SilverStone SST-SX700-LPT User Manual

SFX-L Form Factor

SX700-LPT

A pioneering SFX-L form factor power supply

SFX-L form factor for use small form factor computers

700W continuous power output rated for 24/7 operation

Silent running 120mm fan with advanced semi-fanless operation

Strict ±3% voltage regulation and low ripple & noise

High quality construction with all Japanese capacitors

Class-leading single +12V rail with 58.4A

High efficiency with 80 PLUS Platinum certification

100% modular short cables with flexible flat arrays

Support quad PCI-E 8/6pin connectors

SPECIFICATION

SFX-L Form Factor

SST-SX700-LPT

700W Switching Power Supply

With Active PFC 80Plus Platinum

1. General

1.1 Scope

This specification defines the performance characteristics of a single phase 700 watts, 5 output power supply. This specification also defines worldwide safety and electromagnetic compatibility requirements for the power supply which is intended for use in computer products.

2. Input Characteristics

2.1 Input Voltage

Nominal Voltage

100-240 Vrms

2.2 Input Frequency

Nominal Frequency

50-60 Hz

* The power supply must operate at above frequency with 90-264 VACrms input voltage range.

Voltage Variation Range

90 - 264 Vrms

Frequency Variation Range

47 Hz to 63 Hz

2.3 Max. Input AC Current

Max. Input Current

Measuring Range

10.0A

90 - 264 Vrms

2.4 Inrush Current

The power supply must meet inrush requirements for any rated AC voltage, during turn on at any phase of AC voltage, during a single cycle AC dropout condition, during repetitive ON/OFF cycling of AC, and over the specified temperature range. The peak inrush current shall be less than the ratings of its critical components (including input fuse, bulk rectifiers, and surge limiting device).

2.5 Efficiency

SX700-LPT provides an efficiency of 90% at20% load, 92% at50% load, 89% at100% load under115V/60Hz and 230V/50Hz condition.

3. Output characteristics

3.1 Normal Operation Output

Output Voltage

1. +5V

2. +3.3V

3. +12V

4. -12V

5. +5Vsb

Load MIN

0.0A

Range MAX

22A 22A

58.4A

0.3A

3.0A

Regulation

±3% ±3% ±3%

±10%

±5%

Ripple & Noise P-P Max.

50mV

50mV 120mV 120mV

50mV

Maximum continuous total DC output power should not exceed 700W.

Maximum continuous combined load on +3.3VDC and +5VDC outputs shall not exceed 120W. Maximum combined load on 12V outputs shall not exceed 700W.

NOTE: Noise test should be measured with 20 MHz bandwidth frequency oscilloscope. The output terminal shall add a tantalum capacitor of 10uF in parallel with a ceramic capacitor of 0.1uF.

3.2 Remote On/Off Controlled mode

The PSON# signal is required to remotely turn on/off the power supply, PSON# is an active low signal that turns on the output power rails. When this is not pulled low by the system, or left open, the outputs (except the +5VSB) turn off. This signal is pulled to a standby voltage by a pull-up resistor internal to the power supply.

TTL level "H" 2.0 V – 5.25 V "L" 0.0 V – 1.0 V

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