Hz, 0.75g peak

Material Flammability

UL94V-0

Weight

100 grams typ. with heatsink

MTBF

MIL-HDBK-217E

1,200,000 hours*

*Note: 50% load; 45

°C ambient, 500LFM; calculated MTBF